[package - 151amd64-default][lang/mono6.8] Failed for mono6.8-6.8.0.123_5 in build

From: <pkg-fallout_at_FreeBSD.org>
Date: Tue, 20 Oct 2026 16:03:02 UTC
You are receiving this mail as a port that you maintain
is failing to build on the FreeBSD package build server.
Please investigate the failure and submit a PR to fix
build.

Maintainer:     ports@FreeBSD.org
Log URL:        https://pkg-status.freebsd.org/beefy23/data/151amd64-default/ce97aa4dd1d9/logs/mono6.8-6.8.0.123_5.log
Build URL:      https://pkg-status.freebsd.org/beefy23/build.html?mastername=151amd64-default&build=ce97aa4dd1d9
Log:

=>> Building lang/mono6.8
build started at Tue Oct 20 15:41:52 UTC 2026
port directory: /usr/ports/lang/mono6.8
package name: mono6.8-6.8.0.123_5
building for: FreeBSD 151amd64-default-job-02 15.1-RELEASE-p5 FreeBSD 15.1-RELEASE-p5 amd64
maintained by: ports@FreeBSD.org
Makefile datestamp: -rw-r--r--  1 root wheel 4150 May  9 01:01 /usr/ports/lang/mono6.8/Makefile
Ports top last git commit: ce97aa4dd1d9326775655b810ef384f38f78f0e5
Ports top unclean checkout: no
Port dir last git commit: 2a7c0561200c6cf9d0c0252cd4a7ab446eca8e4a
Port dir unclean checkout: no
Poudriere version: poudriere-git-3.4.8-3-gd92fb7c0
Host OSVERSION: 1600022
Jail OSVERSION: 1501000
Job Id: 02

---Begin Environment---
SHELL=/bin/sh
OSVERSION=1501000
UNAME_v=FreeBSD 15.1-RELEASE-p5
UNAME_r=15.1-RELEASE-p5
BLOCKSIZE=K
MAIL=/var/mail/root
MM_CHARSET=UTF-8
LANG=C.UTF-8
STATUS=1
HOME=/root
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
MAKE_OBJDIR_CHECK_WRITABLE=0
LOCALBASE=/usr/local
USER=root
POUDRIERE_NAME=poudriere-git
LIBEXECPREFIX=/usr/local/libexec/poudriere
POUDRIERE_VERSION=3.4.8-3-gd92fb7c0
MASTERMNT=/usr/local/poudriere/data/.m/151amd64-default/ref
LC_COLLATE=C
POUDRIERE_BUILD_TYPE=bulk
PACKAGE_BUILDING=yes
SAVED_TERM=
OUTPUT_REDIRECTED_STDERR=4
OUTPUT_REDIRECTED=1
PWD=/usr/local/poudriere/data/.m/151amd64-default/02/.p
OUTPUT_REDIRECTED_STDOUT=3
P_PORTS_FEATURES=FLAVORS SUBPACKAGES SELECTED_OPTIONS
MASTERNAME=151amd64-default
SCRIPTPREFIX=/usr/local/share/poudriere
SCRIPTNAME=bulk.sh
OLDPWD=/usr/local/poudriere/data/.m/151amd64-default/ref/.p/pool
POUDRIERE_PKGNAME=poudriere-git-3.4.8-3-gd92fb7c0
SCRIPTPATH=/usr/local/share/poudriere/bulk.sh
POUDRIEREPATH=/usr/local/bin/poudriere
---End Environment---

---Begin Poudriere Port Flags/Env---
PORT_FLAGS=
PKGENV=
FLAVOR=
MAKE_ARGS=
---End Poudriere Port Flags/Env---

---Begin OPTIONS List---
===> The following configuration options are available for mono6.8-6.8.0.123_5:
     BIGARRAY=off: Enable allocating arrays greater than Int32.MaxValue
     MONODEV=off: Build for Mono development (disables crash privacy)
     MONOLITE=on: Use monolite to bootstrap mcs (otherwise use installed mcs)
     NINJA=off: Use ninja to build wherever possible
     NLS=on: NLS Localization Support
     ODBC=off: System.Data: support for unixODBC
     SPECTRE=off: Enable internal Mono Spectre mitigations (SEE pkg-descr)
     X11=on: X11 (graphics) support
===> Use 'make config' to modify these settings
---End OPTIONS List---

--MAINTAINER--
ports@FreeBSD.org
--End MAINTAINER--

--CONFIGURE_ARGS--
 --disable-dtrace --disable-big-arrays --with-x --prefix=/usr/local ${_LATE_CONFIGURE_ARGS}
--End CONFIGURE_ARGS--

--CONFIGURE_ENV--
ac_cv_header_sys_inotify_h=yes MAKE=/usr/local/bin/gmake ac_cv_path_PERL=/usr/local/bin/perl ac_cv_path_PERL_PATH=/usr/local/bin/perl  PERL_USE_UNSAFE_INC=1 PYTHON="/usr/local/bin/python3.12" XDG_DATA_HOME=/wrkdirs/usr/ports/lang/mono6.8/work  XDG_CONFIG_HOME=/wrkdirs/usr/ports/lang/mono6.8/work  XDG_CACHE_HOME=/wrkdirs/usr/ports/lang/mono6.8/work/.cache  HOME=/wrkdirs/usr/ports/lang/mono6.8/work TMPDIR="/tmp" PATH=/wrkdirs/usr/ports/lang/mono6.8/work/.bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin PKG_CONFIG_LIBDIR=/wrkdirs/usr/ports/lang/mono6.8/work/.pkgconfig:/usr/local/libdata/pkgconfig:/usr/local/share/pkgconfig:/usr/libdata/pkgconfig SHELL=/bin/sh CONFIG_SHELL=/bin/sh DEFAULT_AUTOCONF=2.69 CMAKE_PREFIX_PATH="/usr/local" CONFIG_SITE=/usr/ports/Templates/config.site lt_cv_sys_max_cmd_len=524288
--End CONFIGURE_ENV--

--MAKE_ENV--
MONO_SHARED_DIR="/wrkdirs/usr/ports/lang/mono6.8/work"  INSTALL_STRIP_FLAG="-s" PERL_USE_UNSAFE_INC=1 XDG_DATA_HOME=/wrkdirs/usr/ports/lang/mono6.8/work  XDG_CONFIG_HOME=/wrkdirs/usr/ports/lang/mono6.8/work  XDG_CACHE_HOME=/wrkdirs/usr/ports/lang/mono6.8/work/.cache  HOME=/wrkdirs/usr/ports/lang/mono6.8/work TMPDIR="/tmp" PATH=/wrkdirs/usr/ports/lang/mono6.8/work/.bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin PKG_CONFIG_LIBDIR=/wrkdirs/usr/ports/lang/mono6.8/work/.pkgconfig:/usr/local/libdata/pkgconfig:/usr/local/share/pkgconfig:/usr/libdata/pkgconfig MK_DEBUG_FILES=no MK_KERNEL_SYMBOLS=no SHELL=/bin/sh NO_LINT=YES DEFAULT_AUTOCONF=2.69 PREFIX=/usr/local  LOCALBASE=/usr/local  CC="cc" CFLAGS="-O2 -pipe  -DLIBICONV_PLUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing "  CPP="cpp" CPPFLAGS="-DLIBICONV_PLUG -isystem /usr/local/include"  LDFLAGS=" " LIBS="-L/usr/local/lib"  CXX="c++" CXXFLAGS="-O2 -pipe -DLIBICONV_PLUG -fsta
ck-protector-strong -isystem /usr/local/include -fno-strict-aliasing   -DLIBICONV_PLUG -isystem /usr/local/include " BSD_INSTALL_PROGRAM="install  -s -m 555"  BSD_INSTALL_LIB="install  -s -m 0644"  BSD_INSTALL_SCRIPT="install  -m 555"  BSD_INSTALL_DATA="install  -m 0644"  BSD_INSTALL_MAN="install  -m 444"
--End MAKE_ENV--

--PLIST_SUB--
 BIGARRAY="@comment " NO_BIGARRAY="" MONODEV="@comment " NO_MONODEV="" MONOLITE="" NO_MONOLITE="@comment " NINJA="@comment " NO_NINJA="" NLS="" NO_NLS="@comment " ODBC="@comment " NO_ODBC="" SPECTRE="@comment " NO_SPECTRE="" X11="" NO_X11="@comment " PYTHON_INCLUDEDIR=include/python3.12  PYTHON_LIBDIR=lib/python3.12  PYTHON_PLATFORM=freebsd15  PYTHON_SITELIBDIR=lib/python3.12/site-packages  PYTHON_SUFFIX=312  PYTHON_BASESUFFIX=312  PYTHON_TAG=.cpython-312  PYTHON_SOABI=.cpython-312  PYTHON_VER=3.12  PYTHON_BASEVER=3.12  PYTHON_VERSION=python3.12 PYTHON2="@comment " PYTHON3="" OSREL=15.1 PREFIX=%D LOCALBASE=/usr/local  RESETPREFIX=/usr/local LIB32DIR=lib PERL_VERSION=5.42.3  PERL_VER=5.42  PERL5_MAN1=lib/perl5/site_perl/man/man1  PERL5_MAN3=lib/perl5/site_perl/man/man3  SITE_PERL=lib/perl5/site_perl  SITE_ARCH=lib/perl5/site_perl/mach/5.42 DOCSDIR="share/doc/mono"  EXAMPLESDIR="share/examples/mono"  DATADIR="share/mono"  WWWDIR="www/mono"  ETCDIR="etc/mono"
--End PLIST_SUB--

--SUB_LIST--
 BIGARRAY="@comment " NO_BIGARRAY="" MONODEV="@comment " NO_MONODEV="" MONOLITE="" NO_MONOLITE="@comment " NINJA="@comment " NO_NINJA="" NLS="" NO_NLS="@comment " ODBC="@comment " NO_ODBC="" SPECTRE="@comment " NO_SPECTRE="" X11="" NO_X11="@comment " PYTHON_INCLUDEDIR=/usr/local/include/python3.12  PYTHON_LIBDIR=/usr/local/lib/python3.12  PYTHON_PLATFORM=freebsd15  PYTHON_SITELIBDIR=/usr/local/lib/python3.12/site-packages  PYTHON_SUFFIX=312  PYTHON_BASESUFFIX=312  PYTHON_TAG=.cpython-312  PYTHON_SOABI=.cpython-312  PYTHON_VER=3.12  PYTHON_BASEVER=3.12  PYTHON_VERSION=python3.12 PYTHON2="@comment " PYTHON3="" PREFIX=/usr/local LOCALBASE=/usr/local  DATADIR=/usr/local/share/mono DOCSDIR=/usr/local/share/doc/mono EXAMPLESDIR=/usr/local/share/examples/mono  WWWDIR=/usr/local/www/mono ETCDIR=/usr/local/etc/mono
--End SUB_LIST--

---Begin make.conf---
USE_PACKAGE_DEPENDS=yes
BATCH=yes
WRKDIRPREFIX=/wrkdirs
PORTSDIR=/usr/ports
PACKAGES=/packages
DISTDIR=/distfiles
PACKAGE_BUILDING=yes
PACKAGE_BUILDING_FLAVORS=yes
####  ####
# XXX: We really need this but cannot use it while 'make checksum' does not
# try the next mirror on checksum failure.  It currently retries the same
# failed mirror and then fails rather then trying another.  It *does*
# try the next if the size is mismatched though.
#MASTER_SITE_FREEBSD=yes
# Build ALLOW_MAKE_JOBS_PACKAGES with 3 jobs
MAKE_JOBS_NUMBER=3
#### Misc Poudriere ####
.include "/etc/make.conf.ports_env"
GID=0
UID=0
---End make.conf---
--Resource limits--
cpu time               (seconds, -t)  unlimited
file size           (512-blocks, -f)  unlimited
data seg size           (kbytes, -d)  33554432
stack size              (kbytes, -s)  524288
core file size      (512-blocks, -c)  unlimited
max memory size         (kbytes, -m)  unlimited
locked memory           (kbytes, -l)  unlimited
max user processes              (-u)  89999
open files                      (-n)  8192
virtual mem size        (kbytes, -v)  unlimited
swap limit              (kbytes, -w)  unlimited
socket buffer size       (bytes, -b)  unlimited
pseudo-terminals                (-p)  unlimited
kqueues                         (-k)  unlimited
umtx shared locks               (-o)  unlimited
pipebuf                         (-y)  unlimited
--End resource limits--
=======================<phase: check-sanity   >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>   NOTICE:

The mono port currently does not have a maintainer. As a result, it is
more likely to have unresolved issues, not be up-to-date, or even be removed in
the future. To volunteer to maintain this port, please create an issue at:

https://bugs.freebsd.org/bugzilla

More information about port maintainership is available at:

https://docs.freebsd.org/en/articles/contributing/#ports-contributing

===>  License MIT accepted by the user
===========================================================================
=======================<phase: pkg-depends    >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===>   mono6.8-6.8.0.123_5 depends on file: /usr/local/sbin/pkg - not found
===>   Installing existing package /packages/All/pkg-2.8.4.pkg
[151amd64-default-job-02] Installing pkg-2.8.4...
[151amd64-default-job-02] Extracting pkg-2.8.4: .......... done
===>   mono6.8-6.8.0.123_5 depends on file: /usr/local/sbin/pkg - found
===>   Returning to build of mono6.8-6.8.0.123_5
===========================================================================
=======================<phase: fetch-depends  >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===========================================================================
=======================<phase: fetch          >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>   NOTICE:

The mono port currently does not have a maintainer. As a result, it is
more likely to have unresolved issues, not be up-to-date, or even be removed in
the future. To volunteer to maintain this port, please create an issue at:

https://bugs.freebsd.org/bugzilla

More information about port maintainership is available at:

https://docs.freebsd.org/en/articles/contributing/#ports-contributing

===>  License MIT accepted by the user
===> Fetching all distfiles required by mono6.8-6.8.0.123_5 for building
===========================================================================
=======================<phase: checksum       >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>   NOTICE:

The mono port currently does not have a maintainer. As a result, it is
more likely to have unresolved issues, not be up-to-date, or even be removed in
the future. To volunteer to maintain this port, please create an issue at:

https://bugs.freebsd.org/bugzilla

More information about port maintainership is available at:

https://docs.freebsd.org/en/articles/contributing/#ports-contributing

===>  License MIT accepted by the user
===> Fetching all distfiles required by mono6.8-6.8.0.123_5 for building
=> SHA256 Checksum OK for mono-6.8.0.123.tar.xz.
<snip>
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Mono.Profiler.Log_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Test/ProfilerTestRun.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Test/ProfilerTests.cs'
// gensources produced 2 error(s) and a set of 1 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_Mono.Profiler.Log_xtest.dll.response Mono.Profiler.Log_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log'
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Mono.Profiler.Log_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Test/ProfilerTestRun.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log/Test/ProfilerTests.cs'
// gensources produced 2 error(s) and a set of 1 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_Mono.Profiler.Log_xtest.dll.response Mono.Profiler.Log_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/Mono.Profiler.Log'
Creating ../../build/deps/unix_net_4_x_Mono.Runtime.Tests_test.dll.makefrag ...
Makefile:17: warning: overriding recipe for target '../../class/lib/net_4_x-unix/System.Runtime.CompilerServices.Unsafe.dll'
../../build/library.make:335: warning: ignoring old recipe for target '../../class/lib/net_4_x-unix/System.Runtime.CompilerServices.Unsafe.dll'
Creating ../../build/deps/unix_net_4_x_System.Runtime.CompilerServices.Unsafe_xtest.dll.makefrag ...
Makefile:17: warning: overriding recipe for target '../../class/lib/net_4_x-unix/System.Runtime.CompilerServices.Unsafe.dll'
../../build/library.make:335: warning: ignoring old recipe for target '../../class/lib/net_4_x-unix/System.Runtime.CompilerServices.Unsafe.dll'
Creating ../../build/deps/unix_net_4_x_Microsoft.Build.Framework_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_Microsoft.Build.Utilities_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_Microsoft.Build.Engine_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_Mono.XBuild.Tasks_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_Microsoft.Build.Tasks_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_Microsoft.Build_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_corlib_test.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_corlib_xtest.dll.makefrag ...
Assembling '../../class/corlib/System.Runtime.CompilerServices/Unsafe.il' , no listing file, to dll --> '../../class/lib/net_4_x-unix/corlib.unsafe.dll.tmp'

../../class/corlib/System.Runtime.CompilerServices/Unsafe.il : Warning -- Reference to undeclared extern assembly 'mscorlib', adding.
Operation completed successfully
CSC     [net_4_x-unix] mscorlib.dll
Creating ../../build/deps/unix_net_4_x_Mono.Security_test.dll.makefrag ...
CSC     [net_4_x-unix] Mono.Security.dll
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/Configuration.Certificates.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/TestConfiguration.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/NetworkStreamHelper.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System/RemoteExecutorTests.cs'
// gensources produced 4 error(s) and a set of 202 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_System_xtest.dll.response System_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System'
Creating ../../build/deps/unix_net_4_x_System_test.dll.makefrag ...
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/Configuration.Certificates.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/TestConfiguration.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/NetworkStreamHelper.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System/RemoteExecutorTests.cs'
// gensources produced 4 error(s) and a set of 202 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_System_xtest.dll.response System_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System'
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/Configuration.Certificates.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/TestConfiguration.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/test-helpers/NetworkStreamHelper.cs'
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System/System/RemoteExecutorTests.cs'
// gensources produced 4 error(s) and a set of 202 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_System_xtest.dll.response System_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System'
CSC     [net_4_x-unix] System.dll
Creating ../../build/deps/unix_net_4_x_System.Xml_xtest.dll.makefrag ...
Creating ../../build/deps/unix_net_4_x_System.Xml_test.dll.makefrag ...
CSC     [net_4_x-unix] System.Xml.dll
CSC     [net_4_x-unix] Mono.Posix.dll
CSC     [net_4_x-unix] System.Security.dll
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core/System.Core_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core/corefx/SR.tests.cs'
// gensources produced 1 error(s) and a set of 422 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_System.Core_xtest.dll.response System.Core_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core'
// Error(s) in file /wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core/System.Core_xtest.dll.sources:
File does not exist: '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core/corefx/SR.tests.cs'
// gensources produced 1 error(s) and a set of 422 filename(s)
// Invoked with '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/lib/build/gensources.exe --strict --platformsdir:./../../build ../../build/deps/unix_net_4_x_System.Core_xtest.dll.response System.Core_xtest.dll unix net_4_x'
// Working directory was '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Core'
CSC     [net_4_x-unix] System.Core.dll
Mono.Unix/UnixEncoding.cs(312,44): warning CS3001: Argument type 'char*' is not CLS-compliant
Mono.Unix/UnixEncoding.cs(312,72): warning CS3001: Argument type 'byte*' is not CLS-compliant
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/Common/src/System/Security/Cryptography/Asn1V2.cs(405,13): warning CS0114: 'SpanBasedEncoding.GetByteCount(ReadOnlySpan<char>)' hides inherited member 'Encoding.GetByteCount(ReadOnlySpan<char>)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/Common/src/System/Security/Cryptography/Asn1V2.cs(440,13): warning CS0114: 'SpanBasedEncoding.GetCharCount(ReadOnlySpan<byte>)' hides inherited member 'Encoding.GetCharCount(ReadOnlySpan<byte>)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignedCms.cs(109,24): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignedCms.cs(137,24): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/CmsSigner.cs(123,51): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/CmsSigner.cs(172,51): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/CmsSigner.cs(226,52): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignedCms.cs(348,13): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignerInfo.cs(316,21): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignedCms.cs(481,21): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Pal/AnyOS/ManagedPal.Encrypt.cs(82,55): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Pal/AnyOS/ManagedPal.Encrypt.cs(147,20): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Pal/AnyOS/ManagedPal.cs(19,28): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Pal/AnyOS/ManagedPal.cs(25,21): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignerInfo.cs(712,20): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/external/corefx/src/System.Security.Cryptography.Pkcs/src/System/Security/Cryptography/Pkcs/SignerInfo.cs(749,31): warning CS0436: The type 'Helpers' in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs' conflicts with the imported type 'Helpers' in 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Using the type defined in '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/mcs/class/System.Security/../../../external/corefx/src/System.Security.Cryptography.Pkcs/src/Internal/Cryptography/Helpers.cs'.
CSC     [net_4_x-unix] System.Drawing.dll

Unhandled Exception:
System.InvalidOperationException: An attempt was made to transition a task to a final state when it had already completed.
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetException (System.Exception exception) [0x0004b] in <0fe693e508d04a4385c992c65d0716de>:0 
  at Microsoft.CodeAnalysis.CommandLine.BuildResponse.ReadAsync (System.IO.Stream stream, System.Threading.CancellationToken cancellationToken) [0x001f6] in <dcaf03a1bf974fdfa69b45631d10a8bd>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x0001a] in <0fe693e508d04a4385c992c65d0716de>:0 
--- End of stack trace from previous location where exception was thrown ---

  at Internal.Runtime.Augments.RuntimeAugments.ReportUnhandledException (System.Exception exception) [0x00006] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.ThrowAsyncIfNecessary (System.Exception exc) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x00020] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishContinuations () [0x00052] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishStageThree () [0x0003c] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x0004f] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x0003d] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (System.Threading.Tasks.Task`1[TResult] completedTask) [0x00010] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult () [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at Microsoft.CodeAnalysis.CommandLine.BuildProtocolConstants.ReadAllAsync (System.IO.Stream stream, System.Byte[] buffer, System.Int32 count, System.Threading.CancellationToken cancellationToken) [0x0013f] in <dcaf03a1bf974fdfa69b45631d10a8bd>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x0001a] in <0fe693e508d04a4385c992c65d0716de>:0 
--- End of stack trace from previous location where exception was thrown ---

  at Internal.Runtime.Augments.RuntimeAugments.ReportUnhandledException (System.Exception exception) [0x00006] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.ThrowAsyncIfNecessary (System.Exception exc) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x00020] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishContinuations () [0x00052] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishStageThree () [0x0003c] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x0004f] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x0003d] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.IO.Pipes.PipeStream.ReadAsyncCore (System.Memory`1[T] destination, System.Threading.CancellationToken cancellationToken) [0x0028a] in <409dc5302ddf448691e7ac26d8027cd6>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x00008] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00074] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.InvalidOperationException: An attempt was made to transition a task to a final state when it had already completed.
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetException (System.Exception exception) [0x0004b] in <0fe693e508d04a4385c992c65d0716de>:0 
  at Microsoft.CodeAnalysis.CommandLine.BuildResponse.ReadAsync (System.IO.Stream stream, System.Threading.CancellationToken cancellationToken) [0x001f6] in <dcaf03a1bf974fdfa69b45631d10a8bd>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x0001a] in <0fe693e508d04a4385c992c65d0716de>:0 
--- End of stack trace from previous location where exception was thrown ---

  at Internal.Runtime.Augments.RuntimeAugments.ReportUnhandledException (System.Exception exception) [0x00006] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.ThrowAsyncIfNecessary (System.Exception exc) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x00020] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishContinuations () [0x00052] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishStageThree () [0x0003c] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x0004f] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x0003d] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (System.Threading.Tasks.Task`1[TResult] completedTask) [0x00010] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult () [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at Microsoft.CodeAnalysis.CommandLine.BuildProtocolConstants.ReadAllAsync (System.IO.Stream stream, System.Byte[] buffer, System.Int32 count, System.Threading.CancellationToken cancellationToken) [0x0013f] in <dcaf03a1bf974fdfa69b45631d10a8bd>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x0001a] in <0fe693e508d04a4385c992c65d0716de>:0 
--- End of stack trace from previous location where exception was thrown ---

  at Internal.Runtime.Augments.RuntimeAugments.ReportUnhandledException (System.Exception exception) [0x00006] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.ThrowAsyncIfNecessary (System.Exception exc) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction (System.Action action, System.Boolean allowInlining, System.Threading.Tasks.Task& currentTask) [0x00020] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishContinuations () [0x00052] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task.FinishStageThree () [0x0003c] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x0004f] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x0003d] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.IO.Pipes.PipeStream.ReadAsyncCore (System.Memory`1[T] destination, System.Threading.CancellationToken cancellationToken) [0x0028a] in <409dc5302ddf448691e7ac26d8027cd6>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext (System.Object stateMachine) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00024] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.Tasks.AwaitTaskContinuation.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x00008] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00074] in <0fe693e508d04a4385c992c65d0716de>:0 
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in <0fe693e508d04a4385c992c65d0716de>:0 
gmake[9]: *** [../../build/library.make:335: ../../class/lib/net_4_x-unix/System.Drawing.dll] Error 255
gmake[8]: *** [../../build/rules.make:220: do-all] Error 2
gmake[7]: *** [../build/rules.make:258: System.Drawing] Error 2
gmake[7]: *** Waiting for unfinished jobs....
gmake[6]: *** [../build/rules.make:241: all-recursive] Error 1
gmake[5]: *** [build/rules.make:241: all-recursive] Error 1
gmake[4]: *** [Makefile:58: profile-do--net_4_x--all] Error 2
gmake[3]: *** [Makefile:54: profiles-do--all] Error 2
gmake[2]: *** [Makefile:706: all-mcs] Error 2
gmake[2]: Leaving directory '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123/runtime'
gmake[1]: *** [Makefile:622: all-recursive] Error 1
gmake[1]: Leaving directory '/wrkdirs/usr/ports/lang/mono6.8/work/mono-6.8.0.123'
gmake: *** [Makefile:550: all] Error 2
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.
*** Error code 1

Stop.
make: stopped making "build" in /usr/ports/lang/mono6.8