port www/qt5-webengine fails reproducible at the same place compilation

On a recent CURRENT (August 5) and ports from git September 13, the
above port fails in poudriere reproducible at the same place during compilation:


www/qt5-webengine for pkg qt5-webengine-5.15.8_6 failed after 02:46:52
with

lines 120952 ff from poudriere log file qt5-webengine-5.15.8_6.log 
	 
120952 ../../../../qtwebengine-everywhere-src-5.15.8/src/3rdparty/chromium/gpu/command_buffer/service/program_manager.cc:627:25: error: no member named 'as_string' in 'absl::string_view'
120953   return output + input.as_string();
120954                   ~~~~~ ^
120955 7 warnings and 1 error generated.
... (~500 lines deleted)
121476 9 warnings generated.
121477 ninja: build stopped: subcommand failed.
121478 *** [run_ninja] Error code 1

there is a similar package fallout as mail in 
https://www.mail-archive.com/freebsd-pkg-fallout@freebsd.org/msg2193618.html
to kde@FreeBSD.org

The full log is here: http://www.unixarea.de/qt5-webengine-5.15.8_6.log.txt

Should I file a new PR?

	matthias

-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
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