FreeBSD Port: firefox-63.0.1,1 multiple errors build

[Yuri Pankov]

Yuri Pankov wrote:
> Montgomery-Smith, Stephen wrote:
>> On 10/31/18 1:12 PM, Alex V. Petrov wrote:
>> [lots of build errors snipped]
>>
>> I found that when I downgraded rust-cbindgen to 0.6.6_1 that this fixed
>> the build problems.  So I suspect it is version 0.6.7 of rust-cbindgen
>> that is causing the build errors.
> 
> Fails for me even with 0.6.6_1.

And it built with rust-cbindgen-0.6.7, so I'm now wondering if it's not
about the version, and has something to do with the fact that 0.6.6_1
was installed using pkg, and update to 0.6.7 was done using ports.