fish rust build fails with "could not exec the linker `x86_64-pc-cygwin-gcc`"

[Andrew Schulman]

>That's for 32bit only as on 64bit any newly compiled DLL should not overlap
>with already rebased DLL (and empirically doesn't unless BLODA steps in,
>to which these days unfortunaltely Windows Defender needs to be counted).

I'm afraid you're right about Windows Defender.

I have two client hosts, running Windows 10 and 11 respectively. The build
fails in the same random way on both of them. The only BLODA-ish app on both
of them is Windows Defender.

But when I push the build up to scallywag, it succeeds every time. Which is
good news.

So I'll keep working on this. Thanks for your help.
Andrew