Julia: precompile failure with IO redirection

[iblis17]

I can reproduce this on both Linux and FreeBSD.

$ (g)make > /tmp/test.log

and got this on stderr:

JULIA usr/lib/julia/sys-o.a
fatal: error thrown and no exception handler available. 
ErrorException("Task cannot be serialized")
rec_backtrace at /home/iblis/git/julia/src/stackwalk.c:94
record_backtrace at /home/iblis/git/julia/src/task.c:249
jl_throw at /home/iblis/git/julia/src/task.c:580
jl_error at /home/iblis/git/julia/src/rtutils.c:41
jl_serialize_value_ at /home/iblis/git/julia/src/staticdata.c:295
jl_serialize_value_ at /home/iblis/git/julia/src/staticdata.c:287
jl_serialize_value_ at /home/iblis/git/julia/src/julia.h:911 [inlined]
jl_serialize_module at /home/iblis/git/julia/src/staticdata.c:231 [inlined]
jl_serialize_value_ at /home/iblis/git/julia/src/staticdata.c:292
jl_serialize_value_ at /home/iblis/git/julia/src/staticdata.c:253 [inlined]
jl_serialize_value_ at /home/iblis/git/julia/src/staticdata.c:304
...

This issue make some buildtools unhappy, like poudriere, which serves with the
FreeBSD package binaries.

[KristofferC]

Thanks for reproducer. This is likely what makes Nanosoldier unhappy as well @ararslan. Will look at it.

[iblis17]

Ah, just found the link about Nanosoldier on Slack.
ref https://github.com/JuliaLang/julia/pull/28857#issuecomment-415622883

[ararslan]

I assume this occurs because the precompile generator thing relies on output redirection?

[KristofferC]

The output redirection for the precompilation generation process should be fully isolated from that though. But apparently not. Looking at it now.