[rustc bug with workaround] Test Suite ICE for miniz_oxide

[theduke]

I'm getting an ICE while running ./test.sh --release.

Log with backtrace attached below.

Is this expected or worthy of a report?

Environment:
Commit: 4757371
OS/Arch: Linux desktop-1 5.4.55 #1-NixOS SMP Fri Jul 31 16:39:32 UTC 2020 x86_64 GNU/Linux
rustc: rustc 1.47.0-nightly (9b88e0a86 2020-08-15)

log.txt

[bjorn3]

The workaround

Is this the first time you ran ./test.sh --release or the second? If it is the second then rust-lang/rust#74946 is likely the cause. As a workaround you can add CARGO_INCREMENTAL=0 at the start of https://github.com/bjorn3/rustc_codegen_cranelift/blob/4757371aba4e8aaf2cebb4ba32299cf7f9364aaf/build_sysroot/build_sysroot.sh#L21

[bjorn3]

ICE's in the test suite are never expected. I always run it before pushing any changes and CI runs it.

[theduke]

CARGO_INCREMENTAL=0 does indeed fix it.

[bjorn3]

I will leave this open for when other people hit the same issue.