libstd initializaton on sparc64-unknown-linux-gnu fails

[gnzlbg]

Trying to run jemallocator tests on sparc64-unknown-linux-gnu I run into this error:

 Running `qemu-sparc64 /target/sparc64-unknown-linux-gnu/debug/deps/ffi-3572dfd160eda606`
thread '<unnamed>' panicked at 'assertion failed: signal(libc::SIGPIPE, libc::SIG_IGN) != libc::SIG_ERR', libstd/sys/unix/mod.rs:86:9
error: process didn't exit successfully: `qemu-sparc64 /target/sparc64-unknown-linux-gnu/debug/deps/ffi-3572dfd160eda606` (signal: 4, SIGILL: illegal instruction)

which points here: https://github.com/rust-lang/rust/blob/master/src/libstd/sys/unix/mod.rs#L86

This check seems to only depend on the target_os, so I find it weird that it fails for sparc64-unknown-linux-gnu given that it works on other linux targets.

[Enselic]

Triage: Do the tests still fail? Wanted to check since 5 years have passed and circumstances might have changed.