[INFO] cloning repository mgoszcz2/objc_rust
[INFO] running `"git" "clone" "--bare" "git://github.com/mgoszcz2/objc_rust.git" "work/cache/sources/gh/mgoszcz2/objc_rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/mgoszcz2/objc_rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/mgoszcz2/objc_rust" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/mgoszcz2/objc_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/mgoszcz2/objc_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mgoszcz2/objc_rust" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/mgoszcz2/objc_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/mgoszcz2/objc_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8df9b4872d669f92cae09a3ecd8e2251d36a2144
[INFO] sha for GitHub repo mgoszcz2/objc_rust: 8df9b4872d669f92cae09a3ecd8e2251d36a2144
[INFO] validating manifest of mgoszcz2/objc_rust on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mgoszcz2/objc_rust on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mgoszcz2/objc_rust
[INFO] finished frobbing mgoszcz2/objc_rust
[INFO] frobbed toml for mgoszcz2/objc_rust written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/mgoszcz2/objc_rust/Cargo.toml
[INFO] started frobbing mgoszcz2/objc_rust
[INFO] finished frobbing mgoszcz2/objc_rust
[INFO] frobbed toml for mgoszcz2/objc_rust written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/mgoszcz2/objc_rust/Cargo.toml
[INFO] crate mgoszcz2/objc_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mgoszcz2/objc_rust against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-1/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/mgoszcz2/objc_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 387564f4d0545430129dd9e2416164640cd12a22002f7123e079060547107a9f
[INFO] running `"docker" "start" "-a" "387564f4d0545430129dd9e2416164640cd12a22002f7123e079060547107a9f"`
[INFO] [stderr]     Checking malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking objc v0.2.1
[INFO] [stderr] error: failed to run custom build command for `objc_rust v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/objc_rust-7393b153183ba3d1/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] OPT_LEVEL = Some("0")
[INFO] [stderr] PROFILE = Some("debug")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] debug=true opt-level=0
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CC = None
[INFO] [stderr] CC = None
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CFLAGS = None
[INFO] [stderr] CFLAGS = None
[INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-g" "-m64" "-fPIC" "-fmodules" "-o" "/opt/crater/target/debug/build/objc_rust-218ca788d249b5de/out/objc/sample.o" "-c" "objc/sample.m"
[INFO] [stderr] cargo:warning=cc: error: unrecognized command line option '-fmodules'; did you mean '-fmoduleinfo'?
[INFO] [stderr] ExitStatus(ExitStatus(256))
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] command did not execute successfully, got: exit code: 1
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'explicit panic', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:897:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561716cd862b - backtrace::backtrace::libunwind::trace::hc6a4966d389b62be
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561716cd862b - backtrace::backtrace::trace_unsynchronized::h234cd6c2c95fa587
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561716cd862b - std::sys_common::backtrace::_print::h2896bece16680b31
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561716cd862b - std::sys_common::backtrace::print::h5f4d4b954705d426
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561716cd862b - std::panicking::default_hook::{{closure}}::h3d52949e2d73c1aa
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x561716cd832c - std::panicking::default_hook::h4b88c02cc00064f5
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x561716cd8cf0 - std::panicking::rust_panic_with_hook::he5596ad1952b7279
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x561716ca3ee8 - std::panicking::begin_panic::he166fb4171129094
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/panicking.rs:409
[INFO] [stderr]    8:     0x561716c971e8 - gcc::fail::h73452b2a6b131992
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:897
[INFO] [stderr]    9:     0x561716c96e3d - gcc::run::h909e795818f85705
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:891
[INFO] [stderr]   10:     0x561716c8e8cb - gcc::Config::compile_object::hde52958c86aa2bcf
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:409
[INFO] [stderr]   11:     0x561716c8e17c - gcc::Config::compile_objects::ha22bb7827507c44f
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:379
[INFO] [stderr]   12:     0x561716c8d756 - gcc::Config::compile::hb220e384d4ac7c0f
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.35/src/lib.rs:344
[INFO] [stderr]   13:     0x561716c8c0cb - build_script_build::main::h59727f8876965c24
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:4
[INFO] [stderr]   14:     0x561716c8c850 - std::rt::lang_start::{{closure}}::hcb4ff66835393dfb
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64
[INFO] [stderr]   15:     0x561716cd8743 - std::rt::lang_start_internal::{{closure}}::h97d240c87982728f
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   16:     0x561716cd8743 - std::panicking::try::do_call::h657ecdd23710c935
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   17:     0x561716ce00fa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   18:     0x561716cd91fd - std::panicking::try::h52772d620cb80373
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   19:     0x561716cd91fd - std::panic::catch_unwind::hac02eb84ea8f3a3e
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   20:     0x561716cd91fd - std::rt::lang_start_internal::h9fab34d7c96dfdc9
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   21:     0x561716c8c829 - std::rt::lang_start::h72403b32f8f274d5
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64
[INFO] [stderr]   22:     0x561716c8c12a - main
[INFO] [stderr]   23:     0x7f83b124a2e1 - __libc_start_main
[INFO] [stderr]   24:     0x561716c8bf3a - _start
[INFO] [stderr]   25:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "387564f4d0545430129dd9e2416164640cd12a22002f7123e079060547107a9f"`
[INFO] running `"docker" "rm" "-f" "387564f4d0545430129dd9e2416164640cd12a22002f7123e079060547107a9f"`
[INFO] [stdout] 387564f4d0545430129dd9e2416164640cd12a22002f7123e079060547107a9f