[INFO] updating cached repository https://github.com/paulcacheux/bfc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c52a2691b57a7d3c6055274743927d78ca2c5ea
[INFO] checking paulcacheux/bfc against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulcacheux%2Fbfc" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulcacheux/bfc on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/paulcacheux/bfc
[INFO] finished tweaking git repo https://github.com/paulcacheux/bfc
[INFO] tweaked toml for git repo https://github.com/paulcacheux/bfc written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/paulcacheux/bfc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] effb4408f425ad80e9cbb66daefda69c3011f6c19768dd98e2652ee2a23b8f69
[INFO] running `"docker" "start" "-a" "effb4408f425ad80e9cbb66daefda69c3011f6c19768dd98e2652ee2a23b8f69"`
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]    Compiling llvm-sys v50.0.0
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v50.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/llvm-sys-2956a53b325c277f/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Found LLVM version 3.8.1 on PATH, but need 5.0.0.
[INFO] [stderr] Didn't find usable system-wide LLVM.
[INFO] [stderr] LLVM_SYS_50_PREFIX not set, not using precompiled binaries
[INFO] [stderr] LLVM_SYS_50_AUTOBUILD not set, will not automatically compile LLVM
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Could not find a compatible version of LLVM', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/build.rs:77:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55dcc8198504 - backtrace::backtrace::libunwind::trace::h780d9312b947e32f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55dcc8198504 - backtrace::backtrace::trace_unsynchronized::h50fdb9faa9a37c56
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55dcc8198504 - std::sys_common::backtrace::_print_fmt::h5fd3d374bdc4a419
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x55dcc8198504 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hea77cdef8cfcc21d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x55dcc81b8c3c - core::fmt::write::h4af900d733d7a583
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55dcc81946b7 - std::io::Write::write_fmt::h7ad411185b661d1b
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55dcc819aaf5 - std::sys_common::backtrace::_print::h7743f537860b7fc2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x55dcc819aaf5 - std::sys_common::backtrace::print::h539b95bb1c3082e1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x55dcc819aaf5 - std::panicking::default_hook::{{closure}}::hc6479c8b41ede440
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    9:     0x55dcc819a7e6 - std::panicking::default_hook::hd581ebc9f02a25e1
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]   10:     0x55dcc819b1f5 - std::panicking::rust_panic_with_hook::h3ef8c012e2c61ebc
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x55dcc80dae65 - std::panicking::begin_panic::hef671c576185c72f
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/panicking.rs:411
[INFO] [stderr]   12:     0x55dcc7fed4e0 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h85a2e8060698d7a0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/build.rs:77
[INFO] [stderr]   13:     0x55dcc7fed4e0 - core::ops::function::FnOnce::call_once::hecd477329cb1dbeb
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libcore/ops/function.rs:227
[INFO] [stderr]   14:     0x55dcc7febb63 - lazy_static::lazy::Lazy<T>::get::{{closure}}::h404542857d5487fc
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.8/src/lazy.rs:23
[INFO] [stderr]   15:     0x55dcc7ffa5fb - std::sync::once::Once::call_once::{{closure}}::h49ebcfdabfb3846e
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/sync/once.rs:225
[INFO] [stderr]   16:     0x55dcc8198028 - std::sync::once::Once::call_inner::he5a5b6620725f15b
[INFO] [stderr]                                at src/libstd/sync/once.rs:392
[INFO] [stderr]   17:     0x55dcc7ffa493 - std::sync::once::Once::call_once::h7e4c9c08c9aec4c0
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/sync/once.rs:225
[INFO] [stderr]   18:     0x55dcc7fe9631 - lazy_static::lazy::Lazy<T>::get::h494710c2aab17ef5
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.8/src/lazy.rs:22
[INFO] [stderr]   19:     0x55dcc7fe9631 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h68954ffd211d351b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/<::lazy_static::__lazy_static_internal macros>:27
[INFO] [stderr]   20:     0x55dcc7fe9631 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hc21daa79f7da7d54
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/<::lazy_static::__lazy_static_internal macros>:29
[INFO] [stderr]   21:     0x55dcc7fe731a - build_script_build::llvm_config::h8afdd34bb7a4d91d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/build.rs:164
[INFO] [stderr]   22:     0x55dcc7fe8a23 - build_script_build::main::hee6207ab86dece03
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-50.0.0/build.rs:289
[INFO] [stderr]   23:     0x55dcc7fef510 - std::rt::lang_start::{{closure}}::h1e1ea74c9450991b
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]   24:     0x55dcc819ac23 - std::rt::lang_start_internal::{{closure}}::h89bcd519c19d1c00
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   25:     0x55dcc819ac23 - std::panicking::try::do_call::h9c0ecf24353b2f6f
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   26:     0x55dcc81a2dfa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   27:     0x55dcc819b6ed - std::panicking::try::h2cce617c236f51a9
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   28:     0x55dcc819b6ed - std::panic::catch_unwind::heee61165154957e1
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   29:     0x55dcc819b6ed - std::rt::lang_start_internal::h84ae79bb2f097b77
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   30:     0x55dcc7fef4e9 - std::rt::lang_start::h683528c719335697
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]   31:     0x55dcc7fe967a - main
[INFO] [stderr]   32:     0x7fd0a9a212e1 - __libc_start_main
[INFO] [stderr]   33:     0x55dcc7fe604a - _start
[INFO] [stderr]   34:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "effb4408f425ad80e9cbb66daefda69c3011f6c19768dd98e2652ee2a23b8f69"`
[INFO] running `"docker" "rm" "-f" "effb4408f425ad80e9cbb66daefda69c3011f6c19768dd98e2652ee2a23b8f69"`
[INFO] [stdout] effb4408f425ad80e9cbb66daefda69c3011f6c19768dd98e2652ee2a23b8f69