[INFO] updating cached repository https://github.com/3c1u/bf-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 0fec625f7a447fcc42dc1c4331d270f20efe993f
[INFO] testing 3c1u/bf-rs against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3c1u%2Fbf-rs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/3c1u/bf-rs on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/3c1u/bf-rs
[INFO] finished tweaking git repo https://github.com/3c1u/bf-rs
[INFO] tweaked toml for git repo https://github.com/3c1u/bf-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 255d7bc4db83b7c7feaf76e441c5d0835f30f0bc82f68052335af3b1109ace20
[INFO] running `"docker" "start" "-a" "255d7bc4db83b7c7feaf76e441c5d0835f30f0bc82f68052335af3b1109ace20"`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=llvm8-0#e3995fb9)
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling llvm-sys v80.1.2
[INFO] [stderr]    Compiling inkwell_internals v0.1.0 (https://github.com/TheDan64/inkwell?branch=llvm8-0#e3995fb9)
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v80.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/llvm-sys-796c0cae9d97302b/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_PREFIX
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_IGNORE_BLACKLIST
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_STRICT_VERSIONING
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_NO_CLEAN_CFLAGS
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_USE_DEBUG_MSVCRT
[INFO] [stderr] cargo:rerun-if-env-changed=LLVM_SYS_80_FFI_WORKAROUND
[INFO] [stderr] Found LLVM version 6.0.0 on PATH, but need 8.0.2.
[INFO] [stderr] Didn't find usable system-wide LLVM.
[INFO] [stderr] No suitable version of LLVM was found system-wide or pointed
[INFO] [stderr]                   to by LLVM_SYS_80_PREFIX.
[INFO] [stderr]                   
[INFO] [stderr]                   Consider using `llvmenv` to compile an appropriate copy of LLVM, and
[INFO] [stderr]                   refer to the llvm-sys documentation for more information.
[INFO] [stderr]                   
[INFO] [stderr]                   llvm-sys: https://crates.io/crates/llvm-sys
[INFO] [stderr]                   llvmenv: https://crates.io/crates/llvmenv
[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-80.1.2/build.rs:101:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5577d9aeb344 - backtrace::backtrace::libunwind::trace::hbb4ce8c04526962e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5577d9aeb344 - backtrace::backtrace::trace_unsynchronized::h79251c088e7be038
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5577d9aeb344 - std::sys_common::backtrace::_print_fmt::h6b0ea30a9223acae
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5577d9aeb344 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4d51ef07ce58e54b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5577d9b113fc - core::fmt::write::he16b9c1345d8565e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x5577d9ae7493 - std::io::Write::write_fmt::h35d873b9ce1f02a8
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x5577d9aedc05 - std::sys_common::backtrace::_print::h9288fa7d9f6629cb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5577d9aedc05 - std::sys_common::backtrace::print::h82e606e62781d8af
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5577d9aedc05 - std::panicking::default_hook::{{closure}}::h1fe350ecbf7604e4
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5577d9aed942 - std::panicking::default_hook::h1b8b42953fdc841d
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5577d9aee262 - std::panicking::rust_panic_with_hook::he73826f4bb75a21e
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x5577d9acfd01 - std::panicking::begin_panic::hb1a05da5e35ddd5f
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x5577d9861586 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h4e09e4380a1fb859
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-80.1.2/build.rs:101
[INFO] [stderr]   13:     0x5577d9861586 - core::ops::function::FnOnce::call_once::h9046d99038aaa81b
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libcore/ops/function.rs:232
[INFO] [stderr]   14:     0x5577d985e22b - lazy_static::lazy::Lazy<T>::get::{{closure}}::h10673e754cc58afc
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:31
[INFO] [stderr]   15:     0x5577d9855952 - std::sync::once::Once::call_once::{{closure}}::heade9217bf57a1be
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/sync/once.rs:264
[INFO] [stderr]   16:     0x5577d9aeadd8 - std::sync::once::Once::call_inner::h6a789aa2471e42cc
[INFO] [stderr]                                at src/libstd/sync/once.rs:416
[INFO] [stderr]   17:     0x5577d98552e1 - std::sync::once::Once::call_once::h2e532362c3f75f1a
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/sync/once.rs:264
[INFO] [stderr]   18:     0x5577d98534b5 - lazy_static::lazy::Lazy<T>::get::h32c548f4c2e45952
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:30
[INFO] [stderr]   19:     0x5577d98534b5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h7571235c63c760ff
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:142
[INFO] [stderr]   20:     0x5577d98534b5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hf46cad45ee69f5c9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:144
[INFO] [stderr]   21:     0x5577d98508f4 - build_script_build::llvm_config::h92bea65cd3982b00
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-80.1.2/build.rs:199
[INFO] [stderr]   22:     0x5577d9851c80 - build_script_build::get_llvm_cflags::he3feb1a3efe132dd
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-80.1.2/build.rs:308
[INFO] [stderr]   23:     0x5577d98524f5 - build_script_build::main::hdc33816ff7ca0285
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-80.1.2/build.rs:346
[INFO] [stderr]   24:     0x5577d9858c4b - std::rt::lang_start::{{closure}}::hb127e1254c9c06b3
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x5577d9aee6a8 - std::rt::lang_start_internal::{{closure}}::h985f9ad0467016f1
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   26:     0x5577d9aee6a8 - std::panicking::try::do_call::hbcbbc645883681bb
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   27:     0x5577d9aee6a8 - std::panicking::try::h250f86dc8ee6d054
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   28:     0x5577d9aee6a8 - std::panic::catch_unwind::h58d26ced09bde6c3
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   29:     0x5577d9aee6a8 - std::rt::lang_start_internal::h7de51dd9f16af454
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   30:     0x5577d9858c27 - std::rt::lang_start::hcf4349c65c9e433c
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/rt.rs:67
[INFO] [stderr]   31:     0x5577d985354a - main
[INFO] [stderr]   32:     0x7f5a66110b97 - __libc_start_main
[INFO] [stderr]   33:     0x5577d984f79a - _start
[INFO] [stderr]   34:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "255d7bc4db83b7c7feaf76e441c5d0835f30f0bc82f68052335af3b1109ace20"`
[INFO] running `"docker" "rm" "-f" "255d7bc4db83b7c7feaf76e441c5d0835f30f0bc82f68052335af3b1109ace20"`
[INFO] [stdout] 255d7bc4db83b7c7feaf76e441c5d0835f30f0bc82f68052335af3b1109ace20