[INFO] updating cached repository https://github.com/rchaser53/rust-monkey-ir
[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] 202bcb9fae0dfa8cc6357c067e8fa399b76172e8
[INFO] checking rchaser53/rust-monkey-ir against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rchaser53/rust-monkey-ir
[INFO] finished tweaking git repo https://github.com/rchaser53/rust-monkey-ir
[INFO] tweaked toml for git repo https://github.com/rchaser53/rust-monkey-ir written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rchaser53/rust-monkey-ir already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39b3fbb8683fb23bbef4cf369a93414fbabdd4afcd79a5779a56d19220df7d3a
[INFO] running `"docker" "start" "-a" "39b3fbb8683fb23bbef4cf369a93414fbabdd4afcd79a5779a56d19220df7d3a"`
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling llvm-sys v70.0.1
[INFO] [stderr]    Compiling synstructure v0.10.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling cargo_metadata v0.6.1
[INFO] [stderr]    Compiling rustc-llvm-proxy v0.1.5
[INFO] [stderr] error: failed to run custom build command for `rustc-llvm-proxy v0.1.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc-llvm-proxy-fa74bcbe6f4040bc/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=build.rs
[INFO] [stderr] cargo:rerun-if-changed=/opt/rustwide/target/debug/build/rustc-llvm-proxy-c6dbb73343e91b7f/out/llvm_gen.rs
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Unable to parse 'llvm-sys' crate: ErrorMessage { msg: "Unable to get crate metadata" }
[INFO] [stderr] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55d2376e3b33 - backtrace::backtrace::libunwind::trace::h566440621bf1b4d0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/libunwind.rs:53
[INFO] [stderr]                          - backtrace::backtrace::trace::h7e82d12f95c8c261
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x55d2376dfdc3 - backtrace::capture::Backtrace::new_unresolved::hfaac09745a772b04
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x55d2374d3abd - failure::backtrace::internal::InternalBacktrace::new::h9b4b3e681c8df7da
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x55d2374d277c - failure::backtrace::Backtrace::new::hdf456c8b9dd5bbf1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x55d23749c34b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h4ba847934d3aacab
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/error_impl.rs:19
[INFO] [stderr]    5:     0x55d2374a9d87 - <failure::error::Error as core::convert::From<F>>::from::hdd7c53f1a96c401f
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x55d2374a74c5 - failure::error_message::err_msg::hb39a734ed15d47c4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x55d2374a2e85 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h98273972d7cbea2c
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x55d2374c8aac - core::result::Result<T,E>::map_err::h1e351da3eccfcdeb
[INFO] [stderr]                         at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libcore/result.rs:612
[INFO] [stderr]    9:     0x55d2374a1b59 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::hb8a48411f01c18e1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x55d2374a0e38 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h46f2aacc10f70cd9
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x55d23749c80c - build_script_build::main::h838e2eaf67199850
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x55d2374a805a - std::rt::lang_start::{{closure}}::he0b25442ac49412b
[INFO] [stderr]                         at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x55d237715807 - std::rt::lang_start_internal::{{closure}}::hc6afa970c742b02f
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::h1c002a9a857ea77b
[INFO] [stderr]                         at src/libstd/panicking.rs:331
[INFO] [stderr]                          - std::panicking::try::hccaa00db5e9f336f
[INFO] [stderr]                         at src/libstd/panicking.rs:274
[INFO] [stderr]                          - std::panic::catch_unwind::h3fae1eafc1fa8e97
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::hfc8f39fad1a9db56
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   14:     0x55d2374a8036 - std::rt::lang_start::h7133733b78b76d5a
[INFO] [stderr]                         at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x55d23749ca69 - main
[INFO] [stderr]   16:     0x7f959dcd9b96 - __libc_start_main
[INFO] [stderr]   17:     0x55d237486c59 - _start
[INFO] [stderr]   18:                0x0 - <unknown>', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55d237712464 - backtrace::backtrace::libunwind::trace::ha1e5a41b7d3ba0cf
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55d237712464 - backtrace::backtrace::trace_unsynchronized::hf18b8c2f3ff8383d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55d237712464 - std::sys_common::backtrace::_print_fmt::hedecd22228c490e0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55d237712464 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h340395315789722a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55d23773a02c - core::fmt::write::h0facfeb5ca58bc9e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x55d23770f6a3 - std::io::Write::write_fmt::h497f72bb257eb6ad
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x55d237714c95 - std::sys_common::backtrace::_print::h6eaeb972ca7f43b9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55d237714c95 - std::sys_common::backtrace::print::h263d3fc63b334d91
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55d237714c95 - std::panicking::default_hook::{{closure}}::h64185686d42f14f7
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55d2377149d2 - std::panicking::default_hook::h8d87bde850f1425e
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x55d2377152f2 - std::panicking::rust_panic_with_hook::h066ce8fe1fd73277
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x55d237714edb - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x55d237738a51 - core::panicking::panic_fmt::h8cf5d83db03cfc35
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x55d237738873 - core::option::expect_none_failed::h008dc3b23dbfb91c
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x55d2374c8610 - core::result::Result<T,E>::expect::h9f6b4e29159ec2e4
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x55d23749c837 - build_script_build::main::h838e2eaf67199850
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x55d2374a805b - std::rt::lang_start::{{closure}}::he0b25442ac49412b
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55d237715808 - std::rt::lang_start_internal::{{closure}}::hc6afa970c742b02f
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55d237715808 - std::panicking::try::do_call::h1c002a9a857ea77b
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x55d237715808 - std::panicking::try::hccaa00db5e9f336f
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x55d237715808 - std::panic::catch_unwind::h3fae1eafc1fa8e97
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x55d237715808 - std::rt::lang_start_internal::hfc8f39fad1a9db56
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x55d2374a8037 - std::rt::lang_start::h7133733b78b76d5a
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x55d23749ca6a - main
[INFO] [stderr]   24:     0x7f959dcd9b97 - __libc_start_main
[INFO] [stderr]   25:     0x55d237486c5a - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "39b3fbb8683fb23bbef4cf369a93414fbabdd4afcd79a5779a56d19220df7d3a"`
[INFO] running `"docker" "rm" "-f" "39b3fbb8683fb23bbef4cf369a93414fbabdd4afcd79a5779a56d19220df7d3a"`
[INFO] [stdout] 39b3fbb8683fb23bbef4cf369a93414fbabdd4afcd79a5779a56d19220df7d3a