[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#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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-5/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] c759269091d4f33bb9e8007980d7de0a7116dbb2902de243b118a96ded37282d
[INFO] running `"docker" "start" "-a" "c759269091d4f33bb9e8007980d7de0a7116dbb2902de243b118a96ded37282d"`
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling synstructure v0.10.0
[INFO] [stderr]    Compiling llvm-sys v70.0.1
[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-138e0f3de0353aad/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-ed8079b5684e5091/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:     0x563aedeac6c3 - backtrace::backtrace::libunwind::trace::h87e2e3e6f9e2e8a8
[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::hce8d198cc7c2c11e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x563aede9df43 - backtrace::capture::Backtrace::new_unresolved::he74d4d1fc7719a7c
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x563aedc462ab - failure::backtrace::internal::InternalBacktrace::new::h9870b25eead450dc
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x563aedc45d7c - failure::backtrace::Backtrace::new::h1733ff2e341417fe
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x563aedc1121b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h36eff0c9b9ae4491
[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:     0x563aedc125b7 - <failure::error::Error as core::convert::From<F>>::from::h8ede139a61c00efb
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x563aedc133b5 - failure::error_message::err_msg::h5db4bd810ee78d5a
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x563aedc15868 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::hcb235b90921f6434
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x563aedc45028 - core::result::Result<T,E>::map_err::h074102624a805bd2
[INFO] [stderr]                         at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libcore/result.rs:574
[INFO] [stderr]    9:     0x563aedc14489 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h06c7f70dd417778f
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x563aedc13548 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h9100c189b874f665
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x563aedc18401 - build_script_build::main::h0813bb389225fdf3
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x563aedc406df - std::rt::lang_start::{{closure}}::h24f8e2ad93ce59ef
[INFO] [stderr]                         at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x563aeded5c92 - std::rt::lang_start_internal::{{closure}}::h9d98976b820605e6
[INFO] [stderr]                         at src/libstd/rt.rs:49
[INFO] [stderr]                          - std::panicking::try::do_call::heb5bc60e15dbcb52
[INFO] [stderr]                         at src/libstd/panicking.rs:292
[INFO] [stderr]   14:     0x563aededc239 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x563aeded681c - std::panicking::try::hf9b0b6a7905c4995
[INFO] [stderr]                         at src/libstd/panicking.rs:271
[INFO] [stderr]                          - std::panic::catch_unwind::h4f7be31483141e83
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h3053de7339f9193e
[INFO] [stderr]                         at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x563aedc406b8 - std::rt::lang_start::h1346cd5d1e4627f0
[INFO] [stderr]                         at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x563aedc18629 - main
[INFO] [stderr]   18:     0x7f14a033bb96 - __libc_start_main
[INFO] [stderr]   19:     0x563aedbeaaf9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x563aeded3554 - backtrace::backtrace::libunwind::trace::h836120cb2cfba712
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563aeded3554 - backtrace::backtrace::trace_unsynchronized::h363db4af51bde585
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563aeded3554 - std::sys_common::backtrace::_print_fmt::h33a80c84a606d44e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x563aeded3554 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc3acf58b6df6127f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x563aedef5d5c - core::fmt::write::hdef7f8cce8f6a662
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1028
[INFO] [stderr]    5:     0x563aeded07c7 - std::io::Write::write_fmt::h42f193674aa0004e
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x563aeded5b65 - std::sys_common::backtrace::_print::h5da26908d886b2c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x563aeded5b65 - std::sys_common::backtrace::print::h8a6f66fe88800872
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x563aeded5b65 - std::panicking::default_hook::{{closure}}::h2eebe3935948e7ad
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x563aeded5856 - std::panicking::default_hook::h6b14b1c7e8865653
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x563aeded6265 - std::panicking::rust_panic_with_hook::h41b9717c69a7f473
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x563aeded5e02 - std::panicking::continue_panic_fmt::ha3ba417ec3a5f012
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x563aeded5cf6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x563aedef2aba - core::panicking::panic_fmt::hd262c4ca2914505b
[INFO] [stderr]                                at src/libcore/panicking.rs:84
[INFO] [stderr]   14:     0x563aedef2bb7 - core::result::unwrap_failed::h42e843d3f65805bc
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x563aedc44b60 - core::result::Result<T,E>::expect::h3ee558fa6bc8307c
[INFO] [stderr]                                at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libcore/result.rs:960
[INFO] [stderr]   16:     0x563aedc18425 - build_script_build::main::h0813bb389225fdf3
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   17:     0x563aedc406e0 - std::rt::lang_start::{{closure}}::h24f8e2ad93ce59ef
[INFO] [stderr]                                at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x563aeded5c93 - std::rt::lang_start_internal::{{closure}}::h9d98976b820605e6
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   19:     0x563aeded5c93 - std::panicking::try::do_call::heb5bc60e15dbcb52
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   20:     0x563aededc23a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   21:     0x563aeded681d - std::panicking::try::hf9b0b6a7905c4995
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   22:     0x563aeded681d - std::panic::catch_unwind::h4f7be31483141e83
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x563aeded681d - std::rt::lang_start_internal::h3053de7339f9193e
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   24:     0x563aedc406b9 - std::rt::lang_start::h1346cd5d1e4627f0
[INFO] [stderr]                                at /rustc/b61e69433951e31f7bd746e22f516a48ad41623b/src/libstd/rt.rs:64
[INFO] [stderr]   25:     0x563aedc1862a - main
[INFO] [stderr]   26:     0x7f14a033bb97 - __libc_start_main
[INFO] [stderr]   27:     0x563aedbeaafa - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "c759269091d4f33bb9e8007980d7de0a7116dbb2902de243b118a96ded37282d"`
[INFO] running `"docker" "rm" "-f" "c759269091d4f33bb9e8007980d7de0a7116dbb2902de243b118a96ded37282d"`
[INFO] [stdout] c759269091d4f33bb9e8007980d7de0a7116dbb2902de243b118a96ded37282d