[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#be493fe8cc40c3d3f6030a1313c1ff747fce770d for pr-69129
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain be493fe8cc40c3d3f6030a1313c1ff747fce770d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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-0/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" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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] 60be4f0b13290f074ee9507a96980592998c0b760633fe4f822a75a1f2212de5
[INFO] running `"docker" "start" "-a" "60be4f0b13290f074ee9507a96980592998c0b760633fe4f822a75a1f2212de5"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[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 semver v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking libloading v0.5.0
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling serde_json v1.0.32
[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 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-4c91f0f8df6c0498/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-fd02753947be1970/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:     0x557f73eaa173 - backtrace::backtrace::libunwind::trace::hed56ebea5681de1a
[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::h62ae3244601467ca
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x557f73ea75a3 - backtrace::capture::Backtrace::new_unresolved::hb0683765975bee6d
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x557f73c6d2cd - failure::backtrace::internal::InternalBacktrace::new::h7eac49d298db5f33
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x557f73c6c0fc - failure::backtrace::Backtrace::new::hfcce9ee16394bbb4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x557f73c37a9b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h1fe8cdbeb53a03b9
[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:     0x557f73c66bc7 - <failure::error::Error as core::convert::From<F>>::from::h3c70a56c38ed1beb
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x557f73c378d5 - failure::error_message::err_msg::h7765e421043b37a0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x557f73c3a2c5 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h8c6745e50a4ae7a5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x557f73c6b475 - core::result::Result<T,E>::map_err::h8f012552042b0c14
[INFO] [stderr]                         at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libcore/result.rs:610
[INFO] [stderr]    9:     0x557f73c38dd9 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h5e4a3b95c7434dc2
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x557f73c37e78 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hcd3dc1754edcbddb
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x557f73c4089c - build_script_build::main::he6446359eab141f5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x557f73c6477a - std::rt::lang_start::{{closure}}::h4c0c45e2417752e0
[INFO] [stderr]                         at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x557f73edb742 - std::rt::lang_start_internal::{{closure}}::hc91014860c894262
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::hb7281b56bbedf5f6
[INFO] [stderr]                         at src/libstd/panicking.rs:303
[INFO] [stderr]   14:     0x557f73ee2156 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   15:     0x557f73edc1f8 - std::panicking::try::he2ddd46f7d421fa4
[INFO] [stderr]                         at src/libstd/panicking.rs:281
[INFO] [stderr]                          - std::panic::catch_unwind::h96529f74bbd30954
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h66b23d61651d06fd
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x557f73c64756 - std::rt::lang_start::h164ab8e1d70e76be
[INFO] [stderr]                         at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x557f73c40af9 - main
[INFO] [stderr]   18:     0x7fa1b7de5b96 - __libc_start_main
[INFO] [stderr]   19:     0x557f73c1d939 - _start
[INFO] [stderr]   20:                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:     0x557f73ed8ee4 - backtrace::backtrace::libunwind::trace::h85814ed5761b405b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x557f73ed8ee4 - backtrace::backtrace::trace_unsynchronized::h7e14b55873159a50
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x557f73ed8ee4 - std::sys_common::backtrace::_print_fmt::h06984e0f03402a64
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x557f73ed8ee4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h54c9889fb992fb45
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x557f73efbb7c - core::fmt::write::h07730eab2db38382
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x557f73ed5dd7 - std::io::Write::write_fmt::hbed464fdb7564829
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x557f73edb625 - std::sys_common::backtrace::_print::h809bdb75f2567ffd
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x557f73edb625 - std::sys_common::backtrace::print::hd24101ae6893de76
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x557f73edb625 - std::panicking::default_hook::{{closure}}::hb2df444c384c9d7c
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x557f73edb366 - std::panicking::default_hook::hee61a28e9920f483
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x557f73edbc82 - std::panicking::rust_panic_with_hook::h4b802d420faaf7c4
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x557f73edb86b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x557f73efa411 - core::panicking::panic_fmt::h14dd4a2469d1f31f
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x557f73efa233 - core::option::expect_none_failed::h533d3ff7c182d86b
[INFO] [stderr]                                at src/libcore/option.rs:1211
[INFO] [stderr]   14:     0x557f73c6ad0e - core::result::Result<T,E>::expect::h308b7c302cea1441
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libcore/result.rs:961
[INFO] [stderr]   15:     0x557f73c408c7 - build_script_build::main::he6446359eab141f5
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x557f73c6477b - std::rt::lang_start::{{closure}}::h4c0c45e2417752e0
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x557f73edb743 - std::rt::lang_start_internal::{{closure}}::hc91014860c894262
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x557f73edb743 - std::panicking::try::do_call::hb7281b56bbedf5f6
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   19:     0x557f73ee2157 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   20:     0x557f73edc1f9 - std::panicking::try::he2ddd46f7d421fa4
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   21:     0x557f73edc1f9 - std::panic::catch_unwind::h96529f74bbd30954
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x557f73edc1f9 - std::rt::lang_start_internal::h66b23d61651d06fd
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x557f73c64757 - std::rt::lang_start::h164ab8e1d70e76be
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x557f73c40afa - main
[INFO] [stderr]   25:     0x7fa1b7de5b97 - __libc_start_main
[INFO] [stderr]   26:     0x557f73c1d93a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "60be4f0b13290f074ee9507a96980592998c0b760633fe4f822a75a1f2212de5"`
[INFO] running `"docker" "rm" "-f" "60be4f0b13290f074ee9507a96980592998c0b760633fe4f822a75a1f2212de5"`
[INFO] [stdout] 60be4f0b13290f074ee9507a96980592998c0b760633fe4f822a75a1f2212de5