[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#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68746
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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-12/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fce4f1e49bac35d3e097313e454540e2de6af53830d58843f74504923e20af53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fce4f1e49bac35d3e097313e454540e2de6af53830d58843f74504923e20af53"`
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling itoa v0.4.3
[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 serde v1.0.80
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling ryu v0.2.6
[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 regex-syntax v0.6.3
[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 semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.32
[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-ecf0746e584cb215/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-8811bd68a3812819/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:     0x559be15a02d3 - backtrace::backtrace::libunwind::trace::heb472bee80c04207
[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::h2a60daa34ce9881c
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x559be159d4e3 - backtrace::capture::Backtrace::new_unresolved::h87926b2ead07c66c
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x559be1358d2b - failure::backtrace::internal::InternalBacktrace::new::h8c3d1d15e9090d00
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x559be135802c - failure::backtrace::Backtrace::new::h1a3c6d4283fbc0ae
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x559be13205ab - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hecd0e9b1c0be5323
[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:     0x559be1352657 - <failure::error::Error as core::convert::From<F>>::from::h9eebbbdeef8a1ca4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x559be13201e5 - failure::error_message::err_msg::ha5f45cc5eff3d8d8
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x559be1322c15 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h710823533ab50869
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x559be1356e88 - core::result::Result<T,E>::map_err::h5c186b3abc102d1c
[INFO] [stderr]                         at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libcore/result.rs:604
[INFO] [stderr]    9:     0x559be1321709 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::hac8d9dba486fe653
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x559be1320798 - build_script_build::llvm::Generator::parse_llvm_sys_crate::he967750d3979461f
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x559be132be31 - build_script_build::main::hc03033dc871b3145
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x559be13502bf - std::rt::lang_start::{{closure}}::hf4eb9f74238fba9b
[INFO] [stderr]                         at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x559be15d2332 - std::rt::lang_start_internal::{{closure}}::h79efcdb1c4a7311a
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::h8837c722d8d26052
[INFO] [stderr]                         at src/libstd/panicking.rs:303
[INFO] [stderr]   14:     0x559be15d8d16 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   15:     0x559be15d2de8 - std::panicking::try::h6df407c9e373308b
[INFO] [stderr]                         at src/libstd/panicking.rs:281
[INFO] [stderr]                          - std::panic::catch_unwind::hb93a3e23c13dcc76
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h0eeb85a0fe3bba7b
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x559be1350298 - std::rt::lang_start::hd4fade95b2be4372
[INFO] [stderr]                         at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x559be132c099 - main
[INFO] [stderr]   18:     0x7f4fe9d04b96 - __libc_start_main
[INFO] [stderr]   19:     0x559be1308219 - _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:     0x559be15cfaf8 - backtrace::backtrace::libunwind::trace::hdec022fb119dd06d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x559be15cfaf8 - backtrace::backtrace::trace_unsynchronized::h1f309365306cc260
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x559be15cfaf8 - std::sys_common::backtrace::_print_fmt::hedd348b4f893987a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x559be15cfaf8 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h381b96a3f9ce8032
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x559be15f27dc - core::fmt::write::he5b6a663f8bc9f46
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x559be15cca77 - std::io::Write::write_fmt::h39edd6a910b76376
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x559be15d2215 - std::sys_common::backtrace::_print::hecbfa51643b1d1b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x559be15d2215 - std::sys_common::backtrace::print::he854cdfad1b40844
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x559be15d2215 - std::panicking::default_hook::{{closure}}::h590c45dbd8599059
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x559be15d1f56 - std::panicking::default_hook::h6b14cee906df5ae9
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x559be15d2872 - std::panicking::rust_panic_with_hook::h845de504d308e21c
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x559be15d245b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x559be15f1011 - core::panicking::panic_fmt::hc919459cc61f60e0
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x559be15f0e33 - core::option::expect_none_failed::hcec7632dbb4bd9b0
[INFO] [stderr]                                at src/libcore/option.rs:1199
[INFO] [stderr]   14:     0x559be13568c3 - core::result::Result<T,E>::expect::h67656acd4cf2f546
[INFO] [stderr]                                at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libcore/result.rs:991
[INFO] [stderr]   15:     0x559be132be5c - build_script_build::main::hc03033dc871b3145
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x559be13502c0 - std::rt::lang_start::{{closure}}::hf4eb9f74238fba9b
[INFO] [stderr]                                at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x559be15d2333 - std::rt::lang_start_internal::{{closure}}::h79efcdb1c4a7311a
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x559be15d2333 - std::panicking::try::do_call::h8837c722d8d26052
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   19:     0x559be15d8d17 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   20:     0x559be15d2de9 - std::panicking::try::h6df407c9e373308b
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   21:     0x559be15d2de9 - std::panic::catch_unwind::hb93a3e23c13dcc76
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x559be15d2de9 - std::rt::lang_start_internal::h0eeb85a0fe3bba7b
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x559be1350299 - std::rt::lang_start::hd4fade95b2be4372
[INFO] [stderr]                                at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x559be132c09a - main
[INFO] [stderr]   25:     0x7f4fe9d04b97 - __libc_start_main
[INFO] [stderr]   26:     0x559be130821a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "fce4f1e49bac35d3e097313e454540e2de6af53830d58843f74504923e20af53"`
[INFO] running `"docker" "rm" "-f" "fce4f1e49bac35d3e097313e454540e2de6af53830d58843f74504923e20af53"`
[INFO] [stdout] fce4f1e49bac35d3e097313e454540e2de6af53830d58843f74504923e20af53