[INFO] cloning repository https://github.com/rchaser53/rust-monkey-ir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rchaser53/rust-monkey-ir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 202bcb9fae0dfa8cc6357c067e8fa399b76172e8
[INFO] checking rchaser53/rust-monkey-ir against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-3/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25a778f4bbac014ec2d4b23d9548b8b651fec67dd67ae3bba11bd5a2ae12a48d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "25a778f4bbac014ec2d4b23d9548b8b651fec67dd67ae3bba11bd5a2ae12a48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25a778f4bbac014ec2d4b23d9548b8b651fec67dd67ae3bba11bd5a2ae12a48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a778f4bbac014ec2d4b23d9548b8b651fec67dd67ae3bba11bd5a2ae12a48d", kill_on_drop: false }`
[INFO] [stdout] 25a778f4bbac014ec2d4b23d9548b8b651fec67dd67ae3bba11bd5a2ae12a48d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e881e6b023aa60b0fb61b0a19508ef3eba79bd75f80878e5bb86507029cfb6e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e881e6b023aa60b0fb61b0a19508ef3eba79bd75f80878e5bb86507029cfb6e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex v1.0.6
[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 failure_derive v0.1.3
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[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 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-df214628b43a0057/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-16dbc1b9c9fa974f/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:     0x55611ac13333 - backtrace::backtrace::libunwind::trace::hd99f2f692b704bf9
[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::h657d39e0469ff36d
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]      1:     0x55611ac0d7e3 - backtrace::capture::Backtrace::new_unresolved::hc38668a663201d50
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]      2:     0x55611aa2a455 - failure::backtrace::internal::InternalBacktrace::new::he67fbd2b19984bde
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]      3:     0x55611aa2922c - failure::backtrace::Backtrace::new::hf41890271c578abd
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]      4:     0x55611aa224bb - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hc6c6770f89504243
[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:     0x55611a9fd077 - <failure::error::Error as core::convert::From<F>>::from::h8d9d2b94087bbc76
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]      6:     0x55611aa28975 - failure::error_message::err_msg::h0d8491ed452b4652
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]      7:     0x55611a9f9735 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h4214c904bc98431e
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]      8:     0x55611a9fc02c - core::result::Result<T,E>::map_err::h1a83fca2b7695613
[INFO] [stderr]                           at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libcore/result.rs:612
[INFO] [stderr]      9:     0x55611a9f8409 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h9557812baa88565b
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]     10:     0x55611a9f7708 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hd288281c53885c1c
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]     11:     0x55611aa23d2c - build_script_build::main::hdff2cee70c23d87f
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     12:     0x55611a9fbaba - std::rt::lang_start::{{closure}}::h040fe2b4639d4ccc
[INFO] [stderr]                           at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libstd/rt.rs:67
[INFO] [stderr]     13:     0x55611ac40e72 - std::rt::lang_start_internal::{{closure}}::h6d7ca43fc52cff4a
[INFO] [stderr]                           at src/libstd/rt.rs:52
[INFO] [stderr]                            - std::panicking::try::do_call::h89610ba8f4fbfe54
[INFO] [stderr]                           at src/libstd/panicking.rs:348
[INFO] [stderr]                            - std::panicking::try::h69595087e4498dc2
[INFO] [stderr]                           at src/libstd/panicking.rs:325
[INFO] [stderr]                            - std::panic::catch_unwind::ha2aa2ebd78a46e0d
[INFO] [stderr]                           at src/libstd/panic.rs:394
[INFO] [stderr]                            - std::rt::lang_start_internal::h2ae59503bb8c048c
[INFO] [stderr]                           at src/libstd/rt.rs:51
[INFO] [stderr]     14:     0x55611a9fba96 - std::rt::lang_start::h697c00fa17b471e6
[INFO] [stderr]                           at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libstd/rt.rs:67
[INFO] [stderr]     15:     0x55611aa23f89 - main
[INFO] [stderr]     16:     0x7f7c5a4cb0b2 - __libc_start_main
[INFO] [stderr]     17:     0x55611a9e41ad - _start
[INFO] [stderr]     18:                0x0 - <unknown>', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:20:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55611ac3dce5 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x55611ac3dce5 - backtrace::backtrace::trace_unsynchronized::hc29c6e6df26d44d7
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55611ac3dce5 - std::sys_common::backtrace::_print_fmt::h4c9f4993b039bd03
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x55611ac3dce5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h91f5cfffa0da5a7a
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x55611ac648ec - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x55611ac3ad22 - std::io::Write::write_fmt::h5e28da8ce574bfe8
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x55611ac40390 - std::sys_common::backtrace::_print::h0ceef71d03fb70bc
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x55611ac40390 - std::sys_common::backtrace::print::h1bacb65357a70fca
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x55611ac40390 - std::panicking::default_hook::{{closure}}::h249639eade443064
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x55611ac400dc - std::panicking::default_hook::hbe64ddeb621910df
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x55611ac409d3 - std::panicking::rust_panic_with_hook::h16376479909ace6a
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x55611ac405cb - rust_begin_unwind
[INFO] [stderr]                                  at src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x55611ac63281 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                  at src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x55611ac630a3 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                  at src/libcore/option.rs:1269
[INFO] [stderr]     14:     0x55611a9fbcbf - core::result::Result<T,E>::expect::h6f2e9d9892822fce
[INFO] [stderr]                                  at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libcore/result.rs:963
[INFO] [stderr]     15:     0x55611aa23d57 - build_script_build::main::hdff2cee70c23d87f
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     16:     0x55611a9fbabb - std::rt::lang_start::{{closure}}::h040fe2b4639d4ccc
[INFO] [stderr]                                  at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libstd/rt.rs:67
[INFO] [stderr]     17:     0x55611ac40e73 - std::rt::lang_start_internal::{{closure}}::h6d7ca43fc52cff4a
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     18:     0x55611ac40e73 - std::panicking::try::do_call::h89610ba8f4fbfe54
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     19:     0x55611ac40e73 - std::panicking::try::h69595087e4498dc2
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     20:     0x55611ac40e73 - std::panic::catch_unwind::ha2aa2ebd78a46e0d
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     21:     0x55611ac40e73 - std::rt::lang_start_internal::h2ae59503bb8c048c
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     22:     0x55611a9fba97 - std::rt::lang_start::h697c00fa17b471e6
[INFO] [stderr]                                  at /rustc/c724b67e1b474262917a5154d74e7072267593fe/src/libstd/rt.rs:67
[INFO] [stderr]     23:     0x55611aa23f8a - main
[INFO] [stderr]     24:     0x7f7c5a4cb0b3 - __libc_start_main
[INFO] [stderr]     25:     0x55611a9e41ae - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "e881e6b023aa60b0fb61b0a19508ef3eba79bd75f80878e5bb86507029cfb6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e881e6b023aa60b0fb61b0a19508ef3eba79bd75f80878e5bb86507029cfb6e3", kill_on_drop: false }`
[INFO] [stdout] e881e6b023aa60b0fb61b0a19508ef3eba79bd75f80878e5bb86507029cfb6e3