[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#212aa3ea28d91a97d1e1261709c0b6e6790788e6 for pr-69340
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-3/source"`
[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 212aa3ea28d91a97d1e1261709c0b6e6790788e6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "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-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 `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "/opt/rustwide/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "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] 321f0257a637707c974abcc5e0ea2a0837b9ceff4ba5c72faa81f3b7780bb22b
[INFO] running `"docker" "start" "-a" "321f0257a637707c974abcc5e0ea2a0837b9ceff4ba5c72faa81f3b7780bb22b"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[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 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-ff3fce5697cf6750/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-852087abb67a92c1/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:     0x55ad2fa76253 - backtrace::backtrace::libunwind::trace::he540b9db44a8a991
[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::h328cf2eed7f2af14
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x55ad2fa736a3 - backtrace::capture::Backtrace::new_unresolved::hc0081c52a31af600
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x55ad2f83935d - failure::backtrace::internal::InternalBacktrace::new::heb64089d8dd12faa
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x55ad2f83818c - failure::backtrace::Backtrace::new::h9ce38f2fff515ac0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x55ad2f8011fb - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h5b54db71922cb37f
[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:     0x55ad2f832c57 - <failure::error::Error as core::convert::From<F>>::from::h5abf7b9d193d7f48
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x55ad2f80a515 - failure::error_message::err_msg::hbdfc5df440114db5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x55ad2f803a25 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::hecd9d5765edb62af
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x55ad2f837755 - core::result::Result<T,E>::map_err::hb5479e83f1717632
[INFO] [stderr]                         at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libcore/result.rs:610
[INFO] [stderr]    9:     0x55ad2f802539 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h4956385466dbacea
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x55ad2f8015d8 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hb20cf995d9e10ced
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x55ad2f80a7ac - build_script_build::main::h6215e7e8ca086404
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x55ad2f83080a - std::rt::lang_start::{{closure}}::ha9be864486562d54
[INFO] [stderr]                         at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x55ad2faa78f2 - std::rt::lang_start_internal::{{closure}}::h5734d12debc7ef02
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::ha59ccfbb0233cd67
[INFO] [stderr]                         at src/libstd/panicking.rs:303
[INFO] [stderr]   14:     0x55ad2faae306 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   15:     0x55ad2faa83a8 - std::panicking::try::hb1f8b5942fedc28f
[INFO] [stderr]                         at src/libstd/panicking.rs:281
[INFO] [stderr]                          - std::panic::catch_unwind::h3cfbd670c04cfa0a
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h86b43da953c7be5a
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x55ad2f8307e6 - std::rt::lang_start::he9655f08e2cc6c0f
[INFO] [stderr]                         at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55ad2f80aa09 - main
[INFO] [stderr]   18:     0x7f89f0c84b96 - __libc_start_main
[INFO] [stderr]   19:     0x55ad2f7e9919 - _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:     0x55ad2faa5094 - backtrace::backtrace::libunwind::trace::h2f6ff4a33b1e15bd
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55ad2faa5094 - backtrace::backtrace::trace_unsynchronized::h1c74f218935a964e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55ad2faa5094 - std::sys_common::backtrace::_print_fmt::he616a2ffb42d7095
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55ad2faa5094 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3630928d424e5705
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55ad2fac7d2c - core::fmt::write::h51cecfc4364da7ce
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x55ad2faa1f87 - std::io::Write::write_fmt::hc4f750c57e05a637
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55ad2faa77d5 - std::sys_common::backtrace::_print::hf5f697e6be8faefc
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55ad2faa77d5 - std::sys_common::backtrace::print::h82e92953d052a9e7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55ad2faa77d5 - std::panicking::default_hook::{{closure}}::hc7dd9b0d16882bee
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55ad2faa7516 - std::panicking::default_hook::h36e2db9fb0f86871
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55ad2faa7e32 - std::panicking::rust_panic_with_hook::h68e7a51e63e4fdd1
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55ad2faa7a1b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x55ad2fac65c1 - core::panicking::panic_fmt::hdec8bb9799ee149c
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x55ad2fac63e3 - core::option::expect_none_failed::h21127c685c77a023
[INFO] [stderr]                                at src/libcore/option.rs:1211
[INFO] [stderr]   14:     0x55ad2f836d9e - core::result::Result<T,E>::expect::h8e6b49b0717a8b34
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libcore/result.rs:961
[INFO] [stderr]   15:     0x55ad2f80a7d7 - build_script_build::main::h6215e7e8ca086404
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x55ad2f83080b - std::rt::lang_start::{{closure}}::ha9be864486562d54
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55ad2faa78f3 - std::rt::lang_start_internal::{{closure}}::h5734d12debc7ef02
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55ad2faa78f3 - std::panicking::try::do_call::ha59ccfbb0233cd67
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   19:     0x55ad2faae307 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   20:     0x55ad2faa83a9 - std::panicking::try::hb1f8b5942fedc28f
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   21:     0x55ad2faa83a9 - std::panic::catch_unwind::h3cfbd670c04cfa0a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x55ad2faa83a9 - std::rt::lang_start_internal::h86b43da953c7be5a
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x55ad2f8307e7 - std::rt::lang_start::he9655f08e2cc6c0f
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x55ad2f80aa0a - main
[INFO] [stderr]   25:     0x7f89f0c84b97 - __libc_start_main
[INFO] [stderr]   26:     0x55ad2f7e991a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "321f0257a637707c974abcc5e0ea2a0837b9ceff4ba5c72faa81f3b7780bb22b"`
[INFO] running `"docker" "rm" "-f" "321f0257a637707c974abcc5e0ea2a0837b9ceff4ba5c72faa81f3b7780bb22b"`
[INFO] [stdout] 321f0257a637707c974abcc5e0ea2a0837b9ceff4ba5c72faa81f3b7780bb22b