[INFO] updating cached repository https://github.com/rchaser53/rust-monkey-ir
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "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 work/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 `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 55b4b38263dddcc81f6339cfa59c8f2b1e1cb311c5a239c29645b77a0e3e4acd
[INFO] running `"docker" "start" "-a" "55b4b38263dddcc81f6339cfa59c8f2b1e1cb311c5a239c29645b77a0e3e4acd"`
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling error-chain v0.12.0
[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 serde_derive v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[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-6835a886b527d46f/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-a6cc1125d07e0822/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:     0x55fa02076633 - backtrace::backtrace::libunwind::trace::h1a6880c846a63f50
[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::he5853352f03e12c4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x55fa02067eb3 - backtrace::capture::Backtrace::new_unresolved::h10afc107d0f43288
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x55fa01e1033b - failure::backtrace::internal::InternalBacktrace::new::h960b7f4bcb524d8a
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x55fa01e0fe6c - failure::backtrace::Backtrace::new::h865a3a845ebad2a0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x55fa01ddb49b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h127c10ac01ecb7fa
[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:     0x55fa01ddc5f7 - <failure::error::Error as core::convert::From<F>>::from::hcae965be891769a1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x55fa01ddd445 - failure::error_message::err_msg::h252a5dabf6526dd1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x55fa01ddf8f8 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::he3403b82f2f94f97
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x55fa01e0f708 - core::result::Result<T,E>::map_err::ha663995cd1bcc8cf
[INFO] [stderr]                         at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libcore/result.rs:574
[INFO] [stderr]    9:     0x55fa01dde519 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h0afbbac4844921ea
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x55fa01ddd5d8 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hbd769595437a86df
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x55fa01de2491 - build_script_build::main::hbd0742c0f8192a4b
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x55fa01e0a76f - std::rt::lang_start::{{closure}}::h8a0b7090b1a6b075
[INFO] [stderr]                         at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x55fa0209fc02 - std::rt::lang_start_internal::{{closure}}::hcbc0d39047dfb53e
[INFO] [stderr]                         at src/libstd/rt.rs:49
[INFO] [stderr]                          - std::panicking::try::do_call::h8b5ef32d822a8d8f
[INFO] [stderr]                         at src/libstd/panicking.rs:292
[INFO] [stderr]   14:     0x55fa020a61a9 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x55fa020a078c - std::panicking::try::h9b6fb4e6a40ce0cb
[INFO] [stderr]                         at src/libstd/panicking.rs:271
[INFO] [stderr]                          - std::panic::catch_unwind::h2fbf9b8ead8e504a
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::hb6581c1f21bf501d
[INFO] [stderr]                         at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x55fa01e0a748 - std::rt::lang_start::h0b7bd0f0e73e47fb
[INFO] [stderr]                         at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x55fa01de26b9 - main
[INFO] [stderr]   18:     0x7f8139dfbb96 - __libc_start_main
[INFO] [stderr]   19:     0x55fa01db4be9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55fa0209d4c4 - backtrace::backtrace::libunwind::trace::h837858cfeddf7a26
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55fa0209d4c4 - backtrace::backtrace::trace_unsynchronized::hf450b231b66758d5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55fa0209d4c4 - std::sys_common::backtrace::_print_fmt::h368e3c833d23dd1d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x55fa0209d4c4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h99a560994a9a8770
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x55fa020bfccc - core::fmt::write::h331a8aee5b7f3512
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55fa0209a737 - std::io::Write::write_fmt::hf05660e3e7df1eca
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55fa0209fad5 - std::sys_common::backtrace::_print::h2a131efc4c0ac3fa
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x55fa0209fad5 - std::sys_common::backtrace::print::h983d88dd719c12ff
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55fa0209fad5 - std::panicking::default_hook::{{closure}}::h663d5da304a5132f
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x55fa0209f7c6 - std::panicking::default_hook::hf37841c3986e6801
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55fa020a01d5 - std::panicking::rust_panic_with_hook::hb2227d83b88686af
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55fa0209fd72 - std::panicking::continue_panic_fmt::h8dcb675c0adec47c
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x55fa0209fc66 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x55fa020bca2a - core::panicking::panic_fmt::h34237ab75d721bef
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x55fa020bcb27 - core::result::unwrap_failed::h73569ff13c30ae81
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x55fa01e0ec50 - core::result::Result<T,E>::expect::hb781ae56bf9af4dd
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libcore/result.rs:960
[INFO] [stderr]   16:     0x55fa01de24b5 - build_script_build::main::hbd0742c0f8192a4b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   17:     0x55fa01e0a770 - std::rt::lang_start::{{closure}}::h8a0b7090b1a6b075
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x55fa0209fc03 - std::rt::lang_start_internal::{{closure}}::hcbc0d39047dfb53e
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   19:     0x55fa0209fc03 - std::panicking::try::do_call::h8b5ef32d822a8d8f
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   20:     0x55fa020a61aa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   21:     0x55fa020a078d - std::panicking::try::h9b6fb4e6a40ce0cb
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   22:     0x55fa020a078d - std::panic::catch_unwind::h2fbf9b8ead8e504a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x55fa020a078d - std::rt::lang_start_internal::hb6581c1f21bf501d
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   24:     0x55fa01e0a749 - std::rt::lang_start::h0b7bd0f0e73e47fb
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   25:     0x55fa01de26ba - main
[INFO] [stderr]   26:     0x7f8139dfbb97 - __libc_start_main
[INFO] [stderr]   27:     0x55fa01db4bea - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "55b4b38263dddcc81f6339cfa59c8f2b1e1cb311c5a239c29645b77a0e3e4acd"`
[INFO] running `"docker" "rm" "-f" "55b4b38263dddcc81f6339cfa59c8f2b1e1cb311c5a239c29645b77a0e3e4acd"`
[INFO] [stdout] 55b4b38263dddcc81f6339cfa59c8f2b1e1cb311c5a239c29645b77a0e3e4acd