[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 try#d93021f5faa26e4f9d2719e79f9974e06aa40e17 for pr-71873
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain d93021f5faa26e4f9d2719e79f9974e06aa40e17
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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-8/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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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] 8a8a6024fcf1edac8456464f631a3664c2632f3555f1561ea777ad38d4bfe419
[INFO] running `"docker" "start" "-a" "8a8a6024fcf1edac8456464f631a3664c2632f3555f1561ea777ad38d4bfe419"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.25
[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 serde v1.0.80
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[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 strsim v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[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 synstructure v0.10.0
[INFO] [stderr]    Compiling llvm-sys v70.0.1
[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-e95fbf2a82e68440/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-c3a4abdeae538b64/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:     0x56494ec767f3 - backtrace::backtrace::libunwind::trace::h28bfda19a3ec1e33
[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::h5a7270b018b5fc66
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x56494ec72023 - backtrace::capture::Backtrace::new_unresolved::hcb9e5f3170775bd0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x56494ea68065 - failure::backtrace::internal::InternalBacktrace::new::he7b6b82496ab2d61
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x56494ea66e2c - failure::backtrace::Backtrace::new::ha93a4bca9abf8232
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x56494ea33e0b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h10cca421cbfb1e6c
[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:     0x56494ea62507 - <failure::error::Error as core::convert::From<F>>::from::h868cfb12b2455c35
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x56494ea37e35 - failure::error_message::err_msg::h35d3a03efb893294
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x56494ea3a3c5 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h3d1c60bcadd87632
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x56494ea5aecc - core::result::Result<T,E>::map_err::hae0b8c6f9ae62a9d
[INFO] [stderr]                         at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libcore/result.rs:612
[INFO] [stderr]    9:     0x56494ea39099 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h2cb7057abc6b97d1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x56494ea38378 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h801a28f94895cea9
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x56494ea3810c - build_script_build::main::h6a9765c010852d40
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x56494ea2b8da - std::rt::lang_start::{{closure}}::h6d9782ea94903e1e
[INFO] [stderr]                         at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x56494eca7a77 - std::rt::lang_start_internal::{{closure}}::h8ee41efd8ae7ff76
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::h0a4c4514ee6ebbfc
[INFO] [stderr]                         at src/libstd/panicking.rs:297
[INFO] [stderr]                          - std::panicking::try::hc7012c8537f2104c
[INFO] [stderr]                         at src/libstd/panicking.rs:274
[INFO] [stderr]                          - std::panic::catch_unwind::h5075397adefb30fe
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h1c1398259f72ace6
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   14:     0x56494ea2b8b6 - std::rt::lang_start::hcb80f30f352118a8
[INFO] [stderr]                         at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x56494ea3b199 - main
[INFO] [stderr]   16:     0x7f485208f0b2 - __libc_start_main
[INFO] [stderr]   17:     0x56494ea141ad - _start
[INFO] [stderr]   18:                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:     0x56494eca4744 - backtrace::backtrace::libunwind::trace::hfcd33194db0151d4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x56494eca4744 - backtrace::backtrace::trace_unsynchronized::hfd1904bbbd5335b5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56494eca4744 - std::sys_common::backtrace::_print_fmt::h8476c57b177b254e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x56494eca4744 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h73acbc5f6d4b1044
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x56494eccbacc - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x56494eca1953 - std::io::Write::write_fmt::h5722fa40bb2afafd
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x56494eca6f95 - std::sys_common::backtrace::_print::ha468e873aada7c78
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x56494eca6f95 - std::sys_common::backtrace::print::h149365a2f029de62
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56494eca6f95 - std::panicking::default_hook::{{closure}}::hb4a33f9e05934a52
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x56494eca6cd2 - std::panicking::default_hook::hc4535d7b0c743abd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x56494eca75d8 - std::panicking::rust_panic_with_hook::haa34a96a6dbd5a2e
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x56494eca71db - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:385
[INFO] [stderr]   12:     0x56494ecca4f1 - core::panicking::panic_fmt::hd101a87121fa411f
[INFO] [stderr]                                at src/libcore/panicking.rs:89
[INFO] [stderr]   13:     0x56494ecca313 - core::option::expect_none_failed::h4f0e89faa3179bf7
[INFO] [stderr]                                at src/libcore/option.rs:1272
[INFO] [stderr]   14:     0x56494ea5a7b0 - core::result::Result<T,E>::expect::hed46aa971a44e0fb
[INFO] [stderr]                                at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x56494ea38137 - build_script_build::main::h6a9765c010852d40
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x56494ea2b8db - std::rt::lang_start::{{closure}}::h6d9782ea94903e1e
[INFO] [stderr]                                at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x56494eca7a78 - std::rt::lang_start_internal::{{closure}}::h8ee41efd8ae7ff76
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x56494eca7a78 - std::panicking::try::do_call::h0a4c4514ee6ebbfc
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x56494eca7a78 - std::panicking::try::hc7012c8537f2104c
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x56494eca7a78 - std::panic::catch_unwind::h5075397adefb30fe
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x56494eca7a78 - std::rt::lang_start_internal::h1c1398259f72ace6
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x56494ea2b8b7 - std::rt::lang_start::hcb80f30f352118a8
[INFO] [stderr]                                at /rustc/d93021f5faa26e4f9d2719e79f9974e06aa40e17/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x56494ea3b19a - main
[INFO] [stderr]   24:     0x7f485208f0b3 - __libc_start_main
[INFO] [stderr]   25:     0x56494ea141ae - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "8a8a6024fcf1edac8456464f631a3664c2632f3555f1561ea777ad38d4bfe419"`
[INFO] running `"docker" "rm" "-f" "8a8a6024fcf1edac8456464f631a3664c2632f3555f1561ea777ad38d4bfe419"`
[INFO] [stdout] 8a8a6024fcf1edac8456464f631a3664c2632f3555f1561ea777ad38d4bfe419