[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#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "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-10/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" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+e922e6444795ab795fab1943288aee3d543699b8" "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] 5d3568078ebe7f1758400a83a0e56ef92fed86105d40b54fd92cbc35a09b91bf
[INFO] running `"docker" "start" "-a" "5d3568078ebe7f1758400a83a0e56ef92fed86105d40b54fd92cbc35a09b91bf"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking libloading v0.5.0
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.32
[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 synstructure v0.10.0
[INFO] [stderr]    Compiling llvm-sys v70.0.1
[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-2a03333e28974e02/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-473868cf4b4e033e/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:     0x557839ed26d3 - backtrace::backtrace::libunwind::trace::h230614d88b4bd4e9
[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::h2c8ae7212fe5eeb5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x557839ecc233 - backtrace::capture::Backtrace::new_unresolved::h37981d10ba5bf977
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x557839c94dbb - failure::backtrace::internal::InternalBacktrace::new::hb13303e88e0a61fe
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x557839c9402c - failure::backtrace::Backtrace::new::hff0979b8a169146e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x557839c5f2ab - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h85d3186d6ee77063
[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:     0x557839c6a877 - <failure::error::Error as core::convert::From<F>>::from::h6ff100a667e54286
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x557839c64025 - failure::error_message::err_msg::hec0c95f1716c78f5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x557839c618c2 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::hf5f3ce5f34cbbe1e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x557839c935b8 - core::result::Result<T,E>::map_err::he5ebecdba59921f5
[INFO] [stderr]                         at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libcore/result.rs:598
[INFO] [stderr]    9:     0x557839c60499 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h8768c9a3be8b5d06
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x557839c5f558 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hd1588a5ff0147cea
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x557839c65df7 - build_script_build::main::h89c063d53de881bc
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x557839c8c4df - std::rt::lang_start::{{closure}}::h3a33e423be12a70f
[INFO] [stderr]                         at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x557839eff6d2 - std::rt::lang_start_internal::{{closure}}::h537a2d77f0f9eb2b
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::hac85bb9436248e0f
[INFO] [stderr]                         at src/libstd/panicking.rs:292
[INFO] [stderr]   14:     0x557839f05c69 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   15:     0x557839f001df - std::panicking::try::hfda737be6bc9b3a3
[INFO] [stderr]                         at src/libstd/panicking.rs:270
[INFO] [stderr]                          - std::panic::catch_unwind::hb168c94334b21b4b
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h76b1fe1020874f18
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x557839c8c4b8 - std::rt::lang_start::h0acfc5af4a8771b4
[INFO] [stderr]                         at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x557839c66039 - main
[INFO] [stderr]   18:     0x7f30016e1b96 - __libc_start_main
[INFO] [stderr]   19:     0x557839c3c199 - _start
[INFO] [stderr]   20:                0x0 - <unknown>', src/libcore/result.rs:1189:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x557839efd334 - backtrace::backtrace::libunwind::trace::h9f1d8738cf6f142e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x557839efd334 - backtrace::backtrace::trace_unsynchronized::h36d929b1b2ff5781
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x557839efd334 - std::sys_common::backtrace::_print_fmt::hacbc333e6aeece5a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x557839efd334 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdf9238626066ab75
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x557839f1f6ec - core::fmt::write::h5e029752b22165fa
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1024
[INFO] [stderr]    5:     0x557839efa607 - std::io::Write::write_fmt::hf6191160ed350e3f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x557839eff5ae - std::sys_common::backtrace::_print::h6a8189d6f64e43ee
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x557839eff5ae - std::sys_common::backtrace::print::h8fb1dcbcd98a6ec2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x557839eff5ae - std::panicking::default_hook::{{closure}}::h85d7bb172edc868f
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x557839eff2a1 - std::panicking::default_hook::h4c7e437cd4a16e76
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x557839effc8b - std::panicking::rust_panic_with_hook::h8647154d80cbed98
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x557839eff83e - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x557839f1c50e - core::panicking::panic_fmt::he443c7a6ed279995
[INFO] [stderr]                                at src/libcore/panicking.rs:82
[INFO] [stderr]   13:     0x557839f1c607 - core::result::unwrap_failed::h0e3645285a9409f4
[INFO] [stderr]                                at src/libcore/result.rs:1189
[INFO] [stderr]   14:     0x557839c92cd0 - core::result::Result<T,E>::expect::h6e9a1b986b199eb5
[INFO] [stderr]                                at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libcore/result.rs:984
[INFO] [stderr]   15:     0x557839c65e1b - build_script_build::main::h89c063d53de881bc
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x557839c8c4e0 - std::rt::lang_start::{{closure}}::h3a33e423be12a70f
[INFO] [stderr]                                at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x557839eff6d3 - std::rt::lang_start_internal::{{closure}}::h537a2d77f0f9eb2b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x557839eff6d3 - std::panicking::try::do_call::hac85bb9436248e0f
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   19:     0x557839f05c6a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   20:     0x557839f001e0 - std::panicking::try::hfda737be6bc9b3a3
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   21:     0x557839f001e0 - std::panic::catch_unwind::hb168c94334b21b4b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x557839f001e0 - std::rt::lang_start_internal::h76b1fe1020874f18
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x557839c8c4b9 - std::rt::lang_start::h0acfc5af4a8771b4
[INFO] [stderr]                                at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x557839c6603a - main
[INFO] [stderr]   25:     0x7f30016e1b97 - __libc_start_main
[INFO] [stderr]   26:     0x557839c3c19a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "5d3568078ebe7f1758400a83a0e56ef92fed86105d40b54fd92cbc35a09b91bf"`
[INFO] running `"docker" "rm" "-f" "5d3568078ebe7f1758400a83a0e56ef92fed86105d40b54fd92cbc35a09b91bf"`
[INFO] [stdout] 5d3568078ebe7f1758400a83a0e56ef92fed86105d40b54fd92cbc35a09b91bf