[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#7cb06892a23b4da510686618c8730f0b2e8bd952 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain 7cb06892a23b4da510686618c8730f0b2e8bd952
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "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-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 `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "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] 3b7895333f1e5daa27b3ed3527275693dc4eaac67f003c234f3f2bd4329b90fe
[INFO] running `"docker" "start" "-a" "3b7895333f1e5daa27b3ed3527275693dc4eaac67f003c234f3f2bd4329b90fe"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling rust-monkey-ir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling error-chain v0.12.0
[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 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-f71187fa8b3a8804/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-89e6ad8efb41f97f/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:     0x557482863f13 - backtrace::backtrace::libunwind::trace::h867ca83bd4fcf36a
[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::h3764ed442257254e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x55748285da93 - backtrace::capture::Backtrace::new_unresolved::h526267fac300e246
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x55748262525b - failure::backtrace::internal::InternalBacktrace::new::h24d453e16aa65785
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x55748262438c - failure::backtrace::Backtrace::new::h7b1e88f53dfe7cb3
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x5574825ef41b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h5974702e0b3e23dd
[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:     0x5574825fabd7 - <failure::error::Error as core::convert::From<F>>::from::hc9ac92be3e5299f8
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x5574825f4385 - failure::error_message::err_msg::hc77e79a3827a1d38
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x5574825f1c22 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h56c85bef2b0db2b4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x5574826235c8 - core::result::Result<T,E>::map_err::h019481a6df1db48d
[INFO] [stderr]                         at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libcore/result.rs:598
[INFO] [stderr]    9:     0x5574825f07f9 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h13fc9acadfd024db
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x5574825ef8b8 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h5f8d21a12e3e72b2
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x5574825f6157 - build_script_build::main::ha9f68636e5155d66
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x55748261c83f - std::rt::lang_start::{{closure}}::h88adda00da2b18d2
[INFO] [stderr]                         at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x557482890f02 - std::rt::lang_start_internal::{{closure}}::h1784eb06fa376c84
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::hc1b239edbaea435b
[INFO] [stderr]                         at src/libstd/panicking.rs:292
[INFO] [stderr]   14:     0x557482897499 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   15:     0x557482891a0f - std::panicking::try::h3488fc3f1d3c9eea
[INFO] [stderr]                         at src/libstd/panicking.rs:270
[INFO] [stderr]                          - std::panic::catch_unwind::h2a34869edc5a61ae
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h0cda2cb9c4b6b0f8
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x55748261c818 - std::rt::lang_start::hefab1370c91ffb7d
[INFO] [stderr]                         at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x5574825f6399 - main
[INFO] [stderr]   18:     0x7f1264436b96 - __libc_start_main
[INFO] [stderr]   19:     0x5574825cc4f9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>', src/libcore/result.rs:1189:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55748288eb64 - backtrace::backtrace::libunwind::trace::hdb81db0bd6831d04
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55748288eb64 - backtrace::backtrace::trace_unsynchronized::h38672f8e088162ec
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55748288eb64 - std::sys_common::backtrace::_print_fmt::h3477885c1cf600bf
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x55748288eb64 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1b1db80893bb1d47
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x5574828b0f1c - core::fmt::write::hb45c0f2659d06ea0
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1024
[INFO] [stderr]    5:     0x55748288be37 - std::io::Write::write_fmt::h69aed8c2f069f95a
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x557482890dde - std::sys_common::backtrace::_print::h7994adb630479b56
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x557482890dde - std::sys_common::backtrace::print::h3b61bc008bfbd441
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x557482890dde - std::panicking::default_hook::{{closure}}::h3fe670170d668cf0
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x557482890ad1 - std::panicking::default_hook::h3b06cb1df08e0592
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x5574828914bb - std::panicking::rust_panic_with_hook::h1d228350fd59b915
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x55748289106e - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x5574828add3e - core::panicking::panic_fmt::h859a658f321e3538
[INFO] [stderr]                                at src/libcore/panicking.rs:82
[INFO] [stderr]   13:     0x5574828ade37 - core::result::unwrap_failed::h2115f970ea0a48ba
[INFO] [stderr]                                at src/libcore/result.rs:1189
[INFO] [stderr]   14:     0x557482623030 - core::result::Result<T,E>::expect::hae02b801ff5dd622
[INFO] [stderr]                                at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libcore/result.rs:984
[INFO] [stderr]   15:     0x5574825f617b - build_script_build::main::ha9f68636e5155d66
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x55748261c840 - std::rt::lang_start::{{closure}}::h88adda00da2b18d2
[INFO] [stderr]                                at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x557482890f03 - std::rt::lang_start_internal::{{closure}}::h1784eb06fa376c84
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x557482890f03 - std::panicking::try::do_call::hc1b239edbaea435b
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   19:     0x55748289749a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   20:     0x557482891a10 - std::panicking::try::h3488fc3f1d3c9eea
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   21:     0x557482891a10 - std::panic::catch_unwind::h2a34869edc5a61ae
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x557482891a10 - std::rt::lang_start_internal::h0cda2cb9c4b6b0f8
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x55748261c819 - std::rt::lang_start::hefab1370c91ffb7d
[INFO] [stderr]                                at /rustc/7cb06892a23b4da510686618c8730f0b2e8bd952/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x5574825f639a - main
[INFO] [stderr]   25:     0x7f1264436b97 - __libc_start_main
[INFO] [stderr]   26:     0x5574825cc4fa - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "3b7895333f1e5daa27b3ed3527275693dc4eaac67f003c234f3f2bd4329b90fe"`
[INFO] running `"docker" "rm" "-f" "3b7895333f1e5daa27b3ed3527275693dc4eaac67f003c234f3f2bd4329b90fe"`
[INFO] [stdout] 3b7895333f1e5daa27b3ed3527275693dc4eaac67f003c234f3f2bd4329b90fe