[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#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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-0/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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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] b3258523ee3e38bbfc243221b82f42d6ea4cdd248ae05e6080c3efc48bdbdd70
[INFO] running `"docker" "start" "-a" "b3258523ee3e38bbfc243221b82f42d6ea4cdd248ae05e6080c3efc48bdbdd70"`
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.0
[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 backtrace-sys v0.1.24
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[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-9dd81623e983484b/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-204abdbcb5367269/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:     0x55aa119d5453 - backtrace::backtrace::libunwind::trace::h873ecd300cb7221e
[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::h51b7dadbcfaf1066
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x55aa119d1d93 - backtrace::capture::Backtrace::new_unresolved::h587698c2cccda13e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x55aa117cfd6d - failure::backtrace::internal::InternalBacktrace::new::h76d0ae64aee49787
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x55aa117ceb9c - failure::backtrace::Backtrace::new::hcfdb55506f1b5429
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x55aa117ce1eb - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h06d8d128e2f32258
[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:     0x55aa117ca407 - <failure::error::Error as core::convert::From<F>>::from::h17b476135da84886
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x55aa11799d65 - failure::error_message::err_msg::h0f46fdfd198f8ac4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x55aa1179bfb5 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h6e20e314a0e4d49f
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x55aa1179e2ec - core::result::Result<T,E>::map_err::h0da4c2564902f083
[INFO] [stderr]                         at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libcore/result.rs:610
[INFO] [stderr]    9:     0x55aa1179ac89 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h0630209df0455f7b
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x55aa11799f18 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h5f7044caecc5c296
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x55aa117ce6ac - build_script_build::main::h0e85402e81115ae4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x55aa117c803a - std::rt::lang_start::{{closure}}::hca1096a9add25dff
[INFO] [stderr]                         at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x55aa11a04cc2 - std::rt::lang_start_internal::{{closure}}::h80386bdbf19e8f1d
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::he1209bc3d4aaf715
[INFO] [stderr]                         at src/libstd/panicking.rs:303
[INFO] [stderr]   14:     0x55aa11a0b516 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   15:     0x55aa11a05778 - std::panicking::try::hf520d8976c058f40
[INFO] [stderr]                         at src/libstd/panicking.rs:281
[INFO] [stderr]                          - std::panic::catch_unwind::h7564024f837c4151
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h41ae6763c6895ece
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x55aa117c8016 - std::rt::lang_start::h38cd0e919ea34f43
[INFO] [stderr]                         at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55aa117ce909 - main
[INFO] [stderr]   18:     0x7fa3adf83b96 - __libc_start_main
[INFO] [stderr]   19:     0x55aa11782949 - _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:     0x55aa11a024a4 - backtrace::backtrace::libunwind::trace::h9969d01c3d7ddfdc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55aa11a024a4 - backtrace::backtrace::trace_unsynchronized::h7a2ab063e77952ab
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55aa11a024a4 - std::sys_common::backtrace::_print_fmt::h1b217822a512fc5b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55aa11a024a4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h96fb4331ad79020d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55aa11a24e1c - core::fmt::write::hc201330da9c33c5d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1053
[INFO] [stderr]    5:     0x55aa119ff507 - std::io::Write::write_fmt::h309332b527674af9
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55aa11a04ba5 - std::sys_common::backtrace::_print::h9ef4e37c06092ebe
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55aa11a04ba5 - std::sys_common::backtrace::print::h2a9175f5cd9eccf0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55aa11a04ba5 - std::panicking::default_hook::{{closure}}::ha832c9ee735a1b99
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55aa11a048e7 - std::panicking::default_hook::hddac80d07a5399db
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55aa11a05202 - std::panicking::rust_panic_with_hook::haa6a112655213edb
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55aa11a04deb - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x55aa11a237e1 - core::panicking::panic_fmt::hcd08174c8e23fb34
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x55aa11a23603 - core::option::expect_none_failed::h7ba96e1794a9140c
[INFO] [stderr]                                at src/libcore/option.rs:1211
[INFO] [stderr]   14:     0x55aa1179df40 - core::result::Result<T,E>::expect::h5610eb542b234f6b
[INFO] [stderr]                                at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libcore/result.rs:961
[INFO] [stderr]   15:     0x55aa117ce6d7 - build_script_build::main::h0e85402e81115ae4
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x55aa117c803b - std::rt::lang_start::{{closure}}::hca1096a9add25dff
[INFO] [stderr]                                at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55aa11a04cc3 - std::rt::lang_start_internal::{{closure}}::h80386bdbf19e8f1d
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55aa11a04cc3 - std::panicking::try::do_call::he1209bc3d4aaf715
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   19:     0x55aa11a0b517 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   20:     0x55aa11a05779 - std::panicking::try::hf520d8976c058f40
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   21:     0x55aa11a05779 - std::panic::catch_unwind::h7564024f837c4151
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x55aa11a05779 - std::rt::lang_start_internal::h41ae6763c6895ece
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x55aa117c8017 - std::rt::lang_start::h38cd0e919ea34f43
[INFO] [stderr]                                at /rustc/eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x55aa117ce90a - main
[INFO] [stderr]   25:     0x7fa3adf83b97 - __libc_start_main
[INFO] [stderr]   26:     0x55aa1178294a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "b3258523ee3e38bbfc243221b82f42d6ea4cdd248ae05e6080c3efc48bdbdd70"`
[INFO] running `"docker" "rm" "-f" "b3258523ee3e38bbfc243221b82f42d6ea4cdd248ae05e6080c3efc48bdbdd70"`
[INFO] [stdout] b3258523ee3e38bbfc243221b82f42d6ea4cdd248ae05e6080c3efc48bdbdd70