[INFO] cloning repository https://github.com/rchaser53/rust-monkey-ir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rchaser53/rust-monkey-ir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 202bcb9fae0dfa8cc6357c067e8fa399b76172e8
[INFO] checking rchaser53/rust-monkey-ir against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.6.1
[INFO] [stderr]   Downloaded synstructure v0.10.0
[INFO] [stderr]   Downloaded syn v0.15.13
[INFO] [stderr]   Downloaded rustc-llvm-proxy v0.1.5
[INFO] [stderr]   Downloaded llvm-sys v70.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e4e75ab90cdd1a0f37b29b0774414f0a04b0ca3b46c6b9c065ad265d33b4472
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2e4e75ab90cdd1a0f37b29b0774414f0a04b0ca3b46c6b9c065ad265d33b4472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e4e75ab90cdd1a0f37b29b0774414f0a04b0ca3b46c6b9c065ad265d33b4472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4e75ab90cdd1a0f37b29b0774414f0a04b0ca3b46c6b9c065ad265d33b4472", kill_on_drop: false }`
[INFO] [stdout] 2e4e75ab90cdd1a0f37b29b0774414f0a04b0ca3b46c6b9c065ad265d33b4472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 098e308886f780acce50b4e8fcb39b121021aefdc72f20a30c4b8c8af1cfa6c5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "098e308886f780acce50b4e8fcb39b121021aefdc72f20a30c4b8c8af1cfa6c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling thread_local v0.3.6
[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 quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[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 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-5cff701f39039557/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-ce6c99605c7751fe/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:     0x561d2bc70663 - backtrace::backtrace::libunwind::trace::h7ba85e994a0e478c
[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::hf260c3c8739c81e4
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]      1:     0x561d2bc6ccb3 - backtrace::capture::Backtrace::new_unresolved::h6a3e042435d7d0c9
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]      2:     0x561d2ba89555 - failure::backtrace::internal::InternalBacktrace::new::hbb1891b21ba4a9b4
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]      3:     0x561d2ba882fc - failure::backtrace::Backtrace::new::hfbf3253048d78320
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]      4:     0x561d2ba81abb - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hf43bc086aa8c6b88
[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:     0x561d2ba874f7 - <failure::error::Error as core::convert::From<F>>::from::h57c8e667c9a1af4e
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]      6:     0x561d2ba87645 - failure::error_message::err_msg::hd400e266aa1925ec
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]      7:     0x561d2ba58735 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::he13549c03f14b61e
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]      8:     0x561d2ba5ae1c - core::result::Result<T,E>::map_err::h64a0a64af47b093b
[INFO] [stderr]                           at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/core/src/result.rs:612
[INFO] [stderr]      9:     0x561d2ba57409 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h6f17f116c8c7ba09
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]     10:     0x561d2ba56708 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h3bc4c2995bb39b61
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]     11:     0x561d2ba8791c - build_script_build::main::hd2f399103606611e
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     12:     0x561d2ba5d6da - std::rt::lang_start::{{closure}}::h5b5c97c7f949be0d
[INFO] [stderr]                           at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/std/src/rt.rs:67
[INFO] [stderr]     13:     0x561d2bca05e2 - std::rt::lang_start_internal::{{closure}}::hb14aa68a79b4eb09
[INFO] [stderr]                           at library/std/src/rt.rs:52
[INFO] [stderr]                            - std::panicking::try::do_call::haffb1227d43d77f1
[INFO] [stderr]                           at library/std/src/panicking.rs:348
[INFO] [stderr]                            - std::panicking::try::hc085bbb3f48e6fb0
[INFO] [stderr]                           at library/std/src/panicking.rs:325
[INFO] [stderr]                            - std::panic::catch_unwind::h0d91c438fed06f5e
[INFO] [stderr]                           at library/std/src/panic.rs:394
[INFO] [stderr]                            - std::rt::lang_start_internal::h9a2f79aa5e187e95
[INFO] [stderr]                           at library/std/src/rt.rs:51
[INFO] [stderr]     14:     0x561d2ba5d6b6 - std::rt::lang_start::h431a34f826939ef0
[INFO] [stderr]                           at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/std/src/rt.rs:67
[INFO] [stderr]     15:     0x561d2ba87b79 - main
[INFO] [stderr]     16:     0x7efedefa80b2 - __libc_start_main
[INFO] [stderr]     17:     0x561d2ba431ad - _start
[INFO] [stderr]     18:                0x0 - <unknown>', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:20:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x561d2bc9d455 - backtrace::backtrace::libunwind::trace::hdc42e81315d2a69f
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x561d2bc9d455 - backtrace::backtrace::trace_unsynchronized::hc9edcf4d4fb0b42d
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x561d2bc9d455 - std::sys_common::backtrace::_print_fmt::hb93b171b1042fa52
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x561d2bc9d455 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h589f1bf1cf74dd71
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x561d2bcc3b5c - core::fmt::write::h3a043650ba7bf668
[INFO] [stderr]                                  at library/core/src/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x561d2bc9a482 - std::io::Write::write_fmt::hbbad3ca30e02a58a
[INFO] [stderr]                                  at library/std/src/io/mod.rs:1510
[INFO] [stderr]      6:     0x561d2bc9fb00 - std::sys_common::backtrace::_print::h96b2d71887f0b186
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x561d2bc9fb00 - std::sys_common::backtrace::print::h6cd6e92e674a16a4
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x561d2bc9fb00 - std::panicking::default_hook::{{closure}}::h76820e280a7c9f14
[INFO] [stderr]                                  at library/std/src/panicking.rs:198
[INFO] [stderr]      9:     0x561d2bc9f84c - std::panicking::default_hook::h3c589b4200c4e9d0
[INFO] [stderr]                                  at library/std/src/panicking.rs:217
[INFO] [stderr]     10:     0x561d2bca0143 - std::panicking::rust_panic_with_hook::h99205632f2cac760
[INFO] [stderr]                                  at library/std/src/panicking.rs:526
[INFO] [stderr]     11:     0x561d2bc9fd3b - rust_begin_unwind
[INFO] [stderr]                                  at library/std/src/panicking.rs:437
[INFO] [stderr]     12:     0x561d2bcc24f1 - core::panicking::panic_fmt::h019ad16a92ccd092
[INFO] [stderr]                                  at library/core/src/panicking.rs:85
[INFO] [stderr]     13:     0x561d2bcc2313 - core::option::expect_none_failed::h7135ba2fdb185931
[INFO] [stderr]                                  at library/core/src/option.rs:1273
[INFO] [stderr]     14:     0x561d2ba5aaaf - core::result::Result<T,E>::expect::h23c333d3daa11c22
[INFO] [stderr]                                  at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/core/src/result.rs:963
[INFO] [stderr]     15:     0x561d2ba87947 - build_script_build::main::hd2f399103606611e
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     16:     0x561d2ba5d6db - std::rt::lang_start::{{closure}}::h5b5c97c7f949be0d
[INFO] [stderr]                                  at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/std/src/rt.rs:67
[INFO] [stderr]     17:     0x561d2bca05e3 - std::rt::lang_start_internal::{{closure}}::hb14aa68a79b4eb09
[INFO] [stderr]                                  at library/std/src/rt.rs:52
[INFO] [stderr]     18:     0x561d2bca05e3 - std::panicking::try::do_call::haffb1227d43d77f1
[INFO] [stderr]                                  at library/std/src/panicking.rs:348
[INFO] [stderr]     19:     0x561d2bca05e3 - std::panicking::try::hc085bbb3f48e6fb0
[INFO] [stderr]                                  at library/std/src/panicking.rs:325
[INFO] [stderr]     20:     0x561d2bca05e3 - std::panic::catch_unwind::h0d91c438fed06f5e
[INFO] [stderr]                                  at library/std/src/panic.rs:394
[INFO] [stderr]     21:     0x561d2bca05e3 - std::rt::lang_start_internal::h9a2f79aa5e187e95
[INFO] [stderr]                                  at library/std/src/rt.rs:51
[INFO] [stderr]     22:     0x561d2ba5d6b7 - std::rt::lang_start::h431a34f826939ef0
[INFO] [stderr]                                  at /rustc/d990716b6a1fdde1300748828a9c9e79dfd0b898/library/std/src/rt.rs:67
[INFO] [stderr]     23:     0x561d2ba87b7a - main
[INFO] [stderr]     24:     0x7efedefa80b3 - __libc_start_main
[INFO] [stderr]     25:     0x561d2ba431ae - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "098e308886f780acce50b4e8fcb39b121021aefdc72f20a30c4b8c8af1cfa6c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098e308886f780acce50b4e8fcb39b121021aefdc72f20a30c4b8c8af1cfa6c5", kill_on_drop: false }`
[INFO] [stdout] 098e308886f780acce50b4e8fcb39b121021aefdc72f20a30c4b8c8af1cfa6c5