[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#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[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 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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] f0555880c46f7e875a2b44758e5d44c582ba276e0c6b9a4ee3f027aa15d99473
[INFO] running `"docker" "start" "-a" "f0555880c46f7e875a2b44758e5d44c582ba276e0c6b9a4ee3f027aa15d99473"`
[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 backtrace-sys v0.1.24
[INFO] [stderr]    Compiling ryu v0.2.6
[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 aho-corasick v0.6.8
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling serde_json v1.0.32
[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 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-090ce0beb00ba38b/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-e23d2b962b32aafa/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:     0x563855206843 - backtrace::backtrace::libunwind::trace::h093f55ee004fda30
[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::heb9cba2d2ce373d1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x563855203a83 - backtrace::capture::Backtrace::new_unresolved::he84cef763e4edc99
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]    2:     0x563854fcad2b - failure::backtrace::internal::InternalBacktrace::new::ha3ade015a7ec6270
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x563854fca02c - failure::backtrace::Backtrace::new::h23b9ac57661ca99a
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]    4:     0x563854f9241b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h7e4e0e60e41dbb68
[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:     0x563854fc4707 - <failure::error::Error as core::convert::From<F>>::from::ha7835fc7d8bbeb5f
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]    6:     0x563854f92245 - failure::error_message::err_msg::hfb06a0b276f3a3bf
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]    7:     0x563854f94c75 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::he6ead99dfc4b492e
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]    8:     0x563854fc9008 - core::result::Result<T,E>::map_err::h2ad083db48094c64
[INFO] [stderr]                         at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libcore/result.rs:604
[INFO] [stderr]    9:     0x563854f93769 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h63995de2e218b6d1
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]   10:     0x563854f927f8 - build_script_build::llvm::Generator::parse_llvm_sys_crate::hba8e2737c03d1252
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]   11:     0x563854f9de91 - build_script_build::main::h63ec45f4f26da157
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   12:     0x563854fc231f - std::rt::lang_start::{{closure}}::he4f4f8336f871ac7
[INFO] [stderr]                         at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libstd/rt.rs:67
[INFO] [stderr]   13:     0x563855237b22 - std::rt::lang_start_internal::{{closure}}::hc1bd2d2da4dd74b9
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::h9f59420e248835fc
[INFO] [stderr]                         at src/libstd/panicking.rs:305
[INFO] [stderr]   14:     0x56385523df86 - __rust_maybe_catch_panic
[INFO] [stderr]                         at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   15:     0x5638552385bf - std::panicking::try::h7609e33bc6f5c79e
[INFO] [stderr]                         at src/libstd/panicking.rs:281
[INFO] [stderr]                          - std::panic::catch_unwind::hc7bab43da40a3b53
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::h42c1fa4c62e7d813
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x563854fc22f8 - std::rt::lang_start::h9efb33a5d910ed9c
[INFO] [stderr]                         at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x563854f9e0f9 - main
[INFO] [stderr]   18:     0x7fd6a3d43b96 - __libc_start_main
[INFO] [stderr]   19:     0x563854f7a219 - _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:     0x563855235704 - backtrace::backtrace::libunwind::trace::hbdf12825152b5f8a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563855235704 - backtrace::backtrace::trace_unsynchronized::hb1a008bcaf6f8da7
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563855235704 - std::sys_common::backtrace::_print_fmt::h210f4f1409fdd548
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x563855235704 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h44ccfd866beec4c3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x563855255b8c - core::fmt::write::ha0b7307be189d30e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x5638552329d7 - std::io::Write::write_fmt::h0ca0cc8fa24b63fd
[INFO] [stderr]                                at src/libstd/io/mod.rs:1426
[INFO] [stderr]    6:     0x5638552379f5 - std::sys_common::backtrace::_print::h3f2352b9ea108241
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5638552379f5 - std::sys_common::backtrace::print::hdff6c325922df749
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5638552379f5 - std::panicking::default_hook::{{closure}}::h6db4182f902f3e09
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x5638552376e1 - std::panicking::default_hook::hfff2d7c860e99ade
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x56385523805a - std::panicking::rust_panic_with_hook::h384bd314abe122b7
[INFO] [stderr]                                at src/libstd/panicking.rs:472
[INFO] [stderr]   11:     0x563855237c40 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x5638552546a1 - core::panicking::panic_fmt::hd334d5dfa13449f9
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x5638552544c3 - core::option::expect_none_failed::h92ed148445d3ab2b
[INFO] [stderr]                                at src/libcore/option.rs:1199
[INFO] [stderr]   14:     0x563854fc89b3 - core::result::Result<T,E>::expect::hfeec4364932df431
[INFO] [stderr]                                at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libcore/result.rs:991
[INFO] [stderr]   15:     0x563854f9debc - build_script_build::main::h63ec45f4f26da157
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]   16:     0x563854fc2320 - std::rt::lang_start::{{closure}}::he4f4f8336f871ac7
[INFO] [stderr]                                at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x563855237b23 - std::rt::lang_start_internal::{{closure}}::hc1bd2d2da4dd74b9
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x563855237b23 - std::panicking::try::do_call::h9f59420e248835fc
[INFO] [stderr]                                at src/libstd/panicking.rs:305
[INFO] [stderr]   19:     0x56385523df87 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   20:     0x5638552385c0 - std::panicking::try::h7609e33bc6f5c79e
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   21:     0x5638552385c0 - std::panic::catch_unwind::hc7bab43da40a3b53
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x5638552385c0 - std::rt::lang_start_internal::h42c1fa4c62e7d813
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x563854fc22f9 - std::rt::lang_start::h9efb33a5d910ed9c
[INFO] [stderr]                                at /rustc/73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x563854f9e0fa - main
[INFO] [stderr]   25:     0x7fd6a3d43b97 - __libc_start_main
[INFO] [stderr]   26:     0x563854f7a21a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "f0555880c46f7e875a2b44758e5d44c582ba276e0c6b9a4ee3f027aa15d99473"`
[INFO] running `"docker" "rm" "-f" "f0555880c46f7e875a2b44758e5d44c582ba276e0c6b9a4ee3f027aa15d99473"`
[INFO] [stdout] f0555880c46f7e875a2b44758e5d44c582ba276e0c6b9a4ee3f027aa15d99473