[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] documenting rchaser53/rust-monkey-ir against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust-monkey-ir" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust-monkey-ir on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-2/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" "+beta-2020-10-09" "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 syn v0.15.13
[INFO] [stderr]   Downloaded llvm-sys v70.0.1
[INFO] [stderr]   Downloaded rustc-llvm-proxy v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3dac447eb97ce1676fe3ac3dabdcbc9936e29ff6495c1dc1cc02376f4f1d0fe3
[INFO] running `Command { std: "docker" "start" "-a" "3dac447eb97ce1676fe3ac3dabdcbc9936e29ff6495c1dc1cc02376f4f1d0fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dac447eb97ce1676fe3ac3dabdcbc9936e29ff6495c1dc1cc02376f4f1d0fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dac447eb97ce1676fe3ac3dabdcbc9936e29ff6495c1dc1cc02376f4f1d0fe3", kill_on_drop: false }`
[INFO] [stdout] 3dac447eb97ce1676fe3ac3dabdcbc9936e29ff6495c1dc1cc02376f4f1d0fe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1af69cbe4e29bd798c662f05ebed7247b8f9a885968c90314d483b23244d5b9b
[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" "1af69cbe4e29bd798c662f05ebed7247b8f9a885968c90314d483b23244d5b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[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 lazy_static v1.1.0
[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 thread_local v0.3.6
[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 semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.32
[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-6b37a67fca59eedc/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-bb64f797402dc71f/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:     0x55fe8a41fdb3 - backtrace::backtrace::libunwind::trace::h5ef0d94c6a15d1fc
[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::h9b495b5f48081178
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]      1:     0x55fe8a41c313 - backtrace::capture::Backtrace::new_unresolved::hcbf38ab630d323cb
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]      2:     0x55fe8a22f4ca - failure::backtrace::internal::InternalBacktrace::new::hd43c5cd4ba63a30a
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]      3:     0x55fe8a22e3cc - failure::backtrace::Backtrace::new::ha30e1104108d0243
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]      4:     0x55fe8a22705b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h0fddff8fbc3d090a
[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:     0x55fe8a205047 - <failure::error::Error as core::convert::From<F>>::from::h0524b62a10f510c6
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]      6:     0x55fe8a2296b5 - failure::error_message::err_msg::hd89bfbbebe4d4fb5
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error_message.rs:12
[INFO] [stderr]      7:     0x55fe8a1ffad5 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h609fdcaffb7635ce
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:113
[INFO] [stderr]      8:     0x55fe8a202cac - core::result::Result<T,E>::map_err::ha3d5b11e5e1c014d
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/result.rs:595
[INFO] [stderr]      9:     0x55fe8a1fe7a9 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::hca50534202dcfc45
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:112
[INFO] [stderr]     10:     0x55fe8a1fda58 - build_script_build::llvm::Generator::parse_llvm_sys_crate::he5e7b3adb7ac1789
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:80
[INFO] [stderr]     11:     0x55fe8a22def9 - build_script_build::main::h2eb37f269af087d3
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     12:     0x55fe8a22a1fa - core::ops::function::FnOnce::call_once::hda094f4388cb6305
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]     13:     0x55fe8a2255bd - std::sys_common::backtrace::__rust_begin_short_backtrace::h7fef88cacb3791b4
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     14:     0x55fe8a204670 - std::rt::lang_start::{{closure}}::h8a3f4fda91c7e71a
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:66
[INFO] [stderr]     15:     0x55fe8a45acb6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h908982dfc31b926f
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:259
[INFO] [stderr]                            - std::panicking::try::do_call::h92777899503b7584
[INFO] [stderr]                           at library/std/src/panicking.rs:381
[INFO] [stderr]                            - std::panicking::try::h8815656b2b76e792
[INFO] [stderr]                           at library/std/src/panicking.rs:345
[INFO] [stderr]                            - std::panic::catch_unwind::h112ab81228f50b46
[INFO] [stderr]                           at library/std/src/panic.rs:382
[INFO] [stderr]                            - std::rt::lang_start_internal::h1772a706c7575c24
[INFO] [stderr]                           at library/std/src/rt.rs:51
[INFO] [stderr]     16:     0x55fe8a204646 - std::rt::lang_start::h0c96752aa5ee018a
[INFO] [stderr]                           at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:65
[INFO] [stderr]     17:     0x55fe8a22e149 - main
[INFO] [stderr]     18:     0x7f04f1cc60b2 - __libc_start_main
[INFO] [stderr]     19:     0x55fe8a1ea17d - _start
[INFO] [stderr]     20:                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:     0x55fe8a457ca0 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55fe8a457ca0 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55fe8a457ca0 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55fe8a457ca0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55fe8a47936c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55fe8a454f12 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]      6:     0x55fe8a45a0bd - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55fe8a45a0bd - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55fe8a45a0bd - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55fe8a459d68 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55fe8a45a7a1 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55fe8a45a349 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55fe8a45812c - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55fe8a45a309 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55fe8a477c41 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55fe8a477a63 - core::option::expect_none_failed::hd08bf36cae411fff
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/option.rs:1234
[INFO] [stderr]     16:     0x55fe8a20275f - core::result::Result<T,E>::expect::h615ecba226af35d6
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/result.rs:933
[INFO] [stderr]     17:     0x55fe8a22df24 - build_script_build::main::h2eb37f269af087d3
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.5/build.rs:18
[INFO] [stderr]     18:     0x55fe8a22a1fb - core::ops::function::FnOnce::call_once::hda094f4388cb6305
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55fe8a2255be - std::sys_common::backtrace::__rust_begin_short_backtrace::h7fef88cacb3791b4
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55fe8a204671 - std::rt::lang_start::{{closure}}::h8a3f4fda91c7e71a
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55fe8a45acb7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h908982dfc31b926f
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55fe8a45acb7 - std::panicking::try::do_call::h92777899503b7584
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55fe8a45acb7 - std::panicking::try::h8815656b2b76e792
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55fe8a45acb7 - std::panic::catch_unwind::h112ab81228f50b46
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55fe8a45acb7 - std::rt::lang_start_internal::h1772a706c7575c24
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55fe8a204647 - std::rt::lang_start::h0c96752aa5ee018a
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55fe8a22e14a - main
[INFO] [stderr]     28:     0x7f04f1cc60b3 - __libc_start_main
[INFO] [stderr]     29:     0x55fe8a1ea17e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "1af69cbe4e29bd798c662f05ebed7247b8f9a885968c90314d483b23244d5b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af69cbe4e29bd798c662f05ebed7247b8f9a885968c90314d483b23244d5b9b", kill_on_drop: false }`
[INFO] [stdout] 1af69cbe4e29bd798c662f05ebed7247b8f9a885968c90314d483b23244d5b9b
