[INFO] cloning repository https://github.com/rchaser53/llvm-rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rchaser53/llvm-rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fllvm-rust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fllvm-rust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8cd94437b3a865f14cd59ae781dac15cd7ea718a
[INFO] checking rchaser53/llvm-rust-playground against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fllvm-rust-playground" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/llvm-rust-playground on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rchaser53/llvm-rust-playground
[INFO] finished tweaking git repo https://github.com/rchaser53/llvm-rust-playground
[INFO] tweaked toml for git repo https://github.com/rchaser53/llvm-rust-playground written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rchaser53/llvm-rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] cefc5d015c4d1eef48b86d5bc591ae0dded0e09d184d42414cb3d794d61383dd
[INFO] running `Command { std: "docker" "start" "-a" "cefc5d015c4d1eef48b86d5bc591ae0dded0e09d184d42414cb3d794d61383dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cefc5d015c4d1eef48b86d5bc591ae0dded0e09d184d42414cb3d794d61383dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefc5d015c4d1eef48b86d5bc591ae0dded0e09d184d42414cb3d794d61383dd", kill_on_drop: false }`
[INFO] [stdout] cefc5d015c4d1eef48b86d5bc591ae0dded0e09d184d42414cb3d794d61383dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a149bf1453bb83cd1bda502e4b2c4a36f230635b1448cfff42706c768b340dfd
[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" "a149bf1453bb83cd1bda502e4b2c4a36f230635b1448cfff42706c768b340dfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling llvm-rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.27
[INFO] [stderr]    Compiling llvm-sys v60.2.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling rustc-llvm-proxy v0.1.3
[INFO] [stderr] error: failed to run custom build command for `rustc-llvm-proxy v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc-llvm-proxy-abb13eb5856403c2/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-4d077c64d34728c7/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:     0x559552ac5f23 - backtrace::backtrace::libunwind::trace::h3fbedf210596ac2e
[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::h839a97b25b72a518
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]      1:     0x559552ac2573 - backtrace::capture::Backtrace::new_unresolved::ha06ce736def07291
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]      2:     0x559552885255 - failure::backtrace::internal::InternalBacktrace::new::h25679e24d62a0857
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.2/src/backtrace/internal.rs:44
[INFO] [stderr]      3:     0x559552883ffc - failure::backtrace::Backtrace::new::he59bf83346487745
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.2/src/backtrace/mod.rs:111
[INFO] [stderr]      4:     0x55955288370b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hcc71720b32e2001c
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.2/src/error/error_impl.rs:20
[INFO] [stderr]      5:     0x55955285ac17 - <failure::error::Error as core::convert::From<F>>::from::hb7cf94584e8ecedb
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.2/src/error/mod.rs:36
[INFO] [stderr]      6:     0x559552883155 - failure::error_message::err_msg::h7f6f9111e2f72a00
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.2/src/error_message.rs:12
[INFO] [stderr]      7:     0x559552855755 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::{{closure}}::h162ad14ff90a7acc
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:95
[INFO] [stderr]      8:     0x5595528599cc - core::result::Result<T,E>::map_err::h21c7408d4670597b
[INFO] [stderr]                           at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/core/src/result.rs:612
[INFO] [stderr]      9:     0x559552854559 - build_script_build::llvm::Generator::get_llvm_sys_crate_path::h3df2c0fbcee80f54
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:94
[INFO] [stderr]     10:     0x559552853918 - build_script_build::llvm::Generator::parse_llvm_sys_crate::h7ea980f72d77a908
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:67
[INFO] [stderr]     11:     0x55955287e93c - build_script_build::main::h3662e3293482279a
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:18
[INFO] [stderr]     12:     0x5595528583ea - std::rt::lang_start::{{closure}}::h34c8636d1f3cc08b
[INFO] [stderr]                           at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     13:     0x559552af5ea2 - 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:     0x5595528583c6 - std::rt::lang_start::h8c037d95ad89c8aa
[INFO] [stderr]                           at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     15:     0x55955287eb99 - main
[INFO] [stderr]     16:     0x7fb6f1b6e0b2 - __libc_start_main
[INFO] [stderr]     17:     0x5595528401ad - _start
[INFO] [stderr]     18:                0x0 - <unknown>', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:20:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x559552af2d15 - 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:     0x559552af2d15 - 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:     0x559552af2d15 - std::sys_common::backtrace::_print_fmt::hb93b171b1042fa52
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x559552af2d15 - <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:     0x559552b1941c - core::fmt::write::h3a043650ba7bf668
[INFO] [stderr]                                  at library/core/src/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x559552aefd42 - std::io::Write::write_fmt::hbbad3ca30e02a58a
[INFO] [stderr]                                  at library/std/src/io/mod.rs:1510
[INFO] [stderr]      6:     0x559552af53c0 - std::sys_common::backtrace::_print::h96b2d71887f0b186
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x559552af53c0 - std::sys_common::backtrace::print::h6cd6e92e674a16a4
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x559552af53c0 - std::panicking::default_hook::{{closure}}::h76820e280a7c9f14
[INFO] [stderr]                                  at library/std/src/panicking.rs:198
[INFO] [stderr]      9:     0x559552af510c - std::panicking::default_hook::h3c589b4200c4e9d0
[INFO] [stderr]                                  at library/std/src/panicking.rs:217
[INFO] [stderr]     10:     0x559552af5a03 - std::panicking::rust_panic_with_hook::h99205632f2cac760
[INFO] [stderr]                                  at library/std/src/panicking.rs:526
[INFO] [stderr]     11:     0x559552af55fb - rust_begin_unwind
[INFO] [stderr]                                  at library/std/src/panicking.rs:437
[INFO] [stderr]     12:     0x559552b17db1 - core::panicking::panic_fmt::h019ad16a92ccd092
[INFO] [stderr]                                  at library/core/src/panicking.rs:85
[INFO] [stderr]     13:     0x559552b17bd3 - core::option::expect_none_failed::h7135ba2fdb185931
[INFO] [stderr]                                  at library/core/src/option.rs:1273
[INFO] [stderr]     14:     0x55955285970f - core::result::Result<T,E>::expect::h78844228f361f674
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/core/src/result.rs:963
[INFO] [stderr]     15:     0x55955287e967 - build_script_build::main::h3662e3293482279a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-llvm-proxy-0.1.3/build.rs:18
[INFO] [stderr]     16:     0x5595528583eb - std::rt::lang_start::{{closure}}::h34c8636d1f3cc08b
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     17:     0x559552af5ea3 - std::rt::lang_start_internal::{{closure}}::hb14aa68a79b4eb09
[INFO] [stderr]                                  at library/std/src/rt.rs:52
[INFO] [stderr]     18:     0x559552af5ea3 - std::panicking::try::do_call::haffb1227d43d77f1
[INFO] [stderr]                                  at library/std/src/panicking.rs:348
[INFO] [stderr]     19:     0x559552af5ea3 - std::panicking::try::hc085bbb3f48e6fb0
[INFO] [stderr]                                  at library/std/src/panicking.rs:325
[INFO] [stderr]     20:     0x559552af5ea3 - std::panic::catch_unwind::h0d91c438fed06f5e
[INFO] [stderr]                                  at library/std/src/panic.rs:394
[INFO] [stderr]     21:     0x559552af5ea3 - std::rt::lang_start_internal::h9a2f79aa5e187e95
[INFO] [stderr]                                  at library/std/src/rt.rs:51
[INFO] [stderr]     22:     0x5595528583c7 - std::rt::lang_start::h8c037d95ad89c8aa
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     23:     0x55955287eb9a - main
[INFO] [stderr]     24:     0x7fb6f1b6e0b3 - __libc_start_main
[INFO] [stderr]     25:     0x5595528401ae - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "a149bf1453bb83cd1bda502e4b2c4a36f230635b1448cfff42706c768b340dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a149bf1453bb83cd1bda502e4b2c4a36f230635b1448cfff42706c768b340dfd", kill_on_drop: false }`
[INFO] [stdout] a149bf1453bb83cd1bda502e4b2c4a36f230635b1448cfff42706c768b340dfd