[INFO] fetching crate unseemly 0.0.2...
[INFO] testing unseemly-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate unseemly 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate unseemly 0.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unseemly 0.0.2
[INFO] finished tweaking crates.io crate unseemly 0.0.2
[INFO] tweaked toml for crates.io crate unseemly 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate unseemly 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd7e04cb4c7ae3717d43cb5ad0e7b0d36a1b515e12941b4052fb2e62e774570a
[INFO] running `Command { std: "docker" "start" "-a" "cd7e04cb4c7ae3717d43cb5ad0e7b0d36a1b515e12941b4052fb2e62e774570a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd7e04cb4c7ae3717d43cb5ad0e7b0d36a1b515e12941b4052fb2e62e774570a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7e04cb4c7ae3717d43cb5ad0e7b0d36a1b515e12941b4052fb2e62e774570a", kill_on_drop: false }`
[INFO] [stdout] cd7e04cb4c7ae3717d43cb5ad0e7b0d36a1b515e12941b4052fb2e62e774570a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06f53b750fd8c163f20e0a3213340bfb4815d7a4ecf4ef6f95da6d12a7f28564
[INFO] running `Command { std: "docker" "start" "-a" "06f53b750fd8c163f20e0a3213340bfb4815d7a4ecf4ef6f95da6d12a7f28564", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling color-backtrace v0.5.1
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling rustyline v8.0.0
[INFO] [stderr]    Compiling unseemly v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `unseemly`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name unseemly --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=2 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on -C metadata=438f26ec9e951005 -C extra-filename=-438f26ec9e951005 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern color_backtrace=/opt/rustwide/target/debug/deps/libcolor_backtrace-528d98dfa919467e.rlib --extern custom_derive=/opt/rustwide/target/debug/deps/libcustom_derive-a3fa3cb421659aac.rlib --extern dirs=/opt/rustwide/target/debug/deps/libdirs-d109de7bb6a4ed60.rlib --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-e0e3585e7df1f3b0.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-56f070edcd4396dc.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-76dedbe1739cc8d9.rlib --extern rustyline=/opt/rustwide/target/debug/deps/librustyline-dcf66ff5f241c11e.rlib --extern tap=/opt/rustwide/target/debug/deps/libtap-e9edef892c8c5f48.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "06f53b750fd8c163f20e0a3213340bfb4815d7a4ecf4ef6f95da6d12a7f28564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f53b750fd8c163f20e0a3213340bfb4815d7a4ecf4ef6f95da6d12a7f28564", kill_on_drop: false }`
[INFO] [stdout] 06f53b750fd8c163f20e0a3213340bfb4815d7a4ecf4ef6f95da6d12a7f28564