[INFO] fetching crate medal 1.10.0...
[INFO] checking medal-1.10.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate medal 1.10.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate medal 1.10.0 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 medal 1.10.0
[INFO] finished tweaking crates.io crate medal 1.10.0
[INFO] tweaked toml for crates.io crate medal 1.10.0 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate crates.io crate medal 1.10.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded block-cipher-trait v0.6.2
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[INFO] [stderr]   Downloaded itoa v0.3.4
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[INFO] [stderr]   Downloaded fsevent v0.2.17
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[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded fsevent-sys v0.1.6
[INFO] [stderr]   Downloaded openssl v0.9.24
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded serde v0.9.15
[INFO] [stderr]   Downloaded cookie v0.5.1
[INFO] [stderr]   Downloaded postgres v0.15.2
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded safemem v0.2.0
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[INFO] [stderr]   Downloaded serde_json v0.8.6
[INFO] [stderr]   Downloaded serde_json v0.9.10
[INFO] [stderr]   Downloaded persistent v0.3.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded siphasher v0.2.3
[INFO] [stderr]   Downloaded phf_shared v0.7.24
[INFO] [stderr]   Downloaded phf_codegen v0.7.24
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded inotify v0.2.3
[INFO] [stderr]   Downloaded phf v0.7.24
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded postgres-protocol v0.3.2
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded libc v0.2.85
[INFO] [stderr]   Downloaded postgres-shared v0.4.2
[INFO] [stderr]   Downloaded csv v1.1.5
[INFO] [stderr]   Downloaded iron-sessionstorage v0.6.6
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded bcrypt v0.3.0
[INFO] [stderr]   Downloaded params v0.7.1
[INFO] [stderr]   Downloaded handlebars-iron v0.25.2
[INFO] [stderr]   Downloaded multipart v0.12.0
[INFO] [stderr]   Downloaded notify v3.0.1
[INFO] [stderr]   Downloaded fallible-iterator v0.1.6
[INFO] [stderr]   Downloaded router v0.5.1
[INFO] [stderr]   Downloaded bodyparser v0.6.0
[INFO] [stderr]   Downloaded conduit-mime-types v0.7.3
[INFO] [stderr]   Downloaded hmac v0.5.0
[INFO] [stderr]   Downloaded libsqlite3-sys v0.9.3
[INFO] [stderr]   Downloaded iron v0.5.1
[INFO] [stderr]   Downloaded dtoa v0.2.2
[INFO] [stderr]   Downloaded mio v0.5.1
[INFO] [stderr]   Downloaded mount v0.3.0
[INFO] [stderr]   Downloaded crypto-mac v0.5.2
[INFO] [stderr]   Downloaded hex v0.2.0
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] [stderr]   Downloaded futures v0.1.30
[INFO] [stderr]   Downloaded md5 v0.3.8
[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] [stderr]   Downloaded staticfile v0.4.0
[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded bodyparser v0.5.0
[INFO] [stderr]   Downloaded route-recognizer v0.1.13
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded hyper v0.12.35
[INFO] [stderr]   Downloaded sequence_trie v0.2.1
[INFO] [stderr]   Downloaded walkdir v0.1.8
[INFO] [stderr]   Downloaded urlencoded v0.5.0
[INFO] [stderr]   Downloaded buf_redux v0.6.3
[INFO] [stderr]   Downloaded phf_generator v0.7.24
[INFO] [stderr]   Downloaded mime_guess v1.8.8
[INFO] [stderr]   Downloaded serde_yaml v0.8.16
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded modifier v0.1.0
[INFO] [stderr]   Downloaded base64 v0.6.0
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded itoa v0.1.1
[INFO] [stderr]   Downloaded miow v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] a3fbfa3feea7db32db9e63671df3d6338d9f48769bbfcd00bc52e3efe2ff7b93
[INFO] running `Command { std: "docker" "start" "-a" "a3fbfa3feea7db32db9e63671df3d6338d9f48769bbfcd00bc52e3efe2ff7b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3fbfa3feea7db32db9e63671df3d6338d9f48769bbfcd00bc52e3efe2ff7b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fbfa3feea7db32db9e63671df3d6338d9f48769bbfcd00bc52e3efe2ff7b93", kill_on_drop: false }`
[INFO] [stdout] a3fbfa3feea7db32db9e63671df3d6338d9f48769bbfcd00bc52e3efe2ff7b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d812c582442a8898fb8f9c9b5ac8fd740af21e7bc4b2d0da757c5a8ed6a6fae
[INFO] running `Command { std: "docker" "start" "-a" "9d812c582442a8898fb8f9c9b5ac8fd740af21e7bc4b2d0da757c5a8ed6a6fae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling libsqlite3-sys v0.9.3
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr] error: could not compile `typenum`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_main /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/typenum-1.12.0/build/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=5c348b91f5808cc6 -C extra-filename=-5c348b91f5808cc6 --out-dir /opt/rustwide/target/debug/build/typenum-5c348b91f5808cc6 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9d812c582442a8898fb8f9c9b5ac8fd740af21e7bc4b2d0da757c5a8ed6a6fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d812c582442a8898fb8f9c9b5ac8fd740af21e7bc4b2d0da757c5a8ed6a6fae", kill_on_drop: false }`
[INFO] [stdout] 9d812c582442a8898fb8f9c9b5ac8fd740af21e7bc4b2d0da757c5a8ed6a6fae
