[INFO] cloning repository https://github.com/cavedweller/livingstone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cavedweller/livingstone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcavedweller%2Flivingstone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcavedweller%2Flivingstone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d50be360be30df424c74681b053af57b0c2c9ce
[INFO] testing cavedweller/livingstone against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcavedweller%2Flivingstone" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cavedweller/livingstone 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 git repo https://github.com/cavedweller/livingstone
[INFO] finished tweaking git repo https://github.com/cavedweller/livingstone
[INFO] tweaked toml for git repo https://github.com/cavedweller/livingstone written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate git repo https://github.com/cavedweller/livingstone 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v1.5.0
[INFO] [stderr]   Downloaded iron-sessionstorage v0.6.6
[INFO] [stderr]   Downloaded typed-arena v1.3.0
[INFO] [stderr]   Downloaded cookie v0.5.1
[INFO] [stderr]   Downloaded unicode-bidi v0.3.2
[INFO] [stderr]   Downloaded gcc v0.3.49
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded handlebars v0.25.3
[INFO] [stderr]   Downloaded idna v0.1.2
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded mount v0.3.0
[INFO] [stderr]   Downloaded notify v3.0.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.11
[INFO] [stderr]   Downloaded inotify v0.2.3
[INFO] [stderr]   Downloaded handlebars-iron v0.23.1
[INFO] [stderr]   Downloaded staticfile v0.4.0
[INFO] [stderr]   Downloaded xml-rs v0.4.1
[INFO] [stderr]   Downloaded arena-tree v0.3.0
[INFO] [stderr]   Downloaded sequence_trie v0.2.1
[INFO] [stderr]   Downloaded comrak v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 38fa792b461baef5c840038576540397da8da345f33c6026ece94101148b43bf
[INFO] running `Command { std: "docker" "start" "-a" "38fa792b461baef5c840038576540397da8da345f33c6026ece94101148b43bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38fa792b461baef5c840038576540397da8da345f33c6026ece94101148b43bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fa792b461baef5c840038576540397da8da345f33c6026ece94101148b43bf", kill_on_drop: false }`
[INFO] [stdout] 38fa792b461baef5c840038576540397da8da345f33c6026ece94101148b43bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 4a047a92e2bc7730225d41b2481988299056fd32d0a6254df91310b64a4d850c
[INFO] running `Command { std: "docker" "start" "-a" "4a047a92e2bc7730225d41b2481988299056fd32d0a6254df91310b64a4d850c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling gcc v0.3.49
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling openssl v0.9.12
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling sequence_trie v0.2.1
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling quick-error v1.2.0
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling typed-arena v1.3.0
[INFO] [stderr]    Compiling arena-tree v0.3.0
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling xml-rs v0.4.1
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]    Compiling unicode-bidi v0.3.2
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling num_cpus v1.5.0
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=d502c4cc34a0f1bf -C extra-filename=-d502c4cc34a0f1bf --out-dir /opt/rustwide/target/debug/deps -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" "4a047a92e2bc7730225d41b2481988299056fd32d0a6254df91310b64a4d850c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a047a92e2bc7730225d41b2481988299056fd32d0a6254df91310b64a4d850c", kill_on_drop: false }`
[INFO] [stdout] 4a047a92e2bc7730225d41b2481988299056fd32d0a6254df91310b64a4d850c