[INFO] fetching crate kutt 0.0.2...
[INFO] checking kutt-0.0.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate kutt 0.0.2 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate kutt 0.0.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kutt 0.0.2
[INFO] finished tweaking crates.io crate kutt 0.0.2
[INFO] tweaked toml for crates.io crate kutt 0.0.2 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate crates.io crate kutt 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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 humantime v1.2.0
[INFO] [stderr]   Downloaded termcolor v1.0.5
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.14
[INFO] [stderr]   Downloaded dotenv v0.14.1
[INFO] [stderr]   Downloaded env_logger v0.6.1
[INFO] [stderr]   Downloaded miniz_oxide v0.2.1
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.2.1
[INFO] [stderr]   Downloaded string v0.2.0
[INFO] [stderr]   Downloaded hyper v0.12.30
[INFO] [stderr]   Downloaded tempfile v3.0.8
[INFO] [stderr]   Downloaded tokio-trace-core v0.2.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.7
[INFO] [stderr]   Downloaded tokio v0.1.21
[INFO] [stderr]   Downloaded fern v0.5.8
[INFO] [stderr]   Downloaded futures v0.1.27
[INFO] [stderr]   Downloaded serde_derive v1.0.93
[INFO] [stderr]   Downloaded backtrace v0.3.31
[INFO] [stderr]   Downloaded h2 v0.1.24
[INFO] [stderr]   Downloaded syn v0.15.38
[INFO] [stderr]   Downloaded serde v1.0.93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00107feb54ad4cd462e1239e619ebc84e91fb98f01bef06143388e0c4e684fde
[INFO] running `Command { std: "docker" "start" "-a" "00107feb54ad4cd462e1239e619ebc84e91fb98f01bef06143388e0c4e684fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00107feb54ad4cd462e1239e619ebc84e91fb98f01bef06143388e0c4e684fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00107feb54ad4cd462e1239e619ebc84e91fb98f01bef06143388e0c4e684fde", kill_on_drop: false }`
[INFO] [stdout] 00107feb54ad4cd462e1239e619ebc84e91fb98f01bef06143388e0c4e684fde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d070ef0e0a914060d3ddd6c61d31956d068cad0422257bf0dde84c48affe9f3e
[INFO] running `Command { std: "docker" "start" "-a" "d070ef0e0a914060d3ddd6c61d31956d068cad0422257bf0dde84c48affe9f3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking tokio-trace-core v0.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.37/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=361443b691fe7960 -C extra-filename=-361443b691fe7960 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (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" "d070ef0e0a914060d3ddd6c61d31956d068cad0422257bf0dde84c48affe9f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d070ef0e0a914060d3ddd6c61d31956d068cad0422257bf0dde84c48affe9f3e", kill_on_drop: false }`
[INFO] [stdout] d070ef0e0a914060d3ddd6c61d31956d068cad0422257bf0dde84c48affe9f3e