[INFO] fetching crate elvis-backend 0.1.2...
[INFO] checking elvis-backend-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate elvis-backend 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate elvis-backend 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elvis-backend 0.1.2
[INFO] finished tweaking crates.io crate elvis-backend 0.1.2
[INFO] tweaked toml for crates.io crate elvis-backend 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02ad4ab4ca2a53a17e34e69b9e3eb88aefb884daa4a2768ebb23b13c37dbb90c
[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" "02ad4ab4ca2a53a17e34e69b9e3eb88aefb884daa4a2768ebb23b13c37dbb90c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02ad4ab4ca2a53a17e34e69b9e3eb88aefb884daa4a2768ebb23b13c37dbb90c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ad4ab4ca2a53a17e34e69b9e3eb88aefb884daa4a2768ebb23b13c37dbb90c", kill_on_drop: false }`
[INFO] [stdout] 02ad4ab4ca2a53a17e34e69b9e3eb88aefb884daa4a2768ebb23b13c37dbb90c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d80c35b60e635f30a961610f042347ea608b3028fe0e15fd63f71ef666c132e0
[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" "d80c35b60e635f30a961610f042347ea608b3028fe0e15fd63f71ef666c132e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking wasmparser v0.77.0
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking wit-schema-version v0.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking urlencoding v1.3.3
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking etc v0.1.16
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking wast v21.0.0
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking wit-writer v0.2.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking wit-parser v0.2.0
[INFO] [stderr]     Checking futures-channel v0.3.18
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling binaryen-sys v0.10.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking wit-validator v0.2.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking headers v0.3.5
[INFO] [stderr]     Checking wit-text v0.8.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.82/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' -C metadata=056fc67367b07e13 -C extra-filename=-056fc67367b07e13 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9dbaaf035d6d15d1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0bcba2a61b67309f.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --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" "d80c35b60e635f30a961610f042347ea608b3028fe0e15fd63f71ef666c132e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80c35b60e635f30a961610f042347ea608b3028fe0e15fd63f71ef666c132e0", kill_on_drop: false }`
[INFO] [stdout] d80c35b60e635f30a961610f042347ea608b3028fe0e15fd63f71ef666c132e0