[INFO] fetching crate elvis-backend 0.1.2...
[INFO] checking elvis-backend-0.1.2 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate elvis-backend 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate elvis-backend 0.1.2 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--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 wasm-bindgen-multi-value-xform v0.2.68
[INFO] [stderr]   Downloaded etc v0.1.12
[INFO] [stderr]   Downloaded wasm-bindgen-wasm-conventions v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-wasm-interpreter v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-externref-xform v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-threads-xform v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-cli-support v0.2.68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9f6263f594ac2f23ec55a6f9fcfcd64a8f46df9e26771dae0de6cf1174e02ec
[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" "d9f6263f594ac2f23ec55a6f9fcfcd64a8f46df9e26771dae0de6cf1174e02ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9f6263f594ac2f23ec55a6f9fcfcd64a8f46df9e26771dae0de6cf1174e02ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9f6263f594ac2f23ec55a6f9fcfcd64a8f46df9e26771dae0de6cf1174e02ec", kill_on_drop: false }`
[INFO] [stdout] d9f6263f594ac2f23ec55a6f9fcfcd64a8f46df9e26771dae0de6cf1174e02ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d80d87d1e2f76a77b76d0fd24b41d2e262a65a661da333b049e8dca5e9a55cf
[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" "4d80d87d1e2f76a77b76d0fd24b41d2e262a65a661da333b049e8dca5e9a55cf", kill_on_drop: false }`
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking wit-schema-version v0.1.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking etc v0.1.12
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking wasm-bindgen-shared v0.2.68
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking inotify-sys v0.1.4
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking wast v21.0.0
[INFO] [stderr]     Checking wit-writer v0.2.0
[INFO] [stderr]     Checking wit-parser v0.2.0
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]    Compiling binaryen-sys v0.10.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_ignored v0.1.2
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking cargo_metadata v0.10.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking multipart v0.17.0
[INFO] [stderr]     Checking wit-validator v0.2.1
[INFO] [stderr]     Checking walrus v0.18.0
[INFO] [stderr]     Checking wit-text v0.8.0
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=97613f387b4da224 -C extra-filename=-97613f387b4da224 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-d99ec406d4f72d85.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-bafe9494a629a15e.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-59d8687a968d2aeb.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-cc31f6ef785d9473.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-d459da94e17273b9.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-d960346adf92f49e.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-bdfd6f05a0f92912.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-30b02d6a6344f392.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-5739094a252a604f.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-6ca8f3550192c248.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-04b36edc96cd5b24.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-76e40229b1b82562.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" "4d80d87d1e2f76a77b76d0fd24b41d2e262a65a661da333b049e8dca5e9a55cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d80d87d1e2f76a77b76d0fd24b41d2e262a65a661da333b049e8dca5e9a55cf", kill_on_drop: false }`
[INFO] [stdout] 4d80d87d1e2f76a77b76d0fd24b41d2e262a65a661da333b049e8dca5e9a55cf