[INFO] fetching crate elvis-backend 0.1.2...
[INFO] documenting elvis-backend-0.1.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate elvis-backend 0.1.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate elvis-backend 0.1.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18e55dd1b8e858c088f3f7bdb3bacfc9c6f2436310cd40ad7a98b2ac9d01a211
[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" "18e55dd1b8e858c088f3f7bdb3bacfc9c6f2436310cd40ad7a98b2ac9d01a211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18e55dd1b8e858c088f3f7bdb3bacfc9c6f2436310cd40ad7a98b2ac9d01a211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e55dd1b8e858c088f3f7bdb3bacfc9c6f2436310cd40ad7a98b2ac9d01a211", kill_on_drop: false }`
[INFO] [stdout] 18e55dd1b8e858c088f3f7bdb3bacfc9c6f2436310cd40ad7a98b2ac9d01a211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a584de1a3f2e2ff40a4899d6048534f3e05aa15a06897e19fe15d886257350fe
[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" "a584de1a3f2e2ff40a4899d6048534f3e05aa15a06897e19fe15d886257350fe", kill_on_drop: false }`
[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 urlencoding v1.1.1
[INFO] [stderr]     Checking etc v0.1.11
[INFO] [stderr]     Checking wast v21.0.0
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking wasm-bindgen-shared v0.2.68
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[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 sha-1 v0.8.2
[INFO] [stderr]     Checking wit-writer v0.2.0
[INFO] [stderr]     Checking wit-parser v0.2.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_ignored v0.1.2
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking multipart v0.17.0
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking cargo_metadata v0.10.0
[INFO] [stderr]     Checking tokio v0.2.22
[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]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking wasm-bindgen-wasm-conventions v0.2.68
[INFO] [stderr]     Checking wasm-bindgen-multi-value-xform v0.2.68
[INFO] [stderr]     Checking wit-walrus v0.5.0
[INFO] [stderr]     Checking wasm-bindgen-externref-xform v0.2.68
[INFO] [stderr]     Checking wasm-bindgen-threads-xform v0.2.68
[INFO] [stderr] error: could not compile `tokio`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tokio --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.22/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="blocking"' --cfg 'feature="default"' --cfg 'feature="fnv"' --cfg 'feature="fs"' --cfg 'feature="futures-core"' --cfg 'feature="io-driver"' --cfg 'feature="io-util"' --cfg 'feature="iovec"' --cfg 'feature="lazy_static"' --cfg 'feature="macros"' --cfg 'feature="memchr"' --cfg 'feature="mio"' --cfg 'feature="rt-core"' --cfg 'feature="slab"' --cfg 'feature="stream"' --cfg 'feature="sync"' --cfg 'feature="tcp"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' -C metadata=89c319719a7beea4 -C extra-filename=-89c319719a7beea4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-060d9d2e342fea55.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-eb40d7f241f41d96.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-aa2140122c65cd5b.rmeta --extern iovec=/opt/rustwide/target/debug/deps/libiovec-3a1513266feaf280.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-bf8a91ed480664b8.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-56d665844a9b2ca1.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-f9d8d5598ccacf18.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-560a8b8f37310699.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-009c82cce6fc6d11.so --cap-lints allow` (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" "a584de1a3f2e2ff40a4899d6048534f3e05aa15a06897e19fe15d886257350fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a584de1a3f2e2ff40a4899d6048534f3e05aa15a06897e19fe15d886257350fe", kill_on_drop: false }`
[INFO] [stdout] a584de1a3f2e2ff40a4899d6048534f3e05aa15a06897e19fe15d886257350fe
