[INFO] crate yarws 0.3.0 is already in cache
[INFO] documenting yarws-0.3.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate yarws 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate yarws 0.3.0 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yarws 0.3.0
[INFO] finished tweaking crates.io crate yarws 0.3.0
[INFO] tweaked toml for crates.io crate yarws 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate yarws 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81a0b5e3570626059c47630fd5c4b220fda67feb45e1c46ea771ff3bd271da78
[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" "81a0b5e3570626059c47630fd5c4b220fda67feb45e1c46ea771ff3bd271da78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81a0b5e3570626059c47630fd5c4b220fda67feb45e1c46ea771ff3bd271da78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a0b5e3570626059c47630fd5c4b220fda67feb45e1c46ea771ff3bd271da78", kill_on_drop: false }`
[INFO] [stdout] 81a0b5e3570626059c47630fd5c4b220fda67feb45e1c46ea771ff3bd271da78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1154b0d637e6e9d8625922c87777d6e0e9533d1f6d2110e18f05e1495419d36a
[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" "1154b0d637e6e9d8625922c87777d6e0e9533d1f6d2110e18f05e1495419d36a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking arc-swap v0.4.5
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking smallvec v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking yarws v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting yarws v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `yarws`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name yarws src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-c661ba27f71ff288.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-570e1d8bb493c8cb.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-56bc4aec1d55c054.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-c0549c52088fc8b8.rmeta --extern hex_literal=/opt/rustwide/target/debug/deps/libhex_literal-177623e388a27580.rmeta --extern inflate=/opt/rustwide/target/debug/deps/libinflate-d3a5ca010ed9e6c5.rmeta --extern miniz_oxide=/opt/rustwide/target/debug/deps/libminiz_oxide-932ade99a3cbed29.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-710f1baf49e7ca5a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b5c2a6eea699b194.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-06a0ba4eedbf2b7d.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-d13450c8d9d7e8cb.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-381f334e1c2a5019.rmeta --extern slog=/opt/rustwide/target/debug/deps/libslog-9781a925f643e426.rmeta --extern slog_async=/opt/rustwide/target/debug/deps/libslog_async-02b565e2540009a0.rmeta --extern slog_stdlog=/opt/rustwide/target/debug/deps/libslog_stdlog-97dc234db94f2111.rmeta --extern slog_term=/opt/rustwide/target/debug/deps/libslog_term-8af5dd6678c54e7b.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-11d4522b4fc262b3.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b6bbbab562108e52.rmeta --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-b59f97cc161900b7.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-5bf579dbfd4cc27a.rmeta --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" "1154b0d637e6e9d8625922c87777d6e0e9533d1f6d2110e18f05e1495419d36a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1154b0d637e6e9d8625922c87777d6e0e9533d1f6d2110e18f05e1495419d36a", kill_on_drop: false }`
[INFO] [stdout] 1154b0d637e6e9d8625922c87777d6e0e9533d1f6d2110e18f05e1495419d36a