[INFO] fetching crate ross 0.1.7...
[INFO] documenting ross-0.1.7 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate ross 0.1.7 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate ross 0.1.7 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ross 0.1.7
[INFO] finished tweaking crates.io crate ross 0.1.7
[INFO] tweaked toml for crates.io crate ross 0.1.7 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 452e50caa8a8f8ee9924c337b065d1a4814f53eb8595d26c3f80ca366e2e619d
[INFO] running `Command { std: "docker" "start" "-a" "452e50caa8a8f8ee9924c337b065d1a4814f53eb8595d26c3f80ca366e2e619d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "452e50caa8a8f8ee9924c337b065d1a4814f53eb8595d26c3f80ca366e2e619d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452e50caa8a8f8ee9924c337b065d1a4814f53eb8595d26c3f80ca366e2e619d", kill_on_drop: false }`
[INFO] [stdout] 452e50caa8a8f8ee9924c337b065d1a4814f53eb8595d26c3f80ca366e2e619d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3e4984d3596796ed6197ba247f8064dbda5a7107d9bd10f3d2be5e221a4933e
[INFO] running `Command { std: "docker" "start" "-a" "e3e4984d3596796ed6197ba247f8064dbda5a7107d9bd10f3d2be5e221a4933e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking multiqueue v0.3.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking statistical v0.1.1
[INFO] [stderr]     Checking ross v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ross v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/io/seq.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout]    |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/io/seq.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout]    |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ross`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name ross 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 getopts=/opt/rustwide/target/debug/deps/libgetopts-8d1bb0c45a53763d.rmeta --extern multiqueue=/opt/rustwide/target/debug/deps/libmultiqueue-356d9aeabfc7fec4.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b62d56a65f9c5471.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f5cb222ddd7062a0.rmeta --extern statistical=/opt/rustwide/target/debug/deps/libstatistical-79068b213a773505.rmeta --cap-lints=warn --crate-version 0.1.7` (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" "e3e4984d3596796ed6197ba247f8064dbda5a7107d9bd10f3d2be5e221a4933e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e4984d3596796ed6197ba247f8064dbda5a7107d9bd10f3d2be5e221a4933e", kill_on_drop: false }`
[INFO] [stdout] e3e4984d3596796ed6197ba247f8064dbda5a7107d9bd10f3d2be5e221a4933e
