[INFO] fetching crate shell2batch 0.4.2...
[INFO] documenting shell2batch-0.4.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate shell2batch 0.4.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate shell2batch 0.4.2 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 shell2batch 0.4.2
[INFO] finished tweaking crates.io crate shell2batch 0.4.2
[INFO] tweaked toml for crates.io crate shell2batch 0.4.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate shell2batch 0.4.2 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4a929ffe19749c64ffb7789af3597dee6fc9f5596740122ce7c076121549a2f
[INFO] running `Command { std: "docker" "start" "-a" "d4a929ffe19749c64ffb7789af3597dee6fc9f5596740122ce7c076121549a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4a929ffe19749c64ffb7789af3597dee6fc9f5596740122ce7c076121549a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a929ffe19749c64ffb7789af3597dee6fc9f5596740122ce7c076121549a2f", kill_on_drop: false }`
[INFO] [stdout] d4a929ffe19749c64ffb7789af3597dee6fc9f5596740122ce7c076121549a2f
[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] f63ce4da25741f3a3ad62996817692af28fecca3bbb58c653eec7233b0314cf1
[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" "f63ce4da25741f3a3ad62996817692af28fecca3bbb58c653eec7233b0314cf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]  Documenting shell2batch v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: unnecessary parentheses around type
[INFO] [stdout]    --> src/converter.rs:108:61
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn add_arguments(arguments: &str, additional_arguments: Vec<(String)>, pre: bool) -> String {
[INFO] [stdout]     |                                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:80:5
[INFO] [stdout]     |
[INFO] [stdout] 80  |     unused_parens,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `shell2batch`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name shell2batch 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 regex=/opt/rustwide/target/debug/deps/libregex-357c088fd08b6cb2.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f63ce4da25741f3a3ad62996817692af28fecca3bbb58c653eec7233b0314cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63ce4da25741f3a3ad62996817692af28fecca3bbb58c653eec7233b0314cf1", kill_on_drop: false }`
[INFO] [stdout] f63ce4da25741f3a3ad62996817692af28fecca3bbb58c653eec7233b0314cf1