[INFO] crate trimmer 0.3.6 is already in cache
[INFO] documenting trimmer-0.3.6 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate trimmer 0.3.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate trimmer 0.3.6 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trimmer 0.3.6
[INFO] finished tweaking crates.io crate trimmer 0.3.6
[INFO] tweaked toml for crates.io crate trimmer 0.3.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 66f700a70b1ba2eea8138614d3fb476e71c9cfc241db4c882fb3b8982d361f06
[INFO] running `Command { std: "docker" "start" "-a" "66f700a70b1ba2eea8138614d3fb476e71c9cfc241db4c882fb3b8982d361f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66f700a70b1ba2eea8138614d3fb476e71c9cfc241db4c882fb3b8982d361f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f700a70b1ba2eea8138614d3fb476e71c9cfc241db4c882fb3b8982d361f06", kill_on_drop: false }`
[INFO] [stdout] 66f700a70b1ba2eea8138614d3fb476e71c9cfc241db4c882fb3b8982d361f06
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e34261a6dac521373a9ef5baab97b4c38ed86bc5132a9f98e373a9dedc6a870
[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" "9e34261a6dac521373a9ef5baab97b4c38ed86bc5132a9f98e373a9dedc6a870", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]  Documenting trimmer v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/number.rs:138:27
[INFO] [stdout]     |
[INFO] [stdout] 138 |             b.checked_sub((-a as u64)).map(val)
[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 method argument
[INFO] [stdout]    --> src/number.rs:162:27
[INFO] [stdout]     |
[INFO] [stdout] 162 |             a.checked_add((-b as u64)).map(val)
[INFO] [stdout]     |                           ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.30s
[INFO] running `Command { std: "docker" "inspect" "9e34261a6dac521373a9ef5baab97b4c38ed86bc5132a9f98e373a9dedc6a870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e34261a6dac521373a9ef5baab97b4c38ed86bc5132a9f98e373a9dedc6a870", kill_on_drop: false }`
[INFO] [stdout] 9e34261a6dac521373a9ef5baab97b4c38ed86bc5132a9f98e373a9dedc6a870