[INFO] updating cached repository https://github.com/kohtoa15/clitc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 172017a7d5a7493089893ab7fc8c051214f4cebd
[INFO] documenting kohtoa15/clitc against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkohtoa15%2Fclitc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kohtoa15/clitc 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 git repo https://github.com/kohtoa15/clitc
[INFO] finished tweaking git repo https://github.com/kohtoa15/clitc
[INFO] tweaked toml for git repo https://github.com/kohtoa15/clitc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kohtoa15/clitc 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-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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc1844b0124382ff2e658d294bb9ddbcb1e3d4f7ef8ccd3d8820d278e03afb6
[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" "2fc1844b0124382ff2e658d294bb9ddbcb1e3d4f7ef8ccd3d8820d278e03afb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc1844b0124382ff2e658d294bb9ddbcb1e3d4f7ef8ccd3d8820d278e03afb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc1844b0124382ff2e658d294bb9ddbcb1e3d4f7ef8ccd3d8820d278e03afb6", kill_on_drop: false }`
[INFO] [stdout] 2fc1844b0124382ff2e658d294bb9ddbcb1e3d4f7ef8ccd3d8820d278e03afb6
[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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5da7fc82df8c8f0e15fe73e1d3d7a1048c4e8d6a09c0650cf60bde4aa61bb2b
[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" "a5da7fc82df8c8f0e15fe73e1d3d7a1048c4e8d6a09c0650cf60bde4aa61bb2b", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]  Documenting clitc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/params.rs:156:57
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn match_with(&self, args: &mut Vec<String>) -> (HashMap<String, ParamValue>) {
[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/params.rs:333:33
[INFO] [stdout]     |
[INFO] [stdout] 333 |         where F: Fn(&'a str) -> (Vec<String>)
[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 4.31s
[INFO] running `Command { std: "docker" "inspect" "a5da7fc82df8c8f0e15fe73e1d3d7a1048c4e8d6a09c0650cf60bde4aa61bb2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5da7fc82df8c8f0e15fe73e1d3d7a1048c4e8d6a09c0650cf60bde4aa61bb2b", kill_on_drop: false }`
[INFO] [stdout] a5da7fc82df8c8f0e15fe73e1d3d7a1048c4e8d6a09c0650cf60bde4aa61bb2b