[INFO] cloning repository https://github.com/CBlair1986/rustbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CBlair1986/rustbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCBlair1986%2Frustbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCBlair1986%2Frustbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e63be4735366c42cd3a165ac86e41c46c4d24d53
[INFO] documenting CBlair1986/rustbox against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCBlair1986%2Frustbox" "/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/CBlair1986/rustbox on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CBlair1986/rustbox
[INFO] finished tweaking git repo https://github.com/CBlair1986/rustbox
[INFO] tweaked toml for git repo https://github.com/CBlair1986/rustbox written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/CBlair1986/rustbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f1128ef96b46d107dbc53aef7d8a25e287c9c7b4a4da7038f8a3293fbabf2ea
[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" "2f1128ef96b46d107dbc53aef7d8a25e287c9c7b4a4da7038f8a3293fbabf2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f1128ef96b46d107dbc53aef7d8a25e287c9c7b4a4da7038f8a3293fbabf2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1128ef96b46d107dbc53aef7d8a25e287c9c7b4a4da7038f8a3293fbabf2ea", kill_on_drop: false }`
[INFO] [stdout] 2f1128ef96b46d107dbc53aef7d8a25e287c9c7b4a4da7038f8a3293fbabf2ea
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 7fa617950f0be2973d16b121bb5a08cb3b456fda6899c235729938c10eab4ab8
[INFO] running `Command { std: "docker" "start" "-a" "7fa617950f0be2973d16b121bb5a08cb3b456fda6899c235729938c10eab4ab8", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |         if (n > delta) {
[INFO] [stdout]    |            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "7fa617950f0be2973d16b121bb5a08cb3b456fda6899c235729938c10eab4ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa617950f0be2973d16b121bb5a08cb3b456fda6899c235729938c10eab4ab8", kill_on_drop: false }`
[INFO] [stdout] 7fa617950f0be2973d16b121bb5a08cb3b456fda6899c235729938c10eab4ab8