[INFO] cloning repository https://github.com/nilq/icecream
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilq/icecream" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Ficecream", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Ficecream'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffb3a020014771cf273f29d972444f3345c27c67
[INFO] documenting nilq/icecream against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Ficecream" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilq/icecream 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 git repo https://github.com/nilq/icecream
[INFO] finished tweaking git repo https://github.com/nilq/icecream
[INFO] tweaked toml for git repo https://github.com/nilq/icecream written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/nilq/icecream already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 7528f898685b7ee59486091e8a829607b90521f344ef7c2ce8f261e648ec500f
[INFO] running `Command { std: "docker" "start" "-a" "7528f898685b7ee59486091e8a829607b90521f344ef7c2ce8f261e648ec500f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7528f898685b7ee59486091e8a829607b90521f344ef7c2ce8f261e648ec500f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7528f898685b7ee59486091e8a829607b90521f344ef7c2ce8f261e648ec500f", kill_on_drop: false }`
[INFO] [stdout] 7528f898685b7ee59486091e8a829607b90521f344ef7c2ce8f261e648ec500f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 724033648c89f5df42561a0ed33e25e5a0c358b9ea6a2aedb8afe756e3b448bf
[INFO] running `Command { std: "docker" "start" "-a" "724033648c89f5df42561a0ed33e25e5a0c358b9ea6a2aedb8afe756e3b448bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling llvm-sys v0.3.0
[INFO] [stderr]  Documenting bathroom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/vm/module.rs:62:89
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     error = String::from_utf8_lossy(err_buffer.to_bytes()).into_owned();;
[INFO] [stdout]    |                                                                                         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` 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 4.64s
[INFO] running `Command { std: "docker" "inspect" "724033648c89f5df42561a0ed33e25e5a0c358b9ea6a2aedb8afe756e3b448bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "724033648c89f5df42561a0ed33e25e5a0c358b9ea6a2aedb8afe756e3b448bf", kill_on_drop: false }`
[INFO] [stdout] 724033648c89f5df42561a0ed33e25e5a0c358b9ea6a2aedb8afe756e3b448bf