[INFO] cloning repository https://github.com/mehcode/wadatsumi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mehcode/wadatsumi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fwadatsumi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fwadatsumi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08c3eee47e9c7d1491f726b9b3466cf548b2e6e0
[INFO] documenting mehcode/wadatsumi against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Fwadatsumi" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mehcode/wadatsumi on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config
[INFO] started tweaking git repo https://github.com/mehcode/wadatsumi
[INFO] finished tweaking git repo https://github.com/mehcode/wadatsumi
[INFO] tweaked toml for git repo https://github.com/mehcode/wadatsumi written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mehcode/wadatsumi 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] ad9118abc7ce98fb730864e064aa2a21455831f37a27eead378055d837fdd8f9
[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" "ad9118abc7ce98fb730864e064aa2a21455831f37a27eead378055d837fdd8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad9118abc7ce98fb730864e064aa2a21455831f37a27eead378055d837fdd8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9118abc7ce98fb730864e064aa2a21455831f37a27eead378055d837fdd8f9", kill_on_drop: false }`
[INFO] [stdout] ad9118abc7ce98fb730864e064aa2a21455831f37a27eead378055d837fdd8f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 587ffac84ce6ab7065729660be1c3fca768c4c97fc57ae351d54b1cf77e36e0b
[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" "587ffac84ce6ab7065729660be1c3fca768c4c97fc57ae351d54b1cf77e36e0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking unchecked_unwrap v1.0.1
[INFO] [stderr]     Checking bitintr v0.2.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]    Compiling syn v0.15.28
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling derive_more v0.14.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]  Documenting wadatsumi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.95s
[INFO] running `Command { std: "docker" "inspect" "587ffac84ce6ab7065729660be1c3fca768c4c97fc57ae351d54b1cf77e36e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587ffac84ce6ab7065729660be1c3fca768c4c97fc57ae351d54b1cf77e36e0b", kill_on_drop: false }`
[INFO] [stdout] 587ffac84ce6ab7065729660be1c3fca768c4c97fc57ae351d54b1cf77e36e0b