[INFO] cloning repository https://github.com/liclac/pngbomb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liclac/pngbomb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliclac%2Fpngbomb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliclac%2Fpngbomb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0fc2f2a42784557727e44be2f1b86844759a6fa
[INFO] documenting liclac/pngbomb 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%2Fliclac%2Fpngbomb" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liclac/pngbomb 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/liclac/pngbomb
[INFO] finished tweaking git repo https://github.com/liclac/pngbomb
[INFO] tweaked toml for git repo https://github.com/liclac/pngbomb written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/liclac/pngbomb 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7b73927da13337b9f227334d2f131b2a7d9aac5fa8f8fc1035fb6606312e882d
[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" "7b73927da13337b9f227334d2f131b2a7d9aac5fa8f8fc1035fb6606312e882d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b73927da13337b9f227334d2f131b2a7d9aac5fa8f8fc1035fb6606312e882d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b73927da13337b9f227334d2f131b2a7d9aac5fa8f8fc1035fb6606312e882d", kill_on_drop: false }`
[INFO] [stdout] 7b73927da13337b9f227334d2f131b2a7d9aac5fa8f8fc1035fb6606312e882d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7e023159328e0e400c7197922b486b7b63e76b95d46b4702ee6efbe0b490ff1d
[INFO] running `Command { std: "docker" "start" "-a" "7e023159328e0e400c7197922b486b7b63e76b95d46b4702ee6efbe0b490ff1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking serde v1.0.94
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]  Documenting pngbomb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.01s
[INFO] running `Command { std: "docker" "inspect" "7e023159328e0e400c7197922b486b7b63e76b95d46b4702ee6efbe0b490ff1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e023159328e0e400c7197922b486b7b63e76b95d46b4702ee6efbe0b490ff1d", kill_on_drop: false }`
[INFO] [stdout] 7e023159328e0e400c7197922b486b7b63e76b95d46b4702ee6efbe0b490ff1d