[INFO] cloning repository https://github.com/BranLiang/arithmetic-evaluator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BranLiang/arithmetic-evaluator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBranLiang%2Farithmetic-evaluator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBranLiang%2Farithmetic-evaluator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11395e0c540b0599773723daff49f42d487f2784
[INFO] documenting BranLiang/arithmetic-evaluator against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBranLiang%2Farithmetic-evaluator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BranLiang/arithmetic-evaluator on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BranLiang/arithmetic-evaluator
[INFO] finished tweaking git repo https://github.com/BranLiang/arithmetic-evaluator
[INFO] tweaked toml for git repo https://github.com/BranLiang/arithmetic-evaluator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/BranLiang/arithmetic-evaluator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 819d4c7e4b2f599e0a77c0f4dddd3df331874aeb7bd7d13b7ecf2cf214b4700f
[INFO] running `Command { std: "docker" "start" "-a" "819d4c7e4b2f599e0a77c0f4dddd3df331874aeb7bd7d13b7ecf2cf214b4700f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "819d4c7e4b2f599e0a77c0f4dddd3df331874aeb7bd7d13b7ecf2cf214b4700f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819d4c7e4b2f599e0a77c0f4dddd3df331874aeb7bd7d13b7ecf2cf214b4700f", kill_on_drop: false }`
[INFO] [stdout] 819d4c7e4b2f599e0a77c0f4dddd3df331874aeb7bd7d13b7ecf2cf214b4700f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47d3be1a46a8ba505cf8027b2b02e797ce7d9890bc7003be54feb1db82344ee2
[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" "47d3be1a46a8ba505cf8027b2b02e797ce7d9890bc7003be54feb1db82344ee2", kill_on_drop: false }`
[INFO] [stderr]  Documenting arithmetic-calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "47d3be1a46a8ba505cf8027b2b02e797ce7d9890bc7003be54feb1db82344ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47d3be1a46a8ba505cf8027b2b02e797ce7d9890bc7003be54feb1db82344ee2", kill_on_drop: false }`
[INFO] [stdout] 47d3be1a46a8ba505cf8027b2b02e797ce7d9890bc7003be54feb1db82344ee2