[INFO] cloning repository https://github.com/rnitta/rust-cmark-examine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rnitta/rust-cmark-examine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frnitta%2Frust-cmark-examine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frnitta%2Frust-cmark-examine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78dd1b2d9343b826760fc379222dbd22c5a07716
[INFO] documenting rnitta/rust-cmark-examine 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%2Frnitta%2Frust-cmark-examine" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rnitta/rust-cmark-examine 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/rnitta/rust-cmark-examine
[INFO] finished tweaking git repo https://github.com/rnitta/rust-cmark-examine
[INFO] tweaked toml for git repo https://github.com/rnitta/rust-cmark-examine written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/rnitta/rust-cmark-examine 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c44e3a3d32e3abf5d4a72c3f795ade0061f8c4694b33aa80c3ff5ad5872d0faa
[INFO] running `Command { std: "docker" "start" "-a" "c44e3a3d32e3abf5d4a72c3f795ade0061f8c4694b33aa80c3ff5ad5872d0faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c44e3a3d32e3abf5d4a72c3f795ade0061f8c4694b33aa80c3ff5ad5872d0faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44e3a3d32e3abf5d4a72c3f795ade0061f8c4694b33aa80c3ff5ad5872d0faa", kill_on_drop: false }`
[INFO] [stdout] c44e3a3d32e3abf5d4a72c3f795ade0061f8c4694b33aa80c3ff5ad5872d0faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 96e40aa5f09066bb330b1330e285725708abcf23261fc04ee918250086d47327
[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" "96e40aa5f09066bb330b1330e285725708abcf23261fc04ee918250086d47327", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling pulldown-cmark v0.5.2
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]  Documenting cmark-spec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.27s
[INFO] running `Command { std: "docker" "inspect" "96e40aa5f09066bb330b1330e285725708abcf23261fc04ee918250086d47327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e40aa5f09066bb330b1330e285725708abcf23261fc04ee918250086d47327", kill_on_drop: false }`
[INFO] [stdout] 96e40aa5f09066bb330b1330e285725708abcf23261fc04ee918250086d47327