[INFO] cloning repository https://github.com/divvun/derive-collect-docs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divvun/derive-collect-docs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivvun%2Fderive-collect-docs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivvun%2Fderive-collect-docs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8ca4647315cf85f142bdcfde8709e6dbbdecd6e
[INFO] documenting divvun/derive-collect-docs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivvun%2Fderive-collect-docs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divvun/derive-collect-docs on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/divvun/derive-collect-docs
[INFO] finished tweaking git repo https://github.com/divvun/derive-collect-docs
[INFO] tweaked toml for git repo https://github.com/divvun/derive-collect-docs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/divvun/derive-collect-docs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "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] a1d9fa3eb15db4fec22d2dc42020b1bd9dd36f58c6f4db52567632b84de802bd
[INFO] running `Command { std: "docker" "start" "-a" "a1d9fa3eb15db4fec22d2dc42020b1bd9dd36f58c6f4db52567632b84de802bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1d9fa3eb15db4fec22d2dc42020b1bd9dd36f58c6f4db52567632b84de802bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d9fa3eb15db4fec22d2dc42020b1bd9dd36f58c6f4db52567632b84de802bd", kill_on_drop: false }`
[INFO] [stdout] a1d9fa3eb15db4fec22d2dc42020b1bd9dd36f58c6f4db52567632b84de802bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "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] 83244aaf3f6e94a005acac0c2c75ca562008bb68554b1a448082e38d2eb332fb
[INFO] running `Command { std: "docker" "start" "-a" "83244aaf3f6e94a005acac0c2c75ca562008bb68554b1a448082e38d2eb332fb", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking unindent v0.1.5
[INFO] [stderr]     Checking proc-macro2 v1.0.9
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking syn v1.0.17
[INFO] [stderr]  Documenting derive-collect-docs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.01s
[INFO] running `Command { std: "docker" "inspect" "83244aaf3f6e94a005acac0c2c75ca562008bb68554b1a448082e38d2eb332fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83244aaf3f6e94a005acac0c2c75ca562008bb68554b1a448082e38d2eb332fb", kill_on_drop: false }`
[INFO] [stdout] 83244aaf3f6e94a005acac0c2c75ca562008bb68554b1a448082e38d2eb332fb