[INFO] cloning repository https://github.com/totem3/mackerel-plugin-tcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/totem3/mackerel-plugin-tcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftotem3%2Fmackerel-plugin-tcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftotem3%2Fmackerel-plugin-tcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f7ebaba4b4064229328838b0686bf69340e2dde
[INFO] documenting totem3/mackerel-plugin-tcp 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%2Ftotem3%2Fmackerel-plugin-tcp" "/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/totem3/mackerel-plugin-tcp 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/totem3/mackerel-plugin-tcp
[INFO] finished tweaking git repo https://github.com/totem3/mackerel-plugin-tcp
[INFO] tweaked toml for git repo https://github.com/totem3/mackerel-plugin-tcp written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/totem3/mackerel-plugin-tcp 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] [stderr]     Blocking waiting for file lock on package cache
[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" "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] [stdout] 06cb95e615e53b50f0829665281fc3b927849a805489682aaac4328cf2333bd7
[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" "06cb95e615e53b50f0829665281fc3b927849a805489682aaac4328cf2333bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06cb95e615e53b50f0829665281fc3b927849a805489682aaac4328cf2333bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06cb95e615e53b50f0829665281fc3b927849a805489682aaac4328cf2333bd7", kill_on_drop: false }`
[INFO] [stdout] 06cb95e615e53b50f0829665281fc3b927849a805489682aaac4328cf2333bd7
[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" "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] [stdout] fcd422027ef3ce22f98837f780f4b79de381ff3a57470707f60ed6f20aeaf135
[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" "fcd422027ef3ce22f98837f780f4b79de381ff3a57470707f60ed6f20aeaf135", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking mackerel_plugin v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]  Documenting mackerel-plugin-tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.75s
[INFO] running `Command { std: "docker" "inspect" "fcd422027ef3ce22f98837f780f4b79de381ff3a57470707f60ed6f20aeaf135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd422027ef3ce22f98837f780f4b79de381ff3a57470707f60ed6f20aeaf135", kill_on_drop: false }`
[INFO] [stdout] fcd422027ef3ce22f98837f780f4b79de381ff3a57470707f60ed6f20aeaf135