[INFO] cloning repository https://github.com/luluci/cpu_usage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luluci/cpu_usage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluci%2Fcpu_usage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluci%2Fcpu_usage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b39261deca9ff5056f93a25c4527f604f37669b6
[INFO] documenting luluci/cpu_usage against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluci%2Fcpu_usage" "/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/luluci/cpu_usage on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luluci/cpu_usage
[INFO] finished tweaking git repo https://github.com/luluci/cpu_usage
[INFO] tweaked toml for git repo https://github.com/luluci/cpu_usage written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/luluci/cpu_usage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39e90bad88f027157e6c1b8d00395482a55c1c439b96ca4245e7beb7b5ffac63
[INFO] running `Command { std: "docker" "start" "-a" "39e90bad88f027157e6c1b8d00395482a55c1c439b96ca4245e7beb7b5ffac63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39e90bad88f027157e6c1b8d00395482a55c1c439b96ca4245e7beb7b5ffac63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e90bad88f027157e6c1b8d00395482a55c1c439b96ca4245e7beb7b5ffac63", kill_on_drop: false }`
[INFO] [stdout] 39e90bad88f027157e6c1b8d00395482a55c1c439b96ca4245e7beb7b5ffac63
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee7691789b9e1c264866bcc31ca7d622d8cadd0a9c60f0b462c3dea3e4f21f70
[INFO] running `Command { std: "docker" "start" "-a" "ee7691789b9e1c264866bcc31ca7d622d8cadd0a9c60f0b462c3dea3e4f21f70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]  Documenting cpu_usage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.46s
[INFO] running `Command { std: "docker" "inspect" "ee7691789b9e1c264866bcc31ca7d622d8cadd0a9c60f0b462c3dea3e4f21f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee7691789b9e1c264866bcc31ca7d622d8cadd0a9c60f0b462c3dea3e4f21f70", kill_on_drop: false }`
[INFO] [stdout] ee7691789b9e1c264866bcc31ca7d622d8cadd0a9c60f0b462c3dea3e4f21f70
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 4dcd20a98f9ec475d50857a560f40f9d55e1410cc78119d7d2ce6bdf9ebdaf2c
[INFO] running `Command { std: "docker" "start" "-a" "4dcd20a98f9ec475d50857a560f40f9d55e1410cc78119d7d2ce6bdf9ebdaf2c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]  Documenting cpu_usage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 29s
[INFO] running `Command { std: "docker" "inspect" "4dcd20a98f9ec475d50857a560f40f9d55e1410cc78119d7d2ce6bdf9ebdaf2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcd20a98f9ec475d50857a560f40f9d55e1410cc78119d7d2ce6bdf9ebdaf2c", kill_on_drop: false }`
[INFO] [stdout] 4dcd20a98f9ec475d50857a560f40f9d55e1410cc78119d7d2ce6bdf9ebdaf2c