[INFO] updating cached repository https://github.com/untilyoumakeit/mqtt_sensor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be0c3ff451b76fb146c2955e80cf5e2fc553cd7c
[INFO] documenting untilyoumakeit/mqtt_sensor against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtilyoumakeit%2Fmqtt_sensor" "/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/untilyoumakeit/mqtt_sensor on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/untilyoumakeit/mqtt_sensor
[INFO] finished tweaking git repo https://github.com/untilyoumakeit/mqtt_sensor
[INFO] tweaked toml for git repo https://github.com/untilyoumakeit/mqtt_sensor written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/untilyoumakeit/mqtt_sensor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffbad550fd6b9fbb369d44d47093b9eee27f5a91cdf3fab75bbb82833d15bc0a
[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" "ffbad550fd6b9fbb369d44d47093b9eee27f5a91cdf3fab75bbb82833d15bc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffbad550fd6b9fbb369d44d47093b9eee27f5a91cdf3fab75bbb82833d15bc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbad550fd6b9fbb369d44d47093b9eee27f5a91cdf3fab75bbb82833d15bc0a", kill_on_drop: false }`
[INFO] [stdout] ffbad550fd6b9fbb369d44d47093b9eee27f5a91cdf3fab75bbb82833d15bc0a
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7d21dc420b7d1d4b7198ba308fb5655c2e9cc53e4f077f9bac372943f8b3e25
[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" "c7d21dc420b7d1d4b7198ba308fb5655c2e9cc53e4f077f9bac372943f8b3e25", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling mqtt_sensors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking json v0.12.1
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling sys-info v0.5.8
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling paho-mqtt-sys v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking syncbox v0.2.4
[INFO] [stderr]     Checking futures-timer v0.1.1
[INFO] [stderr]     Checking eventual v0.1.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking paho-mqtt v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]  Documenting mqtt_sensors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.80s
[INFO] running `Command { std: "docker" "inspect" "c7d21dc420b7d1d4b7198ba308fb5655c2e9cc53e4f077f9bac372943f8b3e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d21dc420b7d1d4b7198ba308fb5655c2e9cc53e4f077f9bac372943f8b3e25", kill_on_drop: false }`
[INFO] [stdout] c7d21dc420b7d1d4b7198ba308fb5655c2e9cc53e4f077f9bac372943f8b3e25