[INFO] cloning repository https://github.com/1vn/wifi_doorbell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1vn/wifi_doorbell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1vn%2Fwifi_doorbell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1vn%2Fwifi_doorbell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cfdb1807e0fdd916123b8ff0548bb76470b7631
[INFO] documenting 1vn/wifi_doorbell 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%2F1vn%2Fwifi_doorbell" "/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/1vn/wifi_doorbell 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/1vn/wifi_doorbell
[INFO] finished tweaking git repo https://github.com/1vn/wifi_doorbell
[INFO] tweaked toml for git repo https://github.com/1vn/wifi_doorbell written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/1vn/wifi_doorbell 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ears v0.3.5
[INFO] [stderr]   Downloaded libc v0.2.19
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4047a640e5bd8bd1055f7ae3f532c9b8712754f0e821e9965952c5e5e8a061c8
[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" "4047a640e5bd8bd1055f7ae3f532c9b8712754f0e821e9965952c5e5e8a061c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4047a640e5bd8bd1055f7ae3f532c9b8712754f0e821e9965952c5e5e8a061c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4047a640e5bd8bd1055f7ae3f532c9b8712754f0e821e9965952c5e5e8a061c8", kill_on_drop: false }`
[INFO] [stdout] 4047a640e5bd8bd1055f7ae3f532c9b8712754f0e821e9965952c5e5e8a061c8
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ead6b38195a7c8c73ab0eed9679258a6639af8f82b23afb0bbe4d355de6a4bc
[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" "5ead6b38195a7c8c73ab0eed9679258a6639af8f82b23afb0bbe4d355de6a4bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ears v0.3.5
[INFO] [stderr]     Checking libc v0.2.19
[INFO] [stderr]  Documenting wifi_doorbell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "5ead6b38195a7c8c73ab0eed9679258a6639af8f82b23afb0bbe4d355de6a4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ead6b38195a7c8c73ab0eed9679258a6639af8f82b23afb0bbe4d355de6a4bc", kill_on_drop: false }`
[INFO] [stdout] 5ead6b38195a7c8c73ab0eed9679258a6639af8f82b23afb0bbe4d355de6a4bc