[INFO] cloning repository https://github.com/srithon/BrightnessControl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/srithon/BrightnessControl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrithon%2FBrightnessControl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrithon%2FBrightnessControl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9140f42cf6b55828d056f7ae4bcc2eef37887223
[INFO] documenting srithon/BrightnessControl 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%2Fsrithon%2FBrightnessControl" "/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/srithon/BrightnessControl 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/srithon/BrightnessControl
[INFO] finished tweaking git repo https://github.com/srithon/BrightnessControl
[INFO] tweaked toml for git repo https://github.com/srithon/BrightnessControl written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/srithon/BrightnessControl 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 bincode v1.3.1
[INFO] [stderr]   Downloaded spin_sleep v1.0.0
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded signal-hook v0.1.16
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 638c36e1a829383e536eafceef021a74635ef53440363f6cee251d3e19acfdaa
[INFO] running `Command { std: "docker" "start" "-a" "638c36e1a829383e536eafceef021a74635ef53440363f6cee251d3e19acfdaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "638c36e1a829383e536eafceef021a74635ef53440363f6cee251d3e19acfdaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638c36e1a829383e536eafceef021a74635ef53440363f6cee251d3e19acfdaa", kill_on_drop: false }`
[INFO] [stdout] 638c36e1a829383e536eafceef021a74635ef53440363f6cee251d3e19acfdaa
[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] 0bcf322e528be40ba85007525200ad4261c861569587ce6050e8b52f636c8990
[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" "0bcf322e528be40ba85007525200ad4261c861569587ce6050e8b52f636c8990", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]  Documenting brightness_control v1.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.37s
[INFO] running `Command { std: "docker" "inspect" "0bcf322e528be40ba85007525200ad4261c861569587ce6050e8b52f636c8990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcf322e528be40ba85007525200ad4261c861569587ce6050e8b52f636c8990", kill_on_drop: false }`
[INFO] [stdout] 0bcf322e528be40ba85007525200ad4261c861569587ce6050e8b52f636c8990