[INFO] fetching crate i3-workspace-brightness 1.0.2...
[INFO] checking i3-workspace-brightness-1.0.2 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate i3-workspace-brightness 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate i3-workspace-brightness 1.0.2 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i3-workspace-brightness 1.0.2
[INFO] finished tweaking crates.io crate i3-workspace-brightness 1.0.2
[INFO] tweaked toml for crates.io crate i3-workspace-brightness 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate i3-workspace-brightness 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12a566fd6de835ef58c7d9fb9cd7f461c0a761ad60bbcdae23520b3eb0b4b43b
[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" "12a566fd6de835ef58c7d9fb9cd7f461c0a761ad60bbcdae23520b3eb0b4b43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12a566fd6de835ef58c7d9fb9cd7f461c0a761ad60bbcdae23520b3eb0b4b43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a566fd6de835ef58c7d9fb9cd7f461c0a761ad60bbcdae23520b3eb0b4b43b", kill_on_drop: false }`
[INFO] [stdout] 12a566fd6de835ef58c7d9fb9cd7f461c0a761ad60bbcdae23520b3eb0b4b43b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9a8b543ed8639a4c0822683778e6158ee2f180728ae2fa6957df9cfea867618
[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" "b9a8b543ed8639a4c0822683778e6158ee2f180728ae2fa6957df9cfea867618", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking i3ipc v0.10.1
[INFO] [stderr]     Checking i3-workspace-brightness v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.69s
[INFO] running `Command { std: "docker" "inspect" "b9a8b543ed8639a4c0822683778e6158ee2f180728ae2fa6957df9cfea867618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a8b543ed8639a4c0822683778e6158ee2f180728ae2fa6957df9cfea867618", kill_on_drop: false }`
[INFO] [stdout] b9a8b543ed8639a4c0822683778e6158ee2f180728ae2fa6957df9cfea867618