[INFO] cloning repository https://github.com/hadyelzayady/mini-brightness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hadyelzayady/mini-brightness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhadyelzayady%2Fmini-brightness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhadyelzayady%2Fmini-brightness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 342b436484c2dc12c1d624e49590bdff0c35c3a6
[INFO] checking hadyelzayady/mini-brightness against master#5337252b9952fdd9482ed6a4add17254e5bd2c40 for pr-138785
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhadyelzayady%2Fmini-brightness" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hadyelzayady/mini-brightness on toolchain 5337252b9952fdd9482ed6a4add17254e5bd2c40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hadyelzayady/mini-brightness
[INFO] finished tweaking git repo https://github.com/hadyelzayady/mini-brightness
[INFO] tweaked toml for git repo https://github.com/hadyelzayady/mini-brightness written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hadyelzayady/mini-brightness already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "fetch" "--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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efdeca3ee12adf8a5e2c1aab3f70956085c0549599f3aa9739b7730048e1ebe0
[INFO] running `Command { std: "docker" "start" "-a" "efdeca3ee12adf8a5e2c1aab3f70956085c0549599f3aa9739b7730048e1ebe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efdeca3ee12adf8a5e2c1aab3f70956085c0549599f3aa9739b7730048e1ebe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdeca3ee12adf8a5e2c1aab3f70956085c0549599f3aa9739b7730048e1ebe0", kill_on_drop: false }`
[INFO] [stdout] efdeca3ee12adf8a5e2c1aab3f70956085c0549599f3aa9739b7730048e1ebe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1231f878c90f4c2751ffe1c9c77c9d0ddab7e54f909baa73d70416fadb8d3d7
[INFO] running `Command { std: "docker" "start" "-a" "f1231f878c90f4c2751ffe1c9c77c9d0ddab7e54f909baa73d70416fadb8d3d7", kill_on_drop: false }`
[INFO] [stderr]     Checking mini-brightness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Command` is never used
[INFO] [stdout]  --> src/main.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Command {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Command` is never used
[INFO] [stdout]  --> src/main.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Command {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "f1231f878c90f4c2751ffe1c9c77c9d0ddab7e54f909baa73d70416fadb8d3d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1231f878c90f4c2751ffe1c9c77c9d0ddab7e54f909baa73d70416fadb8d3d7", kill_on_drop: false }`
[INFO] [stdout] f1231f878c90f4c2751ffe1c9c77c9d0ddab7e54f909baa73d70416fadb8d3d7