[INFO] fetching crate command-group 5.0.1...
[INFO] checking command-group-5.0.1 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate command-group 5.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate command-group 5.0.1 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate command-group 5.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate command-group 5.0.1
[INFO] tweaked toml for crates.io crate command-group 5.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate command-group 5.0.1 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" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c61f72f4c2dab7fb0be72092f7318a94d670551c1d0f7da47263fe274073dafb
[INFO] running `Command { std: "docker" "start" "-a" "c61f72f4c2dab7fb0be72092f7318a94d670551c1d0f7da47263fe274073dafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c61f72f4c2dab7fb0be72092f7318a94d670551c1d0f7da47263fe274073dafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61f72f4c2dab7fb0be72092f7318a94d670551c1d0f7da47263fe274073dafb", kill_on_drop: false }`
[INFO] [stdout] c61f72f4c2dab7fb0be72092f7318a94d670551c1d0f7da47263fe274073dafb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac20988f198be582c8cdc0720a53a4c8df8998ed7a1c3b34ce60a77b8705b11
[INFO] running `Command { std: "docker" "start" "-a" "3ac20988f198be582c8cdc0720a53a4c8df8998ed7a1c3b34ce60a77b8705b11", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking command-group v5.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `signal` is never used
[INFO] [stdout]    --> src/stdlib/child/unix.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub trait UnixChildExt {
[INFO] [stdout]     |           ------------ method in this trait
[INFO] [stdout] 208 |     fn signal(&self, sig: Signal) -> Result<()>;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stdout] warning: method `signal` is never used
[INFO] [stdout]    --> src/stdlib/child/unix.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub trait UnixChildExt {
[INFO] [stdout]     |           ------------ method in this trait
[INFO] [stdout] 208 |     fn signal(&self, sig: Signal) -> Result<()>;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.01s
[INFO] running `Command { std: "docker" "inspect" "3ac20988f198be582c8cdc0720a53a4c8df8998ed7a1c3b34ce60a77b8705b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac20988f198be582c8cdc0720a53a4c8df8998ed7a1c3b34ce60a77b8705b11", kill_on_drop: false }`
[INFO] [stdout] 3ac20988f198be582c8cdc0720a53a4c8df8998ed7a1c3b34ce60a77b8705b11