[INFO] fetching crate kukan 0.1.2...
[INFO] checking kukan-0.1.2 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate kukan 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate kukan 0.1.2 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kukan 0.1.2
[INFO] finished tweaking crates.io crate kukan 0.1.2
[INFO] tweaked toml for crates.io crate kukan 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7118d9c4148bcadfc8ed4f79e68c0d0d72aefb1d5fdf5d568c9813b696b58a4d
[INFO] running `Command { std: "docker" "start" "-a" "7118d9c4148bcadfc8ed4f79e68c0d0d72aefb1d5fdf5d568c9813b696b58a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7118d9c4148bcadfc8ed4f79e68c0d0d72aefb1d5fdf5d568c9813b696b58a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7118d9c4148bcadfc8ed4f79e68c0d0d72aefb1d5fdf5d568c9813b696b58a4d", kill_on_drop: false }`
[INFO] [stdout] 7118d9c4148bcadfc8ed4f79e68c0d0d72aefb1d5fdf5d568c9813b696b58a4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa4b6df567a5aabfb583b47c89fce5a86480622b82f7c85d7edba51ed274b0cd
[INFO] running `Command { std: "docker" "start" "-a" "fa4b6df567a5aabfb583b47c89fce5a86480622b82f7c85d7edba51ed274b0cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking kukan v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ClosestValue` is never used
[INFO] [stdout]  --> src/closest.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ClosestValue<T>: Contain<T>
[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] [stdout] warning: trait `ClosestValue` is never used
[INFO] [stdout]  --> src/closest.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ClosestValue<T>: Contain<T>
[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 2.00s
[INFO] running `Command { std: "docker" "inspect" "fa4b6df567a5aabfb583b47c89fce5a86480622b82f7c85d7edba51ed274b0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4b6df567a5aabfb583b47c89fce5a86480622b82f7c85d7edba51ed274b0cd", kill_on_drop: false }`
[INFO] [stdout] fa4b6df567a5aabfb583b47c89fce5a86480622b82f7c85d7edba51ed274b0cd