[INFO] fetching crate cayley 0.2.0...
[INFO] checking cayley-0.2.0 against master#656ccbe796ff98def9b555c118e1620c5389e3b2 for pr-133502-24
[INFO] extracting crate cayley 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cayley 0.2.0
[INFO] finished tweaking crates.io crate cayley 0.2.0
[INFO] tweaked toml for crates.io crate cayley 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cayley 0.2.0 on toolchain 656ccbe796ff98def9b555c118e1620c5389e3b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5
[INFO] running `Command { std: "docker" "start" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5" "/opt/rustwide/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5" "/opt/rustwide/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking cayley v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m1`
[INFO] [stdout]    --> src/tests.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let m1: Matrix<i32, 2, 3> = Matrix::from(vec![vec![1, 2, 3], vec![4, 5, 6]]);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_m1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m2`
[INFO] [stdout]    --> src/tests.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let m2: Matrix<i32, 2, 2> = Matrix::from(vec![vec![1, 2], vec![3, 4]]);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_m2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5", kill_on_drop: false }`
[INFO] [stdout] 772ca58a83437250a39e570dd9c9634e49c92fcd344a8f95848eaeb81089b9d5
