[INFO] fetching crate cayley 0.2.0...
[INFO] checking cayley-0.2.0 against master#42b384ec0dfcd528d99a4db0a337d9188a9eecaa for pr-133502-16
[INFO] extracting crate cayley 0.2.0 into /workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cayley 0.2.0 on toolchain 42b384ec0dfcd528d99a4db0a337d9188a9eecaa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42b384ec0dfcd528d99a4db0a337d9188a9eecaa" "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" "+42b384ec0dfcd528d99a4db0a337d9188a9eecaa" "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" "+42b384ec0dfcd528d99a4db0a337d9188a9eecaa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+42b384ec0dfcd528d99a4db0a337d9188a9eecaa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed42b0b96bb2ab39e2daebb32696829adf6b4d56f760bdee8b0aee292cb86c10
[INFO] running `Command { std: "docker" "start" "-a" "ed42b0b96bb2ab39e2daebb32696829adf6b4d56f760bdee8b0aee292cb86c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed42b0b96bb2ab39e2daebb32696829adf6b4d56f760bdee8b0aee292cb86c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed42b0b96bb2ab39e2daebb32696829adf6b4d56f760bdee8b0aee292cb86c10", kill_on_drop: false }`
[INFO] [stdout] ed42b0b96bb2ab39e2daebb32696829adf6b4d56f760bdee8b0aee292cb86c10
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+42b384ec0dfcd528d99a4db0a337d9188a9eecaa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c16e141694710a3b2c887577038feb03055552d8c7eb96891008e8b412fa816f
[INFO] running `Command { std: "docker" "start" "-a" "c16e141694710a3b2c887577038feb03055552d8c7eb96891008e8b412fa816f", 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 1.86s
[INFO] running `Command { std: "docker" "inspect" "c16e141694710a3b2c887577038feb03055552d8c7eb96891008e8b412fa816f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c16e141694710a3b2c887577038feb03055552d8c7eb96891008e8b412fa816f", kill_on_drop: false }`
[INFO] [stdout] c16e141694710a3b2c887577038feb03055552d8c7eb96891008e8b412fa816f