[INFO] fetching crate axb 0.1.4...
[INFO] checking axb-0.1.4 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate axb 0.1.4 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate axb 0.1.4 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate axb 0.1.4
[INFO] finished tweaking crates.io crate axb 0.1.4
[INFO] tweaked toml for crates.io crate axb 0.1.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate axb 0.1.4 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" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb0819285210c6e4fbb748e0afec6aab72204c6b9721644ad4067ab261cc6364
[INFO] running `Command { std: "docker" "start" "-a" "fb0819285210c6e4fbb748e0afec6aab72204c6b9721644ad4067ab261cc6364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb0819285210c6e4fbb748e0afec6aab72204c6b9721644ad4067ab261cc6364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0819285210c6e4fbb748e0afec6aab72204c6b9721644ad4067ab261cc6364", kill_on_drop: false }`
[INFO] [stdout] fb0819285210c6e4fbb748e0afec6aab72204c6b9721644ad4067ab261cc6364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4673bb188fc53630a82561216c06ba2807e35157277be4c5777d4263235464cc
[INFO] running `Command { std: "docker" "start" "-a" "4673bb188fc53630a82561216c06ba2807e35157277be4c5777d4263235464cc", kill_on_drop: false }`
[INFO] [stderr]     Checking axb v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `non_square_matrix_error` is never used
[INFO] [stdout]  --> src/matrix/errors.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn non_square_matrix_error(r: &usize, c: &usize) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `non_square_matrix_error` is never used
[INFO] [stdout]  --> src/matrix/errors.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn non_square_matrix_error(r: &usize, c: &usize) {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "4673bb188fc53630a82561216c06ba2807e35157277be4c5777d4263235464cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4673bb188fc53630a82561216c06ba2807e35157277be4c5777d4263235464cc", kill_on_drop: false }`
[INFO] [stdout] 4673bb188fc53630a82561216c06ba2807e35157277be4c5777d4263235464cc
