[INFO] fetching crate axb 0.1.4...
[INFO] checking axb-0.1.4 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate axb 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate axb 0.1.4 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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-tc1/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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 391cb4335046de55156d80043af0159e40372e0ac42aefe755996eee4e865cb2
[INFO] running `Command { std: "docker" "start" "-a" "391cb4335046de55156d80043af0159e40372e0ac42aefe755996eee4e865cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "391cb4335046de55156d80043af0159e40372e0ac42aefe755996eee4e865cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391cb4335046de55156d80043af0159e40372e0ac42aefe755996eee4e865cb2", kill_on_drop: false }`
[INFO] [stdout] 391cb4335046de55156d80043af0159e40372e0ac42aefe755996eee4e865cb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1c7b3ce6cb91b1f85e003436bf1525c9871db6db2dc22d9e209903dbbee4401
[INFO] running `Command { std: "docker" "start" "-a" "e1c7b3ce6cb91b1f85e003436bf1525c9871db6db2dc22d9e209903dbbee4401", 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` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "e1c7b3ce6cb91b1f85e003436bf1525c9871db6db2dc22d9e209903dbbee4401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c7b3ce6cb91b1f85e003436bf1525c9871db6db2dc22d9e209903dbbee4401", kill_on_drop: false }`
[INFO] [stdout] e1c7b3ce6cb91b1f85e003436bf1525c9871db6db2dc22d9e209903dbbee4401
