[INFO] cloning repository https://github.com/Higunio320/MatrixMultiplication
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Higunio320/MatrixMultiplication" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHigunio320%2FMatrixMultiplication", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHigunio320%2FMatrixMultiplication'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1928abf4215c7f72a8e8cbb8daf4f2d0f17bacf5
[INFO] checking Higunio320/MatrixMultiplication against f1c52bf13c990fc425c542cc90a0396a87db24ba for pr-164812
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHigunio320%2FMatrixMultiplication" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Higunio320/MatrixMultiplication
[INFO] finished tweaking git repo https://github.com/Higunio320/MatrixMultiplication
[INFO] tweaked toml for git repo https://github.com/Higunio320/MatrixMultiplication written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Higunio320/MatrixMultiplication on toolchain f1c52bf13c990fc425c542cc90a0396a87db24ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f1c52bf13c990fc425c542cc90a0396a87db24ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Higunio320/MatrixMultiplication 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" "+f1c52bf13c990fc425c542cc90a0396a87db24ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2
[INFO] running `Command { std: "docker" "start" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2", 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" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2" "/opt/rustwide/cargo-home/bin/cargo" "+f1c52bf13c990fc425c542cc90a0396a87db24ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2", 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" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2" "/opt/rustwide/cargo-home/bin/cargo" "+f1c52bf13c990fc425c542cc90a0396a87db24ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.1
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.1
[INFO] [stderr]     Checking rand v0.9.0-alpha.1
[INFO] [stderr]     Checking mm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `gen_random` is never used
[INFO] [stdout]   --> src/matrix.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Matrix<f32> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn gen_random(rows: usize, columns: usize, min_val: f32, max_val: f32) -> Result<Matrix<f32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_vec` is never used
[INFO] [stdout]    --> src/matrix.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout]  92 | impl<T: FromStr> Matrix<T> {
[INFO] [stdout]     | -------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn from_vec(vector: Vec<&str>) -> Result<Matrix<T>, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2", kill_on_drop: false }`
[INFO] [stdout] 92e2528dad10ccbb3f921c938162bf6042bcf7b5fbd46048ba491512eb3963b2
