[INFO] cloning repository https://github.com/waarrk/rust_fourier_transform
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/waarrk/rust_fourier_transform" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaarrk%2Frust_fourier_transform", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaarrk%2Frust_fourier_transform'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be1e46c05f1eedf36a5d4bad6a57431c8f0c0b53
[INFO] checking waarrk/rust_fourier_transform against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaarrk%2Frust_fourier_transform" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/waarrk/rust_fourier_transform
[INFO] finished tweaking git repo https://github.com/waarrk/rust_fourier_transform
[INFO] tweaked toml for git repo https://github.com/waarrk/rust_fourier_transform written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/waarrk/rust_fourier_transform on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/waarrk/rust_fourier_transform 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.4.2
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded ryu v1.0.12
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded ndarray v0.15.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4afbd41182834c68a95c0078ae64f65a80de6407310136b77baa398d5b28f340
[INFO] running `Command { std: "docker" "start" "-a" "4afbd41182834c68a95c0078ae64f65a80de6407310136b77baa398d5b28f340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4afbd41182834c68a95c0078ae64f65a80de6407310136b77baa398d5b28f340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4afbd41182834c68a95c0078ae64f65a80de6407310136b77baa398d5b28f340", kill_on_drop: false }`
[INFO] [stdout] 4afbd41182834c68a95c0078ae64f65a80de6407310136b77baa398d5b28f340
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f228dbef8d60ff6f5f91cdbc98c2e289980e5d6557e0a8e880bbae89c69f8522
[INFO] running `Command { std: "docker" "start" "-a" "f228dbef8d60ff6f5f91cdbc98c2e289980e5d6557e0a8e880bbae89c69f8522", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rust_fourier_transform v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `matrix` is never read
[INFO] [stdout]   --> src/main.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut matrix: ndarray::Array2<f64> = ndarray::Array2::zeros((0, 0));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `matrix` is never read
[INFO] [stdout]   --> src/main.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut matrix: ndarray::Array2<f64> = ndarray::Array2::zeros((0, 0));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "f228dbef8d60ff6f5f91cdbc98c2e289980e5d6557e0a8e880bbae89c69f8522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f228dbef8d60ff6f5f91cdbc98c2e289980e5d6557e0a8e880bbae89c69f8522", kill_on_drop: false }`
[INFO] [stdout] f228dbef8d60ff6f5f91cdbc98c2e289980e5d6557e0a8e880bbae89c69f8522
