[INFO] cloning repository https://github.com/floppyhammer/ndarray-lu-direct-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/floppyhammer/ndarray-lu-direct-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloppyhammer%2Fndarray-lu-direct-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloppyhammer%2Fndarray-lu-direct-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f064c6012101c1cc32f8ef4418807b11b02587b4
[INFO] testing floppyhammer/ndarray-lu-direct-solver against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloppyhammer%2Fndarray-lu-direct-solver" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/floppyhammer/ndarray-lu-direct-solver on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/floppyhammer/ndarray-lu-direct-solver
[INFO] finished tweaking git repo https://github.com/floppyhammer/ndarray-lu-direct-solver
[INFO] tweaked toml for git repo https://github.com/floppyhammer/ndarray-lu-direct-solver written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/floppyhammer/ndarray-lu-direct-solver 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.15.1
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70c13101def39715aaaf4042a2c28ba86104c3367373d69318eb02708474ffb8
[INFO] running `Command { std: "docker" "start" "-a" "70c13101def39715aaaf4042a2c28ba86104c3367373d69318eb02708474ffb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70c13101def39715aaaf4042a2c28ba86104c3367373d69318eb02708474ffb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70c13101def39715aaaf4042a2c28ba86104c3367373d69318eb02708474ffb8", kill_on_drop: false }`
[INFO] [stdout] 70c13101def39715aaaf4042a2c28ba86104c3367373d69318eb02708474ffb8
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f211b1a2191d0fbc77612652f0eea7b834db34baa8f5edc6fad5887b53e60e24
[INFO] running `Command { std: "docker" "start" "-a" "f211b1a2191d0fbc77612652f0eea7b834db34baa8f5edc6fad5887b53e60e24", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling ndarray v0.15.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling ndarray-lu-direct-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `display_array` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn display_array(array: &Array2<f64>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.60s
[INFO] running `Command { std: "docker" "inspect" "f211b1a2191d0fbc77612652f0eea7b834db34baa8f5edc6fad5887b53e60e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f211b1a2191d0fbc77612652f0eea7b834db34baa8f5edc6fad5887b53e60e24", kill_on_drop: false }`
[INFO] [stdout] f211b1a2191d0fbc77612652f0eea7b834db34baa8f5edc6fad5887b53e60e24
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1db872374865823923ce640db4bbea7c54c0f7ac79db06be237a3bed81a7e3bf
[INFO] running `Command { std: "docker" "start" "-a" "1db872374865823923ce640db4bbea7c54c0f7ac79db06be237a3bed81a7e3bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray-lu-direct-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `display_array` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn display_array(array: &Array2<f64>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "1db872374865823923ce640db4bbea7c54c0f7ac79db06be237a3bed81a7e3bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db872374865823923ce640db4bbea7c54c0f7ac79db06be237a3bed81a7e3bf", kill_on_drop: false }`
[INFO] [stdout] 1db872374865823923ce640db4bbea7c54c0f7ac79db06be237a3bed81a7e3bf
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 319d77f1923034bfb82614e081c43a1d7d9da910d6be6a717dc0115757d66a22
[INFO] running `Command { std: "docker" "start" "-a" "319d77f1923034bfb82614e081c43a1d7d9da910d6be6a717dc0115757d66a22", kill_on_drop: false }`
[INFO] [stderr] warning: function `display_array` is never used
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn display_array(array: &Array2<f64>) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ndarray-lu-direct-solver` (bin "ndarray-lu-direct-solver" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ndarray_lu_direct_solver-a99782f9de38eefa)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "319d77f1923034bfb82614e081c43a1d7d9da910d6be6a717dc0115757d66a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319d77f1923034bfb82614e081c43a1d7d9da910d6be6a717dc0115757d66a22", kill_on_drop: false }`
[INFO] [stdout] 319d77f1923034bfb82614e081c43a1d7d9da910d6be6a717dc0115757d66a22