[INFO] cloning repository https://github.com/dandelion-blanc/practice05_ndarray [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dandelion-blanc/practice05_ndarray" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice05_ndarray", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice05_ndarray'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab1a3d7aeeefe9e5b51f7b72d7adbb01ebc86e8b [INFO] testing dandelion-blanc/practice05_ndarray against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice05_ndarray" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dandelion-blanc/practice05_ndarray on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dandelion-blanc/practice05_ndarray [INFO] finished tweaking git repo https://github.com/dandelion-blanc/practice05_ndarray [INFO] tweaked toml for git repo https://github.com/dandelion-blanc/practice05_ndarray written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dandelion-blanc/practice05_ndarray 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ndarray v0.13.1 [INFO] [stderr] Downloaded matrixmultiply v0.2.3 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 58078c68f51730b44f7c22f2c32a5312cbc3d1a24c345f04426e9e6a502a4204 [INFO] running `Command { std: "docker" "start" "-a" "58078c68f51730b44f7c22f2c32a5312cbc3d1a24c345f04426e9e6a502a4204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "58078c68f51730b44f7c22f2c32a5312cbc3d1a24c345f04426e9e6a502a4204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58078c68f51730b44f7c22f2c32a5312cbc3d1a24c345f04426e9e6a502a4204", kill_on_drop: false }` [INFO] [stdout] 58078c68f51730b44f7c22f2c32a5312cbc3d1a24c345f04426e9e6a502a4204 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6eb4744da61588bbac3d786f18563e0ae2916441d409899a2178470014fc0691 [INFO] running `Command { std: "docker" "start" "-a" "6eb4744da61588bbac3d786f18563e0ae2916441d409899a2178470014fc0691", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling serde v1.0.115 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling matrixmultiply v0.2.3 [INFO] [stderr] Compiling practice05_ndarray v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:47:6 [INFO] [stdout] | [INFO] [stdout] 47 | let mut matrix1 = Array::::from_elem( (4, 4), 2.0); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.38s [INFO] running `Command { std: "docker" "inspect" "6eb4744da61588bbac3d786f18563e0ae2916441d409899a2178470014fc0691", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6eb4744da61588bbac3d786f18563e0ae2916441d409899a2178470014fc0691", kill_on_drop: false }` [INFO] [stdout] 6eb4744da61588bbac3d786f18563e0ae2916441d409899a2178470014fc0691 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59f218ee02de4105b06839a0693c66e0f8456c6f85bdd134e85ea1159f258d2c [INFO] running `Command { std: "docker" "start" "-a" "59f218ee02de4105b06839a0693c66e0f8456c6f85bdd134e85ea1159f258d2c", kill_on_drop: false }` [INFO] [stderr] Compiling practice05_ndarray v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:47:6 [INFO] [stdout] | [INFO] [stdout] 47 | let mut matrix1 = Array::::from_elem( (4, 4), 2.0); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "59f218ee02de4105b06839a0693c66e0f8456c6f85bdd134e85ea1159f258d2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59f218ee02de4105b06839a0693c66e0f8456c6f85bdd134e85ea1159f258d2c", kill_on_drop: false }` [INFO] [stdout] 59f218ee02de4105b06839a0693c66e0f8456c6f85bdd134e85ea1159f258d2c [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 379b1f10df588e413e24feecf2aaf5958a87344575cfde0fc172065418399673 [INFO] running `Command { std: "docker" "start" "-a" "379b1f10df588e413e24feecf2aaf5958a87344575cfde0fc172065418399673", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:47:6 [INFO] [stderr] | [INFO] [stderr] 47 | let mut matrix1 = Array::::from_elem( (4, 4), 2.0); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `practice05_ndarray` (bin "practice05_ndarray" test) generated 1 warning (run `cargo fix --bin "practice05_ndarray" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/practice05_ndarray-c86c552e09d957f5) [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" "379b1f10df588e413e24feecf2aaf5958a87344575cfde0fc172065418399673", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "379b1f10df588e413e24feecf2aaf5958a87344575cfde0fc172065418399673", kill_on_drop: false }` [INFO] [stdout] 379b1f10df588e413e24feecf2aaf5958a87344575cfde0fc172065418399673