[INFO] fetching crate matrix-simp 0.3.0...
[INFO] testing matrix-simp-0.3.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate matrix-simp 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate matrix-simp 0.3.0
[INFO] finished tweaking crates.io crate matrix-simp 0.3.0
[INFO] tweaked toml for crates.io crate matrix-simp 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix-simp 0.3.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f27c6c265ad70a5edc135caa465afbfb1391dd208ef8513f1eef1b1f1dde7d30
[INFO] running `Command { std: "docker" "start" "-a" "f27c6c265ad70a5edc135caa465afbfb1391dd208ef8513f1eef1b1f1dde7d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f27c6c265ad70a5edc135caa465afbfb1391dd208ef8513f1eef1b1f1dde7d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f27c6c265ad70a5edc135caa465afbfb1391dd208ef8513f1eef1b1f1dde7d30", kill_on_drop: false }`
[INFO] [stdout] f27c6c265ad70a5edc135caa465afbfb1391dd208ef8513f1eef1b1f1dde7d30
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a110f9575dcd81b9388bc0ac7fe7e9677e0fd97962244cc5370de6b707620c0
[INFO] running `Command { std: "docker" "start" "-a" "9a110f9575dcd81b9388bc0ac7fe7e9677e0fd97962244cc5370de6b707620c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrix-simp v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "9a110f9575dcd81b9388bc0ac7fe7e9677e0fd97962244cc5370de6b707620c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a110f9575dcd81b9388bc0ac7fe7e9677e0fd97962244cc5370de6b707620c0", kill_on_drop: false }`
[INFO] [stdout] 9a110f9575dcd81b9388bc0ac7fe7e9677e0fd97962244cc5370de6b707620c0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d43634eaf625ca63e861babfcb75972094f8b6f5ff0a77057c251f979a3ca75
[INFO] running `Command { std: "docker" "start" "-a" "1d43634eaf625ca63e861babfcb75972094f8b6f5ff0a77057c251f979a3ca75", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrix-simp v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:422:13
[INFO] [stdout]     |
[INFO] [stdout] 422 |         let mut mat1: Matrix<f32> = Matrix::from(data1);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "1d43634eaf625ca63e861babfcb75972094f8b6f5ff0a77057c251f979a3ca75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d43634eaf625ca63e861babfcb75972094f8b6f5ff0a77057c251f979a3ca75", kill_on_drop: false }`
[INFO] [stdout] 1d43634eaf625ca63e861babfcb75972094f8b6f5ff0a77057c251f979a3ca75
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7be3be7da435d56ccf1ca02dd58e88339504f560897007b76e9cf3784244b25a
[INFO] running `Command { std: "docker" "start" "-a" "7be3be7da435d56ccf1ca02dd58e88339504f560897007b76e9cf3784244b25a", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:422:13
[INFO] [stderr]     |
[INFO] [stderr] 422 |         let mut mat1: Matrix<f32> = Matrix::from(data1);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `matrix-simp` (lib test) generated 1 warning (run `cargo fix --lib -p matrix-simp --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matrix_simp-4b682ee640dd1ac3)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::init_zeroes ... ok
[INFO] [stdout] test tests::test_div_scalar ... ok
[INFO] [stdout] test tests::test_from_2d_slice ... ok
[INFO] [stdout] test tests::init_val ... ok
[INFO] [stdout] test tests::test_from_2d_vec ... ok
[INFO] [stdout] test tests::test_from_reg_add ... ok
[INFO] [stdout] test tests::test_get_col ... ok
[INFO] [stdout] test tests::test_get_row ... ok
[INFO] [stdout] test tests::test_matrix_addition ... ok
[INFO] [stdout] test tests::test_matrix_subtraction ... ok
[INFO] [stdout] test tests::test_mult_scalar ... ok
[INFO] [stdout] test tests::test_one_over ... ok
[INFO] [stdout] test tests::test_mult ... ok
[INFO] [stdout] test tests::test_piece_by_mult ... ok
[INFO] [stdout] test tests::test_exp ... ok
[INFO] [stderr]    Doc-tests matrix_simp
[INFO] [stdout] test tests::test_transpose ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "7be3be7da435d56ccf1ca02dd58e88339504f560897007b76e9cf3784244b25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be3be7da435d56ccf1ca02dd58e88339504f560897007b76e9cf3784244b25a", kill_on_drop: false }`
[INFO] [stdout] 7be3be7da435d56ccf1ca02dd58e88339504f560897007b76e9cf3784244b25a