[INFO] cloning repository https://github.com/zfyre/rust-linalg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zfyre/rust-linalg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfyre%2Frust-linalg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfyre%2Frust-linalg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ef4fcd8d9d0797d7891a1b4294d30bc32a407cc
[INFO] testing zfyre/rust-linalg against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfyre%2Frust-linalg" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zfyre/rust-linalg
[INFO] finished tweaking git repo https://github.com/zfyre/rust-linalg
[INFO] tweaked toml for git repo https://github.com/zfyre/rust-linalg written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zfyre/rust-linalg on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zfyre/rust-linalg 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbe72ced5f22d5983e8c638e06c61e0fbf11b730225112e430044acbef563dcd
[INFO] running `Command { std: "docker" "start" "-a" "fbe72ced5f22d5983e8c638e06c61e0fbf11b730225112e430044acbef563dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbe72ced5f22d5983e8c638e06c61e0fbf11b730225112e430044acbef563dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe72ced5f22d5983e8c638e06c61e0fbf11b730225112e430044acbef563dcd", kill_on_drop: false }`
[INFO] [stdout] fbe72ced5f22d5983e8c638e06c61e0fbf11b730225112e430044acbef563dcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe4b76af3d6efaf6cd5781ed7eec1dcb1e8be62a211194314269194b521b008a
[INFO] running `Command { std: "docker" "start" "-a" "fe4b76af3d6efaf6cd5781ed7eec1dcb1e8be62a211194314269194b521b008a", kill_on_drop: false }`
[INFO] [stderr]    Compiling linalg_v0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:105:25
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let (n, m) = self.shape;
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `one` is never used
[INFO] [stdout]  --> src/main.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait DType {
[INFO] [stdout]   |       ----- associated function in this trait
[INFO] [stdout] 4 |     fn zero() -> Self;
[INFO] [stdout] 5 |     fn one() -> Self;
[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 items `identity`, `zeros`, `concat`, and `gauss_elm` are never used
[INFO] [stdout]    --> src/main.rs:73:8
[INFO] [stdout]     |
[INFO] [stdout]  33 | / impl<T> Matrix<T> 
[INFO] [stdout]  34 | | where
[INFO] [stdout]  35 | | T: Clone 
[INFO] [stdout]  36 | |     + std::fmt::Display 
[INFO] [stdout] ...   |
[INFO] [stdout]  44 | |     + std::cmp::PartialEq
[INFO] [stdout]  45 | |     + DType
[INFO] [stdout]     | |___________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  73 |       fn identity(shape: usize) -> Self {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |       fn zeros(shape: (usize, usize)) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       fn concat(&self, other: &Self, dim: usize) -> Self {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |       fn gauss_elm(&self) -> (Self, Vec<usize>) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "fe4b76af3d6efaf6cd5781ed7eec1dcb1e8be62a211194314269194b521b008a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4b76af3d6efaf6cd5781ed7eec1dcb1e8be62a211194314269194b521b008a", kill_on_drop: false }`
[INFO] [stdout] fe4b76af3d6efaf6cd5781ed7eec1dcb1e8be62a211194314269194b521b008a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa60c7ec9c77181e62a16a89052a0fdbb2459413cf96c14843d086cccd9f1078
[INFO] running `Command { std: "docker" "start" "-a" "aa60c7ec9c77181e62a16a89052a0fdbb2459413cf96c14843d086cccd9f1078", kill_on_drop: false }`
[INFO] [stderr]    Compiling linalg_v0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:105:25
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let (n, m) = self.shape;
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:428:13
[INFO] [stdout]     |
[INFO] [stdout] 428 |         let mut m1 = Matrix::new((3, 2), &[1, 2, 3, 4, 5, 6]);
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:439:13
[INFO] [stdout]     |
[INFO] [stdout] 439 |         let mut m1: Matrix<f64> = Matrix::new((3, 4), &[1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 0.0, 9.0, 10.0, 11.0, 12.0]);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let mut m1: Matrix<f64> = Matrix::new((3, 3), &[1.0, 2.0, 3.0, 0.0, 1.0, 4.0, 5.0, 6.0, 0.0]);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `zeros` is never used
[INFO] [stdout]   --> src/main.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | / impl<T> Matrix<T> 
[INFO] [stdout] 34 | | where
[INFO] [stdout] 35 | | T: Clone 
[INFO] [stdout] 36 | |     + std::fmt::Display 
[INFO] [stdout] ...  |
[INFO] [stdout] 44 | |     + std::cmp::PartialEq
[INFO] [stdout] 45 | |     + DType
[INFO] [stdout]    | |___________- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |       fn zeros(shape: (usize, usize)) -> Self {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "aa60c7ec9c77181e62a16a89052a0fdbb2459413cf96c14843d086cccd9f1078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa60c7ec9c77181e62a16a89052a0fdbb2459413cf96c14843d086cccd9f1078", kill_on_drop: false }`
[INFO] [stdout] aa60c7ec9c77181e62a16a89052a0fdbb2459413cf96c14843d086cccd9f1078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b34844239c5db95cce0fcafa7176e09e5194d7ecccd76d10b9abecfbf1878076
[INFO] running `Command { std: "docker" "start" "-a" "b34844239c5db95cce0fcafa7176e09e5194d7ecccd76d10b9abecfbf1878076", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:105:25
[INFO] [stdout] running 6 tests
[INFO] [stderr]     |
[INFO] [stdout] test tests::check_gauss_elm ... ok
[INFO] [stderr] 105 |                 let (n, m) = self.shape;
[INFO] [stdout] test tests::check_inverse ... ok
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] test tests::check_matrix_const_mul ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::check_chunk ... ok
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test tests::check_vector_concat ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::check_matrix_concat ... ok
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:428:13
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 428 |         let mut m1 = Matrix::new((3, 2), &[1, 2, 3, 4, 5, 6]);
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:439:13
[INFO] [stderr]     |
[INFO] [stderr] 439 |         let mut m1: Matrix<f64> = Matrix::new((3, 4), &[1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 0.0, 9.0, 10.0, 11.0, 12.0]);
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:447:13
[INFO] [stderr]     |
[INFO] [stderr] 447 |         let mut m1: Matrix<f64> = Matrix::new((3, 3), &[1.0, 2.0, 3.0, 0.0, 1.0, 4.0, 5.0, 6.0, 0.0]);
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `zeros` is never used
[INFO] [stderr]   --> src/main.rs:88:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | / impl<T> Matrix<T> 
[INFO] [stderr] 34 | | where
[INFO] [stderr] 35 | | T: Clone 
[INFO] [stderr] 36 | |     + std::fmt::Display 
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     + std::cmp::PartialEq
[INFO] [stderr] 45 | |     + DType
[INFO] [stderr]    | |___________- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 88 |       fn zeros(shape: (usize, usize)) -> Self {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `linalg_v0` (bin "linalg_v0" test) generated 5 warnings (run `cargo fix --bin "linalg_v0" -p linalg_v0 --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/linalg_v0-0ab4d8ad39700806)
[INFO] running `Command { std: "docker" "inspect" "b34844239c5db95cce0fcafa7176e09e5194d7ecccd76d10b9abecfbf1878076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34844239c5db95cce0fcafa7176e09e5194d7ecccd76d10b9abecfbf1878076", kill_on_drop: false }`
[INFO] [stdout] b34844239c5db95cce0fcafa7176e09e5194d7ecccd76d10b9abecfbf1878076
