[INFO] fetching crate scimath 0.1.2...
[INFO] testing scimath-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate scimath 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate scimath 0.1.2
[INFO] finished tweaking crates.io crate scimath 0.1.2
[INFO] tweaked toml for crates.io crate scimath 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scimath 0.1.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scimath 0.1.2 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5d2bb259d1fc7bfdb82549fdc4773e67a56e76694f0e34115f51b50486d98a3
[INFO] running `Command { std: "docker" "start" "-a" "b5d2bb259d1fc7bfdb82549fdc4773e67a56e76694f0e34115f51b50486d98a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5d2bb259d1fc7bfdb82549fdc4773e67a56e76694f0e34115f51b50486d98a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5d2bb259d1fc7bfdb82549fdc4773e67a56e76694f0e34115f51b50486d98a3", kill_on_drop: false }`
[INFO] [stdout] b5d2bb259d1fc7bfdb82549fdc4773e67a56e76694f0e34115f51b50486d98a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7675c9e2291dec82b723e72afe173b3449b06b1cedd6ec7720e64cb59314a5fa
[INFO] running `Command { std: "docker" "start" "-a" "7675c9e2291dec82b723e72afe173b3449b06b1cedd6ec7720e64cb59314a5fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling scimath v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/matrix.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/matrix.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/vector.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/vector.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]    --> src/types/matrix.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]   --> src/types/vector.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/linalg/solver.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/types/vector.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]  --> src/linalg/solver.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `U` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Pb` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut Pb = b.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let LU = partial_lu(A, b);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/matrix.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/matrix.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/vector.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/vector.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types::vector::Vector`
[INFO] [stdout]  --> src/main.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{types::matrix::Matrix, types::vector::Vector, linalg::solver};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     if (eye == D) {
[INFO] [stdout]    |        ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -     if (eye == D) {
[INFO] [stdout] 47 +     if eye == D {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     if (eye == D) {
[INFO] [stdout]    |        ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     if (eye == D) {
[INFO] [stdout] 52 +     if eye == D {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]    --> src/types/matrix.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]   --> src/types/vector.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/linalg/solver.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testLU` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn testLU() {
[INFO] [stdout]   |    ^^^^^^ help: convert the identifier to snake case: `test_lu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut A = Matrix::new(3,3);
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let LU = solver::lu(&A, &Matrix::new(3,1));
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solveTest` should have a snake case name
[INFO] [stdout]   --> src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn solveTest() {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `solve_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut A = &mat + &eye;
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let B = &mat - &eye;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let C = &eye * &A;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut D = Matrix::eye(3);
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E` should have a snake case name
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let E = &eye * &b;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/types/vector.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]  --> src/linalg/solver.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `U` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Pb` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut Pb = b.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let LU = partial_lu(A, b);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "7675c9e2291dec82b723e72afe173b3449b06b1cedd6ec7720e64cb59314a5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7675c9e2291dec82b723e72afe173b3449b06b1cedd6ec7720e64cb59314a5fa", kill_on_drop: false }`
[INFO] [stdout] 7675c9e2291dec82b723e72afe173b3449b06b1cedd6ec7720e64cb59314a5fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 0add891113ff1c683d629c0cae005f5a3e1bb881cf5ef3366c37c0d9b312c357
[INFO] running `Command { std: "docker" "start" "-a" "0add891113ff1c683d629c0cae005f5a3e1bb881cf5ef3366c37c0d9b312c357", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/matrix.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/matrix.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/vector.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scimath v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/vector.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]    --> src/types/matrix.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]   --> src/types/vector.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/linalg/solver.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/types/vector.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]  --> src/linalg/solver.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `U` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Pb` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut Pb = b.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let LU = partial_lu(A, b);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/matrix.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/matrix.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/vector.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/vector.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types::vector::Vector`
[INFO] [stdout]  --> src/main.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{types::matrix::Matrix, types::vector::Vector, linalg::solver};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     if (eye == D) {
[INFO] [stdout]    |        ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -     if (eye == D) {
[INFO] [stdout] 47 +     if eye == D {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     if (eye == D) {
[INFO] [stdout]    |        ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -     if (eye == D) {
[INFO] [stdout] 52 +     if eye == D {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/matrix.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/matrix.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/types/vector.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{self, Display};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/types/vector.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]    --> src/types/matrix.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]   --> src/types/vector.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]    --> src/types/matrix.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/linalg/solver.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]   --> src/types/vector.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testLU` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn testLU() {
[INFO] [stdout]   |    ^^^^^^ help: convert the identifier to snake case: `test_lu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/linalg/solver.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut A = Matrix::new(3,3);
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let LU = solver::lu(&A, &Matrix::new(3,1));
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solveTest` should have a snake case name
[INFO] [stdout]   --> src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn solveTest() {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `solve_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut A = &mat + &eye;
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let B = &mat - &eye;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let C = &eye * &A;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut D = Matrix::eye(3);
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E` should have a snake case name
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let E = &eye * &b;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/types/vector.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/types/vector.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]  --> src/linalg/solver.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]  --> src/linalg/solver.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `U` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `U` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stdout]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut LU = A.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Pb` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut Pb = b.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Pb` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut Pb = b.clone();
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stdout]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let LU = partial_lu(A, b);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `LU` should have a snake case name
[INFO] [stdout]   --> src/linalg/solver.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let LU = partial_lu(A, b);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "0add891113ff1c683d629c0cae005f5a3e1bb881cf5ef3366c37c0d9b312c357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0add891113ff1c683d629c0cae005f5a3e1bb881cf5ef3366c37c0d9b312c357", kill_on_drop: false }`
[INFO] [stdout] 0add891113ff1c683d629c0cae005f5a3e1bb881cf5ef3366c37c0d9b312c357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 04e24c64917ad277135f3656aadea5e8e094c31385913909d1fa463829cf8093
[INFO] running `Command { std: "docker" "start" "-a" "04e24c64917ad277135f3656aadea5e8e094c31385913909d1fa463829cf8093", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/types/matrix.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::{self, Display};
[INFO] [stderr]   |                      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::Copy`
[INFO] [stderr]  --> src/types/matrix.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::marker::Copy;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/types/vector.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::{self, Display};
[INFO] [stderr]   |                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::Copy`
[INFO] [stderr]  --> src/types/vector.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::marker::Copy;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `m` is never read
[INFO] [stderr]    --> src/types/matrix.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let mut m: Matrix = Matrix::new(self.m_rows, self.m_cols);
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `m` is never read
[INFO] [stderr]   --> src/types/vector.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut m: Vector = Vector::new(self.m_len);
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/linalg/solver.rs:37:23
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/types/vector.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             write!(f, "{:?}\n", self[row]);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]  --> src/linalg/solver.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stderr]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `U` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn back_sub(U: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stderr]    |                 ^ help: convert the identifier to snake case (notice the capitalization): `u`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn lu(A: &Matrix, b:&Matrix) -> Matrix {
[INFO] [stderr]    |           ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `LU` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut LU = A.clone();
[INFO] [stderr]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn partial_lu(A: &Matrix, b:&Matrix) -> (Matrix, Matrix) {
[INFO] [stderr]    |                   ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `LU` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let mut LU = A.clone();
[INFO] [stderr]    |             ^^ help: convert the identifier to snake case: `lu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Pb` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut Pb = b.clone();
[INFO] [stderr]    |             ^^ help: convert the identifier to snake case: `pb`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:94:14
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn solve(A: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stderr]    |              ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `LU` should have a snake case name
[INFO] [stderr]   --> src/linalg/solver.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let LU = partial_lu(A, b);
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stderr] 
[INFO] [stderr] warning: `scimath` (lib) generated 17 warnings (run `cargo fix --lib -p scimath` to apply 4 suggestions)
[INFO] [stderr] warning: unused import: `types::vector::Vector`
[INFO] [stderr]  --> src/main.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::{types::matrix::Matrix, types::vector::Vector, linalg::solver};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     if (eye == D) {
[INFO] [stderr]    |        ^        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 47 -     if (eye == D) {
[INFO] [stderr] 47 +     if eye == D {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |     if (eye == D) {
[INFO] [stderr]    |        ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 52 -     if (eye == D) {
[INFO] [stderr] 52 +     if eye == D {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: function `testLU` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn testLU() {
[INFO] [stderr]   |    ^^^^^^ help: convert the identifier to snake case: `test_lu`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]  --> src/main.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut A = Matrix::new(3,3);
[INFO] [stderr]   |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `LU` should have a snake case name
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let LU = solver::lu(&A, &Matrix::new(3,1));
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `lu`
[INFO] [stderr] 
[INFO] [stderr] warning: function `solveTest` should have a snake case name
[INFO] [stderr]   --> src/main.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn solveTest() {
[INFO] [stderr]    |    ^^^^^^^^^ help: convert the identifier to snake case: `solve_test`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/main.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut A = &mat + &eye;
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let B = &mat - &eye;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let C = &eye * &A;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut D = Matrix::eye(3);
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `d`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let E = &eye * &b;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]  --> src/linalg/solver.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn forward_sub(L: &Matrix, b: &Matrix) -> Matrix {
[INFO] [stderr]   |                    ^ help: convert the identifier to snake case: `l`
[INFO] [stderr] 
[INFO] [stderr] warning: `scimath` (bin "scimath" test) generated 29 warnings (16 duplicates) (run `cargo fix --bin "scimath" --tests` to apply 3 suggestions)
[INFO] [stderr] warning: `scimath` (lib test) generated 17 warnings (17 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/scimath-b56ba05f2afa014a)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/scimath-6af9a2b56821d880)
[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] [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" "04e24c64917ad277135f3656aadea5e8e094c31385913909d1fa463829cf8093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e24c64917ad277135f3656aadea5e8e094c31385913909d1fa463829cf8093", kill_on_drop: false }`
[INFO] [stdout] 04e24c64917ad277135f3656aadea5e8e094c31385913909d1fa463829cf8093