[INFO] cloning repository https://github.com/Dialock/Math_Library
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dialock/Math_Library" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FMath_Library", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FMath_Library'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9f74a5ffe5f111bc817021c1d62d438170b3442
[INFO] checking Dialock/Math_Library against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FMath_Library" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dialock/Math_Library on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dialock/Math_Library
[INFO] finished tweaking git repo https://github.com/Dialock/Math_Library
[INFO] tweaked toml for git repo https://github.com/Dialock/Math_Library written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Dialock/Math_Library already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3a92f1fc24204cd6f1eb383736fae223b585ee8a1729a811d0bd1fd4cbec3b5
[INFO] running `Command { std: "docker" "start" "-a" "f3a92f1fc24204cd6f1eb383736fae223b585ee8a1729a811d0bd1fd4cbec3b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3a92f1fc24204cd6f1eb383736fae223b585ee8a1729a811d0bd1fd4cbec3b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a92f1fc24204cd6f1eb383736fae223b585ee8a1729a811d0bd1fd4cbec3b5", kill_on_drop: false }`
[INFO] [stdout] f3a92f1fc24204cd6f1eb383736fae223b585ee8a1729a811d0bd1fd4cbec3b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edead5778fc298c32fff9e5d951618f6f1862bb92e1fa38116c87b0dc0e0541c
[INFO] running `Command { std: "docker" "start" "-a" "edead5778fc298c32fff9e5d951618f6f1862bb92e1fa38116c87b0dc0e0541c", kill_on_drop: false }`
[INFO] [stderr]     Checking math_library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrices.rs:166:6
[INFO] [stdout]     |
[INFO] [stdout] 166 |     let mut tmp = matrix.mat[0+0*inv_matrix.width];
[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] [stdout] warning: function is never used: `single_op`
[INFO] [stdout]   --> src/matrices.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn single_op() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multi_op`
[INFO] [stdout]   --> src/matrices.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn multi_op() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_var`
[INFO] [stdout]    --> src/matrices.rs:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn get_var(s: String) -> usize {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mat_A` should have a snake case name
[INFO] [stdout]    --> src/matrices.rs:281:23
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stdout]     |                       ^^^^^ help: convert the identifier to snake case: `mat_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mat_B` should have a snake case name
[INFO] [stdout]    --> src/matrices.rs:281:44
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stdout]     |                                            ^^^^^ help: convert the identifier to snake case: `mat_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrices.rs:166:6
[INFO] [stdout]     |
[INFO] [stdout] 166 |     let mut tmp = matrix.mat[0+0*inv_matrix.width];
[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] [stdout] warning: function is never used: `single_op`
[INFO] [stdout]   --> src/matrices.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn single_op() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multi_op`
[INFO] [stdout]   --> src/matrices.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn multi_op() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_var`
[INFO] [stdout]    --> src/matrices.rs:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn get_var(s: String) -> usize {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mat_A` should have a snake case name
[INFO] [stdout]    --> src/matrices.rs:281:23
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stdout]     |                       ^^^^^ help: convert the identifier to snake case: `mat_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mat_B` should have a snake case name
[INFO] [stdout]    --> src/matrices.rs:281:44
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stdout]     |                                            ^^^^^ help: convert the identifier to snake case: `mat_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "edead5778fc298c32fff9e5d951618f6f1862bb92e1fa38116c87b0dc0e0541c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edead5778fc298c32fff9e5d951618f6f1862bb92e1fa38116c87b0dc0e0541c", kill_on_drop: false }`
[INFO] [stdout] edead5778fc298c32fff9e5d951618f6f1862bb92e1fa38116c87b0dc0e0541c