[INFO] updating cached repository https://github.com/Dialock/Math_Library
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f9f74a5ffe5f111bc817021c1d62d438170b3442
[INFO] checking Dialock/Math_Library against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FMath_Library" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dialock/Math_Library on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Dialock/Math_Library already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ba420e8223a35e0fe67be94083a6ead64c4904f4c139a51b380c41cf70e2cea
[INFO] running `"docker" "start" "-a" "9ba420e8223a35e0fe67be94083a6ead64c4904f4c139a51b380c41cf70e2cea"`
[INFO] [stderr]     Checking math_library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrices.rs:166:6
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let mut tmp = matrix.mat[0+0*inv_matrix.width];
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_op`
[INFO] [stderr]   --> src/matrices.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn single_op() {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `multi_op`
[INFO] [stderr]   --> src/matrices.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn multi_op() {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_var`
[INFO] [stderr]    --> src/matrices.rs:244:4
[INFO] [stderr]     |
[INFO] [stderr] 244 | fn get_var(s: String) -> usize {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_A` should have a snake case name
[INFO] [stderr]    --> src/matrices.rs:281:23
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stderr]     |                       ^^^^^ help: convert the identifier to snake case: `mat_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_B` should have a snake case name
[INFO] [stderr]    --> src/matrices.rs:281:44
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stderr]     |                                            ^^^^^ help: convert the identifier to snake case: `mat_b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrices.rs:166:6
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let mut tmp = matrix.mat[0+0*inv_matrix.width];
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_op`
[INFO] [stderr]   --> src/matrices.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn single_op() {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `multi_op`
[INFO] [stderr]   --> src/matrices.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn multi_op() {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_var`
[INFO] [stderr]    --> src/matrices.rs:244:4
[INFO] [stderr]     |
[INFO] [stderr] 244 | fn get_var(s: String) -> usize {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_A` should have a snake case name
[INFO] [stderr]    --> src/matrices.rs:281:23
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stderr]     |                       ^^^^^ help: convert the identifier to snake case: `mat_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mat_B` should have a snake case name
[INFO] [stderr]    --> src/matrices.rs:281:44
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn matrix_matrix_mult(mat_A: &mut MatrixT, mat_B: &mut MatrixT, mat_result: &mut MatrixT) {
[INFO] [stderr]     |                                            ^^^^^ help: convert the identifier to snake case: `mat_b`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "9ba420e8223a35e0fe67be94083a6ead64c4904f4c139a51b380c41cf70e2cea"`
[INFO] running `"docker" "rm" "-f" "9ba420e8223a35e0fe67be94083a6ead64c4904f4c139a51b380c41cf70e2cea"`
[INFO] [stdout] 9ba420e8223a35e0fe67be94083a6ead64c4904f4c139a51b380c41cf70e2cea