[INFO] cloning repository https://github.com/0xgb1/matrix_processor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xgb1/matrix_processor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xgb1%2Fmatrix_processor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xgb1%2Fmatrix_processor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddf58fe0fad3f752e44fcbfcc21d2e4de702354e
[INFO] building 0xgb1/matrix_processor against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xgb1%2Fmatrix_processor" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xgb1/matrix_processor on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xgb1/matrix_processor
[INFO] finished tweaking git repo https://github.com/0xgb1/matrix_processor
[INFO] tweaked toml for git repo https://github.com/0xgb1/matrix_processor written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0xgb1/matrix_processor 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a764bce89302881b516fdd080db64fc07b4a322087004324a2fee0faeb041d11
[INFO] running `Command { std: "docker" "start" "-a" "a764bce89302881b516fdd080db64fc07b4a322087004324a2fee0faeb041d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a764bce89302881b516fdd080db64fc07b4a322087004324a2fee0faeb041d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a764bce89302881b516fdd080db64fc07b4a322087004324a2fee0faeb041d11", kill_on_drop: false }`
[INFO] [stdout] a764bce89302881b516fdd080db64fc07b4a322087004324a2fee0faeb041d11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ce3c338ea84589d105da3cb5124cf6cd07ba8f6c87581cbfe059937156a62a7
[INFO] running `Command { std: "docker" "start" "-a" "6ce3c338ea84589d105da3cb5124cf6cd07ba8f6c87581cbfe059937156a62a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrix_processor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut count = 0;
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_count` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn transpose(M: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]   |              ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `def_2D_matrix` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn def_2D_matrix(m: usize, n: usize) -> Vec<Vec<i64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `def_2_d_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut A = Vec::with_capacity(m);
[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/lib.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[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/lib.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]    |                                            ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `new_B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let new_B = transpose(b_ref);
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `new_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn matrix_power(A: Vec<Vec<i64>>, n: usize) -> Vec<Vec<i64>> {
[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/lib.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn determinant(A: Vec<Vec<i64>>) -> i64 {
[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/lib.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn matrix_inverse(A: Vec<Vec<i64>>) -> (Vec<Vec<i64>>, u8, i64) {
[INFO] [stdout]     |                       ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "6ce3c338ea84589d105da3cb5124cf6cd07ba8f6c87581cbfe059937156a62a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ce3c338ea84589d105da3cb5124cf6cd07ba8f6c87581cbfe059937156a62a7", kill_on_drop: false }`
[INFO] [stdout] 6ce3c338ea84589d105da3cb5124cf6cd07ba8f6c87581cbfe059937156a62a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfe0e3859b695caa6b9e59948175ab9753945209f854c5f8460b4c462dbe569e
[INFO] running `Command { std: "docker" "start" "-a" "bfe0e3859b695caa6b9e59948175ab9753945209f854c5f8460b4c462dbe569e", kill_on_drop: false }`
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut count = 0;
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_count` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn transpose(M: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]   |              ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `def_2D_matrix` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn def_2D_matrix(m: usize, n: usize) -> Vec<Vec<i64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `def_2_d_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut A = Vec::with_capacity(m);
[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/lib.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]    |                          ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling matrix_processor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]    |                                            ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `new_B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let new_B = transpose(b_ref);
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `new_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn matrix_power(A: Vec<Vec<i64>>, n: usize) -> Vec<Vec<i64>> {
[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/lib.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn determinant(A: Vec<Vec<i64>>) -> i64 {
[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/lib.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn matrix_inverse(A: Vec<Vec<i64>>) -> (Vec<Vec<i64>>, u8, i64) {
[INFO] [stdout]     |                       ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut count = 0;
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_count` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn transpose(M: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]   |              ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `def_2D_matrix` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn def_2D_matrix(m: usize, n: usize) -> Vec<Vec<i64>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `def_2_d_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut A = Vec::with_capacity(m);
[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/lib.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[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/lib.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn multiply_matrices(A: Vec<Vec<i64>>, B: &Vec<Vec<i64>>) -> Vec<Vec<i64>> {
[INFO] [stdout]    |                                            ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `new_B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let new_B = transpose(b_ref);
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `new_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn matrix_power(A: Vec<Vec<i64>>, n: usize) -> Vec<Vec<i64>> {
[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/lib.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn determinant(A: Vec<Vec<i64>>) -> i64 {
[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/lib.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn matrix_inverse(A: Vec<Vec<i64>>) -> (Vec<Vec<i64>>, u8, i64) {
[INFO] [stdout]     |                       ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "bfe0e3859b695caa6b9e59948175ab9753945209f854c5f8460b4c462dbe569e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe0e3859b695caa6b9e59948175ab9753945209f854c5f8460b4c462dbe569e", kill_on_drop: false }`
[INFO] [stdout] bfe0e3859b695caa6b9e59948175ab9753945209f854c5f8460b4c462dbe569e
