[INFO] cloning repository https://github.com/jramos14/Matrix-Operations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jramos14/Matrix-Operations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjramos14%2FMatrix-Operations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjramos14%2FMatrix-Operations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ebe42742b34b75e71fee96f253fad6cde6fa9ba
[INFO] testing jramos14/Matrix-Operations against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjramos14%2FMatrix-Operations" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jramos14/Matrix-Operations on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jramos14/Matrix-Operations
[INFO] finished tweaking git repo https://github.com/jramos14/Matrix-Operations
[INFO] tweaked toml for git repo https://github.com/jramos14/Matrix-Operations written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/jramos14/Matrix-Operations already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f4b9820cb6abeaa0220070b9598345fdbc40290e82532d38f2aa4f46db6d5d
[INFO] running `Command { std: "docker" "start" "-a" "72f4b9820cb6abeaa0220070b9598345fdbc40290e82532d38f2aa4f46db6d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f4b9820cb6abeaa0220070b9598345fdbc40290e82532d38f2aa4f46db6d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f4b9820cb6abeaa0220070b9598345fdbc40290e82532d38f2aa4f46db6d5d", kill_on_drop: false }`
[INFO] [stdout] 72f4b9820cb6abeaa0220070b9598345fdbc40290e82532d38f2aa4f46db6d5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fda4f58110edc56d38df1e02dfde9239803c31f1be21b2be6036361a84a6bbc
[INFO] running `Command { std: "docker" "start" "-a" "8fda4f58110edc56d38df1e02dfde9239803c31f1be21b2be6036361a84a6bbc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling your v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | use std::ops::Add;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack1`
[INFO] [stdout]    --> src/lib.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack2`
[INFO] [stdout]    --> src/lib.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack3`
[INFO] [stdout]    --> src/lib.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_stack`
[INFO] [stdout]    --> src/lib.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columnIndex`
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columnIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let mut empty_vec = Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = self.row * self.col;
[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/lib.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let mut size = self.row * self.col;
[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/lib.rs:235:9
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[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/lib.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[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/lib.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[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/lib.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[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/lib.rs:356:13
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[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/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[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/lib.rs:358:13
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 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/lib.rs:372:21
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[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/lib.rs:380:21
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `resultMatrix` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:355:17
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let mut resultMatrix = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringSpace` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:356:17
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringNewline` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `columnIndex` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:372:25
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:380:25
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "8fda4f58110edc56d38df1e02dfde9239803c31f1be21b2be6036361a84a6bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fda4f58110edc56d38df1e02dfde9239803c31f1be21b2be6036361a84a6bbc", kill_on_drop: false }`
[INFO] [stdout] 8fda4f58110edc56d38df1e02dfde9239803c31f1be21b2be6036361a84a6bbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 474dbe26a8d423ea57be5c0740ac08769b04863500e11134d753d306259b35c1
[INFO] running `Command { std: "docker" "start" "-a" "474dbe26a8d423ea57be5c0740ac08769b04863500e11134d753d306259b35c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | use std::ops::Add;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling your v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stack1`
[INFO] [stdout]    --> src/lib.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack2`
[INFO] [stdout]    --> src/lib.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack3`
[INFO] [stdout]    --> src/lib.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_stack`
[INFO] [stdout]    --> src/lib.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columnIndex`
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columnIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let mut empty_vec = Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = self.row * self.col;
[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/lib.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let mut size = self.row * self.col;
[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/lib.rs:235:9
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[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/lib.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[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/lib.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[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/lib.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[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/lib.rs:356:13
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[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/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[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/lib.rs:358:13
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 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/lib.rs:372:21
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[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/lib.rs:380:21
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `resultMatrix` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:355:17
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let mut resultMatrix = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringSpace` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:356:17
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringNewline` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `columnIndex` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:372:25
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:380:25
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | use std::ops::Add;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack1`
[INFO] [stdout]    --> src/lib.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack2`
[INFO] [stdout]    --> src/lib.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack3`
[INFO] [stdout]    --> src/lib.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_stack`
[INFO] [stdout]    --> src/lib.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columnIndex`
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columnIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let mut empty_vec = Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = self.row * self.col;
[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/lib.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let mut size = self.row * self.col;
[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/lib.rs:235:9
[INFO] [stdout]     |
[INFO] [stdout] 235 |     let mut stack1: Vec<T> = vec![];
[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/lib.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |     let mut stack2: Vec<T> = vec![];
[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/lib.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let mut stack3: Vec<T> = vec![];
[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/lib.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let mut empty_stack: Vec<T> = vec![];
[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/lib.rs:356:13
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[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/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[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/lib.rs:358:13
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 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/lib.rs:372:21
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[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/lib.rs:380:21
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `resultMatrix` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:355:17
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let mut resultMatrix = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringSpace` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:356:17
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let mut stringSpace = " ";
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringNewline` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut stringNewline = "\n";
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `columnIndex` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:358:17
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut columnIndex = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:372:25
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `stringElement` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:380:25
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "474dbe26a8d423ea57be5c0740ac08769b04863500e11134d753d306259b35c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474dbe26a8d423ea57be5c0740ac08769b04863500e11134d753d306259b35c1", kill_on_drop: false }`
[INFO] [stdout] 474dbe26a8d423ea57be5c0740ac08769b04863500e11134d753d306259b35c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 749b001332cbf94fb30ad39d61890bed0bd31cac24ee3c3f73e3d57ad0eee265
[INFO] running `Command { std: "docker" "start" "-a" "749b001332cbf94fb30ad39d61890bed0bd31cac24ee3c3f73e3d57ad0eee265", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::ops::Add`
[INFO] [stderr]    --> src/lib.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 | use std::ops::Add;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack1`
[INFO] [stderr]    --> src/lib.rs:235:13
[INFO] [stderr]     |
[INFO] [stderr] 235 |     let mut stack1: Vec<T> = vec![];
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack2`
[INFO] [stderr]    --> src/lib.rs:236:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let mut stack2: Vec<T> = vec![];
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack3`
[INFO] [stderr]    --> src/lib.rs:237:13
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut stack3: Vec<T> = vec![];
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `empty_stack`
[INFO] [stderr]    --> src/lib.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |     let mut empty_stack: Vec<T> = vec![];
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_stack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `columnIndex`
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |         let mut columnIndex = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columnIndex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |     let mut empty_vec = Vec::new();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut size = self.row * self.col;
[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/lib.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let mut size = self.row * self.col;
[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/lib.rs:235:9
[INFO] [stderr]     |
[INFO] [stderr] 235 |     let mut stack1: Vec<T> = vec![];
[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/lib.rs:236:9
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let mut stack2: Vec<T> = vec![];
[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/lib.rs:237:9
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut stack3: Vec<T> = vec![];
[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/lib.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |     let mut empty_stack: Vec<T> = vec![];
[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/lib.rs:356:13
[INFO] [stderr]     |
[INFO] [stderr] 356 |         let mut stringSpace = " ";
[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/lib.rs:357:13
[INFO] [stderr]     |
[INFO] [stderr] 357 |         let mut stringNewline = "\n";
[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/lib.rs:358:13
[INFO] [stderr]     |
[INFO] [stderr] 358 |         let mut columnIndex = 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/lib.rs:372:21
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 let mut stringElement : String = self.data[k].to_string();
[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/lib.rs:380:21
[INFO] [stderr]     |
[INFO] [stderr] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stderr]     |                     ----^^^^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `resultMatrix` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:355:17
[INFO] [stderr]     |
[INFO] [stderr] 355 |         let mut resultMatrix = "".to_string();
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `stringSpace` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |         let mut stringSpace = " ";
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `stringNewline` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:357:17
[INFO] [stderr]     |
[INFO] [stderr] 357 |         let mut stringNewline = "\n";
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `columnIndex` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |         let mut columnIndex = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `stringElement` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:372:25
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `stringElement` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:380:25
[INFO] [stderr]     |
[INFO] [stderr] 380 |                 let mut stringElement : String = self.data[k].to_string();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element`
[INFO] [stderr] 
[INFO] [stderr] warning: `your` (lib) generated 24 warnings
[INFO] [stderr] warning: `your` (lib test) generated 24 warnings (24 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.74s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/your-849c3ca44c880e96)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test ... ok
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_data ... ok
[INFO] [stdout] test test_mul ... ok
[INFO] [stdout] test test_mut_data ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_new_empty ... ok
[INFO] [stdout] test test_fmt ... ok
[INFO] [stdout] test test_size ... ok
[INFO] [stdout] test test_sub ... ok
[INFO] [stdout] test test_add_panic - should panic ... ok
[INFO] [stdout] test test_sub_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests your
[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" "749b001332cbf94fb30ad39d61890bed0bd31cac24ee3c3f73e3d57ad0eee265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749b001332cbf94fb30ad39d61890bed0bd31cac24ee3c3f73e3d57ad0eee265", kill_on_drop: false }`
[INFO] [stdout] 749b001332cbf94fb30ad39d61890bed0bd31cac24ee3c3f73e3d57ad0eee265