[INFO] cloning repository https://github.com/Kollode/game-of-life-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kollode/game-of-life-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKollode%2Fgame-of-life-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKollode%2Fgame-of-life-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a2c258822bc040ede3de9986f4bd87a3bb662b6
[INFO] testing Kollode/game-of-life-rs against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKollode%2Fgame-of-life-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kollode/game-of-life-rs on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kollode/game-of-life-rs
[INFO] finished tweaking git repo https://github.com/Kollode/game-of-life-rs
[INFO] tweaked toml for git repo https://github.com/Kollode/game-of-life-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Kollode/game-of-life-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f2caaa37560633f7a4c84afc32d955e1017c06aef3bc612cf0d1d1f18c160bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0f2caaa37560633f7a4c84afc32d955e1017c06aef3bc612cf0d1d1f18c160bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f2caaa37560633f7a4c84afc32d955e1017c06aef3bc612cf0d1d1f18c160bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2caaa37560633f7a4c84afc32d955e1017c06aef3bc612cf0d1d1f18c160bf", kill_on_drop: false }`
[INFO] [stdout] 0f2caaa37560633f7a4c84afc32d955e1017c06aef3bc612cf0d1d1f18c160bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed14f6ec6855c010e5ccaa4497e84ff0e1a00961d7c9871738e4366e68b3c67a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed14f6ec6855c010e5ccaa4497e84ff0e1a00961d7c9871738e4366e68b3c67a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling khronos_api v3.0.0
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling shader_version v0.3.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling read_color v1.0.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling piston-texture v0.6.0
[INFO] [stderr]    Compiling interpolation v0.1.0
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.8
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling piston-viewport v0.5.0
[INFO] [stderr]    Compiling vecmath v0.3.1
[INFO] [stderr]    Compiling inflate v0.4.3
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
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[INFO] [stderr]    Compiling stb_truetype v0.2.4
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.7
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling approx v0.3.0
[INFO] [stderr]    Compiling ordered-float v1.0.1
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-client v0.21.7
[INFO] [stderr]    Compiling wayland-protocols v0.21.7
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling rusttype v0.7.3
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.21.7
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling andrew v0.1.4
[INFO] [stderr]    Compiling piston2d-graphics v0.28.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling wayland-commons v0.21.7
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.3
[INFO] [stderr]    Compiling pistoncore-input v0.23.0
[INFO] [stderr]    Compiling winit v0.18.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.57.0
[INFO] [stderr]    Compiling pistoncore-window v0.34.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.39.0
[INFO] [stderr]    Compiling piston v0.39.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.51.1
[INFO] [stderr]    Compiling game-of-live-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `zell` is assigned to, but never used
[INFO] [stdout]    --> src/gameboard.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |             if let Some(mut zell) = old_cells.get(index) {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_zell` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `zell` is never read
[INFO] [stdout]    --> src/gameboard.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 zell = &cell.clone();
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/gameboard.rs:101:30
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn update(&mut self, args: &UpdateArgs) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gameboard.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut old_cells = self.cells.clone();
[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 `getPositionFromIndex` should have a snake case name
[INFO] [stdout]    --> src/gameboard.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |  fn getPositionFromIndex(number_of_cols: f64, index: f64) -> (i64, i64) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getPositionFromRowCol` should have a snake case name
[INFO] [stdout]    --> src/gameboard.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn getPositionFromRowCol(number_of_cols: i64, row: i64, col: i64) -> i64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_row_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 25s
[INFO] running `Command { std: "docker" "inspect" "ed14f6ec6855c010e5ccaa4497e84ff0e1a00961d7c9871738e4366e68b3c67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed14f6ec6855c010e5ccaa4497e84ff0e1a00961d7c9871738e4366e68b3c67a", kill_on_drop: false }`
[INFO] [stdout] ed14f6ec6855c010e5ccaa4497e84ff0e1a00961d7c9871738e4366e68b3c67a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38fbed7d3dc991800ddd48d7e3ae32176115b6a4181ef107e4f64f20ba5fa20c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "38fbed7d3dc991800ddd48d7e3ae32176115b6a4181ef107e4f64f20ba5fa20c", kill_on_drop: false }`
[INFO] [stderr]    Compiling game-of-live-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `zell` is assigned to, but never used
[INFO] [stdout]    --> src/gameboard.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |             if let Some(mut zell) = old_cells.get(index) {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_zell` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `zell` is never read
[INFO] [stdout]    --> src/gameboard.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 zell = &cell.clone();
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/gameboard.rs:101:30
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn update(&mut self, args: &UpdateArgs) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gameboard.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut old_cells = self.cells.clone();
[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 `getPositionFromIndex` should have a snake case name
[INFO] [stdout]    --> src/gameboard.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |  fn getPositionFromIndex(number_of_cols: f64, index: f64) -> (i64, i64) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getPositionFromRowCol` should have a snake case name
[INFO] [stdout]    --> src/gameboard.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn getPositionFromRowCol(number_of_cols: i64, row: i64, col: i64) -> i64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_row_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "38fbed7d3dc991800ddd48d7e3ae32176115b6a4181ef107e4f64f20ba5fa20c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fbed7d3dc991800ddd48d7e3ae32176115b6a4181ef107e4f64f20ba5fa20c", kill_on_drop: false }`
[INFO] [stdout] 38fbed7d3dc991800ddd48d7e3ae32176115b6a4181ef107e4f64f20ba5fa20c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 878495b71d602da236e70d1c2d7f29fddf108a173a30647defb76c65ca37e115
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "878495b71d602da236e70d1c2d7f29fddf108a173a30647defb76c65ca37e115", kill_on_drop: false }`
[INFO] [stderr] warning: variable `zell` is assigned to, but never used
[INFO] [stderr]    --> src/gameboard.rs:139:25
[INFO] [stderr]     |
[INFO] [stderr] 139 |             if let Some(mut zell) = old_cells.get(index) {
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_zell` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `zell` is never read
[INFO] [stderr]    --> src/gameboard.rs:140:17
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 zell = &cell.clone();
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/gameboard.rs:101:30
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn update(&mut self, args: &UpdateArgs) {
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gameboard.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut old_cells = self.cells.clone();
[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 `getPositionFromIndex` should have a snake case name
[INFO] [stderr]    --> src/gameboard.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |  fn getPositionFromIndex(number_of_cols: f64, index: f64) -> (i64, i64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_index`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `getPositionFromRowCol` should have a snake case name
[INFO] [stderr]    --> src/gameboard.rs:159:8
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn getPositionFromRowCol(number_of_cols: i64, row: i64, col: i64) -> i64 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_position_from_row_col`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/game_of_live_rs-964ad5e3d3177964
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "878495b71d602da236e70d1c2d7f29fddf108a173a30647defb76c65ca37e115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878495b71d602da236e70d1c2d7f29fddf108a173a30647defb76c65ca37e115", kill_on_drop: false }`
[INFO] [stdout] 878495b71d602da236e70d1c2d7f29fddf108a173a30647defb76c65ca37e115
