[INFO] updating cached repository https://github.com/Kollode/game-of-life-rs
[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] 2a2c258822bc040ede3de9986f4bd87a3bb662b6
[INFO] checking Kollode/game-of-life-rs against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKollode%2Fgame-of-life-rs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kollode/game-of-life-rs on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/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 `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 38dfffb81fd26559e67d88934cbcdc8add2f36306a0e0405b7bc81952c622fec
[INFO] running `"docker" "start" "-a" "38dfffb81fd26559e67d88934cbcdc8add2f36306a0e0405b7bc81952c622fec"`
[INFO] [stderr]    Compiling khronos_api v3.0.0
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.7
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking approx v0.3.0
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.7
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rusttype v0.7.3
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking andrew v0.1.4
[INFO] [stderr]     Checking piston2d-graphics v0.28.0
[INFO] [stderr]    Compiling wayland-client v0.21.7
[INFO] [stderr]    Compiling wayland-protocols v0.21.7
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking wayland-commons v0.21.7
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking pistoncore-input v0.23.0
[INFO] [stderr]     Checking pistoncore-window v0.34.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.57.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.3
[INFO] [stderr]     Checking pistoncore-event_loop v0.39.0
[INFO] [stderr]     Checking piston v0.39.0
[INFO] [stderr]     Checking winit v0.18.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.51.1
[INFO] [stderr]     Checking game-of-live-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable `zell` is assigned to, but never used
[INFO] [stderr]    --> src/gameboard.rs:139:29
[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: consider prefixing 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: variable `zell` is assigned to, but never used
[INFO] [stderr]    --> src/gameboard.rs:139:29
[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: consider prefixing 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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 32s
[INFO] running `"docker" "inspect" "38dfffb81fd26559e67d88934cbcdc8add2f36306a0e0405b7bc81952c622fec"`
[INFO] running `"docker" "rm" "-f" "38dfffb81fd26559e67d88934cbcdc8add2f36306a0e0405b7bc81952c622fec"`
[INFO] [stdout] 38dfffb81fd26559e67d88934cbcdc8add2f36306a0e0405b7bc81952c622fec