[INFO] updating cached repository https://github.com/SCOTPAUL/game_of_life
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] b8afccaee7dbc4c83bb509c20949fbe388d4e5e4
[INFO] checking SCOTPAUL/game_of_life against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSCOTPAUL%2Fgame_of_life" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SCOTPAUL/game_of_life on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SCOTPAUL/game_of_life
[INFO] finished tweaking git repo https://github.com/SCOTPAUL/game_of_life
[INFO] tweaked toml for git repo https://github.com/SCOTPAUL/game_of_life written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/SCOTPAUL/game_of_life already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a72a6d771e221d70c642acf8a42c34cf68161f5241e88294c5040a58686a0cec
[INFO] running `"docker" "start" "-a" "a72a6d771e221d70c642acf8a42c34cf68161f5241e88294c5040a58686a0cec"`
[INFO] [stderr]    Compiling tempfile v2.1.5
[INFO] [stderr]     Checking term v0.4.4
[INFO] [stderr]     Checking gag v0.1.9
[INFO] [stderr]     Checking rustty v0.1.12
[INFO] [stderr]     Checking game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn neighbors(accessor: &CellAccessor, i: isize, j: isize) -> Vec<&Cell>{
[INFO] [stderr]   |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn live_should_live(accessor: &CellAccessor, i: usize, j: usize) -> bool {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn dead_should_live(accessor: &CellAccessor, i: usize, j: usize) -> bool {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn neighbors(accessor: &CellAccessor, i: isize, j: isize) -> Vec<&Cell>{
[INFO] [stderr]   |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn live_should_live(accessor: &CellAccessor, i: usize, j: usize) -> bool {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn dead_should_live(accessor: &CellAccessor, i: usize, j: usize) -> bool {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn CellAccessor`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let mut current_cell = term.get_mut(cursor_pos.x, cursor_pos.y).unwrap();
[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/main.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let mut current_cell = term.get_mut(cursor_pos.x, cursor_pos.y).unwrap();
[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/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let mut current_cell = term.get_mut(cursor_pos.x, cursor_pos.y).unwrap();
[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/main.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let mut current_cell = term.get_mut(cursor_pos.x, cursor_pos.y).unwrap();
[INFO] [stderr]     |         ----^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `"docker" "inspect" "a72a6d771e221d70c642acf8a42c34cf68161f5241e88294c5040a58686a0cec"`
[INFO] running `"docker" "rm" "-f" "a72a6d771e221d70c642acf8a42c34cf68161f5241e88294c5040a58686a0cec"`
[INFO] [stdout] a72a6d771e221d70c642acf8a42c34cf68161f5241e88294c5040a58686a0cec