[INFO] updating cached repository SCOTPAUL/game_of_life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SCOTPAUL/game_of_life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SCOTPAUL/game_of_life" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/SCOTPAUL/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/SCOTPAUL/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SCOTPAUL/game_of_life" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/SCOTPAUL/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/SCOTPAUL/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8afccaee7dbc4c83bb509c20949fbe388d4e5e4
[INFO] sha for GitHub repo SCOTPAUL/game_of_life: b8afccaee7dbc4c83bb509c20949fbe388d4e5e4
[INFO] validating manifest of SCOTPAUL/game_of_life on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SCOTPAUL/game_of_life on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SCOTPAUL/game_of_life
[INFO] finished frobbing SCOTPAUL/game_of_life
[INFO] frobbed toml for SCOTPAUL/game_of_life written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/SCOTPAUL/game_of_life/Cargo.toml
[INFO] started frobbing SCOTPAUL/game_of_life
[INFO] finished frobbing SCOTPAUL/game_of_life
[INFO] frobbed toml for SCOTPAUL/game_of_life written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/SCOTPAUL/game_of_life/Cargo.toml
[INFO] crate SCOTPAUL/game_of_life already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking SCOTPAUL/game_of_life against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/SCOTPAUL/game_of_life:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b67bb9e4cd1e7be699aa2a05207564273908558dc6a000e3dd82040375678f3d
[INFO] running `"docker" "start" "-a" "b67bb9e4cd1e7be699aa2a05207564273908558dc6a000e3dd82040375678f3d"`
[INFO] [stderr]     Checking rustty v0.1.12
[INFO] [stderr]     Checking game_of_life v0.1.0 (/opt/crater/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: 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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "b67bb9e4cd1e7be699aa2a05207564273908558dc6a000e3dd82040375678f3d"`
[INFO] running `"docker" "rm" "-f" "b67bb9e4cd1e7be699aa2a05207564273908558dc6a000e3dd82040375678f3d"`
[INFO] [stdout] b67bb9e4cd1e7be699aa2a05207564273908558dc6a000e3dd82040375678f3d