[INFO] updating cached repository https://github.com/Craig-Macomber/Life-Struggle
[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] 051d4626dafb950554469862d922425ceb2d3ff3
[INFO] checking Craig-Macomber/Life-Struggle against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCraig-Macomber%2FLife-Struggle" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Craig-Macomber/Life-Struggle 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/Craig-Macomber/Life-Struggle
[INFO] finished tweaking git repo https://github.com/Craig-Macomber/Life-Struggle
[INFO] tweaked toml for git repo https://github.com/Craig-Macomber/Life-Struggle written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Craig-Macomber/Life-Struggle already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 36af48fc83a77e70e77220d3aade48ca81cb4bf41648ba822f0bab5915739464
[INFO] running `"docker" "start" "-a" "36af48fc83a77e70e77220d3aade48ca81cb4bf41648ba822f0bab5915739464"`
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking life_struggle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                              ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[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/game.rs:18:68
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:52
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:74
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tile.rs:19:25
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn copy_from(t_in: &LifeTileSrc) -> Self {
[INFO] [stderr]    |                         ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                              ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[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/game.rs:18:68
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:52
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:74
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tile.rs:19:25
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn copy_from(t_in: &LifeTileSrc) -> Self {
[INFO] [stderr]    |                         ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tile.rs:86:21
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 let mut at = |cc: &mut usize, ix: usize, iy: usize| {
[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 is never used: `struggle`
[INFO] [stderr]   --> src/game.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lwss_at`
[INFO] [stderr]    --> src/game.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn lwss_at<T: LifeTile>(t: &mut T, x: usize, y: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tile.rs:86:21
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 let mut at = |cc: &mut usize, ix: usize, iy: usize| {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 21.31s
[INFO] running `"docker" "inspect" "36af48fc83a77e70e77220d3aade48ca81cb4bf41648ba822f0bab5915739464"`
[INFO] running `"docker" "rm" "-f" "36af48fc83a77e70e77220d3aade48ca81cb4bf41648ba822f0bab5915739464"`
[INFO] [stdout] 36af48fc83a77e70e77220d3aade48ca81cb4bf41648ba822f0bab5915739464