[INFO] updating cached repository https://github.com/AndreasOlofsson/2048
[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] 7abed146c91b24c05feef6bd3d191bb7244c894b
[INFO] checking AndreasOlofsson/2048 against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreasOlofsson%2F2048" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AndreasOlofsson/2048 on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AndreasOlofsson/2048
[INFO] finished tweaking git repo https://github.com/AndreasOlofsson/2048
[INFO] tweaked toml for git repo https://github.com/AndreasOlofsson/2048 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AndreasOlofsson/2048 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9f6a26832ab43f00525ee1be3d5c3932b890918be00822ac924a8cd7488e52bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9f6a26832ab43f00525ee1be3d5c3932b890918be00822ac924a8cd7488e52bc"`
[INFO] [stderr]     Checking raw_tty v0.1.0
[INFO] [stderr]     Checking _2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `count_score`
[INFO] [stderr]   --> src/board.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn count_score(self) -> usize
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_score`
[INFO] [stderr]   --> src/board.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn count_score(self) -> usize
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "9f6a26832ab43f00525ee1be3d5c3932b890918be00822ac924a8cd7488e52bc"`
[INFO] running `"docker" "rm" "-f" "9f6a26832ab43f00525ee1be3d5c3932b890918be00822ac924a8cd7488e52bc"`
[INFO] [stdout] 9f6a26832ab43f00525ee1be3d5c3932b890918be00822ac924a8cd7488e52bc