[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] testing AndreasOlofsson/2048 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreasOlofsson%2F2048" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AndreasOlofsson/2048 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75c7e09a23e530061143486504f8dfd653b164b6e1086919261f231a4b8668d0
[INFO] running `"docker" "start" "-a" "75c7e09a23e530061143486504f8dfd653b164b6e1086919261f231a4b8668d0"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling raw_tty v0.1.0
[INFO] [stderr]    Compiling _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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.38s
[INFO] running `"docker" "inspect" "75c7e09a23e530061143486504f8dfd653b164b6e1086919261f231a4b8668d0"`
[INFO] running `"docker" "rm" "-f" "75c7e09a23e530061143486504f8dfd653b164b6e1086919261f231a4b8668d0"`
[INFO] [stdout] 75c7e09a23e530061143486504f8dfd653b164b6e1086919261f231a4b8668d0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stdout] ac523ff3f45685fcce8c8c3eef2e2f27204982ab54b2cb6da6dfb5fa63744d05
[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" "ac523ff3f45685fcce8c8c3eef2e2f27204982ab54b2cb6da6dfb5fa63744d05"`
[INFO] [stderr]    Compiling _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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "ac523ff3f45685fcce8c8c3eef2e2f27204982ab54b2cb6da6dfb5fa63744d05"`
[INFO] running `"docker" "rm" "-f" "ac523ff3f45685fcce8c8c3eef2e2f27204982ab54b2cb6da6dfb5fa63744d05"`
[INFO] [stdout] ac523ff3f45685fcce8c8c3eef2e2f27204982ab54b2cb6da6dfb5fa63744d05
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a53e35d92cda2ab764989d5b00ff19560e9d92c527768b742088ed429394be37
[INFO] running `"docker" "start" "-a" "a53e35d92cda2ab764989d5b00ff19560e9d92c527768b742088ed429394be37"`
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/_2048-d4eb140758291f59
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a53e35d92cda2ab764989d5b00ff19560e9d92c527768b742088ed429394be37"`
[INFO] running `"docker" "rm" "-f" "a53e35d92cda2ab764989d5b00ff19560e9d92c527768b742088ed429394be37"`
[INFO] [stdout] a53e35d92cda2ab764989d5b00ff19560e9d92c527768b742088ed429394be37