[INFO] cloning repository https://github.com/JamieSK/battleships
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamieSK/battleships" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieSK%2Fbattleships", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieSK%2Fbattleships'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 989e6c2315ef3dc08bf94e0e5f882545a1364c62
[INFO] testing JamieSK/battleships against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieSK%2Fbattleships" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamieSK/battleships on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamieSK/battleships
[INFO] finished tweaking git repo https://github.com/JamieSK/battleships
[INFO] tweaked toml for git repo https://github.com/JamieSK/battleships written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/JamieSK/battleships already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 974b38974852d8a11238d31e57cfc886933f07c922fb0ad8dbde26ce2f49f7b2
[INFO] running `Command { std: "docker" "start" "-a" "974b38974852d8a11238d31e57cfc886933f07c922fb0ad8dbde26ce2f49f7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "974b38974852d8a11238d31e57cfc886933f07c922fb0ad8dbde26ce2f49f7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974b38974852d8a11238d31e57cfc886933f07c922fb0ad8dbde26ce2f49f7b2", kill_on_drop: false }`
[INFO] [stdout] 974b38974852d8a11238d31e57cfc886933f07c922fb0ad8dbde26ce2f49f7b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01003504c568a54e5cd808145b09da02cea3bda7711467216c73ff65fc5ac9a5
[INFO] running `Command { std: "docker" "start" "-a" "01003504c568a54e5cd808145b09da02cea3bda7711467216c73ff65fc5ac9a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling battleships v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:139:37
[INFO] [stdout]     |
[INFO] [stdout] 139 | ...                   let mut ships_left = self.ships_left(other_player);
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `Command { std: "docker" "inspect" "01003504c568a54e5cd808145b09da02cea3bda7711467216c73ff65fc5ac9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01003504c568a54e5cd808145b09da02cea3bda7711467216c73ff65fc5ac9a5", kill_on_drop: false }`
[INFO] [stdout] 01003504c568a54e5cd808145b09da02cea3bda7711467216c73ff65fc5ac9a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf086c06728417a4eb07cab618e45d652a7ab2b96d946ae7f0a94163bc4b78d
[INFO] running `Command { std: "docker" "start" "-a" "ecf086c06728417a4eb07cab618e45d652a7ab2b96d946ae7f0a94163bc4b78d", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:139:37
[INFO] [stdout]     |
[INFO] [stdout] 139 | ...                   let mut ships_left = self.ships_left(other_player);
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling battleships v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:139:37
[INFO] [stdout]     |
[INFO] [stdout] 139 | ...                   let mut ships_left = self.ships_left(other_player);
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "ecf086c06728417a4eb07cab618e45d652a7ab2b96d946ae7f0a94163bc4b78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf086c06728417a4eb07cab618e45d652a7ab2b96d946ae7f0a94163bc4b78d", kill_on_drop: false }`
[INFO] [stdout] ecf086c06728417a4eb07cab618e45d652a7ab2b96d946ae7f0a94163bc4b78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1974b4584da875cdc61745699e9f6d400b236629504d1cfc7d3300049546d412
[INFO] running `Command { std: "docker" "start" "-a" "1974b4584da875cdc61745699e9f6d400b236629504d1cfc7d3300049546d412", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:139:37
[INFO] [stderr]     |
[INFO] [stderr] 139 | ...                   let mut ships_left = self.ships_left(other_player);
[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: `battleships` (lib) generated 1 warning
[INFO] [stderr] warning: `battleships` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/battleships-8daa1e235695d38f)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/battleships-0724af96b0e47212)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/spec.rs (/opt/rustwide/target/debug/deps/spec-8e012b4620d8ca7e)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stderr]    Doc-tests battleships
[INFO] [stdout] test can_hit_cell_with_ship ... ok
[INFO] [stdout] test can_hit_empty_cell ... ok
[INFO] [stdout] test can_place_ships_in_any_order ... ok
[INFO] [stdout] test can_place_a_submarine_on_the_board ... ok
[INFO] [stdout] test cannot_place_ship_where_another_is ... ok
[INFO] [stdout] test can_sink_player_twos_battleships ... ok
[INFO] [stdout] test can_play_again_if_you_hit_a_ship ... ok
[INFO] [stdout] test cannot_play_until_all_ships_are_placed ... ok
[INFO] [stdout] test player_1_starts_with_a_blank_ships_board ... ok
[INFO] [stdout] test cannot_play_twice_in_a_row_as_the_same_player ... ok
[INFO] [stdout] test cannot_play_on_same_cell_twice ... ok
[INFO] [stdout] test hitting_one_players_ship_does_not_affect_the_others ... ok
[INFO] [stdout] test return_hit_when_hit_a_ship ... ok
[INFO] [stdout] test return_miss_when_hit_an_empty_cell ... ok
[INFO] [stdout] test return_sank_all_my_battleships_when_last_one_is_sunk ... ok
[INFO] [stdout] test return_sank_my_battleship_when_all_of_ship_has_been_hit ... ok
[INFO] [stdout] test player_1_starts_with_a_blank_shots_board ... ok
[INFO] [stdout] test ship_on_board_starts_not_hit ... ok
[INFO] [stdout] test returns_true_once_all_ships_are_positioned ... ok
[INFO] [stdout] test starts_with_ships_not_placed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1974b4584da875cdc61745699e9f6d400b236629504d1cfc7d3300049546d412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1974b4584da875cdc61745699e9f6d400b236629504d1cfc7d3300049546d412", kill_on_drop: false }`
[INFO] [stdout] 1974b4584da875cdc61745699e9f6d400b236629504d1cfc7d3300049546d412