[INFO] cloning repository https://github.com/aricasas/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aricasas/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9483add5f220de7c2f76bda63767f36a68cc76d6
[INFO] testing aricasas/minesweeper against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aricasas/minesweeper on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aricasas/minesweeper
[INFO] finished tweaking git repo https://github.com/aricasas/minesweeper
[INFO] tweaked toml for git repo https://github.com/aricasas/minesweeper written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/aricasas/minesweeper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de212e2e4419244f68b82bc1aedf59950da5232f59f40a16a4b843f3427b9949
[INFO] running `Command { std: "docker" "start" "-a" "de212e2e4419244f68b82bc1aedf59950da5232f59f40a16a4b843f3427b9949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de212e2e4419244f68b82bc1aedf59950da5232f59f40a16a4b843f3427b9949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de212e2e4419244f68b82bc1aedf59950da5232f59f40a16a4b843f3427b9949", kill_on_drop: false }`
[INFO] [stdout] de212e2e4419244f68b82bc1aedf59950da5232f59f40a16a4b843f3427b9949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8280c05ac72a81927fe9e9c7204a01d76380aeda213dba13c54cef38a098f4f
[INFO] running `Command { std: "docker" "start" "-a" "f8280c05ac72a81927fe9e9c7204a01d76380aeda213dba13c54cef38a098f4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `protected_x`
[INFO] [stdout]   --> src/minefield.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protected_y`
[INFO] [stdout]   --> src/minefield.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mines`
[INFO] [stdout]  --> src/cells.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Mines(u8),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/cells.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MissedMine`
[INFO] [stdout]  --> src/cells.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     MissedMine,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/cells.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadFlag`
[INFO] [stdout]   --> src/cells.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     BadFlag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cells.rs:3:16
[INFO] [stdout]    |
[INFO] [stdout] 3  | #[derive(Copy, Clone)]
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_new_mine_layout`
[INFO] [stdout]   --> src/minefield.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "f8280c05ac72a81927fe9e9c7204a01d76380aeda213dba13c54cef38a098f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8280c05ac72a81927fe9e9c7204a01d76380aeda213dba13c54cef38a098f4f", kill_on_drop: false }`
[INFO] [stdout] f8280c05ac72a81927fe9e9c7204a01d76380aeda213dba13c54cef38a098f4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44056fe28963b23e8ad0370db0b8753dbdf27a4a261b1ae8db1584f26e1405f7
[INFO] running `Command { std: "docker" "start" "-a" "44056fe28963b23e8ad0370db0b8753dbdf27a4a261b1ae8db1584f26e1405f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `protected_x`
[INFO] [stdout]   --> src/minefield.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protected_y`
[INFO] [stdout]   --> src/minefield.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mines`
[INFO] [stdout]  --> src/cells.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Mines(u8),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/cells.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MissedMine`
[INFO] [stdout]  --> src/cells.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     MissedMine,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/cells.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Copy, Clone)]
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadFlag`
[INFO] [stdout]   --> src/cells.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     BadFlag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cells.rs:3:16
[INFO] [stdout]    |
[INFO] [stdout] 3  | #[derive(Copy, Clone)]
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_new_mine_layout`
[INFO] [stdout]   --> src/minefield.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/minesweeper-fa31c6ee0e173c15)
[INFO] running `Command { std: "docker" "inspect" "44056fe28963b23e8ad0370db0b8753dbdf27a4a261b1ae8db1584f26e1405f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44056fe28963b23e8ad0370db0b8753dbdf27a4a261b1ae8db1584f26e1405f7", kill_on_drop: false }`
[INFO] [stdout] 44056fe28963b23e8ad0370db0b8753dbdf27a4a261b1ae8db1584f26e1405f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 40b7c82aaf761644d36617be85a11626980ef17c84a709f55564e9612a710898
[INFO] running `Command { std: "docker" "start" "-a" "40b7c82aaf761644d36617be85a11626980ef17c84a709f55564e9612a710898", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `protected_x`
[INFO] [stderr]   --> src/minefield.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stderr]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `protected_y`
[INFO] [stderr]   --> src/minefield.rs:49:48
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stderr]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mines`
[INFO] [stderr]  --> src/cells.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Mines(u8),
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/cells.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Copy, Clone)]
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MissedMine`
[INFO] [stderr]  --> src/cells.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     MissedMine,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/cells.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Copy, Clone)]
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BadFlag`
[INFO] [stderr]   --> src/cells.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     BadFlag,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `CellState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/cells.rs:3:16
[INFO] [stderr]    |
[INFO] [stderr] 3  | #[derive(Copy, Clone)]
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_new_mine_layout`
[INFO] [stderr]   --> src/minefield.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `minesweeper` (bin "minesweeper" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minesweeper-fa31c6ee0e173c15)
[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" "40b7c82aaf761644d36617be85a11626980ef17c84a709f55564e9612a710898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b7c82aaf761644d36617be85a11626980ef17c84a709f55564e9612a710898", kill_on_drop: false }`
[INFO] [stdout] 40b7c82aaf761644d36617be85a11626980ef17c84a709f55564e9612a710898