[INFO] cloning repository https://github.com/ankitr/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ankitr/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fankitr%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fankitr%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1de4181e80713215aad8337fdec5c7fa5a99f3a7
[INFO] testing ankitr/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%2Fankitr%2Fminesweeper" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ankitr/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/ankitr/minesweeper
[INFO] finished tweaking git repo https://github.com/ankitr/minesweeper
[INFO] tweaked toml for git repo https://github.com/ankitr/minesweeper written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ankitr/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 9789ae35815cd0c403d1eb2984e1c0b74f4563cf21bdda8645449a16ac035eb0
[INFO] running `Command { std: "docker" "start" "-a" "9789ae35815cd0c403d1eb2984e1c0b74f4563cf21bdda8645449a16ac035eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9789ae35815cd0c403d1eb2984e1c0b74f4563cf21bdda8645449a16ac035eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9789ae35815cd0c403d1eb2984e1c0b74f4563cf21bdda8645449a16ac035eb0", kill_on_drop: false }`
[INFO] [stdout] 9789ae35815cd0c403d1eb2984e1c0b74f4563cf21bdda8645449a16ac035eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] efc9e15f8a94da8db2d3e64059728f51fbbf39570ddef350619e27857f0c4a55
[INFO] running `Command { std: "docker" "start" "-a" "efc9e15f8a94da8db2d3e64059728f51fbbf39570ddef350619e27857f0c4a55", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `bomb_count`
[INFO] [stdout]    --> src/main.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     bomb_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:164:10
[INFO] [stdout]     |
[INFO] [stdout] 164 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.98s
[INFO] running `Command { std: "docker" "inspect" "efc9e15f8a94da8db2d3e64059728f51fbbf39570ddef350619e27857f0c4a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc9e15f8a94da8db2d3e64059728f51fbbf39570ddef350619e27857f0c4a55", kill_on_drop: false }`
[INFO] [stdout] efc9e15f8a94da8db2d3e64059728f51fbbf39570ddef350619e27857f0c4a55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] c5ca0d620a8b53d390109b8a7667fbe7614048f1b8c338c529aed14a83497ecb
[INFO] running `Command { std: "docker" "start" "-a" "c5ca0d620a8b53d390109b8a7667fbe7614048f1b8c338c529aed14a83497ecb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `bomb_count`
[INFO] [stdout]    --> src/main.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     bomb_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:164:10
[INFO] [stdout]     |
[INFO] [stdout] 164 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/minesweeper-6fddaf66565a9032)
[INFO] running `Command { std: "docker" "inspect" "c5ca0d620a8b53d390109b8a7667fbe7614048f1b8c338c529aed14a83497ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ca0d620a8b53d390109b8a7667fbe7614048f1b8c338c529aed14a83497ecb", kill_on_drop: false }`
[INFO] [stdout] c5ca0d620a8b53d390109b8a7667fbe7614048f1b8c338c529aed14a83497ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 693f4e2087b2fc2dad1bd889a71908e7e708d6c2d09d4f49a359278a82fdea88
[INFO] running `Command { std: "docker" "start" "-a" "693f4e2087b2fc2dad1bd889a71908e7e708d6c2d09d4f49a359278a82fdea88", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `bomb_count`
[INFO] [stderr]    --> src/main.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     bomb_count: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/main.rs:164:10
[INFO] [stderr]     |
[INFO] [stderr] 164 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `minesweeper` (bin "minesweeper" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minesweeper-6fddaf66565a9032)
[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" "693f4e2087b2fc2dad1bd889a71908e7e708d6c2d09d4f49a359278a82fdea88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "693f4e2087b2fc2dad1bd889a71908e7e708d6c2d09d4f49a359278a82fdea88", kill_on_drop: false }`
[INFO] [stdout] 693f4e2087b2fc2dad1bd889a71908e7e708d6c2d09d4f49a359278a82fdea88