[INFO] cloning repository https://github.com/Arpafaucon/rust-minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arpafaucon/rust-minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArpafaucon%2Frust-minesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArpafaucon%2Frust-minesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06e4b02a41de928060330da662e2becf56af6905
[INFO] testing Arpafaucon/rust-minesweeper against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArpafaucon%2Frust-minesweeper" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Arpafaucon/rust-minesweeper on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Arpafaucon/rust-minesweeper
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Arpafaucon/rust-minesweeper
[INFO] tweaked toml for git repo https://github.com/Arpafaucon/rust-minesweeper written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Arpafaucon/rust-minesweeper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5d5137bce5ea1f098cce5fea31ea866649e7bb38b8fc413ad455be9c21b1beb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5d5137bce5ea1f098cce5fea31ea866649e7bb38b8fc413ad455be9c21b1beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5d5137bce5ea1f098cce5fea31ea866649e7bb38b8fc413ad455be9c21b1beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d5137bce5ea1f098cce5fea31ea866649e7bb38b8fc413ad455be9c21b1beb", kill_on_drop: false }`
[INFO] [stdout] a5d5137bce5ea1f098cce5fea31ea866649e7bb38b8fc413ad455be9c21b1beb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d533347b3250f0c2f73a1fd2d09f5fb87e4a8aa8f1adac0a3cc8bfab1e8389ac
[INFO] running `Command { std: "docker" "start" "-a" "d533347b3250f0c2f73a1fd2d09f5fb87e4a8aa8f1adac0a3cc8bfab1e8389ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `Command { std: "docker" "inspect" "d533347b3250f0c2f73a1fd2d09f5fb87e4a8aa8f1adac0a3cc8bfab1e8389ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d533347b3250f0c2f73a1fd2d09f5fb87e4a8aa8f1adac0a3cc8bfab1e8389ac", kill_on_drop: false }`
[INFO] [stdout] d533347b3250f0c2f73a1fd2d09f5fb87e4a8aa8f1adac0a3cc8bfab1e8389ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0872c36b8b4737b029df320578eda3aa49a4de663a5ec88d5fc6a2711c96658
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0872c36b8b4737b029df320578eda3aa49a4de663a5ec88d5fc6a2711c96658", kill_on_drop: false }`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.95s
[INFO] running `Command { std: "docker" "inspect" "c0872c36b8b4737b029df320578eda3aa49a4de663a5ec88d5fc6a2711c96658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0872c36b8b4737b029df320578eda3aa49a4de663a5ec88d5fc6a2711c96658", kill_on_drop: false }`
[INFO] [stdout] c0872c36b8b4737b029df320578eda3aa49a4de663a5ec88d5fc6a2711c96658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20db0cf43bafa2c47c6e31d311a131b5e4c3008637a02b2252b03e043e128f4d
[INFO] running `Command { std: "docker" "start" "-a" "20db0cf43bafa2c47c6e31d311a131b5e4c3008637a02b2252b03e043e128f4d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 19 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minesweeper-d45a8fcc09fbf385
[INFO] [stdout] test ascii_client::test::display_flagged ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ascii_client-0dfb5d79deddf366
[INFO] [stdout] test ascii_client::test::display_pristine ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minesweeper-2913527fc288495a
[INFO] [stdout] test ascii_client::test::display_revealed ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tui_client-e839a5d310c6f6fa
[INFO] [stdout] test minefield::client::test::reveal ... ok
[INFO] [stderr]    Doc-tests minesweeper
[INFO] [stdout] test ascii_client::test::input ... ok
[INFO] [stdout] test minefield::client::test::scenario_1 ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_2 ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_3 ... ok
[INFO] [stdout] test minefield::field::test::display ... ok
[INFO] [stdout] test minefield::field::test::preset_example ... ok
[INFO] [stdout] test minefield::grid::test::iter ... ok
[INFO] [stdout] test tui_client::test::coordinates ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_1 ... ok
[INFO] [stdout] test minefield::grid::test::display ... ok
[INFO] [stdout] test minefield::client::test::scenario_0 ... ok
[INFO] [stdout] test minefield::field::test::new ... ok
[INFO] [stdout] test minefield::grid::test::get_set ... ok
[INFO] [stdout] test minefield::grid::test::neighbours ... ok
[INFO] [stdout] test minefield::grid::test::index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[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
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "20db0cf43bafa2c47c6e31d311a131b5e4c3008637a02b2252b03e043e128f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20db0cf43bafa2c47c6e31d311a131b5e4c3008637a02b2252b03e043e128f4d", kill_on_drop: false }`
[INFO] [stdout] 20db0cf43bafa2c47c6e31d311a131b5e4c3008637a02b2252b03e043e128f4d