[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 beta-2021-01-01 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-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Arpafaucon/rust-minesweeper on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-4/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 8d186d1e157ba8ea38c78d5e08c56e9383e6ebcb3013561021f16e930150f891
[INFO] running `Command { std: "docker" "start" "-a" "8d186d1e157ba8ea38c78d5e08c56e9383e6ebcb3013561021f16e930150f891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d186d1e157ba8ea38c78d5e08c56e9383e6ebcb3013561021f16e930150f891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d186d1e157ba8ea38c78d5e08c56e9383e6ebcb3013561021f16e930150f891", kill_on_drop: false }`
[INFO] [stdout] 8d186d1e157ba8ea38c78d5e08c56e9383e6ebcb3013561021f16e930150f891
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de3d0582ab5001db2c66f41061317a527c458ad9210a25d8fa9c2731abf6d8d
[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" "4de3d0582ab5001db2c66f41061317a527c458ad9210a25d8fa9c2731abf6d8d", 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 12.13s
[INFO] running `Command { std: "docker" "inspect" "4de3d0582ab5001db2c66f41061317a527c458ad9210a25d8fa9c2731abf6d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de3d0582ab5001db2c66f41061317a527c458ad9210a25d8fa9c2731abf6d8d", kill_on_drop: false }`
[INFO] [stdout] 4de3d0582ab5001db2c66f41061317a527c458ad9210a25d8fa9c2731abf6d8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] c94c8b5f282b6475541906de6331890d3a8097e10025fdd60a805e0a4396363c
[INFO] running `Command { std: "docker" "start" "-a" "c94c8b5f282b6475541906de6331890d3a8097e10025fdd60a805e0a4396363c", kill_on_drop: false }`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "c94c8b5f282b6475541906de6331890d3a8097e10025fdd60a805e0a4396363c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94c8b5f282b6475541906de6331890d3a8097e10025fdd60a805e0a4396363c", kill_on_drop: false }`
[INFO] [stdout] c94c8b5f282b6475541906de6331890d3a8097e10025fdd60a805e0a4396363c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1a9fcdd5dabd90c945c2a092394b0d96910bf09550993a551648492eddd57ea
[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" "c1a9fcdd5dabd90c945c2a092394b0d96910bf09550993a551648492eddd57ea", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minesweeper-6d9bffd276acd0bd
[INFO] [stdout] running 19 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ascii_client-97472236bac12c76
[INFO] [stdout] test ascii_client::test::input ... ok
[INFO] [stdout] test ascii_client::test::display_pristine ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_3 ... ok
[INFO] [stdout] test minefield::grid::test::index ... ok
[INFO] [stdout] test minefield::grid::test::get_set ... ok
[INFO] [stdout] test minefield::grid::test::iter ... ok
[INFO] [stdout] test minefield::grid::test::display ... ok
[INFO] [stdout] test minefield::grid::test::neighbours ... ok
[INFO] [stdout] test minefield::client::test::reveal ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_2 ... ok
[INFO] [stdout] test minefield::field::test::preset_example ... ok
[INFO] [stdout] test minefield::field::test::bury_bombs_1 ... ok
[INFO] [stdout] test minefield::client::test::scenario_0 ... ok
[INFO] [stdout] test tui_client::test::coordinates ... ok
[INFO] [stdout] test ascii_client::test::display_revealed ... ok
[INFO] [stdout] test minefield::client::test::scenario_1 ... ok
[INFO] [stdout] test minefield::field::test::new ... ok
[INFO] [stdout] test minefield::field::test::display ... ok
[INFO] [stdout] test ascii_client::test::display_flagged ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/minesweeper-ef85fd6232fe0764
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tui_client-17f6b2c617a21ebc
[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]    Doc-tests minesweeper
[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] [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" "c1a9fcdd5dabd90c945c2a092394b0d96910bf09550993a551648492eddd57ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a9fcdd5dabd90c945c2a092394b0d96910bf09550993a551648492eddd57ea", kill_on_drop: false }`
[INFO] [stdout] c1a9fcdd5dabd90c945c2a092394b0d96910bf09550993a551648492eddd57ea