[INFO] cloning repository https://github.com/scottmerchant/terminal_games
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottmerchant/terminal_games" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottmerchant%2Fterminal_games", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottmerchant%2Fterminal_games'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bc3d09f99f43aee6bc31052dcbd6d307c123ec6
[INFO] checking scottmerchant/terminal_games against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottmerchant%2Fterminal_games" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scottmerchant/terminal_games on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scottmerchant/terminal_games
[INFO] finished tweaking git repo https://github.com/scottmerchant/terminal_games
[INFO] tweaked toml for git repo https://github.com/scottmerchant/terminal_games written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/scottmerchant/terminal_games already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sorted-list v0.2.0
[INFO] [stderr]   Downloaded queues v1.1.0
[INFO] [stderr]   Downloaded serde_yaml v0.9.11
[INFO] [stderr]   Downloaded argh_shared v0.1.8
[INFO] [stderr]   Downloaded argh_derive v0.1.8
[INFO] [stderr]   Downloaded flexi_logger v0.23.0
[INFO] [stderr]   Downloaded argh v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe8190c4882df6cdb279e8e28b4d161bcd68f9f65c2b695d5890b740f3641d7
[INFO] running `Command { std: "docker" "start" "-a" "dbe8190c4882df6cdb279e8e28b4d161bcd68f9f65c2b695d5890b740f3641d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe8190c4882df6cdb279e8e28b4d161bcd68f9f65c2b695d5890b740f3641d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe8190c4882df6cdb279e8e28b4d161bcd68f9f65c2b695d5890b740f3641d7", kill_on_drop: false }`
[INFO] [stdout] dbe8190c4882df6cdb279e8e28b4d161bcd68f9f65c2b695d5890b740f3641d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c8576db32b4c0850b0290468ced2f93adbb97fe8ff2bffa6b56f26a7c95fa06
[INFO] running `Command { std: "docker" "start" "-a" "8c8576db32b4c0850b0290468ced2f93adbb97fe8ff2bffa6b56f26a7c95fa06", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking sorted-list v0.2.0
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking queues v1.1.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]     Checking snake_tui_game_view v0.0.1 (/opt/rustwide/workdir/snake/tui_game_view)
[INFO] [stderr]     Checking snake_engine v0.0.1 (/opt/rustwide/workdir/snake/engine)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]     Checking minesweeper_engine v1.0.0 (/opt/rustwide/workdir/minesweeper/engine)
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking flexi_logger v0.23.0
[INFO] [stderr]     Checking argh v0.1.8
[INFO] [stderr]     Checking serde_yaml v0.9.11
[INFO] [stderr]     Checking tui v1.0.0 (/opt/rustwide/workdir/tui)
[INFO] [stderr]     Checking game_actions v1.0.0 (/opt/rustwide/workdir/game_actions)
[INFO] [stderr]     Checking minesweeper_tui_game_view v1.0.0 (/opt/rustwide/workdir/minesweeper/tui_game_view)
[INFO] [stderr]     Checking terminal_games v1.0.0 (/opt/rustwide/workdir/game)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.26s
[INFO] running `Command { std: "docker" "inspect" "8c8576db32b4c0850b0290468ced2f93adbb97fe8ff2bffa6b56f26a7c95fa06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c8576db32b4c0850b0290468ced2f93adbb97fe8ff2bffa6b56f26a7c95fa06", kill_on_drop: false }`
[INFO] [stdout] 8c8576db32b4c0850b0290468ced2f93adbb97fe8ff2bffa6b56f26a7c95fa06
[INFO] checking scottmerchant/terminal_games against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottmerchant%2Fterminal_games" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scottmerchant/terminal_games on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scottmerchant/terminal_games
[INFO] finished tweaking git repo https://github.com/scottmerchant/terminal_games
[INFO] tweaked toml for git repo https://github.com/scottmerchant/terminal_games written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/scottmerchant/terminal_games already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67af86c7e0ce67317c511af3a912d507372e58a50d19b7656f2550eefcf04c3d
[INFO] running `Command { std: "docker" "start" "-a" "67af86c7e0ce67317c511af3a912d507372e58a50d19b7656f2550eefcf04c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67af86c7e0ce67317c511af3a912d507372e58a50d19b7656f2550eefcf04c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67af86c7e0ce67317c511af3a912d507372e58a50d19b7656f2550eefcf04c3d", kill_on_drop: false }`
[INFO] [stdout] 67af86c7e0ce67317c511af3a912d507372e58a50d19b7656f2550eefcf04c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8363980fe4035e03ac6e83d51f8d042b44d8491e18fd52e2cb29d981fed2dfe6
[INFO] running `Command { std: "docker" "start" "-a" "8363980fe4035e03ac6e83d51f8d042b44d8491e18fd52e2cb29d981fed2dfe6", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking sorted-list v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking queues v1.1.0
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]     Checking snake_engine v0.0.1 (/opt/rustwide/workdir/snake/engine)
[INFO] [stderr]     Checking snake_tui_game_view v0.0.1 (/opt/rustwide/workdir/snake/tui_game_view)
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking minesweeper_engine v1.0.0 (/opt/rustwide/workdir/minesweeper/engine)
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking flexi_logger v0.23.0
[INFO] [stderr]     Checking argh v0.1.8
[INFO] [stderr]     Checking serde_yaml v0.9.11
[INFO] [stderr]     Checking tui v1.0.0 (/opt/rustwide/workdir/tui)
[INFO] [stderr]     Checking game_actions v1.0.0 (/opt/rustwide/workdir/game_actions)
[INFO] [stderr]     Checking minesweeper_tui_game_view v1.0.0 (/opt/rustwide/workdir/minesweeper/tui_game_view)
[INFO] [stderr]     Checking terminal_games v1.0.0 (/opt/rustwide/workdir/game)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.22s
[INFO] running `Command { std: "docker" "inspect" "8363980fe4035e03ac6e83d51f8d042b44d8491e18fd52e2cb29d981fed2dfe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8363980fe4035e03ac6e83d51f8d042b44d8491e18fd52e2cb29d981fed2dfe6", kill_on_drop: false }`
[INFO] [stdout] 8363980fe4035e03ac6e83d51f8d042b44d8491e18fd52e2cb29d981fed2dfe6