[INFO] cloning repository https://github.com/mnussbaum/card-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mnussbaum/card-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fcard-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fcard-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90252ec6a3d5d1c0a49ed9035f26dbe9d236885d
[INFO] testing mnussbaum/card-game against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fcard-game" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mnussbaum/card-game on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mnussbaum/card-game
[INFO] finished tweaking git repo https://github.com/mnussbaum/card-game
[INFO] tweaked toml for git repo https://github.com/mnussbaum/card-game written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/mnussbaum/card-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text_io v0.1.8
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a40767e12cbf21568eb86b962b5f136042695df81af5ca33da0632dc8e61f138
[INFO] running `Command { std: "docker" "start" "-a" "a40767e12cbf21568eb86b962b5f136042695df81af5ca33da0632dc8e61f138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40767e12cbf21568eb86b962b5f136042695df81af5ca33da0632dc8e61f138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40767e12cbf21568eb86b962b5f136042695df81af5ca33da0632dc8e61f138", kill_on_drop: false }`
[INFO] [stdout] a40767e12cbf21568eb86b962b5f136042695df81af5ca33da0632dc8e61f138
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f66ef66505c6101361120a07623e6816d8b4db1d69b8f2f222a80670a6ae800a
[INFO] running `Command { std: "docker" "start" "-a" "f66ef66505c6101361120a07623e6816d8b4db1d69b8f2f222a80670a6ae800a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[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 serde_yaml v0.8.13
[INFO] [stderr]    Compiling card-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Action`
[INFO] [stdout]  --> src/game_state.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::game_rules::{Action, GameRules};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_state`
[INFO] [stdout]    --> src/game_rules.rs:231:23
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn execute(&self, game_state: &mut GameState) -> Result<(), String> {
[INFO] [stdout]     |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     game_state.play_game();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.71s
[INFO] running `Command { std: "docker" "inspect" "f66ef66505c6101361120a07623e6816d8b4db1d69b8f2f222a80670a6ae800a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f66ef66505c6101361120a07623e6816d8b4db1d69b8f2f222a80670a6ae800a", kill_on_drop: false }`
[INFO] [stdout] f66ef66505c6101361120a07623e6816d8b4db1d69b8f2f222a80670a6ae800a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9f78b229dd5447703800d00e759cf1337a9cd73e4ef681e526d8c7b811ac5c4
[INFO] running `Command { std: "docker" "start" "-a" "a9f78b229dd5447703800d00e759cf1337a9cd73e4ef681e526d8c7b811ac5c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling card-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Action`
[INFO] [stdout]  --> src/game_state.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::game_rules::{Action, GameRules};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_state`
[INFO] [stdout]    --> src/game_rules.rs:231:23
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn execute(&self, game_state: &mut GameState) -> Result<(), String> {
[INFO] [stdout]     |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     game_state.play_game();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "a9f78b229dd5447703800d00e759cf1337a9cd73e4ef681e526d8c7b811ac5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f78b229dd5447703800d00e759cf1337a9cd73e4ef681e526d8c7b811ac5c4", kill_on_drop: false }`
[INFO] [stdout] a9f78b229dd5447703800d00e759cf1337a9cd73e4ef681e526d8c7b811ac5c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f4d5dce71fb72806c6450a63d9fd08f8817b3bffae20e8ce5ce82f08b64dc178
[INFO] running `Command { std: "docker" "start" "-a" "f4d5dce71fb72806c6450a63d9fd08f8817b3bffae20e8ce5ce82f08b64dc178", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Action`
[INFO] [stderr]  --> src/game_state.rs:4:25
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::game_rules::{Action, GameRules};
[INFO] [stderr]   |                         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `game_state`
[INFO] [stderr]    --> src/game_rules.rs:231:23
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn execute(&self, game_state: &mut GameState) -> Result<(), String> {
[INFO] [stderr]     |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     game_state.play_game();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `card-game` (bin "card-game" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/card_game-7d2e4de095b8e27a)
[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" "f4d5dce71fb72806c6450a63d9fd08f8817b3bffae20e8ce5ce82f08b64dc178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d5dce71fb72806c6450a63d9fd08f8817b3bffae20e8ce5ce82f08b64dc178", kill_on_drop: false }`
[INFO] [stdout] f4d5dce71fb72806c6450a63d9fd08f8817b3bffae20e8ce5ce82f08b64dc178