[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] ffd6dd6c6fa23ba1c72d6ab9d5a8803a711d4cf1
[INFO] testing mnussbaum/card-game against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fcard-game" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mnussbaum/card-game 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/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-14/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed29764851e6a082de2f9079298465cc0eff5c620dd33c82735d81dfea0da7ca
[INFO] running `Command { std: "docker" "start" "-a" "ed29764851e6a082de2f9079298465cc0eff5c620dd33c82735d81dfea0da7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed29764851e6a082de2f9079298465cc0eff5c620dd33c82735d81dfea0da7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed29764851e6a082de2f9079298465cc0eff5c620dd33c82735d81dfea0da7ca", kill_on_drop: false }`
[INFO] [stdout] ed29764851e6a082de2f9079298465cc0eff5c620dd33c82735d81dfea0da7ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 6d51deeb744fe7ea65f5b4e6aba0140dd16e2d75b46cdb5597fce77fe3288bbb
[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" "6d51deeb744fe7ea65f5b4e6aba0140dd16e2d75b46cdb5597fce77fe3288bbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling card-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Card`
[INFO] [stdout]  --> src/game_state.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::card_deck::{Card, CardGroup, Deck};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hmm`
[INFO] [stdout]    --> src/game_state.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let hmm: usize = read!();
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_hmm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     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 10.44s
[INFO] running `Command { std: "docker" "inspect" "6d51deeb744fe7ea65f5b4e6aba0140dd16e2d75b46cdb5597fce77fe3288bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d51deeb744fe7ea65f5b4e6aba0140dd16e2d75b46cdb5597fce77fe3288bbb", kill_on_drop: false }`
[INFO] [stdout] 6d51deeb744fe7ea65f5b4e6aba0140dd16e2d75b46cdb5597fce77fe3288bbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7e72b683bfa845deba5cc76ab1c0c8dd91bdad3b8a968c7d0dcf9f99b9ed99be
[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" "7e72b683bfa845deba5cc76ab1c0c8dd91bdad3b8a968c7d0dcf9f99b9ed99be", kill_on_drop: false }`
[INFO] [stderr]    Compiling card-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Card`
[INFO] [stdout]  --> src/game_state.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::card_deck::{Card, CardGroup, Deck};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hmm`
[INFO] [stdout]    --> src/game_state.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let hmm: usize = read!();
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_hmm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     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 2.37s
[INFO] running `Command { std: "docker" "inspect" "7e72b683bfa845deba5cc76ab1c0c8dd91bdad3b8a968c7d0dcf9f99b9ed99be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e72b683bfa845deba5cc76ab1c0c8dd91bdad3b8a968c7d0dcf9f99b9ed99be", kill_on_drop: false }`
[INFO] [stdout] 7e72b683bfa845deba5cc76ab1c0c8dd91bdad3b8a968c7d0dcf9f99b9ed99be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 77113e7012ea42589888553386347eb6ea8f18e84568a4c1e6ebc09fd61f270e
[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" "77113e7012ea42589888553386347eb6ea8f18e84568a4c1e6ebc09fd61f270e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Card`
[INFO] [stderr]  --> src/game_state.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::card_deck::{Card, CardGroup, Deck};
[INFO] [stderr]   |                        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hmm`
[INFO] [stderr]    --> src/game_state.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |             let hmm: usize = read!();
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_hmm`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/card_game-1958986214fea496
[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" "77113e7012ea42589888553386347eb6ea8f18e84568a4c1e6ebc09fd61f270e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77113e7012ea42589888553386347eb6ea8f18e84568a4c1e6ebc09fd61f270e", kill_on_drop: false }`
[INFO] [stdout] 77113e7012ea42589888553386347eb6ea8f18e84568a4c1e6ebc09fd61f270e