[INFO] cloning repository https://github.com/NichtsVonChaos/japanese_mahjong_theory
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NichtsVonChaos/japanese_mahjong_theory" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNichtsVonChaos%2Fjapanese_mahjong_theory", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNichtsVonChaos%2Fjapanese_mahjong_theory'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44270ec36f76f27136be1980746ffc258fbbae2d
[INFO] testing NichtsVonChaos/japanese_mahjong_theory against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNichtsVonChaos%2Fjapanese_mahjong_theory" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NichtsVonChaos/japanese_mahjong_theory on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NichtsVonChaos/japanese_mahjong_theory
[INFO] finished tweaking git repo https://github.com/NichtsVonChaos/japanese_mahjong_theory
[INFO] tweaked toml for git repo https://github.com/NichtsVonChaos/japanese_mahjong_theory written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/NichtsVonChaos/japanese_mahjong_theory already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25f313d4f5a661b1b1943d258a677f9cdc93cbaa0b1c5f056dbde4fe7d86efd0
[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" "25f313d4f5a661b1b1943d258a677f9cdc93cbaa0b1c5f056dbde4fe7d86efd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25f313d4f5a661b1b1943d258a677f9cdc93cbaa0b1c5f056dbde4fe7d86efd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f313d4f5a661b1b1943d258a677f9cdc93cbaa0b1c5f056dbde4fe7d86efd0", kill_on_drop: false }`
[INFO] [stdout] 25f313d4f5a661b1b1943d258a677f9cdc93cbaa0b1c5f056dbde4fe7d86efd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25f4fea1f02c6cd84e266c915a2fba7b893271a484b0f2347eea7304ca789a1e
[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" "25f4fea1f02c6cd84e266c915a2fba7b893271a484b0f2347eea7304ca789a1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling japanese_mahjong_theory v1.18.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: pattern bindings after an `@` are unstable
[INFO] [stdout]    --> src/game/game_manager.rs:485:57
[INFO] [stdout]     |
[INFO] [stdout] 485 |                 kind: Naku::Pon(koutsu @ Mentsu::Koutsu(hai)),
[INFO] [stdout]     |                                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #65490 <https://github.com/rust-lang/rust/issues/65490> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: pattern bindings after an `@` are unstable
[INFO] [stdout]    --> src/game/game_manager.rs:503:57
[INFO] [stdout]     |
[INFO] [stdout] 503 |                         kantsu: kantsu @ Mentsu::Kantsu(hai),
[INFO] [stdout]     |                                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #65490 <https://github.com/rust-lang/rust/issues/65490> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: pattern bindings after an `@` are unstable
[INFO] [stdout]    --> src/game/game_manager.rs:762:57
[INFO] [stdout]     |
[INFO] [stdout] 762 |                 kind: Naku::Pon(koutsu @ Mentsu::Koutsu(hai)),
[INFO] [stdout]     |                                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #65490 <https://github.com/rust-lang/rust/issues/65490> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `japanese_mahjong_theory` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "25f4fea1f02c6cd84e266c915a2fba7b893271a484b0f2347eea7304ca789a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f4fea1f02c6cd84e266c915a2fba7b893271a484b0f2347eea7304ca789a1e", kill_on_drop: false }`
[INFO] [stdout] 25f4fea1f02c6cd84e266c915a2fba7b893271a484b0f2347eea7304ca789a1e