[INFO] cloning repository https://github.com/SheSnake/game_room_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SheSnake/game_room_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_room_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_room_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 680d3817241b0b3b461aaa6a85496cb303a54416
[INFO] testing SheSnake/game_room_server against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSheSnake%2Fgame_room_server" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SheSnake/game_room_server 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/SheSnake/game_room_server
[INFO] finished tweaking git repo https://github.com/SheSnake/game_room_server
[INFO] tweaked toml for git repo https://github.com/SheSnake/game_room_server written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/SheSnake/game_room_server 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] c51ba4603b1eaa0da8407172242f0101cec7ccb1160fda334034773eb4e7ea5b
[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" "c51ba4603b1eaa0da8407172242f0101cec7ccb1160fda334034773eb4e7ea5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51ba4603b1eaa0da8407172242f0101cec7ccb1160fda334034773eb4e7ea5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51ba4603b1eaa0da8407172242f0101cec7ccb1160fda334034773eb4e7ea5b", kill_on_drop: false }`
[INFO] [stdout] c51ba4603b1eaa0da8407172242f0101cec7ccb1160fda334034773eb4e7ea5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 536616650e3d159f011e33134e476a2934f706c70b09c80cd0592083a66fbbd8
[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" "536616650e3d159f011e33134e476a2934f706c70b09c80cd0592083a66fbbd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling rdkafka-sys v1.3.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling redis v0.15.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling serde_bytes v0.10.5
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.2
[INFO] [stderr]    Compiling num_enum v0.4.2
[INFO] [stderr]    Compiling rdkafka v0.23.1
[INFO] [stderr]    Compiling game_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rdkafka::util::get_rdkafka_version`
[INFO] [stdout]   --> src/server_net/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use rdkafka::util::get_rdkafka_version;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rdkafka::util::get_rdkafka_version`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rdkafka::util::get_rdkafka_version;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/game/room/mod.rs:60:76
[INFO] [stdout]    |
[INFO] [stdout] 60 |       pub async fn get_room_topic(&self, room_id: &String) -> Option<String> {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 61 | |     }
[INFO] [stdout]    | |_____^ expected enum `std::option::Option`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::option::Option<std::string::String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/game/majiang_state.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         return;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 302 |         let mut in_wait_rsp = false;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `redis::AsyncCommands`
[INFO] [stdout]  --> src/game/room/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use redis::AsyncCommands;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `game_server`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "536616650e3d159f011e33134e476a2934f706c70b09c80cd0592083a66fbbd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536616650e3d159f011e33134e476a2934f706c70b09c80cd0592083a66fbbd8", kill_on_drop: false }`
[INFO] [stdout] 536616650e3d159f011e33134e476a2934f706c70b09c80cd0592083a66fbbd8