[INFO] cloning repository https://github.com/Liar-Games/Study_Server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Liar-Games/Study_Server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiar-Games%2FStudy_Server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiar-Games%2FStudy_Server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d25d684817b447e75ccfe061b9f6afde7260925a
[INFO] checking Liar-Games/Study_Server against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for pr-133502-17
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiar-Games%2FStudy_Server" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Liar-Games/Study_Server
[INFO] finished tweaking git repo https://github.com/Liar-Games/Study_Server
[INFO] tweaked toml for git repo https://github.com/Liar-Games/Study_Server written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Liar-Games/Study_Server on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Liar-Games/Study_Server 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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "b9d88839918e7239c0db2d8b2a4b85e038515768971ffcb6b46f99b458a9ffcd", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: variants `MessageTo` and `GetOnlineCount` are never constructed
[INFO] [stdout]   --> src/actors/messages.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum ServerMessage {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     MessageTo {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     GetOnlineCount { reply: oneshot::Sender<usize> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id` and `tx` are never read
[INFO] [stdout]   --> src/actors/messages.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Join {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 79 |         user_id: ActorId,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 80 |         tx: mpsc::Sender<ClientMessage>,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RoomManagerCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MessageTo` and `GetOnlineCount` are never constructed
[INFO] [stdout]   --> src/actors/messages.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum ServerMessage {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     MessageTo {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     GetOnlineCount { reply: oneshot::Sender<usize> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id` and `tx` are never read
[INFO] [stdout]   --> src/actors/messages.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Join {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 79 |         user_id: ActorId,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 80 |         tx: mpsc::Sender<ClientMessage>,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RoomManagerCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.94s
[INFO] running `Command { std: "docker" "inspect" "a10ee0e5c72ac1fc9e86667dc83bb5ce6e6901cd617ec43bcf5739a75c2f3dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a10ee0e5c72ac1fc9e86667dc83bb5ce6e6901cd617ec43bcf5739a75c2f3dc2", kill_on_drop: false }`
[INFO] [stdout] a10ee0e5c72ac1fc9e86667dc83bb5ce6e6901cd617ec43bcf5739a75c2f3dc2
