[INFO] cloning repository https://github.com/sjdrodge/rusty-fireworks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjdrodge/rusty-fireworks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjdrodge%2Frusty-fireworks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjdrodge%2Frusty-fireworks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d442da142b05e6fd6874ecb04ed3aecfae148de2
[INFO] checking sjdrodge/rusty-fireworks against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjdrodge%2Frusty-fireworks" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sjdrodge/rusty-fireworks
[INFO] finished tweaking git repo https://github.com/sjdrodge/rusty-fireworks
[INFO] tweaked toml for git repo https://github.com/sjdrodge/rusty-fireworks written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sjdrodge/rusty-fireworks on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sjdrodge/rusty-fireworks 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "2fad43fac5e0bce15f9a4154539ec87636642f5bfd9a04097810bd13dc82447f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fad43fac5e0bce15f9a4154539ec87636642f5bfd9a04097810bd13dc82447f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fad43fac5e0bce15f9a4154539ec87636642f5bfd9a04097810bd13dc82447f", kill_on_drop: false }`
[INFO] [stdout] 2fad43fac5e0bce15f9a4154539ec87636642f5bfd9a04097810bd13dc82447f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a81195830ec87f8caa7a5b7e966a0d6c62ce2d6431e6885c931662c45e04fe9f
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[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/hanabi/session.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::error;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/session/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use log::error;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/hanabi/session.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::error;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/session/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use log::error;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_id` is never used
[INFO] [stdout]   --> src/hanabi/session.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Hanabi {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 72 |     pub fn get_id(&self) -> UserId {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Table` is never constructed
[INFO] [stdout]    --> src/hanabi/session.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum ChatRoom {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] 101 |     Lobby,
[INFO] [stdout] 102 |     Table(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ChatRoom` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Direct` is never constructed
[INFO] [stdout]    --> src/hanabi/session.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | enum ChatKind {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] 130 |     Server,
[INFO] [stdout] 131 |     Direct { from: String, to: String },
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ChatKind` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Event` is never constructed
[INFO] [stdout]   --> src/session/events.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum Event<T: State> {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 27 |     Event(T::Message),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_get` is never used
[INFO] [stdout]   --> src/session/map.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T: State> EventSinkEntry<T> {
[INFO] [stdout]    | -------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub async fn try_get(&self) -> Option<EventSinkCtx<T>> {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_id` is never used
[INFO] [stdout]   --> src/hanabi/session.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Hanabi {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 72 |     pub fn get_id(&self) -> UserId {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Table` is never constructed
[INFO] [stdout]    --> src/hanabi/session.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum ChatRoom {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] 101 |     Lobby,
[INFO] [stdout] 102 |     Table(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ChatRoom` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Direct` is never constructed
[INFO] [stdout]    --> src/hanabi/session.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | enum ChatKind {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] 130 |     Server,
[INFO] [stdout] 131 |     Direct { from: String, to: String },
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ChatKind` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Event` is never constructed
[INFO] [stdout]   --> src/session/events.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum Event<T: State> {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 27 |     Event(T::Message),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_get` is never used
[INFO] [stdout]   --> src/session/map.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T: State> EventSinkEntry<T> {
[INFO] [stdout]    | -------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub async fn try_get(&self) -> Option<EventSinkCtx<T>> {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |   ) -> Result<Arc<EventSinkMap<T>>, Never> {
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 68 | |     let event_sink_map = {
[INFO] [stdout] 69 | |         let mut locked = map.write().await;
[INFO] [stdout] 70 | |         match locked.entry(TypeId::of::<T>()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout] 83 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |   ) -> Result<Arc<EventSinkMap<T>>, Never> {
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 68 | |     let event_sink_map = {
[INFO] [stdout] 69 | |         let mut locked = map.write().await;
[INFO] [stdout] 70 | |         match locked.entry(TypeId::of::<T>()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout] 83 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     event_sink_map
[INFO] [stdout] 80 | |         .clone()
[INFO] [stdout] 81 | |         .downcast::<EventSinkMap<T>>()
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     try_get_event_sink_map(&SESSION_KIND_MAP)
[INFO] [stdout] 93 | |         .or_else(|_| create_event_sink_map(&SESSION_KIND_MAP))
[INFO] [stdout] 94 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 |         .await
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     try_get_event_sink_map(&SESSION_KIND_MAP)
[INFO] [stdout] 93 | |         .or_else(|_| create_event_sink_map(&SESSION_KIND_MAP))
[INFO] [stdout] 94 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |   ) -> Result<Arc<EventSinkMap<T>>, Never> {
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 68 | |     let event_sink_map = {
[INFO] [stdout] 69 | |         let mut locked = map.write().await;
[INFO] [stdout] 70 | |         match locked.entry(TypeId::of::<T>()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout] 83 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |   ) -> Result<Arc<EventSinkMap<T>>, Never> {
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 68 | |     let event_sink_map = {
[INFO] [stdout] 69 | |         let mut locked = map.write().await;
[INFO] [stdout] 70 | |         match locked.entry(TypeId::of::<T>()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout] 83 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     event_sink_map
[INFO] [stdout] 80 | |         .clone()
[INFO] [stdout] 81 | |         .downcast::<EventSinkMap<T>>()
[INFO] [stdout] 82 | |         .or_else(|_| unreachable!())
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     try_get_event_sink_map(&SESSION_KIND_MAP)
[INFO] [stdout] 93 | |         .or_else(|_| create_event_sink_map(&SESSION_KIND_MAP))
[INFO] [stdout] 94 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 |         .await
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<tokio::sync::RwLock<HashMap<<T as session::State>::Key, EventSinkEntry<T>>>>, Infallible>
[INFO] [stdout]   --> src/session/map.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     try_get_event_sink_map(&SESSION_KIND_MAP)
[INFO] [stdout] 93 | |         .or_else(|_| create_event_sink_map(&SESSION_KIND_MAP))
[INFO] [stdout] 94 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-fireworks` (bin "rusty-fireworks" test) due to 6 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rusty-fireworks` (bin "rusty-fireworks") due to 6 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a81195830ec87f8caa7a5b7e966a0d6c62ce2d6431e6885c931662c45e04fe9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81195830ec87f8caa7a5b7e966a0d6c62ce2d6431e6885c931662c45e04fe9f", kill_on_drop: false }`
[INFO] [stdout] a81195830ec87f8caa7a5b7e966a0d6c62ce2d6431e6885c931662c45e04fe9f
