Dec 11 06:29:17.848 INFO checking walfie/rs-streams-test against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 06:29:17.848 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 06:29:18.386 INFO [stdout] d3b2d3af2da0cc85a0a78c4a626c8c434027258dc9d4cc98a23a35f46434d664
Dec 11 06:29:18.387 INFO running `"docker" "start" "-a" "d3b2d3af2da0cc85a0a78c4a626c8c434027258dc9d4cc98a23a35f46434d664"`
Dec 11 06:29:20.471 INFO [stderr] usermod: no changes
Dec 11 06:29:20.588 INFO [stderr]     Checking cfg-if v0.1.0
Dec 11 06:29:20.588 INFO [stderr]     Checking lazycell v0.4.0
Dec 11 06:29:20.592 INFO [stderr]     Checking iovec v0.1.0
Dec 11 06:29:21.097 INFO [stderr]     Checking bytes v0.4.3
Dec 11 06:29:21.099 INFO [stderr]     Checking net2 v0.2.29
Dec 11 06:29:22.022 INFO [stderr]     Checking mio v0.6.7
Dec 11 06:29:22.574 INFO [stderr]     Checking tokio-io v0.1.1
Dec 11 06:29:24.337 INFO [stderr]     Checking tokio-core v0.1.7
Dec 11 06:29:25.503 INFO [stderr]     Checking streams v0.1.0 (/source)
Dec 11 06:29:26.244 INFO [stderr] warning: function is never used: `new`
Dec 11 06:29:26.245 INFO [stderr]   --> src/broadcast.rs:8:1
Dec 11 06:29:26.245 INFO [stderr]    |
Dec 11 06:29:26.245 INFO [stderr] 8  | / pub fn new<SubId, Sub, Msg, MsgStream, E>(messages: MsgStream)
Dec 11 06:29:26.246 INFO [stderr] 9  | |     -> (SubscriptionManager<SubId, Sub, Msg>,
Dec 11 06:29:26.246 INFO [stderr] 10 | |         Broadcast<SubId, Sub, EventStream<SubId, Sub, Msg, MsgStream>>)
Dec 11 06:29:26.246 INFO [stderr] 11 | | where
Dec 11 06:29:26.247 INFO [stderr] ...  |
Dec 11 06:29:26.247 INFO [stderr] 29 | |     (manager, broadcast)
Dec 11 06:29:26.247 INFO [stderr] 30 | | }
Dec 11 06:29:26.248 INFO [stderr]    | |_^
Dec 11 06:29:26.248 INFO [stderr]    |
Dec 11 06:29:26.248 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:29:26.248 INFO [stderr] 
Dec 11 06:29:26.249 INFO [stderr] warning: struct is never constructed: `EventStream`
Dec 11 06:29:26.249 INFO [stderr]   --> src/broadcast.rs:33:1
Dec 11 06:29:26.249 INFO [stderr]    |
Dec 11 06:29:26.249 INFO [stderr] 33 | / pub struct EventStream<SubId, Sub, Msg, MsgStream>(
Dec 11 06:29:26.249 INFO [stderr] 34 | |     Select<mpsc::UnboundedReceiver<Event<SubId, Sub, Msg>>,
Dec 11 06:29:26.249 INFO [stderr] 35 | |             Map<MsgStream, fn(Msg) -> Event<SubId, Sub, Msg>>>
Dec 11 06:29:26.249 INFO [stderr] 36 | | );
Dec 11 06:29:26.249 INFO [stderr]    | |__^
Dec 11 06:29:26.249 INFO [stderr] 
Dec 11 06:29:26.249 INFO [stderr] warning: method is never used: `subscribe`
Dec 11 06:29:26.249 INFO [stderr]   --> src/broadcast.rs:56:5
Dec 11 06:29:26.249 INFO [stderr]    |
Dec 11 06:29:26.249 INFO [stderr] 56 | /     fn subscribe
Dec 11 06:29:26.249 INFO [stderr] 57 | |         (
Dec 11 06:29:26.249 INFO [stderr] 58 | |         &self,
Dec 11 06:29:26.249 INFO [stderr] 59 | |         id: SubId,
Dec 11 06:29:26.249 INFO [stderr] ...  |
Dec 11 06:29:26.249 INFO [stderr] 73 | |         )
Dec 11 06:29:26.249 INFO [stderr] 74 | |     }
Dec 11 06:29:26.249 INFO [stderr]    | |_____^
Dec 11 06:29:26.249 INFO [stderr] 
Dec 11 06:29:26.249 INFO [stderr] warning: variant is never constructed: `Subscribe`
Dec 11 06:29:26.249 INFO [stderr]    --> src/broadcast.rs:110:5
Dec 11 06:29:26.249 INFO [stderr]     |
Dec 11 06:29:26.249 INFO [stderr] 110 |     Subscribe { id: SubId, subscriber: Sub },
Dec 11 06:29:26.249 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.249 INFO [stderr] 
Dec 11 06:29:26.250 INFO [stderr] warning: variant is never constructed: `Message`
Dec 11 06:29:26.250 INFO [stderr]    --> src/broadcast.rs:112:5
Dec 11 06:29:26.250 INFO [stderr]     |
Dec 11 06:29:26.250 INFO [stderr] 112 |     Message(Msg),
Dec 11 06:29:26.250 INFO [stderr]     |     ^^^^^^^^^^^^
Dec 11 06:29:26.250 INFO [stderr] 
Dec 11 06:29:26.250 INFO [stderr] warning: struct is never constructed: `Broadcast`
Dec 11 06:29:26.250 INFO [stderr]    --> src/broadcast.rs:115:1
Dec 11 06:29:26.250 INFO [stderr]     |
Dec 11 06:29:26.250 INFO [stderr] 115 | pub struct Broadcast<SubId, Sub, EventsStream> {
Dec 11 06:29:26.250 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.250 INFO [stderr] 
Dec 11 06:29:26.250 INFO [stderr] warning: struct is never constructed: `Backlog`
Dec 11 06:29:26.251 INFO [stderr]  --> src/backlog.rs:4:1
Dec 11 06:29:26.251 INFO [stderr]   |
Dec 11 06:29:26.251 INFO [stderr] 4 | struct Backlog<T> {
Dec 11 06:29:26.251 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.251 INFO [stderr] 
Dec 11 06:29:26.251 INFO [stderr] warning: method is never used: `with_capacity`
Dec 11 06:29:26.251 INFO [stderr]   --> src/backlog.rs:18:5
Dec 11 06:29:26.251 INFO [stderr]    |
Dec 11 06:29:26.256 INFO [stderr] 18 |     fn with_capacity(capacity: usize) -> Self {
Dec 11 06:29:26.256 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.256 INFO [stderr] 
Dec 11 06:29:26.256 INFO [stderr] warning: method is never used: `insert`
Dec 11 06:29:26.256 INFO [stderr]   --> src/backlog.rs:32:5
Dec 11 06:29:26.256 INFO [stderr]    |
Dec 11 06:29:26.256 INFO [stderr] 32 |     fn insert(&mut self, item: T) {
Dec 11 06:29:26.257 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.257 INFO [stderr] 
Dec 11 06:29:26.257 INFO [stderr] warning: method is never used: `snapshot`
Dec 11 06:29:26.257 INFO [stderr]   --> src/backlog.rs:42:5
Dec 11 06:29:26.257 INFO [stderr]    |
Dec 11 06:29:26.257 INFO [stderr] 42 |     fn snapshot(&self) -> Arc<Vec<T>> {
Dec 11 06:29:26.257 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:29:26.257 INFO [stderr] 
Dec 11 06:29:26.429 INFO [stderr] warning: unused variable: `sub`
Dec 11 06:29:26.429 INFO [stderr]    --> src/broadcast.rs:237:25
Dec 11 06:29:26.429 INFO [stderr]     |
Dec 11 06:29:26.429 INFO [stderr] 237 |                     let sub = manager.subscribe(1, tx);
Dec 11 06:29:26.429 INFO [stderr]     |                         ^^^ help: consider using `_sub` instead
Dec 11 06:29:26.429 INFO [stderr]     |
Dec 11 06:29:26.429 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 06:29:26.430 INFO [stderr] 
Dec 11 06:29:26.570 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
Dec 11 06:29:26.575 INFO [stderr] su: No module specific data is present
Dec 11 06:29:27.627 INFO running `"docker" "inspect" "d3b2d3af2da0cc85a0a78c4a626c8c434027258dc9d4cc98a23a35f46434d664"`
Dec 11 06:29:28.014 INFO running `"docker" "rm" "-f" "d3b2d3af2da0cc85a0a78c4a626c8c434027258dc9d4cc98a23a35f46434d664"`
Dec 11 06:29:28.296 INFO [stdout] d3b2d3af2da0cc85a0a78c4a626c8c434027258dc9d4cc98a23a35f46434d664