Dec 18 07:07:59.072 INFO checking JasonSmith/signal against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:07:59.072 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/JasonSmith/signal:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:07:59.331 INFO [stdout] 6885f237e42de34f28782c6e8397286c44a74a5f43a36022418fcd721b9920ef
Dec 18 07:07:59.333 INFO running `"docker" "start" "-a" "6885f237e42de34f28782c6e8397286c44a74a5f43a36022418fcd721b9920ef"`
Dec 18 07:08:00.066 INFO [stderr]     Checking signal v0.1.0 (/opt/crater/workdir)
Dec 18 07:08:00.368 INFO [stderr] warning: unused import: `TypeId`
Dec 18 07:08:00.368 INFO [stderr]  --> src/signal.rs:1:21
Dec 18 07:08:00.368 INFO [stderr]   |
Dec 18 07:08:00.368 INFO [stderr] 1 | use std::any::{Any, TypeId};
Dec 18 07:08:00.368 INFO [stderr]   |                     ^^^^^^
Dec 18 07:08:00.368 INFO [stderr]   |
Dec 18 07:08:00.368 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:08:00.368 INFO [stderr] 
Dec 18 07:08:00.368 INFO [stderr] warning: unused import: `std::collections::hash_map::HashMap`
Dec 18 07:08:00.368 INFO [stderr]  --> src/signal.rs:4:5
Dec 18 07:08:00.368 INFO [stderr]   |
Dec 18 07:08:00.368 INFO [stderr] 4 | use std::collections::hash_map::HashMap;
Dec 18 07:08:00.368 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:08:00.368 INFO [stderr] 
Dec 18 07:08:00.476 INFO [stderr] warning: unused variable: `callback`
Dec 18 07:08:00.477 INFO [stderr]   --> src/signal.rs:84:46
Dec 18 07:08:00.477 INFO [stderr]    |
Dec 18 07:08:00.477 INFO [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
Dec 18 07:08:00.478 INFO [stderr]    |                                              ^^^^^^^^ help: consider using `_callback` instead
Dec 18 07:08:00.478 INFO [stderr]    |
Dec 18 07:08:00.479 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:08:00.479 INFO [stderr] 
Dec 18 07:08:00.516 INFO [stderr] warning: unused import: `TypeId`
Dec 18 07:08:00.516 INFO [stderr]  --> src/signal.rs:1:21
Dec 18 07:08:00.516 INFO [stderr]   |
Dec 18 07:08:00.516 INFO [stderr] 1 | use std::any::{Any, TypeId};
Dec 18 07:08:00.517 INFO [stderr]   |                     ^^^^^^
Dec 18 07:08:00.517 INFO [stderr]   |
Dec 18 07:08:00.517 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:08:00.517 INFO [stderr] 
Dec 18 07:08:00.517 INFO [stderr] warning: unused import: `std::collections::hash_map::HashMap`
Dec 18 07:08:00.517 INFO [stderr]  --> src/signal.rs:4:5
Dec 18 07:08:00.517 INFO [stderr]   |
Dec 18 07:08:00.517 INFO [stderr] 4 | use std::collections::hash_map::HashMap;
Dec 18 07:08:00.517 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:08:00.517 INFO [stderr] 
Dec 18 07:08:00.520 INFO [stderr] warning: type alias is never used: `CallbackID`
Dec 18 07:08:00.520 INFO [stderr]  --> src/signal.rs:6:1
Dec 18 07:08:00.520 INFO [stderr]   |
Dec 18 07:08:00.520 INFO [stderr] 6 | pub type CallbackID = usize;
Dec 18 07:08:00.520 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:08:00.520 INFO [stderr]   |
Dec 18 07:08:00.520 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 07:08:00.520 INFO [stderr] 
Dec 18 07:08:00.650 INFO [stderr] warning: unused variable: `callback`
Dec 18 07:08:00.650 INFO [stderr]   --> src/signal.rs:84:46
Dec 18 07:08:00.650 INFO [stderr]    |
Dec 18 07:08:00.650 INFO [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
Dec 18 07:08:00.650 INFO [stderr]    |                                              ^^^^^^^^ help: consider using `_callback` instead
Dec 18 07:08:00.650 INFO [stderr]    |
Dec 18 07:08:00.650 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:08:00.650 INFO [stderr] 
Dec 18 07:08:00.674 INFO [stderr] warning: type alias is never used: `CallbackID`
Dec 18 07:08:00.674 INFO [stderr]  --> src/signal.rs:6:1
Dec 18 07:08:00.674 INFO [stderr]   |
Dec 18 07:08:00.674 INFO [stderr] 6 | pub type CallbackID = usize;
Dec 18 07:08:00.674 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:08:00.674 INFO [stderr]   |
Dec 18 07:08:00.674 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 07:08:00.674 INFO [stderr] 
Dec 18 07:08:00.723 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 18 07:08:01.761 INFO running `"docker" "inspect" "6885f237e42de34f28782c6e8397286c44a74a5f43a36022418fcd721b9920ef"`
Dec 18 07:08:01.854 INFO running `"docker" "rm" "-f" "6885f237e42de34f28782c6e8397286c44a74a5f43a36022418fcd721b9920ef"`
Dec 18 07:08:02.152 INFO [stdout] 6885f237e42de34f28782c6e8397286c44a74a5f43a36022418fcd721b9920ef