Dec 12 02:13:49.675 INFO checking JasonSmith/signal against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 02:13:49.675 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 02:13:49.964 INFO [stdout] 95860e40e1a9ff64ddb5c450e35b8f3147542c8f2bb30dac1b53b318e11d8f49
Dec 12 02:13:49.966 INFO running `"docker" "start" "-a" "95860e40e1a9ff64ddb5c450e35b8f3147542c8f2bb30dac1b53b318e11d8f49"`
Dec 12 02:13:51.034 INFO [stderr] usermod: no changes
Dec 12 02:13:51.112 INFO [stderr]     Checking signal v0.1.0 (/source)
Dec 12 02:13:51.828 INFO [stderr] warning: unused import: `TypeId`
Dec 12 02:13:51.828 INFO [stderr]  --> src/signal.rs:1:21
Dec 12 02:13:51.828 INFO [stderr]   |
Dec 12 02:13:51.828 INFO [stderr] 1 | use std::any::{Any, TypeId};
Dec 12 02:13:51.828 INFO [stderr]   |                     ^^^^^^
Dec 12 02:13:51.828 INFO [stderr]   |
Dec 12 02:13:51.828 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 02:13:51.828 INFO [stderr] 
Dec 12 02:13:51.828 INFO [stderr] warning: unused import: `std::collections::hash_map::HashMap`
Dec 12 02:13:51.828 INFO [stderr]  --> src/signal.rs:4:5
Dec 12 02:13:51.828 INFO [stderr]   |
Dec 12 02:13:51.828 INFO [stderr] 4 | use std::collections::hash_map::HashMap;
Dec 12 02:13:51.828 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:13:51.828 INFO [stderr] 
Dec 12 02:13:51.872 INFO [stderr] warning: unused variable: `callback`
Dec 12 02:13:51.872 INFO [stderr]   --> src/signal.rs:84:46
Dec 12 02:13:51.872 INFO [stderr]    |
Dec 12 02:13:51.872 INFO [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
Dec 12 02:13:51.872 INFO [stderr]    |                                              ^^^^^^^^ help: consider using `_callback` instead
Dec 12 02:13:51.872 INFO [stderr]    |
Dec 12 02:13:51.872 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 02:13:51.872 INFO [stderr] 
Dec 12 02:13:51.888 INFO [stderr] warning: type alias is never used: `CallbackID`
Dec 12 02:13:51.888 INFO [stderr]  --> src/signal.rs:6:1
Dec 12 02:13:51.888 INFO [stderr]   |
Dec 12 02:13:51.888 INFO [stderr] 6 | pub type CallbackID = usize;
Dec 12 02:13:51.888 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:13:51.888 INFO [stderr]   |
Dec 12 02:13:51.888 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 02:13:51.888 INFO [stderr] 
Dec 12 02:13:51.892 INFO [stderr] warning: unused import: `TypeId`
Dec 12 02:13:51.892 INFO [stderr]  --> src/signal.rs:1:21
Dec 12 02:13:51.892 INFO [stderr]   |
Dec 12 02:13:51.892 INFO [stderr] 1 | use std::any::{Any, TypeId};
Dec 12 02:13:51.892 INFO [stderr]   |                     ^^^^^^
Dec 12 02:13:51.892 INFO [stderr]   |
Dec 12 02:13:51.892 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 02:13:51.892 INFO [stderr] 
Dec 12 02:13:51.892 INFO [stderr] warning: unused import: `std::collections::hash_map::HashMap`
Dec 12 02:13:51.892 INFO [stderr]  --> src/signal.rs:4:5
Dec 12 02:13:51.892 INFO [stderr]   |
Dec 12 02:13:51.892 INFO [stderr] 4 | use std::collections::hash_map::HashMap;
Dec 12 02:13:51.892 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:13:51.892 INFO [stderr] 
Dec 12 02:13:52.008 INFO [stderr] warning: unused variable: `callback`
Dec 12 02:13:52.008 INFO [stderr]   --> src/signal.rs:84:46
Dec 12 02:13:52.008 INFO [stderr]    |
Dec 12 02:13:52.008 INFO [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
Dec 12 02:13:52.008 INFO [stderr]    |                                              ^^^^^^^^ help: consider using `_callback` instead
Dec 12 02:13:52.008 INFO [stderr]    |
Dec 12 02:13:52.008 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 02:13:52.008 INFO [stderr] 
Dec 12 02:13:52.024 INFO [stderr] warning: type alias is never used: `CallbackID`
Dec 12 02:13:52.024 INFO [stderr]  --> src/signal.rs:6:1
Dec 12 02:13:52.024 INFO [stderr]   |
Dec 12 02:13:52.024 INFO [stderr] 6 | pub type CallbackID = usize;
Dec 12 02:13:52.024 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:13:52.024 INFO [stderr]   |
Dec 12 02:13:52.024 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 02:13:52.024 INFO [stderr] 
Dec 12 02:13:52.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Dec 12 02:13:52.074 INFO [stderr] su: No module specific data is present
Dec 12 02:13:52.642 INFO running `"docker" "inspect" "95860e40e1a9ff64ddb5c450e35b8f3147542c8f2bb30dac1b53b318e11d8f49"`
Dec 12 02:13:52.914 INFO running `"docker" "rm" "-f" "95860e40e1a9ff64ddb5c450e35b8f3147542c8f2bb30dac1b53b318e11d8f49"`
Dec 12 02:13:53.108 INFO [stdout] 95860e40e1a9ff64ddb5c450e35b8f3147542c8f2bb30dac1b53b318e11d8f49