Dec 18 18:48:47.796 INFO checking PolyPoly-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:48:47.796 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/PolyPoly/0.1.0:/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 18:48:48.200 INFO [stdout] b576c58f6d2de50964f570e5f2dfabcc35c75214db9de449c3e51acf615f6653
Dec 18 18:48:48.202 INFO running `"docker" "start" "-a" "b576c58f6d2de50964f570e5f2dfabcc35c75214db9de449c3e51acf615f6653"`
Dec 18 18:48:50.606 INFO [stderr]     Checking PolyPoly v0.1.0 (/opt/crater/workdir)
Dec 18 18:48:51.080 INFO [stderr] warning: unused variable: `w`
Dec 18 18:48:51.080 INFO [stderr]   --> src/main.rs:23:17
Dec 18 18:48:51.080 INFO [stderr]    |
Dec 18 18:48:51.080 INFO [stderr] 23 |             let w = Writer{watchdog: tx.clone()};
Dec 18 18:48:51.080 INFO [stderr]    |                 ^ help: consider using `_w` instead
Dec 18 18:48:51.080 INFO [stderr]    |
Dec 18 18:48:51.080 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:48:51.080 INFO [stderr] 
Dec 18 18:48:51.080 INFO [stderr] warning: unused variable: `i`
Dec 18 18:48:51.080 INFO [stderr]   --> src/main.rs:19:9
Dec 18 18:48:51.080 INFO [stderr]    |
Dec 18 18:48:51.080 INFO [stderr] 19 |     for i in 0..number_thread {
Dec 18 18:48:51.080 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 18 18:48:51.080 INFO [stderr] 
Dec 18 18:48:51.080 INFO [stderr] warning: crate `PolyPoly` should have a snake case name such as `poly_poly`
Dec 18 18:48:51.080 INFO [stderr]   |
Dec 18 18:48:51.080 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 18:48:51.080 INFO [stderr] 
Dec 18 18:48:51.087 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:48:51.087 INFO [stderr]   --> src/main.rs:10:9
Dec 18 18:48:51.087 INFO [stderr]    |
Dec 18 18:48:51.087 INFO [stderr] 10 |         self.watchdog.send(());
Dec 18 18:48:51.087 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:48:51.087 INFO [stderr]    |
Dec 18 18:48:51.087 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 18:48:51.087 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:48:51.087 INFO [stderr] 
Dec 18 18:48:51.216 INFO [stderr] warning: unused variable: `w`
Dec 18 18:48:51.216 INFO [stderr]   --> src/main.rs:23:17
Dec 18 18:48:51.216 INFO [stderr]    |
Dec 18 18:48:51.216 INFO [stderr] 23 |             let w = Writer{watchdog: tx.clone()};
Dec 18 18:48:51.216 INFO [stderr]    |                 ^ help: consider using `_w` instead
Dec 18 18:48:51.216 INFO [stderr]    |
Dec 18 18:48:51.216 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:48:51.216 INFO [stderr] 
Dec 18 18:48:51.216 INFO [stderr] warning: unused variable: `i`
Dec 18 18:48:51.216 INFO [stderr]   --> src/main.rs:19:9
Dec 18 18:48:51.216 INFO [stderr]    |
Dec 18 18:48:51.216 INFO [stderr] 19 |     for i in 0..number_thread {
Dec 18 18:48:51.216 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 18 18:48:51.216 INFO [stderr] 
Dec 18 18:48:51.224 INFO [stderr] warning: crate `PolyPoly` should have a snake case name such as `poly_poly`
Dec 18 18:48:51.224 INFO [stderr]   |
Dec 18 18:48:51.224 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 18:48:51.224 INFO [stderr] 
Dec 18 18:48:51.224 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:48:51.224 INFO [stderr]   --> src/main.rs:10:9
Dec 18 18:48:51.224 INFO [stderr]    |
Dec 18 18:48:51.224 INFO [stderr] 10 |         self.watchdog.send(());
Dec 18 18:48:51.224 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:48:51.224 INFO [stderr]    |
Dec 18 18:48:51.224 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 18:48:51.224 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:48:51.224 INFO [stderr] 
Dec 18 18:48:51.244 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 18:48:52.058 INFO running `"docker" "inspect" "b576c58f6d2de50964f570e5f2dfabcc35c75214db9de449c3e51acf615f6653"`
Dec 18 18:48:52.440 INFO running `"docker" "rm" "-f" "b576c58f6d2de50964f570e5f2dfabcc35c75214db9de449c3e51acf615f6653"`
Dec 18 18:48:52.832 INFO [stdout] b576c58f6d2de50964f570e5f2dfabcc35c75214db9de449c3e51acf615f6653