Dec 18 04:56:56.005 INFO checking VitalyAnkh/mock_object against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:56:56.005 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/VitalyAnkh/mock_object:/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 04:56:56.216 INFO [stdout] e21e199bf38caeba27cd090d00125dd82cb1d3b967e14682e1a64d3c381b20f1
Dec 18 04:56:56.218 INFO running `"docker" "start" "-a" "e21e199bf38caeba27cd090d00125dd82cb1d3b967e14682e1a64d3c381b20f1"`
Dec 18 04:56:56.864 INFO [stderr]     Checking mock_object v0.1.0 (/opt/crater/workdir)
Dec 18 04:56:57.056 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 18 04:56:57.056 INFO [stderr]  --> src/message_passing.rs:1:5
Dec 18 04:56:57.056 INFO [stderr]   |
Dec 18 04:56:57.056 INFO [stderr] 1 | use std::sync::mpsc;
Dec 18 04:56:57.056 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:56:57.056 INFO [stderr]   |
Dec 18 04:56:57.056 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:56:57.056 INFO [stderr] 
Dec 18 04:56:57.060 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 18 04:56:57.061 INFO [stderr]  --> src/message_passing.rs:1:5
Dec 18 04:56:57.061 INFO [stderr]   |
Dec 18 04:56:57.061 INFO [stderr] 1 | use std::sync::mpsc;
Dec 18 04:56:57.061 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:56:57.061 INFO [stderr]   |
Dec 18 04:56:57.061 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:56:57.061 INFO [stderr] 
Dec 18 04:56:57.364 INFO [stderr] warning: unused variable: `rx`
Dec 18 04:56:57.364 INFO [stderr]   --> src/main.rs:27:14
Dec 18 04:56:57.364 INFO [stderr]    |
Dec 18 04:56:57.364 INFO [stderr] 27 |     let (tx, rx) = mpsc::channel();
Dec 18 04:56:57.364 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 18 04:56:57.364 INFO [stderr]    |
Dec 18 04:56:57.364 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:56:57.364 INFO [stderr] 
Dec 18 04:56:57.452 INFO [stderr] warning: unused variable: `rx`
Dec 18 04:56:57.452 INFO [stderr]   --> src/main.rs:27:14
Dec 18 04:56:57.452 INFO [stderr]    |
Dec 18 04:56:57.452 INFO [stderr] 27 |     let (tx, rx) = mpsc::channel();
Dec 18 04:56:57.452 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 18 04:56:57.452 INFO [stderr]    |
Dec 18 04:56:57.452 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:56:57.452 INFO [stderr] 
Dec 18 04:56:57.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 04:56:58.230 INFO running `"docker" "inspect" "e21e199bf38caeba27cd090d00125dd82cb1d3b967e14682e1a64d3c381b20f1"`
Dec 18 04:56:58.374 INFO running `"docker" "rm" "-f" "e21e199bf38caeba27cd090d00125dd82cb1d3b967e14682e1a64d3c381b20f1"`
Dec 18 04:56:58.501 INFO [stdout] e21e199bf38caeba27cd090d00125dd82cb1d3b967e14682e1a64d3c381b20f1