Dec 11 23:41:09.426 INFO checking VitalyAnkh/mock_object against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 23:41:09.426 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 23:41:09.932 INFO [stdout] 38fd8b234d183fc1d98b5c9e508358507996022a4e2865bdc547f3de4600caaf
Dec 11 23:41:09.938 INFO running `"docker" "start" "-a" "38fd8b234d183fc1d98b5c9e508358507996022a4e2865bdc547f3de4600caaf"`
Dec 11 23:41:12.240 INFO [stderr] usermod: no changes
Dec 11 23:41:12.316 INFO [stderr]     Checking mock_object v0.1.0 (/source)
Dec 11 23:41:12.976 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 11 23:41:12.976 INFO [stderr]  --> src/message_passing.rs:1:5
Dec 11 23:41:12.976 INFO [stderr]   |
Dec 11 23:41:12.976 INFO [stderr] 1 | use std::sync::mpsc;
Dec 11 23:41:12.976 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:41:12.976 INFO [stderr]   |
Dec 11 23:41:12.976 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:41:12.976 INFO [stderr] 
Dec 11 23:41:13.232 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 11 23:41:13.232 INFO [stderr]  --> src/message_passing.rs:1:5
Dec 11 23:41:13.232 INFO [stderr]   |
Dec 11 23:41:13.232 INFO [stderr] 1 | use std::sync::mpsc;
Dec 11 23:41:13.233 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:41:13.233 INFO [stderr]   |
Dec 11 23:41:13.233 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:41:13.233 INFO [stderr] 
Dec 11 23:41:14.040 INFO [stderr] warning: unused variable: `rx`
Dec 11 23:41:14.040 INFO [stderr]   --> src/main.rs:27:14
Dec 11 23:41:14.040 INFO [stderr]    |
Dec 11 23:41:14.040 INFO [stderr] 27 |     let (tx, rx) = mpsc::channel();
Dec 11 23:41:14.040 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 11 23:41:14.040 INFO [stderr]    |
Dec 11 23:41:14.040 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:41:14.040 INFO [stderr] 
Dec 11 23:41:14.040 INFO [stderr] warning: unused variable: `rx`
Dec 11 23:41:14.040 INFO [stderr]   --> src/main.rs:27:14
Dec 11 23:41:14.040 INFO [stderr]    |
Dec 11 23:41:14.040 INFO [stderr] 27 |     let (tx, rx) = mpsc::channel();
Dec 11 23:41:14.040 INFO [stderr]    |              ^^ help: consider using `_rx` instead
Dec 11 23:41:14.040 INFO [stderr]    |
Dec 11 23:41:14.040 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:41:14.040 INFO [stderr] 
Dec 11 23:41:14.096 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
Dec 11 23:41:14.096 INFO [stderr] su: No module specific data is present
Dec 11 23:41:14.944 INFO running `"docker" "inspect" "38fd8b234d183fc1d98b5c9e508358507996022a4e2865bdc547f3de4600caaf"`
Dec 11 23:41:15.214 INFO running `"docker" "rm" "-f" "38fd8b234d183fc1d98b5c9e508358507996022a4e2865bdc547f3de4600caaf"`
Dec 11 23:41:15.544 INFO [stdout] 38fd8b234d183fc1d98b5c9e508358507996022a4e2865bdc547f3de4600caaf