Dec 18 05:15:57.893 INFO checking TechnoCrunch/Rust-Multithreading against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:15:57.893 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/TechnoCrunch/Rust-Multithreading:/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 05:15:58.130 INFO [stdout] be58e01eafeac36a9a5bf2d8abaa613149b43bc3ec04495447cbb4418074806c
Dec 18 05:15:58.140 INFO running `"docker" "start" "-a" "be58e01eafeac36a9a5bf2d8abaa613149b43bc3ec04495447cbb4418074806c"`
Dec 18 05:15:59.152 INFO [stderr]     Checking num_cpus v1.2.1
Dec 18 05:15:59.449 INFO [stderr]     Checking multithreads v0.1.0 (/opt/crater/workdir)
Dec 18 05:15:59.656 INFO [stderr] warning: unused import: `std::time`
Dec 18 05:15:59.656 INFO [stderr]  --> src/main.rs:6:5
Dec 18 05:15:59.656 INFO [stderr]   |
Dec 18 05:15:59.656 INFO [stderr] 6 | use std::time;
Dec 18 05:15:59.656 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:15:59.656 INFO [stderr]   |
Dec 18 05:15:59.656 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:15:59.656 INFO [stderr] 
Dec 18 05:15:59.656 INFO [stderr] warning: unused imports: `Cell`, `RefCell`
Dec 18 05:15:59.656 INFO [stderr]  --> src/main.rs:8:17
Dec 18 05:15:59.656 INFO [stderr]   |
Dec 18 05:15:59.656 INFO [stderr] 8 | use std::cell::{Cell, RefCell};
Dec 18 05:15:59.656 INFO [stderr]   |                 ^^^^  ^^^^^^^
Dec 18 05:15:59.656 INFO [stderr] 
Dec 18 05:15:59.688 INFO [stderr] warning: unused import: `std::time`
Dec 18 05:15:59.688 INFO [stderr]  --> src/main.rs:6:5
Dec 18 05:15:59.688 INFO [stderr]   |
Dec 18 05:15:59.688 INFO [stderr] 6 | use std::time;
Dec 18 05:15:59.688 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:15:59.688 INFO [stderr]   |
Dec 18 05:15:59.688 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:15:59.688 INFO [stderr] 
Dec 18 05:15:59.688 INFO [stderr] warning: unused imports: `Cell`, `RefCell`
Dec 18 05:15:59.688 INFO [stderr]  --> src/main.rs:8:17
Dec 18 05:15:59.688 INFO [stderr]   |
Dec 18 05:15:59.688 INFO [stderr] 8 | use std::cell::{Cell, RefCell};
Dec 18 05:15:59.688 INFO [stderr]   |                 ^^^^  ^^^^^^^
Dec 18 05:15:59.688 INFO [stderr] 
Dec 18 05:15:59.748 INFO [stderr] warning: unused variable: `item`
Dec 18 05:15:59.748 INFO [stderr]   --> src/main.rs:38:17
Dec 18 05:15:59.748 INFO [stderr]    |
Dec 18 05:15:59.748 INFO [stderr] 38 |             let item = thread_items.lock().unwrap();
Dec 18 05:15:59.748 INFO [stderr]    |                 ^^^^ help: consider using `_item` instead
Dec 18 05:15:59.748 INFO [stderr]    |
Dec 18 05:15:59.748 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:15:59.748 INFO [stderr] 
Dec 18 05:15:59.798 INFO [stderr] warning: unused variable: `item`
Dec 18 05:15:59.800 INFO [stderr]   --> src/main.rs:38:17
Dec 18 05:15:59.800 INFO [stderr]    |
Dec 18 05:15:59.800 INFO [stderr] 38 |             let item = thread_items.lock().unwrap();
Dec 18 05:15:59.800 INFO [stderr]    |                 ^^^^ help: consider using `_item` instead
Dec 18 05:15:59.800 INFO [stderr]    |
Dec 18 05:15:59.800 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:15:59.800 INFO [stderr] 
Dec 18 05:15:59.892 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 18 05:16:00.295 INFO running `"docker" "inspect" "be58e01eafeac36a9a5bf2d8abaa613149b43bc3ec04495447cbb4418074806c"`
Dec 18 05:16:00.403 INFO running `"docker" "rm" "-f" "be58e01eafeac36a9a5bf2d8abaa613149b43bc3ec04495447cbb4418074806c"`
Dec 18 05:16:00.537 INFO [stdout] be58e01eafeac36a9a5bf2d8abaa613149b43bc3ec04495447cbb4418074806c