Dec 04 18:21:00.536 INFO checking garretttaco/rename against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 18:21:00.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 18:21:01.047 INFO [stdout] aea44e403b8491eeb0994bf0710175bb275c9a92db3642fd9e7be4b836d3849f
Dec 04 18:21:01.055 INFO running `"docker" "start" "-a" "aea44e403b8491eeb0994bf0710175bb275c9a92db3642fd9e7be4b836d3849f"`
Dec 04 18:21:02.399 INFO [stderr] usermod: no changes
Dec 04 18:21:02.503 INFO [stderr]     Checking clap v2.29.0
Dec 04 18:21:10.755 INFO [stderr]     Checking rename v0.1.0 (/source)
Dec 04 18:21:11.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 18:21:11.548 INFO [stderr]   --> src/main.rs:20:9
Dec 04 18:21:11.548 INFO [stderr]    |
Dec 04 18:21:11.548 INFO [stderr] 20 |         fs::rename(&file_name, &updated_name);
Dec 04 18:21:11.548 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:21:11.548 INFO [stderr]    |
Dec 04 18:21:11.548 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 18:21:11.548 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 18:21:11.548 INFO [stderr] 
Dec 04 18:21:11.703 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 18:21:11.703 INFO [stderr]   --> src/main.rs:20:9
Dec 04 18:21:11.703 INFO [stderr]    |
Dec 04 18:21:11.703 INFO [stderr] 20 |         fs::rename(&file_name, &updated_name);
Dec 04 18:21:11.703 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:21:11.703 INFO [stderr]    |
Dec 04 18:21:11.703 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 18:21:11.703 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 18:21:11.703 INFO [stderr] 
Dec 04 18:21:11.738 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
Dec 04 18:21:11.739 INFO [stderr] su: No module specific data is present
Dec 04 18:21:12.435 INFO running `"docker" "inspect" "aea44e403b8491eeb0994bf0710175bb275c9a92db3642fd9e7be4b836d3849f"`
Dec 04 18:21:12.751 INFO running `"docker" "rm" "-f" "aea44e403b8491eeb0994bf0710175bb275c9a92db3642fd9e7be4b836d3849f"`
Dec 04 18:21:13.012 INFO [stdout] aea44e403b8491eeb0994bf0710175bb275c9a92db3642fd9e7be4b836d3849f