Dec 19 16:41:46.595 INFO checking garretttaco/rename against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:41:46.595 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/garretttaco/rename:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:41:47.076 INFO [stdout] 3623d5ba75d692b57b5c24134b348e03da52e6fff49dd3f2c5306cbd94480e96
Dec 19 16:41:47.081 INFO running `"docker" "start" "-a" "3623d5ba75d692b57b5c24134b348e03da52e6fff49dd3f2c5306cbd94480e96"`
Dec 19 16:41:48.520 INFO [stderr]     Checking clap v2.29.0
Dec 19 16:41:56.172 INFO [stderr]     Checking rename v0.1.0 (/opt/crater/workdir)
Dec 19 16:41:56.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:41:56.592 INFO [stderr]   --> src/main.rs:20:9
Dec 19 16:41:56.592 INFO [stderr]    |
Dec 19 16:41:56.592 INFO [stderr] 20 |         fs::rename(&file_name, &updated_name);
Dec 19 16:41:56.592 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:41:56.604 INFO [stderr]    |
Dec 19 16:41:56.604 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:41:56.604 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:41:56.604 INFO [stderr] 
Dec 19 16:41:56.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:41:56.652 INFO [stderr]   --> src/main.rs:20:9
Dec 19 16:41:56.652 INFO [stderr]    |
Dec 19 16:41:56.652 INFO [stderr] 20 |         fs::rename(&file_name, &updated_name);
Dec 19 16:41:56.652 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:41:56.652 INFO [stderr]    |
Dec 19 16:41:56.652 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:41:56.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:41:56.652 INFO [stderr] 
Dec 19 16:41:56.728 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.23s
Dec 19 16:41:57.266 INFO running `"docker" "inspect" "3623d5ba75d692b57b5c24134b348e03da52e6fff49dd3f2c5306cbd94480e96"`
Dec 19 16:41:57.562 INFO running `"docker" "rm" "-f" "3623d5ba75d692b57b5c24134b348e03da52e6fff49dd3f2c5306cbd94480e96"`
Dec 19 16:41:57.840 INFO [stdout] 3623d5ba75d692b57b5c24134b348e03da52e6fff49dd3f2c5306cbd94480e96