Dec 19 14:58:34.568 INFO checking jonny7/rust-ownership against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:58:34.569 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jonny7/rust-ownership:/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 14:58:35.076 INFO [stdout] 09d986f9de4c583a042eb954b12fcd8f038ea22a1fb8f57a12a8e258dca2b4df
Dec 19 14:58:35.078 INFO running `"docker" "start" "-a" "09d986f9de4c583a042eb954b12fcd8f038ea22a1fb8f57a12a8e258dca2b4df"`
Dec 19 14:58:36.620 INFO [stderr]     Checking ownership v0.1.0 (/opt/crater/workdir)
Dec 19 14:58:36.948 INFO [stderr] warning: unused variable: `s1`
Dec 19 14:58:36.948 INFO [stderr]   --> src/main.rs:27:9
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr] 27 |     let s1 = gives_ownership();         // gives_ownership moves its return
Dec 19 14:58:36.948 INFO [stderr]    |         ^^ help: consider using `_s1` instead
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:58:36.948 INFO [stderr] 
Dec 19 14:58:36.948 INFO [stderr] warning: unused variable: `s3`
Dec 19 14:58:36.948 INFO [stderr]   --> src/main.rs:32:9
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr] 32 |     let s3 = takes_and_gives_back(s2);  // s2 is moved into
Dec 19 14:58:36.948 INFO [stderr]    |         ^^ help: consider using `_s3` instead
Dec 19 14:58:36.948 INFO [stderr] 
Dec 19 14:58:36.948 INFO [stderr] warning: unused variable: `s1`
Dec 19 14:58:36.948 INFO [stderr]   --> src/main.rs:27:9
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr] 27 |     let s1 = gives_ownership();         // gives_ownership moves its return
Dec 19 14:58:36.948 INFO [stderr]    |         ^^ help: consider using `_s1` instead
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:58:36.948 INFO [stderr] 
Dec 19 14:58:36.948 INFO [stderr] warning: unused variable: `s3`
Dec 19 14:58:36.948 INFO [stderr]   --> src/main.rs:32:9
Dec 19 14:58:36.948 INFO [stderr]    |
Dec 19 14:58:36.948 INFO [stderr] 32 |     let s3 = takes_and_gives_back(s2);  // s2 is moved into
Dec 19 14:58:36.948 INFO [stderr]    |         ^^ help: consider using `_s3` instead
Dec 19 14:58:36.948 INFO [stderr] 
Dec 19 14:58:37.017 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Dec 19 14:58:37.576 INFO running `"docker" "inspect" "09d986f9de4c583a042eb954b12fcd8f038ea22a1fb8f57a12a8e258dca2b4df"`
Dec 19 14:58:38.038 INFO running `"docker" "rm" "-f" "09d986f9de4c583a042eb954b12fcd8f038ea22a1fb8f57a12a8e258dca2b4df"`
Dec 19 14:58:38.452 INFO [stdout] 09d986f9de4c583a042eb954b12fcd8f038ea22a1fb8f57a12a8e258dca2b4df