Dec 17 22:06:49.168 INFO checking jonny7/rust-ownership against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:06:49.168 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:06:49.562 INFO [stdout] 6c20d7a58a2a2ca9eafc8a71a25c05f3f1d09385469761128862fcc218b2dff7
Dec 17 22:06:49.564 INFO running `"docker" "start" "-a" "6c20d7a58a2a2ca9eafc8a71a25c05f3f1d09385469761128862fcc218b2dff7"`
Dec 17 22:06:51.364 INFO [stderr]     Checking ownership v0.1.0 (/opt/crater/workdir)
Dec 17 22:06:51.532 INFO [stderr] warning: unused variable: `s1`
Dec 17 22:06:51.532 INFO [stderr]   --> src/main.rs:27:9
Dec 17 22:06:51.532 INFO [stderr]    |
Dec 17 22:06:51.532 INFO [stderr] 27 |     let s1 = gives_ownership();         // gives_ownership moves its return
Dec 17 22:06:51.532 INFO [stderr]    |         ^^ help: consider using `_s1` instead
Dec 17 22:06:51.532 INFO [stderr]    |
Dec 17 22:06:51.532 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:06:51.532 INFO [stderr] 
Dec 17 22:06:51.532 INFO [stderr] warning: unused variable: `s3`
Dec 17 22:06:51.532 INFO [stderr]   --> src/main.rs:32:9
Dec 17 22:06:51.532 INFO [stderr]    |
Dec 17 22:06:51.532 INFO [stderr] 32 |     let s3 = takes_and_gives_back(s2);  // s2 is moved into
Dec 17 22:06:51.532 INFO [stderr]    |         ^^ help: consider using `_s3` instead
Dec 17 22:06:51.532 INFO [stderr] 
Dec 17 22:06:51.720 INFO [stderr] warning: unused variable: `s1`
Dec 17 22:06:51.720 INFO [stderr]   --> src/main.rs:27:9
Dec 17 22:06:51.720 INFO [stderr]    |
Dec 17 22:06:51.720 INFO [stderr] 27 |     let s1 = gives_ownership();         // gives_ownership moves its return
Dec 17 22:06:51.720 INFO [stderr]    |         ^^ help: consider using `_s1` instead
Dec 17 22:06:51.720 INFO [stderr]    |
Dec 17 22:06:51.720 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:06:51.720 INFO [stderr] 
Dec 17 22:06:51.720 INFO [stderr] warning: unused variable: `s3`
Dec 17 22:06:51.720 INFO [stderr]   --> src/main.rs:32:9
Dec 17 22:06:51.724 INFO [stderr]    |
Dec 17 22:06:51.724 INFO [stderr] 32 |     let s3 = takes_and_gives_back(s2);  // s2 is moved into
Dec 17 22:06:51.724 INFO [stderr]    |         ^^ help: consider using `_s3` instead
Dec 17 22:06:51.724 INFO [stderr] 
Dec 17 22:06:51.789 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 17 22:06:52.404 INFO running `"docker" "inspect" "6c20d7a58a2a2ca9eafc8a71a25c05f3f1d09385469761128862fcc218b2dff7"`
Dec 17 22:06:52.664 INFO running `"docker" "rm" "-f" "6c20d7a58a2a2ca9eafc8a71a25c05f3f1d09385469761128862fcc218b2dff7"`
Dec 17 22:06:52.888 INFO [stdout] 6c20d7a58a2a2ca9eafc8a71a25c05f3f1d09385469761128862fcc218b2dff7