Dec 17 15:37:50.249 INFO checking sgkim126/rust-worksheet against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:37:50.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/sgkim126/rust-worksheet:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:37:50.727 INFO [stdout] be7c3483b539581c529a5040383490004f3be034e346873cb5e20afb7c4c84d7
Dec 17 15:37:50.732 INFO running `"docker" "start" "-a" "be7c3483b539581c529a5040383490004f3be034e346873cb5e20afb7c4c84d7"`
Dec 17 15:37:52.704 INFO [stderr]     Checking rust-worksheet v0.1.0 (/opt/crater/workdir)
Dec 17 15:37:53.788 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
Dec 17 15:37:53.788 INFO [stderr]   --> src/main.rs:26:52
Dec 17 15:37:53.788 INFO [stderr]    |
Dec 17 15:37:53.788 INFO [stderr] 26 |         .ok().expect("sysroot is not valid UTF-8").trim_right_matches(
Dec 17 15:37:53.788 INFO [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^
Dec 17 15:37:53.788 INFO [stderr]    |
Dec 17 15:37:53.788 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:37:53.788 INFO [stderr] 
Dec 17 15:37:53.836 INFO [stderr] warning: function is never used: `get_sysroot`
Dec 17 15:37:53.836 INFO [stderr]   --> src/main.rs:17:1
Dec 17 15:37:53.836 INFO [stderr]    |
Dec 17 15:37:53.836 INFO [stderr] 17 | fn get_sysroot() -> PathBuf {
Dec 17 15:37:53.836 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:37:53.836 INFO [stderr]    |
Dec 17 15:37:53.836 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:37:53.836 INFO [stderr] 
Dec 17 15:37:54.016 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
Dec 17 15:37:54.016 INFO [stderr]   --> src/main.rs:26:52
Dec 17 15:37:54.016 INFO [stderr]    |
Dec 17 15:37:54.016 INFO [stderr] 26 |         .ok().expect("sysroot is not valid UTF-8").trim_right_matches(
Dec 17 15:37:54.016 INFO [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^
Dec 17 15:37:54.016 INFO [stderr]    |
Dec 17 15:37:54.016 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 15:37:54.016 INFO [stderr] 
Dec 17 15:37:54.068 INFO [stderr] warning: function is never used: `get_sysroot`
Dec 17 15:37:54.068 INFO [stderr]   --> src/main.rs:17:1
Dec 17 15:37:54.068 INFO [stderr]    |
Dec 17 15:37:54.068 INFO [stderr] 17 | fn get_sysroot() -> PathBuf {
Dec 17 15:37:54.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:37:54.068 INFO [stderr]    |
Dec 17 15:37:54.068 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:37:54.068 INFO [stderr] 
Dec 17 15:37:54.116 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Dec 17 15:37:55.012 INFO running `"docker" "inspect" "be7c3483b539581c529a5040383490004f3be034e346873cb5e20afb7c4c84d7"`
Dec 17 15:37:55.462 INFO running `"docker" "rm" "-f" "be7c3483b539581c529a5040383490004f3be034e346873cb5e20afb7c4c84d7"`
Dec 17 15:37:55.907 INFO [stdout] be7c3483b539581c529a5040383490004f3be034e346873cb5e20afb7c4c84d7