Dec 17 12:28:24.738 INFO checking vksmgr/read_file against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 12:28:24.738 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/vksmgr/read_file:/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 12:28:25.568 INFO [stdout] 9375533201d5d535e3e9cf5952d10d1ed7665cf44b2e6872464916fa232dc779
Dec 17 12:28:25.570 INFO running `"docker" "start" "-a" "9375533201d5d535e3e9cf5952d10d1ed7665cf44b2e6872464916fa232dc779"`
Dec 17 12:28:27.284 INFO [stderr]     Checking os v0.1.0 (/opt/crater/workdir)
Dec 17 12:28:27.492 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
Dec 17 12:28:27.492 INFO [stderr]   --> src/main.rs:37:37
Dec 17 12:28:27.492 INFO [stderr]    |
Dec 17 12:28:27.492 INFO [stderr] 37 |                 let line = self.buf.trim_right();
Dec 17 12:28:27.492 INFO [stderr]    |                                     ^^^^^^^^^^
Dec 17 12:28:27.492 INFO [stderr]    |
Dec 17 12:28:27.492 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 12:28:27.492 INFO [stderr] 
Dec 17 12:28:27.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 12:28:27.492 INFO [stderr]  --> src/main.rs:5:5
Dec 17 12:28:27.492 INFO [stderr]   |
Dec 17 12:28:27.492 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 17 12:28:27.492 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:28:27.492 INFO [stderr]   |
Dec 17 12:28:27.492 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 17 12:28:27.492 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 12:28:27.492 INFO [stderr] 
Dec 17 12:28:27.604 INFO [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
Dec 17 12:28:27.604 INFO [stderr]   --> src/main.rs:37:37
Dec 17 12:28:27.604 INFO [stderr]    |
Dec 17 12:28:27.604 INFO [stderr] 37 |                 let line = self.buf.trim_right();
Dec 17 12:28:27.604 INFO [stderr]    |                                     ^^^^^^^^^^
Dec 17 12:28:27.604 INFO [stderr]    |
Dec 17 12:28:27.604 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 12:28:27.604 INFO [stderr] 
Dec 17 12:28:27.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 12:28:27.632 INFO [stderr]  --> src/main.rs:5:5
Dec 17 12:28:27.632 INFO [stderr]   |
Dec 17 12:28:27.632 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 17 12:28:27.632 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:28:27.632 INFO [stderr]   |
Dec 17 12:28:27.632 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 17 12:28:27.632 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 12:28:27.632 INFO [stderr] 
Dec 17 12:28:27.673 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 17 12:28:28.683 INFO running `"docker" "inspect" "9375533201d5d535e3e9cf5952d10d1ed7665cf44b2e6872464916fa232dc779"`
Dec 17 12:28:29.074 INFO running `"docker" "rm" "-f" "9375533201d5d535e3e9cf5952d10d1ed7665cf44b2e6872464916fa232dc779"`
Dec 17 12:28:29.372 INFO [stdout] 9375533201d5d535e3e9cf5952d10d1ed7665cf44b2e6872464916fa232dc779