Dec 18 13:50:45.840 INFO checking mrtreader-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:50:45.840 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/reg/mrtreader/0.1.0:/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 18 13:50:46.128 INFO [stdout] 77160e3e0c8639394048d31910fc9a95dfbc55568c479e355fcebb452b262936
Dec 18 13:50:46.132 INFO running `"docker" "start" "-a" "77160e3e0c8639394048d31910fc9a95dfbc55568c479e355fcebb452b262936"`
Dec 18 13:50:47.853 INFO [stderr]     Checking mrtreader v0.1.0 (/opt/crater/workdir)
Dec 18 13:50:48.277 INFO [stderr] warning: struct is never constructed: `MRTReader`
Dec 18 13:50:48.277 INFO [stderr]   --> src/mrt.rs:11:1
Dec 18 13:50:48.277 INFO [stderr]    |
Dec 18 13:50:48.277 INFO [stderr] 11 | pub struct MRTReader<T> where T: Read
Dec 18 13:50:48.277 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:50:48.277 INFO [stderr]    |
Dec 18 13:50:48.278 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 13:50:48.278 INFO [stderr] 
Dec 18 13:50:48.278 INFO [stderr] warning: struct is never constructed: `MRTHeader`
Dec 18 13:50:48.278 INFO [stderr]   --> src/mrt.rs:17:1
Dec 18 13:50:48.278 INFO [stderr]    |
Dec 18 13:50:48.278 INFO [stderr] 17 | pub struct MRTHeader
Dec 18 13:50:48.278 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Dec 18 13:50:48.278 INFO [stderr] 
Dec 18 13:50:48.278 INFO [stderr] warning: enum is never used: `Record`
Dec 18 13:50:48.278 INFO [stderr]   --> src/mrt.rs:38:1
Dec 18 13:50:48.278 INFO [stderr]    |
Dec 18 13:50:48.278 INFO [stderr] 38 | pub enum Record
Dec 18 13:50:48.278 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 18 13:50:48.278 INFO [stderr] 
Dec 18 13:50:48.278 INFO [stderr] warning: method is never used: `read`
Dec 18 13:50:48.278 INFO [stderr]   --> src/mrt.rs:53:5
Dec 18 13:50:48.278 INFO [stderr]    |
Dec 18 13:50:48.278 INFO [stderr] 53 |     pub fn read(&mut self) -> Result<Record, Error>
Dec 18 13:50:48.278 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:50:48.278 INFO [stderr] 
Dec 18 13:50:48.295 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 18 13:50:48.574 INFO running `"docker" "inspect" "77160e3e0c8639394048d31910fc9a95dfbc55568c479e355fcebb452b262936"`
Dec 18 13:50:48.641 INFO running `"docker" "rm" "-f" "77160e3e0c8639394048d31910fc9a95dfbc55568c479e355fcebb452b262936"`
Dec 18 13:50:48.721 INFO [stdout] 77160e3e0c8639394048d31910fc9a95dfbc55568c479e355fcebb452b262936