Dec 18 18:49:05.241 INFO checking IMAPServer-0.0.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:49:05.241 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/IMAPServer/0.0.0:/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 18:49:05.509 INFO [stdout] 470fa1826d19b02f7ed7b8f2d5b206be0629e48368d3c43cb8a0e96a9d1f3bc4
Dec 18 18:49:05.514 INFO running `"docker" "start" "-a" "470fa1826d19b02f7ed7b8f2d5b206be0629e48368d3c43cb8a0e96a9d1f3bc4"`
Dec 18 18:49:06.664 INFO [stderr]     Checking config v0.4.1
Dec 18 18:49:07.488 INFO [stderr]     Checking IMAPServer v0.0.0 (/opt/crater/workdir)
Dec 18 18:49:07.980 INFO [stderr] warning: crate `IMAPServer` should have a snake case name such as `imapserver`
Dec 18 18:49:07.980 INFO [stderr]   |
Dec 18 18:49:07.980 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 18:49:07.980 INFO [stderr] 
Dec 18 18:49:07.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:49:07.986 INFO [stderr]  --> src/main.rs:5:5
Dec 18 18:49:07.986 INFO [stderr]   |
Dec 18 18:49:07.986 INFO [stderr] 5 |     helper::get_config().set_default("RFC", "3501");
Dec 18 18:49:07.986 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:49:07.986 INFO [stderr]   |
Dec 18 18:49:07.986 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 18 18:49:07.986 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:49:07.986 INFO [stderr] 
Dec 18 18:49:07.998 INFO [stderr] warning: crate `IMAPServer` should have a snake case name such as `imapserver`
Dec 18 18:49:07.998 INFO [stderr]   |
Dec 18 18:49:07.998 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 18:49:07.998 INFO [stderr] 
Dec 18 18:49:08.012 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:49:08.012 INFO [stderr]  --> src/main.rs:5:5
Dec 18 18:49:08.012 INFO [stderr]   |
Dec 18 18:49:08.012 INFO [stderr] 5 |     helper::get_config().set_default("RFC", "3501");
Dec 18 18:49:08.012 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:49:08.012 INFO [stderr]   |
Dec 18 18:49:08.012 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 18 18:49:08.012 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:49:08.012 INFO [stderr] 
Dec 18 18:49:08.035 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
Dec 18 18:49:08.546 INFO running `"docker" "inspect" "470fa1826d19b02f7ed7b8f2d5b206be0629e48368d3c43cb8a0e96a9d1f3bc4"`
Dec 18 18:49:08.895 INFO running `"docker" "rm" "-f" "470fa1826d19b02f7ed7b8f2d5b206be0629e48368d3c43cb8a0e96a9d1f3bc4"`
Dec 18 18:49:09.042 INFO [stdout] 470fa1826d19b02f7ed7b8f2d5b206be0629e48368d3c43cb8a0e96a9d1f3bc4