Dec 18 02:38:12.494 INFO checking cemozerr/Rust-Cash-Register against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 02:38:12.494 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/cemozerr/Rust-Cash-Register:/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 02:38:12.920 INFO [stdout] 3bec27101663a16e5be103ff81a5b188d1387346114a105ea4c9a6d13e1e9fab
Dec 18 02:38:12.926 INFO running `"docker" "start" "-a" "3bec27101663a16e5be103ff81a5b188d1387346114a105ea4c9a6d13e1e9fab"`
Dec 18 02:38:14.256 INFO [stderr]     Checking cash_register v0.1.0 (/opt/crater/workdir)
Dec 18 02:38:14.610 INFO [stderr] warning: unused import: `Read`
Dec 18 02:38:14.610 INFO [stderr]  --> src/main.rs:5:21
Dec 18 02:38:14.610 INFO [stderr]   |
Dec 18 02:38:14.610 INFO [stderr] 5 | use std::io::{self, Read};
Dec 18 02:38:14.610 INFO [stderr]   |                     ^^^^
Dec 18 02:38:14.610 INFO [stderr]   |
Dec 18 02:38:14.610 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:38:14.610 INFO [stderr] 
Dec 18 02:38:14.676 INFO [stderr] warning: unused import: `Read`
Dec 18 02:38:14.676 INFO [stderr]  --> src/main.rs:5:21
Dec 18 02:38:14.676 INFO [stderr]   |
Dec 18 02:38:14.676 INFO [stderr] 5 | use std::io::{self, Read};
Dec 18 02:38:14.676 INFO [stderr]   |                     ^^^^
Dec 18 02:38:14.676 INFO [stderr]   |
Dec 18 02:38:14.676 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 02:38:14.676 INFO [stderr] 
Dec 18 02:38:14.744 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:38:14.744 INFO [stderr]   --> src/main.rs:80:13
Dec 18 02:38:14.744 INFO [stderr]    |
Dec 18 02:38:14.744 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Dec 18 02:38:14.744 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 18 02:38:14.744 INFO [stderr]    |             |
Dec 18 02:38:14.744 INFO [stderr]    |             help: remove this `mut`
Dec 18 02:38:14.744 INFO [stderr]    |
Dec 18 02:38:14.744 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 02:38:14.744 INFO [stderr] 
Dec 18 02:38:14.756 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:38:14.756 INFO [stderr]   --> src/main.rs:28:9
Dec 18 02:38:14.756 INFO [stderr]    |
Dec 18 02:38:14.756 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Dec 18 02:38:14.756 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:38:14.756 INFO [stderr]    |
Dec 18 02:38:14.756 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 02:38:14.756 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:38:14.756 INFO [stderr] 
Dec 18 02:38:14.760 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:38:14.760 INFO [stderr]   --> src/main.rs:80:13
Dec 18 02:38:14.760 INFO [stderr]    |
Dec 18 02:38:14.760 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Dec 18 02:38:14.760 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 18 02:38:14.760 INFO [stderr]    |             |
Dec 18 02:38:14.760 INFO [stderr]    |             help: remove this `mut`
Dec 18 02:38:14.760 INFO [stderr]    |
Dec 18 02:38:14.760 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 02:38:14.760 INFO [stderr] 
Dec 18 02:38:14.764 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:38:14.764 INFO [stderr]   --> src/main.rs:28:9
Dec 18 02:38:14.764 INFO [stderr]    |
Dec 18 02:38:14.764 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Dec 18 02:38:14.764 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:38:14.764 INFO [stderr]    |
Dec 18 02:38:14.764 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 02:38:14.764 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:38:14.764 INFO [stderr] 
Dec 18 02:38:14.791 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 18 02:38:15.416 INFO running `"docker" "inspect" "3bec27101663a16e5be103ff81a5b188d1387346114a105ea4c9a6d13e1e9fab"`
Dec 18 02:38:15.676 INFO running `"docker" "rm" "-f" "3bec27101663a16e5be103ff81a5b188d1387346114a105ea4c9a6d13e1e9fab"`
Dec 18 02:38:15.980 INFO [stdout] 3bec27101663a16e5be103ff81a5b188d1387346114a105ea4c9a6d13e1e9fab