Nov 28 07:59:02.944 INFO checking cemozerr/Rust-Cash-Register against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 07:59:02.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 07:59:03.462 INFO [stdout] 928c6bb571636f979d05f0fd28ed1c6e1996d40381d90cc536c597612c2b7001
Nov 28 07:59:03.466 INFO running `"docker" "start" "-a" "928c6bb571636f979d05f0fd28ed1c6e1996d40381d90cc536c597612c2b7001"`
Nov 28 07:59:04.760 INFO [stderr] usermod: no changes
Nov 28 07:59:04.868 INFO [stderr]     Checking cash_register v0.1.0 (/source)
Nov 28 07:59:05.308 INFO [stderr] warning: unused import: `Read`
Nov 28 07:59:05.308 INFO [stderr]  --> src/main.rs:5:21
Nov 28 07:59:05.308 INFO [stderr]   |
Nov 28 07:59:05.308 INFO [stderr] 5 | use std::io::{self, Read};
Nov 28 07:59:05.308 INFO [stderr]   |                     ^^^^
Nov 28 07:59:05.308 INFO [stderr]   |
Nov 28 07:59:05.308 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 07:59:05.308 INFO [stderr] 
Nov 28 07:59:05.424 INFO [stderr] warning: unused import: `Read`
Nov 28 07:59:05.424 INFO [stderr]  --> src/main.rs:5:21
Nov 28 07:59:05.424 INFO [stderr]   |
Nov 28 07:59:05.424 INFO [stderr] 5 | use std::io::{self, Read};
Nov 28 07:59:05.424 INFO [stderr]   |                     ^^^^
Nov 28 07:59:05.424 INFO [stderr]   |
Nov 28 07:59:05.424 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 07:59:05.424 INFO [stderr] 
Nov 28 07:59:05.432 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:59:05.432 INFO [stderr]   --> src/main.rs:80:13
Nov 28 07:59:05.432 INFO [stderr]    |
Nov 28 07:59:05.432 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 28 07:59:05.432 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 28 07:59:05.432 INFO [stderr]    |             |
Nov 28 07:59:05.432 INFO [stderr]    |             help: remove this `mut`
Nov 28 07:59:05.432 INFO [stderr]    |
Nov 28 07:59:05.432 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:59:05.432 INFO [stderr] 
Nov 28 07:59:05.440 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:59:05.440 INFO [stderr]   --> src/main.rs:28:9
Nov 28 07:59:05.440 INFO [stderr]    |
Nov 28 07:59:05.440 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 28 07:59:05.440 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:59:05.440 INFO [stderr]    |
Nov 28 07:59:05.440 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 07:59:05.440 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:59:05.440 INFO [stderr] 
Nov 28 07:59:05.507 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:59:05.507 INFO [stderr]   --> src/main.rs:80:13
Nov 28 07:59:05.507 INFO [stderr]    |
Nov 28 07:59:05.507 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 28 07:59:05.507 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 28 07:59:05.507 INFO [stderr]    |             |
Nov 28 07:59:05.507 INFO [stderr]    |             help: remove this `mut`
Nov 28 07:59:05.507 INFO [stderr]    |
Nov 28 07:59:05.507 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:59:05.507 INFO [stderr] 
Nov 28 07:59:05.520 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:59:05.520 INFO [stderr]   --> src/main.rs:28:9
Nov 28 07:59:05.520 INFO [stderr]    |
Nov 28 07:59:05.520 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 28 07:59:05.520 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:59:05.520 INFO [stderr]    |
Nov 28 07:59:05.520 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 07:59:05.520 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:59:05.520 INFO [stderr] 
Nov 28 07:59:05.521 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Nov 28 07:59:05.528 INFO [stderr] su: No module specific data is present
Nov 28 07:59:06.334 INFO running `"docker" "inspect" "928c6bb571636f979d05f0fd28ed1c6e1996d40381d90cc536c597612c2b7001"`
Nov 28 07:59:06.662 INFO running `"docker" "rm" "-f" "928c6bb571636f979d05f0fd28ed1c6e1996d40381d90cc536c597612c2b7001"`
Nov 28 07:59:06.967 INFO [stdout] 928c6bb571636f979d05f0fd28ed1c6e1996d40381d90cc536c597612c2b7001