Dec 04 21:09:55.424 INFO checking cemozerr/Rust-Cash-Register against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:09:55.424 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 21:09:56.003 INFO [stdout] 7e3eae2bf9b99edd32ddf0912e44e7d0ad15a1b5d252318304d6fd6209019f93
Dec 04 21:09:56.006 INFO running `"docker" "start" "-a" "7e3eae2bf9b99edd32ddf0912e44e7d0ad15a1b5d252318304d6fd6209019f93"`
Dec 04 21:09:57.188 INFO [stderr] usermod: no changes
Dec 04 21:09:57.283 INFO [stderr]     Checking cash_register v0.1.0 (/source)
Dec 04 21:09:57.797 INFO [stderr] warning: unused import: `Read`
Dec 04 21:09:57.797 INFO [stderr]  --> src/main.rs:5:21
Dec 04 21:09:57.797 INFO [stderr]   |
Dec 04 21:09:57.797 INFO [stderr] 5 | use std::io::{self, Read};
Dec 04 21:09:57.797 INFO [stderr]   |                     ^^^^
Dec 04 21:09:57.797 INFO [stderr]   |
Dec 04 21:09:57.797 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 21:09:57.797 INFO [stderr] 
Dec 04 21:09:57.848 INFO [stderr] warning: unused import: `Read`
Dec 04 21:09:57.848 INFO [stderr]  --> src/main.rs:5:21
Dec 04 21:09:57.848 INFO [stderr]   |
Dec 04 21:09:57.848 INFO [stderr] 5 | use std::io::{self, Read};
Dec 04 21:09:57.848 INFO [stderr]   |                     ^^^^
Dec 04 21:09:57.848 INFO [stderr]   |
Dec 04 21:09:57.848 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 21:09:57.848 INFO [stderr] 
Dec 04 21:09:57.904 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:09:57.904 INFO [stderr]   --> src/main.rs:80:13
Dec 04 21:09:57.904 INFO [stderr]    |
Dec 04 21:09:57.904 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Dec 04 21:09:57.904 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 04 21:09:57.904 INFO [stderr]    |             |
Dec 04 21:09:57.904 INFO [stderr]    |             help: remove this `mut`
Dec 04 21:09:57.904 INFO [stderr]    |
Dec 04 21:09:57.904 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 21:09:57.904 INFO [stderr] 
Dec 04 21:09:57.906 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:09:57.906 INFO [stderr]   --> src/main.rs:80:13
Dec 04 21:09:57.906 INFO [stderr]    |
Dec 04 21:09:57.906 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Dec 04 21:09:57.906 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 04 21:09:57.906 INFO [stderr]    |             |
Dec 04 21:09:57.906 INFO [stderr]    |             help: remove this `mut`
Dec 04 21:09:57.906 INFO [stderr]    |
Dec 04 21:09:57.906 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 21:09:57.906 INFO [stderr] 
Dec 04 21:09:57.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 21:09:57.908 INFO [stderr]   --> src/main.rs:28:9
Dec 04 21:09:57.908 INFO [stderr]    |
Dec 04 21:09:57.908 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Dec 04 21:09:57.908 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:09:57.909 INFO [stderr]    |
Dec 04 21:09:57.909 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 21:09:57.909 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 21:09:57.909 INFO [stderr] 
Dec 04 21:09:57.909 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 21:09:57.909 INFO [stderr]   --> src/main.rs:28:9
Dec 04 21:09:57.909 INFO [stderr]    |
Dec 04 21:09:57.909 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Dec 04 21:09:57.909 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:09:57.909 INFO [stderr]    |
Dec 04 21:09:57.909 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 21:09:57.909 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 21:09:57.909 INFO [stderr] 
Dec 04 21:09:57.936 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 04 21:09:57.943 INFO [stderr] su: No module specific data is present
Dec 04 21:09:58.459 INFO running `"docker" "inspect" "7e3eae2bf9b99edd32ddf0912e44e7d0ad15a1b5d252318304d6fd6209019f93"`
Dec 04 21:09:58.693 INFO running `"docker" "rm" "-f" "7e3eae2bf9b99edd32ddf0912e44e7d0ad15a1b5d252318304d6fd6209019f93"`
Dec 04 21:09:58.867 INFO [stdout] 7e3eae2bf9b99edd32ddf0912e44e7d0ad15a1b5d252318304d6fd6209019f93