Nov 30 05:32:29.233 INFO checking cemozerr/Rust-Cash-Register against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 05:32:29.233 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 05:32:29.772 INFO [stdout] 369b418fbc1642500dd7d6180e192d6b949ae88c0b789a7f88c08d124da4d8ca
Nov 30 05:32:29.772 INFO running `"docker" "start" "-a" "369b418fbc1642500dd7d6180e192d6b949ae88c0b789a7f88c08d124da4d8ca"`
Nov 30 05:32:31.037 INFO [stderr] usermod: no changes
Nov 30 05:32:31.116 INFO [stderr]     Checking cash_register v0.1.0 (/source)
Nov 30 05:32:31.591 INFO [stderr] warning: unused import: `Read`
Nov 30 05:32:31.591 INFO [stderr]  --> src/main.rs:5:21
Nov 30 05:32:31.591 INFO [stderr]   |
Nov 30 05:32:31.591 INFO [stderr] 5 | use std::io::{self, Read};
Nov 30 05:32:31.591 INFO [stderr]   |                     ^^^^
Nov 30 05:32:31.591 INFO [stderr]   |
Nov 30 05:32:31.591 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 05:32:31.591 INFO [stderr] 
Nov 30 05:32:31.675 INFO [stderr] warning: unused import: `Read`
Nov 30 05:32:31.675 INFO [stderr]  --> src/main.rs:5:21
Nov 30 05:32:31.675 INFO [stderr]   |
Nov 30 05:32:31.675 INFO [stderr] 5 | use std::io::{self, Read};
Nov 30 05:32:31.675 INFO [stderr]   |                     ^^^^
Nov 30 05:32:31.675 INFO [stderr]   |
Nov 30 05:32:31.675 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 05:32:31.675 INFO [stderr] 
Nov 30 05:32:31.701 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:32:31.701 INFO [stderr]   --> src/main.rs:80:13
Nov 30 05:32:31.701 INFO [stderr]    |
Nov 30 05:32:31.701 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 30 05:32:31.702 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 30 05:32:31.702 INFO [stderr]    |             |
Nov 30 05:32:31.702 INFO [stderr]    |             help: remove this `mut`
Nov 30 05:32:31.702 INFO [stderr]    |
Nov 30 05:32:31.702 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 05:32:31.702 INFO [stderr] 
Nov 30 05:32:31.702 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 05:32:31.702 INFO [stderr]   --> src/main.rs:28:9
Nov 30 05:32:31.702 INFO [stderr]    |
Nov 30 05:32:31.702 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 30 05:32:31.702 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 05:32:31.702 INFO [stderr]    |
Nov 30 05:32:31.702 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 05:32:31.702 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 05:32:31.702 INFO [stderr] 
Nov 30 05:32:31.776 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:32:31.776 INFO [stderr]   --> src/main.rs:80:13
Nov 30 05:32:31.776 INFO [stderr]    |
Nov 30 05:32:31.776 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 30 05:32:31.776 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 30 05:32:31.776 INFO [stderr]    |             |
Nov 30 05:32:31.776 INFO [stderr]    |             help: remove this `mut`
Nov 30 05:32:31.776 INFO [stderr]    |
Nov 30 05:32:31.776 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 05:32:31.776 INFO [stderr] 
Nov 30 05:32:31.776 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 05:32:31.776 INFO [stderr]   --> src/main.rs:28:9
Nov 30 05:32:31.776 INFO [stderr]    |
Nov 30 05:32:31.776 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 30 05:32:31.776 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 05:32:31.776 INFO [stderr]    |
Nov 30 05:32:31.776 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 05:32:31.776 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 05:32:31.776 INFO [stderr] 
Nov 30 05:32:31.820 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Nov 30 05:32:31.820 INFO [stderr] su: No module specific data is present
Nov 30 05:32:32.330 INFO running `"docker" "inspect" "369b418fbc1642500dd7d6180e192d6b949ae88c0b789a7f88c08d124da4d8ca"`
Nov 30 05:32:32.600 INFO running `"docker" "rm" "-f" "369b418fbc1642500dd7d6180e192d6b949ae88c0b789a7f88c08d124da4d8ca"`
Nov 30 05:32:32.844 INFO [stdout] 369b418fbc1642500dd7d6180e192d6b949ae88c0b789a7f88c08d124da4d8ca