Nov 30 05:32:29.422 INFO checking cemozerr/Rust-Cash-Register against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 05:32:29.422 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 05:32:29.946 INFO [stdout] 246856cb7672abf3e00a14026815d4fbfec9d3c42c92ad460b21b3fec3f3a77b
Nov 30 05:32:29.950 INFO running `"docker" "start" "-a" "246856cb7672abf3e00a14026815d4fbfec9d3c42c92ad460b21b3fec3f3a77b"`
Nov 30 05:32:31.008 INFO [stderr] usermod: no changes
Nov 30 05:32:31.140 INFO [stderr]    Compiling ryu v0.2.5
Nov 30 05:32:32.472 INFO [stderr]     Checking serde_json v1.0.26
Nov 30 05:32:34.980 INFO [stderr]     Checking cash_register v0.1.0 (/source)
Nov 30 05:32:35.732 INFO [stderr] warning: unused import: `Read`
Nov 30 05:32:35.732 INFO [stderr]  --> src/main.rs:5:21
Nov 30 05:32:35.732 INFO [stderr]   |
Nov 30 05:32:35.732 INFO [stderr] 5 | use std::io::{self, Read};
Nov 30 05:32:35.732 INFO [stderr]   |                     ^^^^
Nov 30 05:32:35.732 INFO [stderr]   |
Nov 30 05:32:35.732 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 05:32:35.732 INFO [stderr] 
Nov 30 05:32:35.777 INFO [stderr] warning: unused import: `Read`
Nov 30 05:32:35.777 INFO [stderr]  --> src/main.rs:5:21
Nov 30 05:32:35.777 INFO [stderr]   |
Nov 30 05:32:35.777 INFO [stderr] 5 | use std::io::{self, Read};
Nov 30 05:32:35.777 INFO [stderr]   |                     ^^^^
Nov 30 05:32:35.777 INFO [stderr]   |
Nov 30 05:32:35.777 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 05:32:35.777 INFO [stderr] 
Nov 30 05:32:35.796 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:32:35.796 INFO [stderr]   --> src/main.rs:80:13
Nov 30 05:32:35.797 INFO [stderr]    |
Nov 30 05:32:35.797 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 30 05:32:35.797 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 30 05:32:35.797 INFO [stderr]    |             |
Nov 30 05:32:35.797 INFO [stderr]    |             help: remove this `mut`
Nov 30 05:32:35.797 INFO [stderr]    |
Nov 30 05:32:35.797 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 05:32:35.797 INFO [stderr] 
Nov 30 05:32:35.797 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 05:32:35.797 INFO [stderr]   --> src/main.rs:28:9
Nov 30 05:32:35.797 INFO [stderr]    |
Nov 30 05:32:35.797 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 30 05:32:35.797 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 05:32:35.797 INFO [stderr]    |
Nov 30 05:32:35.797 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 05:32:35.797 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 05:32:35.797 INFO [stderr] 
Nov 30 05:32:35.864 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:32:35.864 INFO [stderr]   --> src/main.rs:80:13
Nov 30 05:32:35.864 INFO [stderr]    |
Nov 30 05:32:35.864 INFO [stderr] 80 |         let mut new_receipt = Receipt{
Nov 30 05:32:35.864 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 30 05:32:35.864 INFO [stderr]    |             |
Nov 30 05:32:35.864 INFO [stderr]    |             help: remove this `mut`
Nov 30 05:32:35.864 INFO [stderr]    |
Nov 30 05:32:35.864 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 05:32:35.864 INFO [stderr] 
Nov 30 05:32:35.864 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 05:32:35.864 INFO [stderr]   --> src/main.rs:28:9
Nov 30 05:32:35.864 INFO [stderr]    |
Nov 30 05:32:35.864 INFO [stderr] 28 |         io::stdin().read_line(&mut buffer);
Nov 30 05:32:35.864 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 05:32:35.864 INFO [stderr]    |
Nov 30 05:32:35.864 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 05:32:35.864 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 05:32:35.864 INFO [stderr] 
Nov 30 05:32:35.892 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.86s
Nov 30 05:32:35.892 INFO [stderr] su: No module specific data is present
Nov 30 05:32:36.439 INFO running `"docker" "inspect" "246856cb7672abf3e00a14026815d4fbfec9d3c42c92ad460b21b3fec3f3a77b"`
Nov 30 05:32:36.666 INFO running `"docker" "rm" "-f" "246856cb7672abf3e00a14026815d4fbfec9d3c42c92ad460b21b3fec3f3a77b"`
Nov 30 05:32:37.020 INFO [stdout] 246856cb7672abf3e00a14026815d4fbfec9d3c42c92ad460b21b3fec3f3a77b