Dec 18 01:56:50.217 INFO checking cyplo/boolean_calculator against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:56:50.218 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/cyplo/boolean_calculator:/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 01:56:50.460 INFO [stdout] ab21dbfab8a6aeede3ea9036731ff7ed32f54d99d6484c0eb39486290e8006ef
Dec 18 01:56:50.462 INFO running `"docker" "start" "-a" "ab21dbfab8a6aeede3ea9036731ff7ed32f54d99d6484c0eb39486290e8006ef"`
Dec 18 01:56:51.325 INFO [stderr]     Checking boolean_calculator v0.1.0 (/opt/crater/workdir)
Dec 18 01:56:51.538 INFO [stderr] warning: unused variable: `text`
Dec 18 01:56:51.538 INFO [stderr]  --> src/lib.rs:7:20
Dec 18 01:56:51.538 INFO [stderr]   |
Dec 18 01:56:51.538 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.538 INFO [stderr]   |                    ^^^^ help: consider using `_text` instead
Dec 18 01:56:51.538 INFO [stderr]   |
Dec 18 01:56:51.538 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 01:56:51.538 INFO [stderr] 
Dec 18 01:56:51.538 INFO [stderr] warning: struct is never constructed: `Calculator`
Dec 18 01:56:51.538 INFO [stderr]  --> src/lib.rs:3:5
Dec 18 01:56:51.538 INFO [stderr]   |
Dec 18 01:56:51.538 INFO [stderr] 3 |     pub struct Calculator {
Dec 18 01:56:51.538 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.538 INFO [stderr]   |
Dec 18 01:56:51.538 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 01:56:51.538 INFO [stderr] 
Dec 18 01:56:51.538 INFO [stderr] warning: method is never used: `new`
Dec 18 01:56:51.538 INFO [stderr]  --> src/lib.rs:7:9
Dec 18 01:56:51.538 INFO [stderr]   |
Dec 18 01:56:51.538 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.538 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.538 INFO [stderr] 
Dec 18 01:56:51.538 INFO [stderr] warning: method is never used: `get_result`
Dec 18 01:56:51.539 INFO [stderr]   --> src/lib.rs:11:9
Dec 18 01:56:51.539 INFO [stderr]    |
Dec 18 01:56:51.539 INFO [stderr] 11 |         pub fn get_result(&self) -> bool {
Dec 18 01:56:51.539 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.539 INFO [stderr] 
Dec 18 01:56:51.652 INFO [stderr] warning: unused variable: `text`
Dec 18 01:56:51.652 INFO [stderr]  --> src/lib.rs:7:20
Dec 18 01:56:51.652 INFO [stderr]   |
Dec 18 01:56:51.652 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.652 INFO [stderr]   |                    ^^^^ help: consider using `_text` instead
Dec 18 01:56:51.652 INFO [stderr]   |
Dec 18 01:56:51.652 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 01:56:51.652 INFO [stderr] 
Dec 18 01:56:51.949 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 18 01:56:52.364 INFO running `"docker" "inspect" "ab21dbfab8a6aeede3ea9036731ff7ed32f54d99d6484c0eb39486290e8006ef"`
Dec 18 01:56:52.590 INFO running `"docker" "rm" "-f" "ab21dbfab8a6aeede3ea9036731ff7ed32f54d99d6484c0eb39486290e8006ef"`
Dec 18 01:56:52.749 INFO [stdout] ab21dbfab8a6aeede3ea9036731ff7ed32f54d99d6484c0eb39486290e8006ef