Dec 18 01:56:50.277 INFO checking cyplo/boolean_calculator against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 01:56:50.277 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:56:50.506 INFO [stdout] ebef6b14a05970e3c2edffa06c0f8d0e09930d4b588321f71e365fba672aa3aa
Dec 18 01:56:50.508 INFO running `"docker" "start" "-a" "ebef6b14a05970e3c2edffa06c0f8d0e09930d4b588321f71e365fba672aa3aa"`
Dec 18 01:56:51.388 INFO [stderr]     Checking boolean_calculator v0.1.0 (/opt/crater/workdir)
Dec 18 01:56:51.612 INFO [stderr] warning: unused variable: `text`
Dec 18 01:56:51.612 INFO [stderr]  --> src/lib.rs:7:20
Dec 18 01:56:51.612 INFO [stderr]   |
Dec 18 01:56:51.612 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.612 INFO [stderr]   |                    ^^^^ help: consider using `_text` instead
Dec 18 01:56:51.612 INFO [stderr]   |
Dec 18 01:56:51.612 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 01:56:51.612 INFO [stderr] 
Dec 18 01:56:51.612 INFO [stderr] warning: struct is never constructed: `Calculator`
Dec 18 01:56:51.612 INFO [stderr]  --> src/lib.rs:3:5
Dec 18 01:56:51.612 INFO [stderr]   |
Dec 18 01:56:51.612 INFO [stderr] 3 |     pub struct Calculator {
Dec 18 01:56:51.612 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.612 INFO [stderr]   |
Dec 18 01:56:51.612 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 01:56:51.612 INFO [stderr] 
Dec 18 01:56:51.612 INFO [stderr] warning: method is never used: `new`
Dec 18 01:56:51.612 INFO [stderr]  --> src/lib.rs:7:9
Dec 18 01:56:51.612 INFO [stderr]   |
Dec 18 01:56:51.612 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.612 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.612 INFO [stderr] 
Dec 18 01:56:51.612 INFO [stderr] warning: method is never used: `get_result`
Dec 18 01:56:51.612 INFO [stderr]   --> src/lib.rs:11:9
Dec 18 01:56:51.612 INFO [stderr]    |
Dec 18 01:56:51.612 INFO [stderr] 11 |         pub fn get_result(&self) -> bool {
Dec 18 01:56:51.612 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:56:51.612 INFO [stderr] 
Dec 18 01:56:51.628 INFO [stderr] warning: unused variable: `text`
Dec 18 01:56:51.628 INFO [stderr]  --> src/lib.rs:7:20
Dec 18 01:56:51.628 INFO [stderr]   |
Dec 18 01:56:51.628 INFO [stderr] 7 |         pub fn new(text: &str) -> Calculator {
Dec 18 01:56:51.628 INFO [stderr]   |                    ^^^^ help: consider using `_text` instead
Dec 18 01:56:51.628 INFO [stderr]   |
Dec 18 01:56:51.628 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 01:56:51.628 INFO [stderr] 
Dec 18 01:56:51.961 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 18 01:56:52.420 INFO running `"docker" "inspect" "ebef6b14a05970e3c2edffa06c0f8d0e09930d4b588321f71e365fba672aa3aa"`
Dec 18 01:56:52.646 INFO running `"docker" "rm" "-f" "ebef6b14a05970e3c2edffa06c0f8d0e09930d4b588321f71e365fba672aa3aa"`
Dec 18 01:56:52.744 INFO [stdout] ebef6b14a05970e3c2edffa06c0f8d0e09930d4b588321f71e365fba672aa3aa