Dec 11 09:32:49.147 INFO checking sikinmettugi/wordfreq-rs against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 09:32:49.148 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 09:32:49.524 INFO [stdout] f18524ce98b2611a3fc1e652c050829344e1a85a7b286be67b43200408f73135
Dec 11 09:32:49.530 INFO running `"docker" "start" "-a" "f18524ce98b2611a3fc1e652c050829344e1a85a7b286be67b43200408f73135"`
Dec 11 09:32:50.187 INFO [stderr] usermod: no changes
Dec 11 09:32:50.213 INFO [stderr]     Checking wordfreq-rs v0.1.0 (/source)
Dec 11 09:32:50.500 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 11 09:32:50.500 INFO [stderr]   --> src/main.rs:13:1
Dec 11 09:32:50.500 INFO [stderr]    |
Dec 11 09:32:50.500 INFO [stderr] 13 | struct WordCount {
Dec 11 09:32:50.500 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 11 09:32:50.500 INFO [stderr]    |
Dec 11 09:32:50.500 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:32:50.500 INFO [stderr] 
Dec 11 09:32:50.500 INFO [stderr] warning: method is never used: `get_count`
Dec 11 09:32:50.500 INFO [stderr]   --> src/main.rs:19:5
Dec 11 09:32:50.500 INFO [stderr]    |
Dec 11 09:32:50.500 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 11 09:32:50.500 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:32:50.500 INFO [stderr] 
Dec 11 09:32:50.500 INFO [stderr] warning: method is never used: `increment`
Dec 11 09:32:50.500 INFO [stderr]   --> src/main.rs:23:5
Dec 11 09:32:50.500 INFO [stderr]    |
Dec 11 09:32:50.500 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 11 09:32:50.500 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:32:50.500 INFO [stderr] 
Dec 11 09:32:50.512 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 11 09:32:50.512 INFO [stderr]   --> src/main.rs:13:1
Dec 11 09:32:50.512 INFO [stderr]    |
Dec 11 09:32:50.512 INFO [stderr] 13 | struct WordCount {
Dec 11 09:32:50.512 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 11 09:32:50.512 INFO [stderr]    |
Dec 11 09:32:50.512 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:32:50.512 INFO [stderr] 
Dec 11 09:32:50.512 INFO [stderr] warning: method is never used: `get_count`
Dec 11 09:32:50.512 INFO [stderr]   --> src/main.rs:19:5
Dec 11 09:32:50.512 INFO [stderr]    |
Dec 11 09:32:50.512 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 11 09:32:50.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:32:50.512 INFO [stderr] 
Dec 11 09:32:50.512 INFO [stderr] warning: method is never used: `increment`
Dec 11 09:32:50.512 INFO [stderr]   --> src/main.rs:23:5
Dec 11 09:32:50.512 INFO [stderr]    |
Dec 11 09:32:50.512 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 11 09:32:50.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:32:50.512 INFO [stderr] 
Dec 11 09:32:50.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Dec 11 09:32:50.560 INFO [stderr] su: No module specific data is present
Dec 11 09:32:51.142 INFO running `"docker" "inspect" "f18524ce98b2611a3fc1e652c050829344e1a85a7b286be67b43200408f73135"`
Dec 11 09:32:51.260 INFO running `"docker" "rm" "-f" "f18524ce98b2611a3fc1e652c050829344e1a85a7b286be67b43200408f73135"`
Dec 11 09:32:51.341 INFO [stdout] f18524ce98b2611a3fc1e652c050829344e1a85a7b286be67b43200408f73135