Dec 04 10:12:03.296 INFO checking sikinmettugi/wordfreq-rs against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 10:12:03.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 10:12:03.747 INFO [stdout] 131457c81f3cd6464b208aee8394f040056c2e11736f008d7365d8512a2d6307
Dec 04 10:12:03.753 INFO running `"docker" "start" "-a" "131457c81f3cd6464b208aee8394f040056c2e11736f008d7365d8512a2d6307"`
Dec 04 10:12:05.443 INFO [stderr] usermod: no changes
Dec 04 10:12:05.511 INFO [stderr]     Checking wordfreq-rs v0.1.0 (/source)
Dec 04 10:12:06.087 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 04 10:12:06.087 INFO [stderr]   --> src/main.rs:13:1
Dec 04 10:12:06.087 INFO [stderr]    |
Dec 04 10:12:06.087 INFO [stderr] 13 | struct WordCount {
Dec 04 10:12:06.087 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 10:12:06.087 INFO [stderr]    |
Dec 04 10:12:06.087 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 10:12:06.087 INFO [stderr] 
Dec 04 10:12:06.087 INFO [stderr] warning: method is never used: `get_count`
Dec 04 10:12:06.087 INFO [stderr]   --> src/main.rs:19:5
Dec 04 10:12:06.087 INFO [stderr]    |
Dec 04 10:12:06.087 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 04 10:12:06.087 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.087 INFO [stderr] 
Dec 04 10:12:06.087 INFO [stderr] warning: method is never used: `increment`
Dec 04 10:12:06.087 INFO [stderr]   --> src/main.rs:23:5
Dec 04 10:12:06.087 INFO [stderr]    |
Dec 04 10:12:06.087 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 04 10:12:06.087 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.087 INFO [stderr] 
Dec 04 10:12:06.263 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 04 10:12:06.263 INFO [stderr]   --> src/main.rs:13:1
Dec 04 10:12:06.263 INFO [stderr]    |
Dec 04 10:12:06.263 INFO [stderr] 13 | struct WordCount {
Dec 04 10:12:06.263 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 10:12:06.263 INFO [stderr]    |
Dec 04 10:12:06.263 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 10:12:06.263 INFO [stderr] 
Dec 04 10:12:06.263 INFO [stderr] warning: method is never used: `get_count`
Dec 04 10:12:06.263 INFO [stderr]   --> src/main.rs:19:5
Dec 04 10:12:06.263 INFO [stderr]    |
Dec 04 10:12:06.263 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 04 10:12:06.263 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.263 INFO [stderr] 
Dec 04 10:12:06.263 INFO [stderr] warning: method is never used: `increment`
Dec 04 10:12:06.263 INFO [stderr]   --> src/main.rs:23:5
Dec 04 10:12:06.263 INFO [stderr]    |
Dec 04 10:12:06.263 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 04 10:12:06.263 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.263 INFO [stderr] 
Dec 04 10:12:06.299 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 04 10:12:06.302 INFO [stderr] su: No module specific data is present
Dec 04 10:12:07.098 INFO running `"docker" "inspect" "131457c81f3cd6464b208aee8394f040056c2e11736f008d7365d8512a2d6307"`
Dec 04 10:12:07.421 INFO running `"docker" "rm" "-f" "131457c81f3cd6464b208aee8394f040056c2e11736f008d7365d8512a2d6307"`
Dec 04 10:12:07.787 INFO [stdout] 131457c81f3cd6464b208aee8394f040056c2e11736f008d7365d8512a2d6307