Dec 05 00:39:57.057 INFO checking PhilipDaniels/word_chains against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:39:57.057 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 05 00:39:57.487 INFO [stdout] a44e52392b17da570131307736bfcc00641f5bc77f4b994ef3671752fdfff62d
Dec 05 00:39:57.492 INFO running `"docker" "start" "-a" "a44e52392b17da570131307736bfcc00641f5bc77f4b994ef3671752fdfff62d"`
Dec 05 00:39:58.503 INFO [stderr] usermod: no changes
Dec 05 00:39:58.627 INFO [stderr]     Checking word_chains v0.1.0 (/source)
Dec 05 00:40:00.371 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 00:40:00.371 INFO [stderr]  --> src/main.rs:1:1
Dec 05 00:40:00.372 INFO [stderr]   |
Dec 05 00:40:00.372 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 05 00:40:00.372 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 00:40:00.373 INFO [stderr]   |
Dec 05 00:40:00.373 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:40:00.373 INFO [stderr] 
Dec 05 00:40:00.530 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 00:40:00.530 INFO [stderr]  --> src/main.rs:1:1
Dec 05 00:40:00.530 INFO [stderr]   |
Dec 05 00:40:00.530 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 05 00:40:00.530 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 00:40:00.531 INFO [stderr]   |
Dec 05 00:40:00.531 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:40:00.531 INFO [stderr] 
Dec 05 00:40:00.603 INFO [stderr] warning: unused variable: `g`
Dec 05 00:40:00.603 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 05 00:40:00.603 INFO [stderr]    |
Dec 05 00:40:00.604 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 05 00:40:00.604 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 05 00:40:00.611 INFO [stderr]    |
Dec 05 00:40:00.611 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:40:00.611 INFO [stderr] 
Dec 05 00:40:00.692 INFO [stderr] warning: field is never used: `word`
Dec 05 00:40:00.693 INFO [stderr]  --> src/graph.rs:4:5
Dec 05 00:40:00.693 INFO [stderr]   |
Dec 05 00:40:00.694 INFO [stderr] 4 |     word: &'word String,
Dec 05 00:40:00.694 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:00.694 INFO [stderr]   |
Dec 05 00:40:00.695 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 00:40:00.695 INFO [stderr] 
Dec 05 00:40:00.695 INFO [stderr] warning: method is never used: `word`
Dec 05 00:40:00.695 INFO [stderr]   --> src/graph.rs:18:5
Dec 05 00:40:00.696 INFO [stderr]    |
Dec 05 00:40:00.696 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 05 00:40:00.696 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:00.697 INFO [stderr] 
Dec 05 00:40:00.811 INFO [stderr] warning: unused variable: `g`
Dec 05 00:40:00.811 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 05 00:40:00.812 INFO [stderr]    |
Dec 05 00:40:00.812 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 05 00:40:00.812 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 05 00:40:00.812 INFO [stderr]    |
Dec 05 00:40:00.813 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:40:00.813 INFO [stderr] 
Dec 05 00:40:00.849 INFO [stderr] warning: field is never used: `word`
Dec 05 00:40:00.850 INFO [stderr]  --> src/graph.rs:4:5
Dec 05 00:40:00.850 INFO [stderr]   |
Dec 05 00:40:00.850 INFO [stderr] 4 |     word: &'word String,
Dec 05 00:40:00.851 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:00.851 INFO [stderr]   |
Dec 05 00:40:00.851 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 00:40:00.851 INFO [stderr] 
Dec 05 00:40:00.851 INFO [stderr] warning: method is never used: `word`
Dec 05 00:40:00.852 INFO [stderr]   --> src/graph.rs:18:5
Dec 05 00:40:00.852 INFO [stderr]    |
Dec 05 00:40:00.852 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 05 00:40:00.852 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:00.852 INFO [stderr] 
Dec 05 00:40:00.887 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
Dec 05 00:40:00.892 INFO [stderr] su: No module specific data is present
Dec 05 00:40:01.978 INFO running `"docker" "inspect" "a44e52392b17da570131307736bfcc00641f5bc77f4b994ef3671752fdfff62d"`
Dec 05 00:40:02.413 INFO running `"docker" "rm" "-f" "a44e52392b17da570131307736bfcc00641f5bc77f4b994ef3671752fdfff62d"`
Dec 05 00:40:02.691 INFO [stdout] a44e52392b17da570131307736bfcc00641f5bc77f4b994ef3671752fdfff62d