Dec 05 00:39:57.018 INFO checking PhilipDaniels/word_chains against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 00:39:57.018 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 00:39:57.557 INFO [stdout] d1bd0bbb6ec43c28071f42675644a4c6093948dbf1e8b106cbc4ad07e1ac6175
Dec 05 00:39:57.563 INFO running `"docker" "start" "-a" "d1bd0bbb6ec43c28071f42675644a4c6093948dbf1e8b106cbc4ad07e1ac6175"`
Dec 05 00:39:58.738 INFO [stderr] usermod: no changes
Dec 05 00:39:58.891 INFO [stderr]     Checking word_chains v0.1.0 (/source)
Dec 05 00:40:00.699 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 00:40:00.699 INFO [stderr]  --> src/main.rs:1:1
Dec 05 00:40:00.699 INFO [stderr]   |
Dec 05 00:40:00.700 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 05 00:40:00.700 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 00:40:00.700 INFO [stderr]   |
Dec 05 00:40:00.700 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:40:00.701 INFO [stderr] 
Dec 05 00:40:00.818 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 00:40:00.818 INFO [stderr]  --> src/main.rs:1:1
Dec 05 00:40:00.818 INFO [stderr]   |
Dec 05 00:40:00.818 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 05 00:40:00.818 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 00:40:00.819 INFO [stderr]   |
Dec 05 00:40:00.819 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:40:00.819 INFO [stderr] 
Dec 05 00:40:00.935 INFO [stderr] warning: unused variable: `g`
Dec 05 00:40:00.935 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 05 00:40:00.935 INFO [stderr]    |
Dec 05 00:40:00.935 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 05 00:40:00.935 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 05 00:40:00.935 INFO [stderr]    |
Dec 05 00:40:00.935 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:40:00.935 INFO [stderr] 
Dec 05 00:40:01.003 INFO [stderr] warning: unused variable: `g`
Dec 05 00:40:01.003 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 05 00:40:01.003 INFO [stderr]    |
Dec 05 00:40:01.003 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 05 00:40:01.003 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 05 00:40:01.003 INFO [stderr]    |
Dec 05 00:40:01.003 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:40:01.003 INFO [stderr] 
Dec 05 00:40:01.015 INFO [stderr] warning: field is never used: `word`
Dec 05 00:40:01.015 INFO [stderr]  --> src/graph.rs:4:5
Dec 05 00:40:01.015 INFO [stderr]   |
Dec 05 00:40:01.015 INFO [stderr] 4 |     word: &'word String,
Dec 05 00:40:01.015 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:01.015 INFO [stderr]   |
Dec 05 00:40:01.015 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 00:40:01.015 INFO [stderr] 
Dec 05 00:40:01.015 INFO [stderr] warning: method is never used: `word`
Dec 05 00:40:01.015 INFO [stderr]   --> src/graph.rs:18:5
Dec 05 00:40:01.015 INFO [stderr]    |
Dec 05 00:40:01.015 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 05 00:40:01.015 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:01.015 INFO [stderr] 
Dec 05 00:40:01.083 INFO [stderr] warning: field is never used: `word`
Dec 05 00:40:01.083 INFO [stderr]  --> src/graph.rs:4:5
Dec 05 00:40:01.083 INFO [stderr]   |
Dec 05 00:40:01.083 INFO [stderr] 4 |     word: &'word String,
Dec 05 00:40:01.083 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:01.083 INFO [stderr]   |
Dec 05 00:40:01.083 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 00:40:01.083 INFO [stderr] 
Dec 05 00:40:01.083 INFO [stderr] warning: method is never used: `word`
Dec 05 00:40:01.083 INFO [stderr]   --> src/graph.rs:18:5
Dec 05 00:40:01.083 INFO [stderr]    |
Dec 05 00:40:01.083 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 05 00:40:01.083 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:40:01.083 INFO [stderr] 
Dec 05 00:40:01.121 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
Dec 05 00:40:01.139 INFO [stderr] su: No module specific data is present
Dec 05 00:40:02.113 INFO running `"docker" "inspect" "d1bd0bbb6ec43c28071f42675644a4c6093948dbf1e8b106cbc4ad07e1ac6175"`
Dec 05 00:40:02.464 INFO running `"docker" "rm" "-f" "d1bd0bbb6ec43c28071f42675644a4c6093948dbf1e8b106cbc4ad07e1ac6175"`
Dec 05 00:40:02.818 INFO [stdout] d1bd0bbb6ec43c28071f42675644a4c6093948dbf1e8b106cbc4ad07e1ac6175