Dec 18 05:57:54.249 INFO checking PhilipDaniels/word_chains against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:57:54.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/PhilipDaniels/word_chains:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:57:54.696 INFO [stdout] 1f7d0674bb0d22396832f53bdb3c720f5b00481ccc403edd18c6bdf6f66b7384
Dec 18 05:57:54.702 INFO running `"docker" "start" "-a" "1f7d0674bb0d22396832f53bdb3c720f5b00481ccc403edd18c6bdf6f66b7384"`
Dec 18 05:57:56.508 INFO [stderr]     Checking word_chains v0.1.0 (/opt/crater/workdir)
Dec 18 05:57:57.329 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 05:57:57.329 INFO [stderr]  --> src/main.rs:1:1
Dec 18 05:57:57.329 INFO [stderr]   |
Dec 18 05:57:57.330 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 18 05:57:57.330 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 05:57:57.330 INFO [stderr]   |
Dec 18 05:57:57.330 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:57:57.331 INFO [stderr] 
Dec 18 05:57:57.356 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 05:57:57.356 INFO [stderr]  --> src/main.rs:1:1
Dec 18 05:57:57.356 INFO [stderr]   |
Dec 18 05:57:57.356 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 18 05:57:57.356 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 05:57:57.356 INFO [stderr]   |
Dec 18 05:57:57.356 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:57:57.356 INFO [stderr] 
Dec 18 05:57:57.580 INFO [stderr] warning: unused variable: `g`
Dec 18 05:57:57.580 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 18 05:57:57.580 INFO [stderr]    |
Dec 18 05:57:57.580 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 18 05:57:57.580 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 18 05:57:57.588 INFO [stderr]    |
Dec 18 05:57:57.588 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:57:57.588 INFO [stderr] 
Dec 18 05:57:57.619 INFO [stderr] warning: unused variable: `g`
Dec 18 05:57:57.619 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 18 05:57:57.619 INFO [stderr]    |
Dec 18 05:57:57.619 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 18 05:57:57.619 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 18 05:57:57.619 INFO [stderr]    |
Dec 18 05:57:57.619 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:57:57.619 INFO [stderr] 
Dec 18 05:57:57.639 INFO [stderr] warning: field is never used: `word`
Dec 18 05:57:57.639 INFO [stderr]  --> src/graph.rs:4:5
Dec 18 05:57:57.639 INFO [stderr]   |
Dec 18 05:57:57.639 INFO [stderr] 4 |     word: &'word String,
Dec 18 05:57:57.639 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:57.639 INFO [stderr]   |
Dec 18 05:57:57.648 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 05:57:57.648 INFO [stderr] 
Dec 18 05:57:57.649 INFO [stderr] warning: method is never used: `word`
Dec 18 05:57:57.649 INFO [stderr]   --> src/graph.rs:18:5
Dec 18 05:57:57.649 INFO [stderr]    |
Dec 18 05:57:57.649 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 18 05:57:57.649 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:57.649 INFO [stderr] 
Dec 18 05:57:57.716 INFO [stderr] warning: field is never used: `word`
Dec 18 05:57:57.716 INFO [stderr]  --> src/graph.rs:4:5
Dec 18 05:57:57.716 INFO [stderr]   |
Dec 18 05:57:57.717 INFO [stderr] 4 |     word: &'word String,
Dec 18 05:57:57.717 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:57.717 INFO [stderr]   |
Dec 18 05:57:57.718 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 05:57:57.718 INFO [stderr] 
Dec 18 05:57:57.718 INFO [stderr] warning: method is never used: `word`
Dec 18 05:57:57.718 INFO [stderr]   --> src/graph.rs:18:5
Dec 18 05:57:57.719 INFO [stderr]    |
Dec 18 05:57:57.719 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 18 05:57:57.719 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:57.719 INFO [stderr] 
Dec 18 05:57:57.757 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
Dec 18 05:57:58.955 INFO running `"docker" "inspect" "1f7d0674bb0d22396832f53bdb3c720f5b00481ccc403edd18c6bdf6f66b7384"`
Dec 18 05:57:59.208 INFO running `"docker" "rm" "-f" "1f7d0674bb0d22396832f53bdb3c720f5b00481ccc403edd18c6bdf6f66b7384"`
Dec 18 05:57:59.491 INFO [stdout] 1f7d0674bb0d22396832f53bdb3c720f5b00481ccc403edd18c6bdf6f66b7384