Dec 18 05:57:55.034 INFO checking PhilipDaniels/word_chains against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:57:55.034 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:57:55.450 INFO [stdout] d5b9b7d2a4444119e4ced583125ada18118bc30f4af3d7682c55d73a728b33ac
Dec 18 05:57:55.452 INFO running `"docker" "start" "-a" "d5b9b7d2a4444119e4ced583125ada18118bc30f4af3d7682c55d73a728b33ac"`
Dec 18 05:57:57.086 INFO [stderr]     Checking word_chains v0.1.0 (/opt/crater/workdir)
Dec 18 05:57:58.140 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 05:57:58.140 INFO [stderr]  --> src/main.rs:1:1
Dec 18 05:57:58.140 INFO [stderr]   |
Dec 18 05:57:58.140 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 18 05:57:58.140 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 05:57:58.140 INFO [stderr]   |
Dec 18 05:57:58.140 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:57:58.140 INFO [stderr] 
Dec 18 05:57:58.172 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 05:57:58.172 INFO [stderr]  --> src/main.rs:1:1
Dec 18 05:57:58.172 INFO [stderr]   |
Dec 18 05:57:58.172 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 18 05:57:58.172 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 05:57:58.172 INFO [stderr]   |
Dec 18 05:57:58.172 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:57:58.172 INFO [stderr] 
Dec 18 05:57:58.472 INFO [stderr] warning: unused variable: `g`
Dec 18 05:57:58.472 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 18 05:57:58.472 INFO [stderr]    |
Dec 18 05:57:58.472 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 18 05:57:58.472 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 18 05:57:58.472 INFO [stderr]    |
Dec 18 05:57:58.472 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:57:58.472 INFO [stderr] 
Dec 18 05:57:58.504 INFO [stderr] warning: unused variable: `g`
Dec 18 05:57:58.504 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 18 05:57:58.504 INFO [stderr]    |
Dec 18 05:57:58.504 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 18 05:57:58.504 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 18 05:57:58.504 INFO [stderr]    |
Dec 18 05:57:58.504 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:57:58.504 INFO [stderr] 
Dec 18 05:57:58.540 INFO [stderr] warning: field is never used: `word`
Dec 18 05:57:58.540 INFO [stderr]  --> src/graph.rs:4:5
Dec 18 05:57:58.540 INFO [stderr]   |
Dec 18 05:57:58.540 INFO [stderr] 4 |     word: &'word String,
Dec 18 05:57:58.540 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:58.540 INFO [stderr]   |
Dec 18 05:57:58.540 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 05:57:58.540 INFO [stderr] 
Dec 18 05:57:58.540 INFO [stderr] warning: method is never used: `word`
Dec 18 05:57:58.540 INFO [stderr]   --> src/graph.rs:18:5
Dec 18 05:57:58.540 INFO [stderr]    |
Dec 18 05:57:58.540 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 18 05:57:58.540 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:58.540 INFO [stderr] 
Dec 18 05:57:58.680 INFO [stderr] warning: field is never used: `word`
Dec 18 05:57:58.680 INFO [stderr]  --> src/graph.rs:4:5
Dec 18 05:57:58.680 INFO [stderr]   |
Dec 18 05:57:58.680 INFO [stderr] 4 |     word: &'word String,
Dec 18 05:57:58.680 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:58.680 INFO [stderr]   |
Dec 18 05:57:58.680 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 05:57:58.680 INFO [stderr] 
Dec 18 05:57:58.680 INFO [stderr] warning: method is never used: `word`
Dec 18 05:57:58.680 INFO [stderr]   --> src/graph.rs:18:5
Dec 18 05:57:58.680 INFO [stderr]    |
Dec 18 05:57:58.680 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 18 05:57:58.680 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:57:58.680 INFO [stderr] 
Dec 18 05:57:58.732 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Dec 18 05:57:59.466 INFO running `"docker" "inspect" "d5b9b7d2a4444119e4ced583125ada18118bc30f4af3d7682c55d73a728b33ac"`
Dec 18 05:57:59.882 INFO running `"docker" "rm" "-f" "d5b9b7d2a4444119e4ced583125ada18118bc30f4af3d7682c55d73a728b33ac"`
Dec 18 05:58:00.144 INFO [stdout] d5b9b7d2a4444119e4ced583125ada18118bc30f4af3d7682c55d73a728b33ac