Dec 12 00:54:48.295 INFO checking PhilipDaniels/word_chains against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 00:54:48.295 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12 00:54:48.848 INFO [stdout] 1cdfe46de36dd5b7fb5a6c984125858f9bceeb0d1fe77f40874cb622db1de429
Dec 12 00:54:48.848 INFO running `"docker" "start" "-a" "1cdfe46de36dd5b7fb5a6c984125858f9bceeb0d1fe77f40874cb622db1de429"`
Dec 12 00:54:50.492 INFO [stderr] usermod: no changes
Dec 12 00:54:50.598 INFO [stderr]     Checking word_chains v0.1.0 (/source)
Dec 12 00:54:52.918 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:54:52.918 INFO [stderr]  --> src/main.rs:1:1
Dec 12 00:54:52.918 INFO [stderr]   |
Dec 12 00:54:52.918 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 12 00:54:52.919 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:54:52.919 INFO [stderr]   |
Dec 12 00:54:52.919 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:54:52.919 INFO [stderr] 
Dec 12 00:54:53.052 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:54:53.052 INFO [stderr]  --> src/main.rs:1:1
Dec 12 00:54:53.052 INFO [stderr]   |
Dec 12 00:54:53.052 INFO [stderr] 1 | #[macro_use] extern crate structopt;
Dec 12 00:54:53.052 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:54:53.052 INFO [stderr]   |
Dec 12 00:54:53.052 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:54:53.052 INFO [stderr] 
Dec 12 00:54:53.180 INFO [stderr] warning: unused variable: `g`
Dec 12 00:54:53.180 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 12 00:54:53.180 INFO [stderr]    |
Dec 12 00:54:53.180 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 12 00:54:53.180 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 12 00:54:53.180 INFO [stderr]    |
Dec 12 00:54:53.180 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:54:53.180 INFO [stderr] 
Dec 12 00:54:53.208 INFO [stderr] warning: unused variable: `g`
Dec 12 00:54:53.208 INFO [stderr]   --> src/letter_differences.rs:36:13
Dec 12 00:54:53.208 INFO [stderr]    |
Dec 12 00:54:53.208 INFO [stderr] 36 |         let g = make_graph(&rwords_for_table);
Dec 12 00:54:53.208 INFO [stderr]    |             ^ help: consider using `_g` instead
Dec 12 00:54:53.208 INFO [stderr]    |
Dec 12 00:54:53.208 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:54:53.208 INFO [stderr] 
Dec 12 00:54:53.264 INFO [stderr] warning: field is never used: `word`
Dec 12 00:54:53.264 INFO [stderr]  --> src/graph.rs:4:5
Dec 12 00:54:53.264 INFO [stderr]   |
Dec 12 00:54:53.264 INFO [stderr] 4 |     word: &'word String,
Dec 12 00:54:53.264 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 12 00:54:53.264 INFO [stderr]   |
Dec 12 00:54:53.264 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 00:54:53.264 INFO [stderr] 
Dec 12 00:54:53.264 INFO [stderr] warning: method is never used: `word`
Dec 12 00:54:53.264 INFO [stderr]   --> src/graph.rs:18:5
Dec 12 00:54:53.264 INFO [stderr]    |
Dec 12 00:54:53.264 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 12 00:54:53.264 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:54:53.264 INFO [stderr] 
Dec 12 00:54:53.288 INFO [stderr] warning: field is never used: `word`
Dec 12 00:54:53.288 INFO [stderr]  --> src/graph.rs:4:5
Dec 12 00:54:53.288 INFO [stderr]   |
Dec 12 00:54:53.288 INFO [stderr] 4 |     word: &'word String,
Dec 12 00:54:53.288 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 12 00:54:53.288 INFO [stderr]   |
Dec 12 00:54:53.288 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 00:54:53.288 INFO [stderr] 
Dec 12 00:54:53.288 INFO [stderr] warning: method is never used: `word`
Dec 12 00:54:53.288 INFO [stderr]   --> src/graph.rs:18:5
Dec 12 00:54:53.288 INFO [stderr]    |
Dec 12 00:54:53.288 INFO [stderr] 18 |     fn word(&self) -> &String {
Dec 12 00:54:53.288 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:54:53.288 INFO [stderr] 
Dec 12 00:54:53.332 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
Dec 12 00:54:53.336 INFO [stderr] su: No module specific data is present
Dec 12 00:54:54.136 INFO running `"docker" "inspect" "1cdfe46de36dd5b7fb5a6c984125858f9bceeb0d1fe77f40874cb622db1de429"`
Dec 12 00:54:54.439 INFO running `"docker" "rm" "-f" "1cdfe46de36dd5b7fb5a6c984125858f9bceeb0d1fe77f40874cb622db1de429"`
Dec 12 00:54:54.680 INFO [stdout] 1cdfe46de36dd5b7fb5a6c984125858f9bceeb0d1fe77f40874cb622db1de429