Dec 17 22:20:00.038 INFO checking jhwagner/rust_by_example_solutions against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:20:00.038 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/jhwagner/rust_by_example_solutions:/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 17 22:20:00.212 INFO [stdout] 9955c7b718135e4cda4595660f1b93e3f024c1c568a273fe84c2b70c543c45cd
Dec 17 22:20:00.214 INFO running `"docker" "start" "-a" "9955c7b718135e4cda4595660f1b93e3f024c1c568a273fe84c2b70c543c45cd"`
Dec 17 22:20:01.128 INFO [stderr]     Checking rust_by_example_solutions v0.1.0 (/opt/crater/workdir)
Dec 17 22:20:01.408 INFO [stderr] warning: struct is never constructed: `Structure`
Dec 17 22:20:01.408 INFO [stderr]   --> src/bin/1_2_0_formatted_print.rs:27:5
Dec 17 22:20:01.408 INFO [stderr]    |
Dec 17 22:20:01.408 INFO [stderr] 27 |     struct Structure(i32);
Dec 17 22:20:01.408 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:20:01.408 INFO [stderr]    |
Dec 17 22:20:01.409 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 22:20:01.409 INFO [stderr] 
Dec 17 22:20:01.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 17 22:20:02.727 INFO running `"docker" "inspect" "9955c7b718135e4cda4595660f1b93e3f024c1c568a273fe84c2b70c543c45cd"`
Dec 17 22:20:02.962 INFO running `"docker" "rm" "-f" "9955c7b718135e4cda4595660f1b93e3f024c1c568a273fe84c2b70c543c45cd"`
Dec 17 22:20:03.256 INFO [stdout] 9955c7b718135e4cda4595660f1b93e3f024c1c568a273fe84c2b70c543c45cd