Dec 17 22:15:59.616 INFO checking jk-gan/blockchain-rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:15:59.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/jk-gan/blockchain-rust:/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 22:16:00.038 INFO [stdout] 847ad4b6d56b84e02d2a5304141d25743c4047895fe89103354cf57b571e4821
Dec 17 22:16:00.040 INFO running `"docker" "start" "-a" "847ad4b6d56b84e02d2a5304141d25743c4047895fe89103354cf57b571e4821"`
Dec 17 22:16:01.516 INFO [stderr]     Checking chrono v0.4.6
Dec 17 22:16:03.568 INFO [stderr]     Checking blockchain v0.1.0 (/opt/crater/workdir)
Dec 17 22:16:04.216 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 17 22:16:04.216 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 17 22:16:04.216 INFO [stderr]   |
Dec 17 22:16:04.216 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 17 22:16:04.216 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.216 INFO [stderr]   |
Dec 17 22:16:04.216 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:16:04.216 INFO [stderr] 
Dec 17 22:16:04.216 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 17 22:16:04.216 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 17 22:16:04.216 INFO [stderr]   |
Dec 17 22:16:04.216 INFO [stderr] 7 | struct ProofOfWork {
Dec 17 22:16:04.216 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.216 INFO [stderr] 
Dec 17 22:16:04.216 INFO [stderr] warning: method is never used: `new`
Dec 17 22:16:04.216 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 17 22:16:04.216 INFO [stderr]    |
Dec 17 22:16:04.216 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 17 22:16:04.216 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.216 INFO [stderr] 
Dec 17 22:16:04.299 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 17 22:16:04.299 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 17 22:16:04.299 INFO [stderr]   |
Dec 17 22:16:04.299 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 17 22:16:04.299 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.299 INFO [stderr]   |
Dec 17 22:16:04.299 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:16:04.299 INFO [stderr] 
Dec 17 22:16:04.299 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 17 22:16:04.299 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 17 22:16:04.299 INFO [stderr]   |
Dec 17 22:16:04.299 INFO [stderr] 7 | struct ProofOfWork {
Dec 17 22:16:04.299 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.299 INFO [stderr] 
Dec 17 22:16:04.299 INFO [stderr] warning: method is never used: `new`
Dec 17 22:16:04.299 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 17 22:16:04.299 INFO [stderr]    |
Dec 17 22:16:04.299 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 17 22:16:04.299 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:04.299 INFO [stderr] 
Dec 17 22:16:04.332 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.98s
Dec 17 22:16:04.923 INFO running `"docker" "inspect" "847ad4b6d56b84e02d2a5304141d25743c4047895fe89103354cf57b571e4821"`
Dec 17 22:16:05.206 INFO running `"docker" "rm" "-f" "847ad4b6d56b84e02d2a5304141d25743c4047895fe89103354cf57b571e4821"`
Dec 17 22:16:05.532 INFO [stdout] 847ad4b6d56b84e02d2a5304141d25743c4047895fe89103354cf57b571e4821