Dec 17 22:15:59.071 INFO checking jk-gan/blockchain-rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:15:59.071 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:15:59.522 INFO [stdout] 73ecf54b4bdfa3d61c6eb94f1490dbeec3410ccd79e982c8df3c1cadf3beac29
Dec 17 22:15:59.527 INFO running `"docker" "start" "-a" "73ecf54b4bdfa3d61c6eb94f1490dbeec3410ccd79e982c8df3c1cadf3beac29"`
Dec 17 22:16:00.988 INFO [stderr]    Compiling num-bigint v0.2.1
Dec 17 22:16:00.988 INFO [stderr]    Compiling num-complex v0.2.1
Dec 17 22:16:00.988 INFO [stderr]     Checking num-iter v0.1.37
Dec 17 22:16:00.988 INFO [stderr]     Checking chrono v0.4.6
Dec 17 22:16:06.237 INFO [stderr]     Checking num-rational v0.2.1
Dec 17 22:16:06.938 INFO [stderr]     Checking num v0.2.0
Dec 17 22:16:07.109 INFO [stderr]     Checking blockchain v0.1.0 (/opt/crater/workdir)
Dec 17 22:16:07.501 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 17 22:16:07.501 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 17 22:16:07.501 INFO [stderr]   |
Dec 17 22:16:07.501 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 17 22:16:07.501 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.501 INFO [stderr]   |
Dec 17 22:16:07.501 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:16:07.501 INFO [stderr] 
Dec 17 22:16:07.501 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 17 22:16:07.501 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 17 22:16:07.501 INFO [stderr]   |
Dec 17 22:16:07.501 INFO [stderr] 7 | struct ProofOfWork {
Dec 17 22:16:07.501 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.501 INFO [stderr] 
Dec 17 22:16:07.501 INFO [stderr] warning: method is never used: `new`
Dec 17 22:16:07.501 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 17 22:16:07.501 INFO [stderr]    |
Dec 17 22:16:07.501 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 17 22:16:07.501 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.501 INFO [stderr] 
Dec 17 22:16:07.572 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 17 22:16:07.572 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 17 22:16:07.572 INFO [stderr]   |
Dec 17 22:16:07.572 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 17 22:16:07.572 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.572 INFO [stderr]   |
Dec 17 22:16:07.572 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:16:07.572 INFO [stderr] 
Dec 17 22:16:07.572 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 17 22:16:07.572 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 17 22:16:07.572 INFO [stderr]   |
Dec 17 22:16:07.572 INFO [stderr] 7 | struct ProofOfWork {
Dec 17 22:16:07.572 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.572 INFO [stderr] 
Dec 17 22:16:07.572 INFO [stderr] warning: method is never used: `new`
Dec 17 22:16:07.572 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 17 22:16:07.572 INFO [stderr]    |
Dec 17 22:16:07.572 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 17 22:16:07.572 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:16:07.573 INFO [stderr] 
Dec 17 22:16:07.625 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
Dec 17 22:16:08.166 INFO running `"docker" "inspect" "73ecf54b4bdfa3d61c6eb94f1490dbeec3410ccd79e982c8df3c1cadf3beac29"`
Dec 17 22:16:08.411 INFO running `"docker" "rm" "-f" "73ecf54b4bdfa3d61c6eb94f1490dbeec3410ccd79e982c8df3c1cadf3beac29"`
Dec 17 22:16:08.640 INFO [stdout] 73ecf54b4bdfa3d61c6eb94f1490dbeec3410ccd79e982c8df3c1cadf3beac29