Dec 19 15:08:11.835 INFO checking jk-gan/blockchain-rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:08:11.835 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:08:12.248 INFO [stdout] 51c11f4204b206514959523d29eb5c99c0e6925e31254dcaf18bf81a510158e2
Dec 19 15:08:12.251 INFO running `"docker" "start" "-a" "51c11f4204b206514959523d29eb5c99c0e6925e31254dcaf18bf81a510158e2"`
Dec 19 15:08:13.696 INFO [stderr]    Compiling num-traits v0.2.6
Dec 19 15:08:16.860 INFO [stderr]     Checking num-integer v0.1.39
Dec 19 15:08:16.860 INFO [stderr]     Checking num-complex v0.2.1
Dec 19 15:08:17.584 INFO [stderr]     Checking num-bigint v0.2.1
Dec 19 15:08:17.584 INFO [stderr]     Checking num-iter v0.1.37
Dec 19 15:08:17.584 INFO [stderr]     Checking chrono v0.4.6
Dec 19 15:08:20.576 INFO [stderr]     Checking num-rational v0.2.1
Dec 19 15:08:21.293 INFO [stderr]     Checking num v0.2.0
Dec 19 15:08:21.548 INFO [stderr]     Checking blockchain v0.1.0 (/opt/crater/workdir)
Dec 19 15:08:22.024 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 19 15:08:22.024 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 19 15:08:22.024 INFO [stderr]   |
Dec 19 15:08:22.024 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 19 15:08:22.024 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.024 INFO [stderr]   |
Dec 19 15:08:22.024 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:08:22.024 INFO [stderr] 
Dec 19 15:08:22.024 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 19 15:08:22.024 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 19 15:08:22.024 INFO [stderr]   |
Dec 19 15:08:22.024 INFO [stderr] 7 | struct ProofOfWork {
Dec 19 15:08:22.024 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.024 INFO [stderr] 
Dec 19 15:08:22.024 INFO [stderr] warning: method is never used: `new`
Dec 19 15:08:22.024 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 19 15:08:22.024 INFO [stderr]    |
Dec 19 15:08:22.024 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 19 15:08:22.024 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.025 INFO [stderr] 
Dec 19 15:08:22.156 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 19 15:08:22.156 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 19 15:08:22.156 INFO [stderr]   |
Dec 19 15:08:22.156 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 19 15:08:22.156 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.156 INFO [stderr]   |
Dec 19 15:08:22.156 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:08:22.156 INFO [stderr] 
Dec 19 15:08:22.156 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 19 15:08:22.156 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 19 15:08:22.156 INFO [stderr]   |
Dec 19 15:08:22.156 INFO [stderr] 7 | struct ProofOfWork {
Dec 19 15:08:22.156 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.156 INFO [stderr] 
Dec 19 15:08:22.156 INFO [stderr] warning: method is never used: `new`
Dec 19 15:08:22.156 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 19 15:08:22.156 INFO [stderr]    |
Dec 19 15:08:22.157 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 19 15:08:22.157 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:08:22.157 INFO [stderr] 
Dec 19 15:08:22.200 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.64s
Dec 19 15:08:22.763 INFO running `"docker" "inspect" "51c11f4204b206514959523d29eb5c99c0e6925e31254dcaf18bf81a510158e2"`
Dec 19 15:08:23.138 INFO running `"docker" "rm" "-f" "51c11f4204b206514959523d29eb5c99c0e6925e31254dcaf18bf81a510158e2"`
Dec 19 15:08:23.468 INFO [stdout] 51c11f4204b206514959523d29eb5c99c0e6925e31254dcaf18bf81a510158e2