Dec 13 15:25:51.252 INFO testing jk-gan/blockchain-rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 15:25:51.252 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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 13 15:25:51.700 INFO [stdout] 651945033bbc126d59210e572d573fa85438cbb72368f4749ea001bd937fd57b
Dec 13 15:25:51.711 INFO running `"docker" "start" "-a" "651945033bbc126d59210e572d573fa85438cbb72368f4749ea001bd937fd57b"`
Dec 13 15:25:52.601 INFO [stderr] usermod: no changes
Dec 13 15:25:52.692 INFO [stderr]    Compiling num-bigint v0.2.1
Dec 13 15:25:52.693 INFO [stderr]    Compiling num-complex v0.2.1
Dec 13 15:25:52.694 INFO [stderr]    Compiling num-iter v0.1.37
Dec 13 15:25:52.695 INFO [stderr]    Compiling chrono v0.4.6
Dec 13 15:25:57.311 INFO [stderr]    Compiling num-rational v0.2.1
Dec 13 15:25:59.263 INFO [stderr]    Compiling num v0.2.0
Dec 13 15:25:59.607 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 15:26:00.586 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 13 15:26:00.586 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 13 15:26:00.586 INFO [stderr]   |
Dec 13 15:26:00.586 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 13 15:26:00.586 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:00.586 INFO [stderr]   |
Dec 13 15:26:00.586 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 15:26:00.586 INFO [stderr] 
Dec 13 15:26:00.586 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 13 15:26:00.586 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 13 15:26:00.586 INFO [stderr]   |
Dec 13 15:26:00.586 INFO [stderr] 7 | struct ProofOfWork {
Dec 13 15:26:00.586 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 15:26:00.586 INFO [stderr] 
Dec 13 15:26:00.586 INFO [stderr] warning: method is never used: `new`
Dec 13 15:26:00.586 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 13 15:26:00.586 INFO [stderr]    |
Dec 13 15:26:00.586 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 13 15:26:00.586 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:00.586 INFO [stderr] 
Dec 13 15:26:01.142 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.51s
Dec 13 15:26:01.147 INFO [stderr] su: No module specific data is present
Dec 13 15:26:01.477 INFO running `"docker" "inspect" "651945033bbc126d59210e572d573fa85438cbb72368f4749ea001bd937fd57b"`
Dec 13 15:26:01.580 INFO running `"docker" "rm" "-f" "651945033bbc126d59210e572d573fa85438cbb72368f4749ea001bd937fd57b"`
Dec 13 15:26:01.707 INFO [stdout] 651945033bbc126d59210e572d573fa85438cbb72368f4749ea001bd937fd57b
Dec 13 15:26:01.710 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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 13 15:26:02.047 INFO [stdout] d7c1286b33cc3031b74391b0c6c3f4000d14d5f008535cf6e6fdd506a6492a4a
Dec 13 15:26:02.048 INFO running `"docker" "start" "-a" "d7c1286b33cc3031b74391b0c6c3f4000d14d5f008535cf6e6fdd506a6492a4a"`
Dec 13 15:26:02.583 INFO [stderr] usermod: no changes
Dec 13 15:26:02.644 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 15:26:03.227 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 13 15:26:03.227 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 13 15:26:03.227 INFO [stderr]   |
Dec 13 15:26:03.227 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 13 15:26:03.227 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.227 INFO [stderr]   |
Dec 13 15:26:03.227 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 15:26:03.227 INFO [stderr] 
Dec 13 15:26:03.227 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 13 15:26:03.227 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 13 15:26:03.227 INFO [stderr]   |
Dec 13 15:26:03.227 INFO [stderr] 7 | struct ProofOfWork {
Dec 13 15:26:03.227 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.227 INFO [stderr] 
Dec 13 15:26:03.227 INFO [stderr] warning: method is never used: `new`
Dec 13 15:26:03.227 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 13 15:26:03.227 INFO [stderr]    |
Dec 13 15:26:03.227 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 13 15:26:03.227 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.227 INFO [stderr] 
Dec 13 15:26:03.495 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 13 15:26:03.499 INFO [stderr] su: No module specific data is present
Dec 13 15:26:04.039 INFO running `"docker" "inspect" "d7c1286b33cc3031b74391b0c6c3f4000d14d5f008535cf6e6fdd506a6492a4a"`
Dec 13 15:26:04.161 INFO running `"docker" "rm" "-f" "d7c1286b33cc3031b74391b0c6c3f4000d14d5f008535cf6e6fdd506a6492a4a"`
Dec 13 15:26:04.267 INFO [stdout] d7c1286b33cc3031b74391b0c6c3f4000d14d5f008535cf6e6fdd506a6492a4a
Dec 13 15:26:04.272 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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 13 15:26:04.470 INFO [stdout] f75a8eb5b9116b34b88f68ccff8bca57c6bf5bbf02910c2940c57d64112a53fa
Dec 13 15:26:04.472 INFO running `"docker" "start" "-a" "f75a8eb5b9116b34b88f68ccff8bca57c6bf5bbf02910c2940c57d64112a53fa"`
Dec 13 15:26:05.063 INFO [stderr] usermod: no changes
Dec 13 15:26:05.139 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 15:26:05.145 INFO [stdout] 
Dec 13 15:26:05.145 INFO [stdout] running 0 tests
Dec 13 15:26:05.145 INFO [stdout] 
Dec 13 15:26:05.145 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 15:26:05.145 INFO [stdout] 
Dec 13 15:26:05.145 INFO [stderr]      Running /target/debug/deps/blockchain-8f9c9b458cc47605
Dec 13 15:26:05.146 INFO [stderr] su: No module specific data is present
Dec 13 15:26:05.584 INFO running `"docker" "inspect" "f75a8eb5b9116b34b88f68ccff8bca57c6bf5bbf02910c2940c57d64112a53fa"`
Dec 13 15:26:05.747 INFO running `"docker" "rm" "-f" "f75a8eb5b9116b34b88f68ccff8bca57c6bf5bbf02910c2940c57d64112a53fa"`
Dec 13 15:26:06.015 INFO [stdout] f75a8eb5b9116b34b88f68ccff8bca57c6bf5bbf02910c2940c57d64112a53fa