Dec 13 15:25:51.588 INFO testing jk-gan/blockchain-rust against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 15:25:51.588 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15:25:52.011 INFO [stdout] 592c207d8766854a28684ae1d985ea97c85bd5d75755fb2cbfc8143d4fbddbfc
Dec 13 15:25:52.016 INFO running `"docker" "start" "-a" "592c207d8766854a28684ae1d985ea97c85bd5d75755fb2cbfc8143d4fbddbfc"`
Dec 13 15:25:52.848 INFO [stderr] usermod: no changes
Dec 13 15:25:52.946 INFO [stderr]    Compiling num-traits v0.2.6
Dec 13 15:25:55.938 INFO [stderr]    Compiling num-integer v0.1.39
Dec 13 15:25:55.939 INFO [stderr]    Compiling num-complex v0.2.1
Dec 13 15:25:56.923 INFO [stderr]    Compiling num-bigint v0.2.1
Dec 13 15:25:56.923 INFO [stderr]    Compiling num-iter v0.1.37
Dec 13 15:25:56.923 INFO [stderr]    Compiling chrono v0.4.6
Dec 13 15:26:00.929 INFO [stderr]    Compiling num-rational v0.2.1
Dec 13 15:26:02.481 INFO [stderr]    Compiling num v0.2.0
Dec 13 15:26:02.802 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 15:26:03.412 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 13 15:26:03.412 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 13 15:26:03.412 INFO [stderr]   |
Dec 13 15:26:03.412 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 13 15:26:03.412 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.412 INFO [stderr]   |
Dec 13 15:26:03.412 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 15:26:03.412 INFO [stderr] 
Dec 13 15:26:03.412 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 13 15:26:03.412 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 13 15:26:03.412 INFO [stderr]   |
Dec 13 15:26:03.412 INFO [stderr] 7 | struct ProofOfWork {
Dec 13 15:26:03.412 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.412 INFO [stderr] 
Dec 13 15:26:03.412 INFO [stderr] warning: method is never used: `new`
Dec 13 15:26:03.412 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 13 15:26:03.412 INFO [stderr]    |
Dec 13 15:26:03.412 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 13 15:26:03.412 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:03.412 INFO [stderr] 
Dec 13 15:26:03.999 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.13s
Dec 13 15:26:04.006 INFO [stderr] su: No module specific data is present
Dec 13 15:26:04.344 INFO running `"docker" "inspect" "592c207d8766854a28684ae1d985ea97c85bd5d75755fb2cbfc8143d4fbddbfc"`
Dec 13 15:26:04.472 INFO running `"docker" "rm" "-f" "592c207d8766854a28684ae1d985ea97c85bd5d75755fb2cbfc8143d4fbddbfc"`
Dec 13 15:26:04.613 INFO [stdout] 592c207d8766854a28684ae1d985ea97c85bd5d75755fb2cbfc8143d4fbddbfc
Dec 13 15:26:04.615 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15:26:04.922 INFO [stdout] 5d6ced5296417a8cfe3766d0037112bf9b88440132a0f3d24675910c8b1f05de
Dec 13 15:26:04.924 INFO running `"docker" "start" "-a" "5d6ced5296417a8cfe3766d0037112bf9b88440132a0f3d24675910c8b1f05de"`
Dec 13 15:26:05.649 INFO [stderr] usermod: no changes
Dec 13 15:26:05.708 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 15:26:06.511 INFO [stderr] warning: constant item is never used: `TARGER_BIT`
Dec 13 15:26:06.511 INFO [stderr]  --> src/proof_of_work.rs:5:1
Dec 13 15:26:06.511 INFO [stderr]   |
Dec 13 15:26:06.511 INFO [stderr] 5 | const TARGER_BIT: usize = 24;
Dec 13 15:26:06.511 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:06.511 INFO [stderr]   |
Dec 13 15:26:06.511 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 15:26:06.511 INFO [stderr] 
Dec 13 15:26:06.511 INFO [stderr] warning: struct is never constructed: `ProofOfWork`
Dec 13 15:26:06.511 INFO [stderr]  --> src/proof_of_work.rs:7:1
Dec 13 15:26:06.511 INFO [stderr]   |
Dec 13 15:26:06.511 INFO [stderr] 7 | struct ProofOfWork {
Dec 13 15:26:06.512 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 15:26:06.512 INFO [stderr] 
Dec 13 15:26:06.512 INFO [stderr] warning: method is never used: `new`
Dec 13 15:26:06.512 INFO [stderr]   --> src/proof_of_work.rs:13:5
Dec 13 15:26:06.512 INFO [stderr]    |
Dec 13 15:26:06.512 INFO [stderr] 13 |     fn new(block: Block) -> Self {
Dec 13 15:26:06.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 15:26:06.512 INFO [stderr] 
Dec 13 15:26:06.716 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 13 15:26:06.721 INFO [stderr] su: No module specific data is present
Dec 13 15:26:07.132 INFO running `"docker" "inspect" "5d6ced5296417a8cfe3766d0037112bf9b88440132a0f3d24675910c8b1f05de"`
Dec 13 15:26:07.246 INFO running `"docker" "rm" "-f" "5d6ced5296417a8cfe3766d0037112bf9b88440132a0f3d24675910c8b1f05de"`
Dec 13 15:26:07.378 INFO [stdout] 5d6ced5296417a8cfe3766d0037112bf9b88440132a0f3d24675910c8b1f05de
Dec 13 15:26:07.383 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15:26:07.666 INFO [stdout] 70febb75479740a14a21fbc563650ef551868c3d396ff09861abcec1ffeeb422
Dec 13 15:26:07.668 INFO running `"docker" "start" "-a" "70febb75479740a14a21fbc563650ef551868c3d396ff09861abcec1ffeeb422"`
Dec 13 15:26:08.404 INFO [stderr] usermod: no changes
Dec 13 15:26:08.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 13 15:26:08.543 INFO [stderr]      Running /target/debug/deps/blockchain-cc9b1fc4fcff5ad8
Dec 13 15:26:08.543 INFO [stdout] 
Dec 13 15:26:08.543 INFO [stdout] running 0 tests
Dec 13 15:26:08.543 INFO [stdout] 
Dec 13 15:26:08.543 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 15:26:08.543 INFO [stdout] 
Dec 13 15:26:08.551 INFO [stderr] su: No module specific data is present
Dec 13 15:26:09.210 INFO running `"docker" "inspect" "70febb75479740a14a21fbc563650ef551868c3d396ff09861abcec1ffeeb422"`
Dec 13 15:26:09.402 INFO running `"docker" "rm" "-f" "70febb75479740a14a21fbc563650ef551868c3d396ff09861abcec1ffeeb422"`
Dec 13 15:26:09.611 INFO [stdout] 70febb75479740a14a21fbc563650ef551868c3d396ff09861abcec1ffeeb422