Dec 13 21:02:17.964 INFO testing dowoncha/blockchain against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 21:02:17.964 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 21:02:18.735 INFO [stdout] 4cd951ecd18f6c224e74614e54c524e34b24a5605b55cb8ca592aef5038313d4
Dec 13 21:02:18.743 INFO running `"docker" "start" "-a" "4cd951ecd18f6c224e74614e54c524e34b24a5605b55cb8ca592aef5038313d4"`
Dec 13 21:02:19.861 INFO [stderr] usermod: no changes
Dec 13 21:02:19.963 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 21:02:20.687 INFO [stderr] warning: method is never used: `blocks`
Dec 13 21:02:20.687 INFO [stderr]   --> src/main.rs:82:5
Dec 13 21:02:20.687 INFO [stderr]    |
Dec 13 21:02:20.687 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 13 21:02:20.687 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:02:20.687 INFO [stderr]    |
Dec 13 21:02:20.687 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 21:02:20.687 INFO [stderr] 
Dec 13 21:02:20.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:02:20.701 INFO [stderr]    --> src/main.rs:131:13
Dec 13 21:02:20.701 INFO [stderr]     |
Dec 13 21:02:20.701 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 13 21:02:20.701 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:02:20.701 INFO [stderr]     |
Dec 13 21:02:20.701 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 21:02:20.701 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:02:20.701 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 13 21:02:20.701 INFO [stderr] 
Dec 13 21:02:21.438 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
Dec 13 21:02:21.441 INFO [stderr] su: No module specific data is present
Dec 13 21:02:22.146 INFO running `"docker" "inspect" "4cd951ecd18f6c224e74614e54c524e34b24a5605b55cb8ca592aef5038313d4"`
Dec 13 21:02:22.547 INFO running `"docker" "rm" "-f" "4cd951ecd18f6c224e74614e54c524e34b24a5605b55cb8ca592aef5038313d4"`
Dec 13 21:02:22.819 INFO [stdout] 4cd951ecd18f6c224e74614e54c524e34b24a5605b55cb8ca592aef5038313d4
Dec 13 21:02:22.827 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 21:02:23.255 INFO [stdout] 57a8f31e1f02b94dacea55ec27b615b323348cc4addd843ed1e47cd89f61a25c
Dec 13 21:02:23.260 INFO running `"docker" "start" "-a" "57a8f31e1f02b94dacea55ec27b615b323348cc4addd843ed1e47cd89f61a25c"`
Dec 13 21:02:25.166 INFO [stderr] usermod: no changes
Dec 13 21:02:25.255 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 21:02:26.063 INFO [stderr] warning: method is never used: `blocks`
Dec 13 21:02:26.063 INFO [stderr]   --> src/main.rs:82:5
Dec 13 21:02:26.063 INFO [stderr]    |
Dec 13 21:02:26.063 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 13 21:02:26.063 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:02:26.063 INFO [stderr]    |
Dec 13 21:02:26.063 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 21:02:26.063 INFO [stderr] 
Dec 13 21:02:26.071 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:02:26.071 INFO [stderr]    --> src/main.rs:131:13
Dec 13 21:02:26.071 INFO [stderr]     |
Dec 13 21:02:26.071 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 13 21:02:26.071 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:02:26.071 INFO [stderr]     |
Dec 13 21:02:26.071 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 21:02:26.072 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:02:26.072 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 13 21:02:26.072 INFO [stderr] 
Dec 13 21:02:26.560 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Dec 13 21:02:26.567 INFO [stderr] su: No module specific data is present
Dec 13 21:02:27.811 INFO running `"docker" "inspect" "57a8f31e1f02b94dacea55ec27b615b323348cc4addd843ed1e47cd89f61a25c"`
Dec 13 21:02:28.165 INFO running `"docker" "rm" "-f" "57a8f31e1f02b94dacea55ec27b615b323348cc4addd843ed1e47cd89f61a25c"`
Dec 13 21:02:28.363 INFO [stdout] 57a8f31e1f02b94dacea55ec27b615b323348cc4addd843ed1e47cd89f61a25c
Dec 13 21:02:28.365 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 21:02:28.665 INFO [stdout] dd46a425ad5efacd3630f54f9c3f6f90266ee700795ed900674bb6234a25fd80
Dec 13 21:02:28.673 INFO running `"docker" "start" "-a" "dd46a425ad5efacd3630f54f9c3f6f90266ee700795ed900674bb6234a25fd80"`
Dec 13 21:02:29.499 INFO [stderr] usermod: no changes
Dec 13 21:02:29.587 INFO [stdout] 
Dec 13 21:02:29.587 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 13 21:02:29.587 INFO [stdout] running 0 tests
Dec 13 21:02:29.587 INFO [stderr]      Running /target/debug/deps/blockchain-60c8b868470d2cbb
Dec 13 21:02:29.587 INFO [stdout] 
Dec 13 21:02:29.587 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 21:02:29.587 INFO [stdout] 
Dec 13 21:02:29.591 INFO [stderr] su: No module specific data is present
Dec 13 21:02:30.243 INFO running `"docker" "inspect" "dd46a425ad5efacd3630f54f9c3f6f90266ee700795ed900674bb6234a25fd80"`
Dec 13 21:02:30.546 INFO running `"docker" "rm" "-f" "dd46a425ad5efacd3630f54f9c3f6f90266ee700795ed900674bb6234a25fd80"`
Dec 13 21:02:30.825 INFO [stdout] dd46a425ad5efacd3630f54f9c3f6f90266ee700795ed900674bb6234a25fd80