Dec 06 01:17:40.329 INFO testing dowoncha/blockchain against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 01:17:40.330 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 01:17:40.852 INFO [stdout] d37343c62e08d6ad6d9f9122071d053d8d77d61428e16ed5a838be29a295df29
Dec 06 01:17:40.854 INFO running `"docker" "start" "-a" "d37343c62e08d6ad6d9f9122071d053d8d77d61428e16ed5a838be29a295df29"`
Dec 06 01:17:41.976 INFO [stderr] usermod: no changes
Dec 06 01:17:42.056 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 06 01:17:42.711 INFO [stderr] warning: method is never used: `blocks`
Dec 06 01:17:42.711 INFO [stderr]   --> src/main.rs:82:5
Dec 06 01:17:42.711 INFO [stderr]    |
Dec 06 01:17:42.711 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 06 01:17:42.711 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:42.711 INFO [stderr]    |
Dec 06 01:17:42.711 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 01:17:42.711 INFO [stderr] 
Dec 06 01:17:42.718 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:17:42.719 INFO [stderr]    --> src/main.rs:131:13
Dec 06 01:17:42.719 INFO [stderr]     |
Dec 06 01:17:42.719 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 06 01:17:42.719 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:42.719 INFO [stderr]     |
Dec 06 01:17:42.719 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 01:17:42.719 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:17:42.719 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 06 01:17:42.719 INFO [stderr] 
Dec 06 01:17:43.411 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
Dec 06 01:17:43.415 INFO [stderr] su: No module specific data is present
Dec 06 01:17:43.830 INFO running `"docker" "inspect" "d37343c62e08d6ad6d9f9122071d053d8d77d61428e16ed5a838be29a295df29"`
Dec 06 01:17:43.914 INFO running `"docker" "rm" "-f" "d37343c62e08d6ad6d9f9122071d053d8d77d61428e16ed5a838be29a295df29"`
Dec 06 01:17:44.048 INFO [stdout] d37343c62e08d6ad6d9f9122071d053d8d77d61428e16ed5a838be29a295df29
Dec 06 01:17:44.050 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 01:17:44.268 INFO [stdout] d827aaed96be413777fdfe1c382343b325a76179934df632e3d6dd4b1d6332ec
Dec 06 01:17:44.273 INFO running `"docker" "start" "-a" "d827aaed96be413777fdfe1c382343b325a76179934df632e3d6dd4b1d6332ec"`
Dec 06 01:17:44.719 INFO [stderr] usermod: no changes
Dec 06 01:17:44.773 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 06 01:17:45.368 INFO [stderr] warning: method is never used: `blocks`
Dec 06 01:17:45.368 INFO [stderr]   --> src/main.rs:82:5
Dec 06 01:17:45.368 INFO [stderr]    |
Dec 06 01:17:45.368 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 06 01:17:45.368 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:45.368 INFO [stderr]    |
Dec 06 01:17:45.368 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 01:17:45.368 INFO [stderr] 
Dec 06 01:17:45.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:17:45.376 INFO [stderr]    --> src/main.rs:131:13
Dec 06 01:17:45.376 INFO [stderr]     |
Dec 06 01:17:45.376 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 06 01:17:45.376 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:45.377 INFO [stderr]     |
Dec 06 01:17:45.377 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 01:17:45.377 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:17:45.377 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 06 01:17:45.377 INFO [stderr] 
Dec 06 01:17:45.848 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 06 01:17:45.851 INFO [stderr] su: No module specific data is present
Dec 06 01:17:46.650 INFO running `"docker" "inspect" "d827aaed96be413777fdfe1c382343b325a76179934df632e3d6dd4b1d6332ec"`
Dec 06 01:17:46.910 INFO running `"docker" "rm" "-f" "d827aaed96be413777fdfe1c382343b325a76179934df632e3d6dd4b1d6332ec"`
Dec 06 01:17:47.264 INFO [stdout] d827aaed96be413777fdfe1c382343b325a76179934df632e3d6dd4b1d6332ec
Dec 06 01:17:47.268 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 01:17:47.760 INFO [stdout] 4c11066a7c59eed52d3061476483d32532e1fdd676cc342884fcef35c4e4cbd2
Dec 06 01:17:47.762 INFO running `"docker" "start" "-a" "4c11066a7c59eed52d3061476483d32532e1fdd676cc342884fcef35c4e4cbd2"`
Dec 06 01:17:48.630 INFO [stderr] usermod: no changes
Dec 06 01:17:48.672 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 01:17:48.688 INFO [stderr]      Running /target/debug/deps/blockchain-a57ecba516a011f2
Dec 06 01:17:48.691 INFO [stderr] su: No module specific data is present
Dec 06 01:17:48.691 INFO [stdout] 
Dec 06 01:17:48.691 INFO [stdout] running 0 tests
Dec 06 01:17:48.691 INFO [stdout] 
Dec 06 01:17:48.691 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 01:17:48.691 INFO [stdout] 
Dec 06 01:17:49.500 INFO running `"docker" "inspect" "4c11066a7c59eed52d3061476483d32532e1fdd676cc342884fcef35c4e4cbd2"`
Dec 06 01:17:49.980 INFO running `"docker" "rm" "-f" "4c11066a7c59eed52d3061476483d32532e1fdd676cc342884fcef35c4e4cbd2"`
Dec 06 01:17:50.240 INFO [stdout] 4c11066a7c59eed52d3061476483d32532e1fdd676cc342884fcef35c4e4cbd2