Dec 06 01:17:36.849 INFO testing dowoncha/blockchain against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 01:17:36.849 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 01:17:37.360 INFO [stdout] 0bdbd621dd882e1d4e053c5fcb894fccea10bbfa4f1c11108e4950140604338f
Dec 06 01:17:37.362 INFO running `"docker" "start" "-a" "0bdbd621dd882e1d4e053c5fcb894fccea10bbfa4f1c11108e4950140604338f"`
Dec 06 01:17:38.536 INFO [stderr] usermod: no changes
Dec 06 01:17:38.640 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 06 01:17:39.377 INFO [stderr] warning: method is never used: `blocks`
Dec 06 01:17:39.377 INFO [stderr]   --> src/main.rs:82:5
Dec 06 01:17:39.377 INFO [stderr]    |
Dec 06 01:17:39.378 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 06 01:17:39.378 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:39.378 INFO [stderr]    |
Dec 06 01:17:39.378 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 01:17:39.379 INFO [stderr] 
Dec 06 01:17:39.384 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:17:39.384 INFO [stderr]    --> src/main.rs:131:13
Dec 06 01:17:39.384 INFO [stderr]     |
Dec 06 01:17:39.384 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 06 01:17:39.384 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:39.384 INFO [stderr]     |
Dec 06 01:17:39.384 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 01:17:39.384 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:17:39.384 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 01:17:39.384 INFO [stderr] 
Dec 06 01:17:40.342 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
Dec 06 01:17:40.348 INFO [stderr] su: No module specific data is present
Dec 06 01:17:41.236 INFO running `"docker" "inspect" "0bdbd621dd882e1d4e053c5fcb894fccea10bbfa4f1c11108e4950140604338f"`
Dec 06 01:17:41.563 INFO running `"docker" "rm" "-f" "0bdbd621dd882e1d4e053c5fcb894fccea10bbfa4f1c11108e4950140604338f"`
Dec 06 01:17:41.784 INFO [stdout] 0bdbd621dd882e1d4e053c5fcb894fccea10bbfa4f1c11108e4950140604338f
Dec 06 01:17:41.792 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 01:17:42.108 INFO [stdout] f8080e97a5a7ea487eca8d37f7165fe53cc756b47da747a4db7193795e74ce9b
Dec 06 01:17:42.112 INFO running `"docker" "start" "-a" "f8080e97a5a7ea487eca8d37f7165fe53cc756b47da747a4db7193795e74ce9b"`
Dec 06 01:17:42.761 INFO [stderr] usermod: no changes
Dec 06 01:17:42.822 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 06 01:17:43.434 INFO [stderr] warning: method is never used: `blocks`
Dec 06 01:17:43.434 INFO [stderr]   --> src/main.rs:82:5
Dec 06 01:17:43.434 INFO [stderr]    |
Dec 06 01:17:43.434 INFO [stderr] 82 |     pub fn blocks(&self) -> &[Block] {
Dec 06 01:17:43.434 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:43.434 INFO [stderr]    |
Dec 06 01:17:43.434 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 01:17:43.434 INFO [stderr] 
Dec 06 01:17:43.443 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:17:43.443 INFO [stderr]    --> src/main.rs:131:13
Dec 06 01:17:43.443 INFO [stderr]     |
Dec 06 01:17:43.443 INFO [stderr] 131 |             writeln!(f, "Block {} Hash: {}", index, block.hash());
Dec 06 01:17:43.443 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:17:43.443 INFO [stderr]     |
Dec 06 01:17:43.443 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 01:17:43.443 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:17:43.443 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 01:17:43.443 INFO [stderr] 
Dec 06 01:17:43.658 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 06 01:17:43.662 INFO [stderr] su: No module specific data is present
Dec 06 01:17:43.986 INFO running `"docker" "inspect" "f8080e97a5a7ea487eca8d37f7165fe53cc756b47da747a4db7193795e74ce9b"`
Dec 06 01:17:44.171 INFO running `"docker" "rm" "-f" "f8080e97a5a7ea487eca8d37f7165fe53cc756b47da747a4db7193795e74ce9b"`
Dec 06 01:17:44.335 INFO [stdout] f8080e97a5a7ea487eca8d37f7165fe53cc756b47da747a4db7193795e74ce9b
Dec 06 01:17:44.336 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 01:17:44.505 INFO [stdout] ef189269d5f1a3cc24e48cdd8e96a6355a757585d40e1f711012df7ded8f7487
Dec 06 01:17:44.510 INFO running `"docker" "start" "-a" "ef189269d5f1a3cc24e48cdd8e96a6355a757585d40e1f711012df7ded8f7487"`
Dec 06 01:17:45.280 INFO [stderr] usermod: no changes
Dec 06 01:17:45.376 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 06 01:17:45.377 INFO [stderr]      Running /target/debug/deps/blockchain-fc7193f34ee19228
Dec 06 01:17:45.386 INFO [stdout] 
Dec 06 01:17:45.386 INFO [stdout] running 0 tests
Dec 06 01:17:45.386 INFO [stdout] 
Dec 06 01:17:45.386 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 01:17:45.386 INFO [stdout] 
Dec 06 01:17:45.388 INFO [stderr] su: No module specific data is present
Dec 06 01:17:46.577 INFO running `"docker" "inspect" "ef189269d5f1a3cc24e48cdd8e96a6355a757585d40e1f711012df7ded8f7487"`
Dec 06 01:17:46.826 INFO running `"docker" "rm" "-f" "ef189269d5f1a3cc24e48cdd8e96a6355a757585d40e1f711012df7ded8f7487"`
Dec 06 01:17:47.080 INFO [stdout] ef189269d5f1a3cc24e48cdd8e96a6355a757585d40e1f711012df7ded8f7487