Dec 13 23:40:41.988 INFO testing christiansakai/toy_blockchain_rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 23:40:41.988 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 23:40:42.444 INFO [stdout] 7ae0ec02697908ebdb55ee0a191c816d0c0952b37bf4c3af1202a963a81ac003
Dec 13 23:40:42.447 INFO running `"docker" "start" "-a" "7ae0ec02697908ebdb55ee0a191c816d0c0952b37bf4c3af1202a963a81ac003"`
Dec 13 23:40:44.206 INFO [stderr] usermod: no changes
Dec 13 23:40:44.313 INFO [stderr]    Compiling toy_blockchain v0.1.0 (/source)
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:16:5
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 16 |     io::stdout().flush();
Dec 13 23:40:45.543 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:17:5
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_address);
Dec 13 23:40:45.543 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:19:5
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 19 |     io::stdout().flush();
Dec 13 23:40:45.543 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:20:5
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 13 23:40:45.543 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:38:9
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 38 |         io::stdout().flush();
Dec 13 23:40:45.543 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.543 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.543 INFO [stderr]   --> src/main.rs:41:9
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 13 23:40:45.543 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.543 INFO [stderr]    |
Dec 13 23:40:45.543 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.543 INFO [stderr] 
Dec 13 23:40:45.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.544 INFO [stderr]   --> src/main.rs:57:17
Dec 13 23:40:45.544 INFO [stderr]    |
Dec 13 23:40:45.544 INFO [stderr] 57 |                 io::stdout().flush();
Dec 13 23:40:45.544 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.544 INFO [stderr]    |
Dec 13 23:40:45.544 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.544 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:58:17
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr] 58 |                 io::stdin().read_line(&mut sender);
Dec 13 23:40:45.545 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.545 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:60:17
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr] 60 |                 io::stdout().flush();
Dec 13 23:40:45.545 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.545 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:61:17
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr] 61 |                 io::stdin().read_line(&mut receiver);
Dec 13 23:40:45.545 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.545 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:63:17
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr] 63 |                 io::stdout().flush();
Dec 13 23:40:45.545 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.545 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:64:17
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 13 23:40:45.545 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.545 INFO [stderr]    |
Dec 13 23:40:45.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.545 INFO [stderr] 
Dec 13 23:40:45.545 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.545 INFO [stderr]   --> src/main.rs:90:17
Dec 13 23:40:45.546 INFO [stderr]    |
Dec 13 23:40:45.547 INFO [stderr] 90 |                 io::stdout().flush();
Dec 13 23:40:45.547 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.547 INFO [stderr]    |
Dec 13 23:40:45.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.547 INFO [stderr] 
Dec 13 23:40:45.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.547 INFO [stderr]   --> src/main.rs:91:17
Dec 13 23:40:45.547 INFO [stderr]    |
Dec 13 23:40:45.547 INFO [stderr] 91 |                 io::stdin().read_line(&mut new_difficulty);
Dec 13 23:40:45.547 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.547 INFO [stderr]    |
Dec 13 23:40:45.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.547 INFO [stderr] 
Dec 13 23:40:45.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.547 INFO [stderr]    --> src/main.rs:105:17
Dec 13 23:40:45.547 INFO [stderr]     |
Dec 13 23:40:45.547 INFO [stderr] 105 |                 io::stdout().flush();
Dec 13 23:40:45.547 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.547 INFO [stderr]     |
Dec 13 23:40:45.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.547 INFO [stderr] 
Dec 13 23:40:45.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:45.547 INFO [stderr]    --> src/main.rs:106:17
Dec 13 23:40:45.547 INFO [stderr]     |
Dec 13 23:40:45.547 INFO [stderr] 106 |                 io::stdin().read_line(&mut new_reward);
Dec 13 23:40:45.547 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:45.547 INFO [stderr]     |
Dec 13 23:40:45.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:45.547 INFO [stderr] 
Dec 13 23:40:46.771 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Dec 13 23:40:46.776 INFO [stderr] su: No module specific data is present
Dec 13 23:40:47.546 INFO running `"docker" "inspect" "7ae0ec02697908ebdb55ee0a191c816d0c0952b37bf4c3af1202a963a81ac003"`
Dec 13 23:40:47.779 INFO running `"docker" "rm" "-f" "7ae0ec02697908ebdb55ee0a191c816d0c0952b37bf4c3af1202a963a81ac003"`
Dec 13 23:40:48.055 INFO [stdout] 7ae0ec02697908ebdb55ee0a191c816d0c0952b37bf4c3af1202a963a81ac003
Dec 13 23:40:48.057 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 23:40:48.615 INFO [stdout] 8cde0a451b59d5824b5255488d057accb89a2667655d833c994aeb0dacee360b
Dec 13 23:40:48.689 INFO running `"docker" "start" "-a" "8cde0a451b59d5824b5255488d057accb89a2667655d833c994aeb0dacee360b"`
Dec 13 23:40:49.932 INFO [stderr] usermod: no changes
Dec 13 23:40:50.036 INFO [stderr]    Compiling toy_blockchain v0.1.0 (/source)
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:16:5
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 16 |     io::stdout().flush();
Dec 13 23:40:51.040 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:17:5
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_address);
Dec 13 23:40:51.040 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:19:5
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 19 |     io::stdout().flush();
Dec 13 23:40:51.040 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:20:5
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 13 23:40:51.040 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:38:9
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 38 |         io::stdout().flush();
Dec 13 23:40:51.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:41:9
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 13 23:40:51.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:57:17
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 57 |                 io::stdout().flush();
Dec 13 23:40:51.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:58:17
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 58 |                 io::stdin().read_line(&mut sender);
Dec 13 23:40:51.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.040 INFO [stderr] 
Dec 13 23:40:51.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.040 INFO [stderr]   --> src/main.rs:60:17
Dec 13 23:40:51.040 INFO [stderr]    |
Dec 13 23:40:51.040 INFO [stderr] 60 |                 io::stdout().flush();
Dec 13 23:40:51.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]   --> src/main.rs:61:17
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr] 61 |                 io::stdin().read_line(&mut receiver);
Dec 13 23:40:51.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]   --> src/main.rs:63:17
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr] 63 |                 io::stdout().flush();
Dec 13 23:40:51.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]   --> src/main.rs:64:17
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 13 23:40:51.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]   --> src/main.rs:90:17
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr] 90 |                 io::stdout().flush();
Dec 13 23:40:51.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]   --> src/main.rs:91:17
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr] 91 |                 io::stdin().read_line(&mut new_difficulty);
Dec 13 23:40:51.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]    |
Dec 13 23:40:51.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]    --> src/main.rs:105:17
Dec 13 23:40:51.041 INFO [stderr]     |
Dec 13 23:40:51.041 INFO [stderr] 105 |                 io::stdout().flush();
Dec 13 23:40:51.041 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]     |
Dec 13 23:40:51.041 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 23:40:51.041 INFO [stderr]    --> src/main.rs:106:17
Dec 13 23:40:51.041 INFO [stderr]     |
Dec 13 23:40:51.041 INFO [stderr] 106 |                 io::stdin().read_line(&mut new_reward);
Dec 13 23:40:51.041 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 23:40:51.041 INFO [stderr]     |
Dec 13 23:40:51.041 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 23:40:51.041 INFO [stderr] 
Dec 13 23:40:51.419 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 13 23:40:51.423 INFO [stderr] su: No module specific data is present
Dec 13 23:40:51.932 INFO running `"docker" "inspect" "8cde0a451b59d5824b5255488d057accb89a2667655d833c994aeb0dacee360b"`
Dec 13 23:40:52.235 INFO running `"docker" "rm" "-f" "8cde0a451b59d5824b5255488d057accb89a2667655d833c994aeb0dacee360b"`
Dec 13 23:40:52.413 INFO [stdout] 8cde0a451b59d5824b5255488d057accb89a2667655d833c994aeb0dacee360b
Dec 13 23:40:52.419 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 23:40:52.679 INFO [stdout] e2cdbc8ed356888ba8640e6b7a530ce5abce14f48fe5c9a25b5c556e54695c2c
Dec 13 23:40:52.679 INFO running `"docker" "start" "-a" "e2cdbc8ed356888ba8640e6b7a530ce5abce14f48fe5c9a25b5c556e54695c2c"`
Dec 13 23:40:53.695 INFO [stderr] usermod: no changes
Dec 13 23:40:53.791 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 13 23:40:53.815 INFO [stderr]      Running /target/debug/deps/toy_blockchain-73d197a89504cba1
Dec 13 23:40:53.823 INFO [stdout] 
Dec 13 23:40:53.823 INFO [stdout] running 0 tests
Dec 13 23:40:53.823 INFO [stdout] 
Dec 13 23:40:53.823 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 23:40:53.823 INFO [stdout] 
Dec 13 23:40:53.823 INFO [stderr] su: No module specific data is present
Dec 13 23:40:54.377 INFO running `"docker" "inspect" "e2cdbc8ed356888ba8640e6b7a530ce5abce14f48fe5c9a25b5c556e54695c2c"`
Dec 13 23:40:54.557 INFO running `"docker" "rm" "-f" "e2cdbc8ed356888ba8640e6b7a530ce5abce14f48fe5c9a25b5c556e54695c2c"`
Dec 13 23:40:54.727 INFO [stdout] e2cdbc8ed356888ba8640e6b7a530ce5abce14f48fe5c9a25b5c556e54695c2c