Dec 14 12:04:00.428 INFO testing AvishaiW/toy-blochain-rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 12:04:00.428 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 14 12:04:00.669 INFO [stdout] b7cbd184ca323a4d2f83717ce617d3db259183d59cda3b0ab87e0bd8f2c862a5
Dec 14 12:04:00.676 INFO running `"docker" "start" "-a" "b7cbd184ca323a4d2f83717ce617d3db259183d59cda3b0ab87e0bd8f2c862a5"`
Dec 14 12:04:01.386 INFO [stderr] usermod: no changes
Dec 14 12:04:01.501 INFO [stderr]    Compiling sha2 v0.8.0
Dec 14 12:04:02.860 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:16:5
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr] 16 |     io::stdout().flush();
Dec 14 12:04:04.319 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 12:04:04.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.319 INFO [stderr] 
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:17:5
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 14 12:04:04.319 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.319 INFO [stderr] 
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:19:5
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr] 19 |     io::stdout().flush();
Dec 14 12:04:04.319 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.319 INFO [stderr] 
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:20:5
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 14 12:04:04.319 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.319 INFO [stderr] 
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:33:9
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr] 33 |         io::stdout().flush();
Dec 14 12:04:04.319 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.319 INFO [stderr]    |
Dec 14 12:04:04.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.319 INFO [stderr] 
Dec 14 12:04:04.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.319 INFO [stderr]   --> src/main.rs:35:9
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Dec 14 12:04:04.320 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:50:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 50 |                 io::stdout().flush();
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:51:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:53:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 53 |                 io::stdout().flush();
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:54:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:56:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 56 |                 io::stdout().flush();
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:57:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:81:21
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 81 |                     io::stdout().flush();
Dec 14 12:04:04.320 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:82:21
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 82 |                     io::stdin().read_line(&mut new_diff);
Dec 14 12:04:04.320 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.320 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.320 INFO [stderr]   --> src/main.rs:92:17
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr] 92 |                 io::stdout().flush();
Dec 14 12:04:04.320 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.320 INFO [stderr]    |
Dec 14 12:04:04.320 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.320 INFO [stderr] 
Dec 14 12:04:04.326 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:04.327 INFO [stderr]   --> src/main.rs:93:17
Dec 14 12:04:04.327 INFO [stderr]    |
Dec 14 12:04:04.327 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Dec 14 12:04:04.327 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:04.327 INFO [stderr]    |
Dec 14 12:04:04.327 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:04.327 INFO [stderr] 
Dec 14 12:04:05.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.11s
Dec 14 12:04:05.527 INFO [stderr] su: No module specific data is present
Dec 14 12:04:06.311 INFO running `"docker" "inspect" "b7cbd184ca323a4d2f83717ce617d3db259183d59cda3b0ab87e0bd8f2c862a5"`
Dec 14 12:04:06.594 INFO running `"docker" "rm" "-f" "b7cbd184ca323a4d2f83717ce617d3db259183d59cda3b0ab87e0bd8f2c862a5"`
Dec 14 12:04:06.897 INFO [stdout] b7cbd184ca323a4d2f83717ce617d3db259183d59cda3b0ab87e0bd8f2c862a5
Dec 14 12:04:06.900 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 14 12:04:07.411 INFO [stdout] 0c12de67d7375f1b4db44fda96342e8ee51bdd41881bde3716246f26b03e1efa
Dec 14 12:04:07.411 INFO running `"docker" "start" "-a" "0c12de67d7375f1b4db44fda96342e8ee51bdd41881bde3716246f26b03e1efa"`
Dec 14 12:04:08.515 INFO [stderr] usermod: no changes
Dec 14 12:04:08.603 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 14 12:04:09.916 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.916 INFO [stderr]   --> src/main.rs:16:5
Dec 14 12:04:09.916 INFO [stderr]    |
Dec 14 12:04:09.916 INFO [stderr] 16 |     io::stdout().flush();
Dec 14 12:04:09.916 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.916 INFO [stderr]    |
Dec 14 12:04:09.916 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 12:04:09.916 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.916 INFO [stderr] 
Dec 14 12:04:09.919 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.919 INFO [stderr]   --> src/main.rs:17:5
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 14 12:04:09.919 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.919 INFO [stderr] 
Dec 14 12:04:09.919 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.919 INFO [stderr]   --> src/main.rs:19:5
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr] 19 |     io::stdout().flush();
Dec 14 12:04:09.919 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.919 INFO [stderr] 
Dec 14 12:04:09.919 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.919 INFO [stderr]   --> src/main.rs:20:5
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 14 12:04:09.919 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.919 INFO [stderr] 
Dec 14 12:04:09.919 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.919 INFO [stderr]   --> src/main.rs:33:9
Dec 14 12:04:09.919 INFO [stderr]    |
Dec 14 12:04:09.919 INFO [stderr] 33 |         io::stdout().flush();
Dec 14 12:04:09.920 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:35:9
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Dec 14 12:04:09.920 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:50:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 50 |                 io::stdout().flush();
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:51:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:53:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 53 |                 io::stdout().flush();
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:54:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:56:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 56 |                 io::stdout().flush();
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:57:17
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Dec 14 12:04:09.920 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.920 INFO [stderr]    |
Dec 14 12:04:09.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.920 INFO [stderr] 
Dec 14 12:04:09.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.920 INFO [stderr]   --> src/main.rs:81:21
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr] 81 |                     io::stdout().flush();
Dec 14 12:04:09.921 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.921 INFO [stderr] 
Dec 14 12:04:09.921 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.921 INFO [stderr]   --> src/main.rs:82:21
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr] 82 |                     io::stdin().read_line(&mut new_diff);
Dec 14 12:04:09.921 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.921 INFO [stderr] 
Dec 14 12:04:09.921 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.921 INFO [stderr]   --> src/main.rs:92:17
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr] 92 |                 io::stdout().flush();
Dec 14 12:04:09.921 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.921 INFO [stderr] 
Dec 14 12:04:09.921 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 12:04:09.921 INFO [stderr]   --> src/main.rs:93:17
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Dec 14 12:04:09.921 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 12:04:09.921 INFO [stderr]    |
Dec 14 12:04:09.921 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 12:04:09.921 INFO [stderr] 
Dec 14 12:04:10.247 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
Dec 14 12:04:10.251 INFO [stderr] su: No module specific data is present
Dec 14 12:04:10.838 INFO running `"docker" "inspect" "0c12de67d7375f1b4db44fda96342e8ee51bdd41881bde3716246f26b03e1efa"`
Dec 14 12:04:11.120 INFO running `"docker" "rm" "-f" "0c12de67d7375f1b4db44fda96342e8ee51bdd41881bde3716246f26b03e1efa"`
Dec 14 12:04:11.668 INFO [stdout] 0c12de67d7375f1b4db44fda96342e8ee51bdd41881bde3716246f26b03e1efa
Dec 14 12:04:11.668 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 14 12:04:12.099 INFO [stdout] a0eb6b1f74c58698e99b61e50953d733480255917bbfc7b76bbb81f01dc9b583
Dec 14 12:04:12.107 INFO running `"docker" "start" "-a" "a0eb6b1f74c58698e99b61e50953d733480255917bbfc7b76bbb81f01dc9b583"`
Dec 14 12:04:12.855 INFO [stderr] usermod: no changes
Dec 14 12:04:12.916 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 14 12:04:12.933 INFO [stderr]      Running /target/debug/deps/blockchain-8b006f2e5c752d22
Dec 14 12:04:12.935 INFO [stdout] 
Dec 14 12:04:12.935 INFO [stdout] running 0 tests
Dec 14 12:04:12.935 INFO [stdout] 
Dec 14 12:04:12.935 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 12:04:12.935 INFO [stdout] 
Dec 14 12:04:12.937 INFO [stderr] su: No module specific data is present
Dec 14 12:04:13.312 INFO running `"docker" "inspect" "a0eb6b1f74c58698e99b61e50953d733480255917bbfc7b76bbb81f01dc9b583"`
Dec 14 12:04:13.449 INFO running `"docker" "rm" "-f" "a0eb6b1f74c58698e99b61e50953d733480255917bbfc7b76bbb81f01dc9b583"`
Dec 14 12:04:13.572 INFO [stdout] a0eb6b1f74c58698e99b61e50953d733480255917bbfc7b76bbb81f01dc9b583