Nov 30 11:59:57.593 INFO checking AvishaiW/toy-blochain-rust against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 11:59:57.593 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-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"`
Nov 30 11:59:58.156 INFO [stdout] 2dade06935e8f963ec626edf67f0d11d0112438dd565c24452e644f09e656486
Nov 30 11:59:58.160 INFO running `"docker" "start" "-a" "2dade06935e8f963ec626edf67f0d11d0112438dd565c24452e644f09e656486"`
Nov 30 11:59:59.743 INFO [stderr] usermod: no changes
Nov 30 11:59:59.888 INFO [stderr]     Checking byteorder v1.2.6
Nov 30 12:00:00.412 INFO [stderr]     Checking block-buffer v0.7.0
Nov 30 12:00:00.850 INFO [stderr]     Checking sha2 v0.8.0
Nov 30 12:00:01.943 INFO [stderr]     Checking blockchain v0.1.0 (/source)
Nov 30 12:00:03.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.645 INFO [stderr]   --> src/main.rs:16:5
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr] 16 |     io::stdout().flush();
Nov 30 12:00:03.645 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 12:00:03.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.645 INFO [stderr] 
Nov 30 12:00:03.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.645 INFO [stderr]   --> src/main.rs:17:5
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Nov 30 12:00:03.645 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.645 INFO [stderr] 
Nov 30 12:00:03.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.645 INFO [stderr]   --> src/main.rs:19:5
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr] 19 |     io::stdout().flush();
Nov 30 12:00:03.645 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.645 INFO [stderr] 
Nov 30 12:00:03.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.645 INFO [stderr]   --> src/main.rs:20:5
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.645 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Nov 30 12:00:03.645 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.645 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.651 INFO [stderr] 
Nov 30 12:00:03.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.651 INFO [stderr]   --> src/main.rs:33:9
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr] 33 |         io::stdout().flush();
Nov 30 12:00:03.651 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.651 INFO [stderr] 
Nov 30 12:00:03.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.651 INFO [stderr]   --> src/main.rs:35:9
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Nov 30 12:00:03.651 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.651 INFO [stderr] 
Nov 30 12:00:03.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.651 INFO [stderr]   --> src/main.rs:50:17
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr] 50 |                 io::stdout().flush();
Nov 30 12:00:03.651 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.651 INFO [stderr] 
Nov 30 12:00:03.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.651 INFO [stderr]   --> src/main.rs:51:17
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Nov 30 12:00:03.651 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.651 INFO [stderr] 
Nov 30 12:00:03.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.651 INFO [stderr]   --> src/main.rs:53:17
Nov 30 12:00:03.651 INFO [stderr]    |
Nov 30 12:00:03.651 INFO [stderr] 53 |                 io::stdout().flush();
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:54:17
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:56:17
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 56 |                 io::stdout().flush();
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:57:17
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:81:21
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 81 |                     io::stdout().flush();
Nov 30 12:00:03.652 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:82:21
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 82 |                     io::stdin().read_line(&mut new_diff);
Nov 30 12:00:03.652 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:92:17
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 92 |                 io::stdout().flush();
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.652 INFO [stderr]   --> src/main.rs:93:17
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Nov 30 12:00:03.652 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.652 INFO [stderr]    |
Nov 30 12:00:03.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.652 INFO [stderr] 
Nov 30 12:00:03.876 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.876 INFO [stderr]   --> src/main.rs:16:5
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr] 16 |     io::stdout().flush();
Nov 30 12:00:03.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 12:00:03.876 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.876 INFO [stderr] 
Nov 30 12:00:03.876 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.876 INFO [stderr]   --> src/main.rs:17:5
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Nov 30 12:00:03.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.876 INFO [stderr] 
Nov 30 12:00:03.876 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.876 INFO [stderr]   --> src/main.rs:19:5
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr] 19 |     io::stdout().flush();
Nov 30 12:00:03.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.876 INFO [stderr]    |
Nov 30 12:00:03.876 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.876 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:20:5
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Nov 30 12:00:03.877 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:33:9
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 33 |         io::stdout().flush();
Nov 30 12:00:03.877 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:35:9
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Nov 30 12:00:03.877 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:50:17
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 50 |                 io::stdout().flush();
Nov 30 12:00:03.877 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:51:17
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Nov 30 12:00:03.877 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:53:17
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 53 |                 io::stdout().flush();
Nov 30 12:00:03.877 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:54:17
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Nov 30 12:00:03.877 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.877 INFO [stderr]    |
Nov 30 12:00:03.877 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.877 INFO [stderr] 
Nov 30 12:00:03.877 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.877 INFO [stderr]   --> src/main.rs:56:17
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 56 |                 io::stdout().flush();
Nov 30 12:00:03.878 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.878 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.878 INFO [stderr]   --> src/main.rs:57:17
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Nov 30 12:00:03.878 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.878 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.878 INFO [stderr]   --> src/main.rs:81:21
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 81 |                     io::stdout().flush();
Nov 30 12:00:03.878 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.878 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.878 INFO [stderr]   --> src/main.rs:82:21
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 82 |                     io::stdin().read_line(&mut new_diff);
Nov 30 12:00:03.878 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.878 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.878 INFO [stderr]   --> src/main.rs:92:17
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 92 |                 io::stdout().flush();
Nov 30 12:00:03.878 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.878 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 12:00:03.878 INFO [stderr]   --> src/main.rs:93:17
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Nov 30 12:00:03.878 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 12:00:03.878 INFO [stderr]    |
Nov 30 12:00:03.878 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 12:00:03.878 INFO [stderr] 
Nov 30 12:00:03.890 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
Nov 30 12:00:03.895 INFO [stderr] su: No module specific data is present
Nov 30 12:00:04.386 INFO running `"docker" "inspect" "2dade06935e8f963ec626edf67f0d11d0112438dd565c24452e644f09e656486"`
Nov 30 12:00:04.559 INFO running `"docker" "rm" "-f" "2dade06935e8f963ec626edf67f0d11d0112438dd565c24452e644f09e656486"`
Nov 30 12:00:04.652 INFO [stdout] 2dade06935e8f963ec626edf67f0d11d0112438dd565c24452e644f09e656486