Oct 26 17:29:31.224 INFO checking yogesum/blockchain-rs against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 26 17:29:31.224 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-1/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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"`
Oct 26 17:29:31.612 INFO blam! 2948776b6f901231cca64c4af58776edfa6dc101a9c1a84ab2060b12634c8eb1
Oct 26 17:29:31.614 INFO running `"docker" "start" "-a" "2948776b6f901231cca64c4af58776edfa6dc101a9c1a84ab2060b12634c8eb1"`
Oct 26 17:29:32.879 INFO kablam! usermod: no changes
Oct 26 17:29:33.011 INFO kablam!     Checking arrayref v0.3.4
Oct 26 17:29:33.011 INFO kablam!     Checking num-traits v0.2.2
Oct 26 17:29:33.011 INFO kablam!     Checking serde v1.0.37
Oct 26 17:29:33.015 INFO kablam!    Compiling proc-macro2 v0.3.1
Oct 26 17:29:33.031 INFO kablam!     Checking digest v0.7.2
Oct 26 17:29:33.470 INFO kablam!     Checking block-buffer v0.3.3
Oct 26 17:29:35.160 INFO kablam!     Checking sha2 v0.7.0
Oct 26 17:29:39.611 INFO kablam!    Compiling quote v0.5.1
Oct 26 17:29:40.578 INFO kablam!    Compiling syn v0.13.1
Oct 26 17:29:53.611 INFO kablam!    Compiling serde_derive_internals v0.23.0
Oct 26 17:29:58.446 INFO kablam!    Compiling serde_derive v1.0.37
Oct 26 17:30:00.927 INFO kablam!     Checking serde_json v1.0.13
Oct 26 17:30:11.699 INFO kablam!     Checking blockchain-rs v0.1.0 (/source)
Oct 26 17:30:12.555 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.555 INFO kablam!   --> src/main.rs:16:5
Oct 26 17:30:12.555 INFO kablam!    |
Oct 26 17:30:12.555 INFO kablam! 16 |     io::stdout().flush();
Oct 26 17:30:12.555 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.555 INFO kablam!    |
Oct 26 17:30:12.555 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 26 17:30:12.555 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.556 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:17:5
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 17 |     io::stdin().read_line(&mut miner_addr);
Oct 26 17:30:12.565 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:20:5
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 20 |     io::stdout().flush();
Oct 26 17:30:12.565 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:21:5
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 21 |     io::stdin().read_line(&mut difficulty);
Oct 26 17:30:12.565 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:38:9
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 38 |         io::stdout().flush();
Oct 26 17:30:12.565 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:41:9
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Oct 26 17:30:12.565 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:55:17
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 55 |                 io::stdout().flush();
Oct 26 17:30:12.565 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:56:17
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 56 |                 io::stdin().read_line(&mut sender);
Oct 26 17:30:12.565 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:59:17
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 59 |                 io::stdout().flush();
Oct 26 17:30:12.565 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.565 INFO kablam! 
Oct 26 17:30:12.565 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.565 INFO kablam!   --> src/main.rs:60:17
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam! 60 |                 io::stdin().read_line(&mut receiver);
Oct 26 17:30:12.565 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.565 INFO kablam!    |
Oct 26 17:30:12.565 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.566 INFO kablam! 
Oct 26 17:30:12.566 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.566 INFO kablam!   --> src/main.rs:63:17
Oct 26 17:30:12.566 INFO kablam!    |
Oct 26 17:30:12.566 INFO kablam! 63 |                 io::stdout().flush();
Oct 26 17:30:12.566 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.566 INFO kablam!    |
Oct 26 17:30:12.566 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.566 INFO kablam! 
Oct 26 17:30:12.566 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.566 INFO kablam!   --> src/main.rs:64:17
Oct 26 17:30:12.566 INFO kablam!    |
Oct 26 17:30:12.566 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Oct 26 17:30:12.566 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.566 INFO kablam!    |
Oct 26 17:30:12.566 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.566 INFO kablam! 
Oct 26 17:30:12.571 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.571 INFO kablam!   --> src/main.rs:89:17
Oct 26 17:30:12.571 INFO kablam!    |
Oct 26 17:30:12.571 INFO kablam! 89 |                 io::stdout().flush();
Oct 26 17:30:12.571 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.571 INFO kablam!    |
Oct 26 17:30:12.571 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.571 INFO kablam! 
Oct 26 17:30:12.571 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.571 INFO kablam!   --> src/main.rs:90:17
Oct 26 17:30:12.571 INFO kablam!    |
Oct 26 17:30:12.571 INFO kablam! 90 |                 io::stdin().read_line(&mut new_diff);
Oct 26 17:30:12.571 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.571 INFO kablam!    |
Oct 26 17:30:12.571 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.571 INFO kablam! 
Oct 26 17:30:12.571 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.571 INFO kablam!    --> src/main.rs:101:17
Oct 26 17:30:12.571 INFO kablam!     |
Oct 26 17:30:12.571 INFO kablam! 101 |                 io::stdout().flush();
Oct 26 17:30:12.571 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.571 INFO kablam!     |
Oct 26 17:30:12.571 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.571 INFO kablam! 
Oct 26 17:30:12.571 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.571 INFO kablam!    --> src/main.rs:102:17
Oct 26 17:30:12.571 INFO kablam!     |
Oct 26 17:30:12.571 INFO kablam! 102 |                 io::stdin().read_line(&mut new_reward);
Oct 26 17:30:12.571 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.571 INFO kablam!     |
Oct 26 17:30:12.571 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.571 INFO kablam! 
Oct 26 17:30:12.579 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.579 INFO kablam!   --> src/main.rs:16:5
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam! 16 |     io::stdout().flush();
Oct 26 17:30:12.579 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 26 17:30:12.579 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.579 INFO kablam! 
Oct 26 17:30:12.579 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.579 INFO kablam!   --> src/main.rs:17:5
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam! 17 |     io::stdin().read_line(&mut miner_addr);
Oct 26 17:30:12.579 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.579 INFO kablam! 
Oct 26 17:30:12.579 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.579 INFO kablam!   --> src/main.rs:20:5
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam! 20 |     io::stdout().flush();
Oct 26 17:30:12.579 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.579 INFO kablam! 
Oct 26 17:30:12.579 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.579 INFO kablam!   --> src/main.rs:21:5
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam! 21 |     io::stdin().read_line(&mut difficulty);
Oct 26 17:30:12.579 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.579 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.579 INFO kablam! 
Oct 26 17:30:12.579 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.579 INFO kablam!   --> src/main.rs:38:9
Oct 26 17:30:12.579 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 38 |         io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:41:9
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Oct 26 17:30:12.580 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:55:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 55 |                 io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:56:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 56 |                 io::stdin().read_line(&mut sender);
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:59:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 59 |                 io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:60:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 60 |                 io::stdin().read_line(&mut receiver);
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:63:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 63 |                 io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:64:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:89:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 89 |                 io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!   --> src/main.rs:90:17
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam! 90 |                 io::stdin().read_line(&mut new_diff);
Oct 26 17:30:12.580 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!    |
Oct 26 17:30:12.580 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!    --> src/main.rs:101:17
Oct 26 17:30:12.580 INFO kablam!     |
Oct 26 17:30:12.580 INFO kablam! 101 |                 io::stdout().flush();
Oct 26 17:30:12.580 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!     |
Oct 26 17:30:12.580 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.580 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 17:30:12.580 INFO kablam!    --> src/main.rs:102:17
Oct 26 17:30:12.580 INFO kablam!     |
Oct 26 17:30:12.580 INFO kablam! 102 |                 io::stdin().read_line(&mut new_reward);
Oct 26 17:30:12.580 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 17:30:12.580 INFO kablam!     |
Oct 26 17:30:12.580 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 17:30:12.580 INFO kablam! 
Oct 26 17:30:12.631 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 39.71s
Oct 26 17:30:12.635 INFO kablam! su: No module specific data is present
Oct 26 17:30:13.890 INFO running `"docker" "rm" "-f" "2948776b6f901231cca64c4af58776edfa6dc101a9c1a84ab2060b12634c8eb1"`
Oct 26 17:30:14.179 INFO blam! 2948776b6f901231cca64c4af58776edfa6dc101a9c1a84ab2060b12634c8eb1