Oct 31 17:33:50.735 INFO checking yogesum/blockchain-rs against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 17:33:50.735 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 17:33:51.297 INFO blam! 5f1fc1e90013a9cb53f0ad94be8d97bd9f63807e118f555e52c3a0f9d29bf048
Oct 31 17:33:51.299 INFO running `"docker" "start" "-a" "5f1fc1e90013a9cb53f0ad94be8d97bd9f63807e118f555e52c3a0f9d29bf048"`
Oct 31 17:33:54.136 INFO kablam! usermod: no changes
Oct 31 17:33:54.276 INFO kablam!     Checking arrayref v0.3.4
Oct 31 17:33:54.280 INFO kablam!     Checking serde v1.0.37
Oct 31 17:33:54.296 INFO kablam!     Checking num-traits v0.2.2
Oct 31 17:33:54.308 INFO kablam!    Compiling proc-macro2 v0.3.1
Oct 31 17:33:54.332 INFO kablam!     Checking time v0.1.39
Oct 31 17:33:54.341 INFO kablam!     Checking generic-array v0.9.0
Oct 31 17:33:54.745 INFO kablam!     Checking block-buffer v0.3.3
Oct 31 17:33:57.656 INFO kablam!     Checking digest v0.7.2
Oct 31 17:33:58.297 INFO kablam!     Checking sha2 v0.7.0
Oct 31 17:34:03.580 INFO kablam!    Compiling quote v0.5.1
Oct 31 17:34:05.005 INFO kablam!    Compiling syn v0.13.1
Oct 31 17:34:19.505 INFO kablam!    Compiling serde_derive_internals v0.23.0
Oct 31 17:34:21.320 INFO kablam!     Checking serde_json v1.0.13
Oct 31 17:34:25.186 INFO kablam!    Compiling serde_derive v1.0.37
Oct 31 17:34:36.987 INFO kablam!     Checking blockchain-rs v0.1.0 (/source)
Oct 31 17:34:37.472 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.472 INFO kablam!   --> src/main.rs:16:5
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam! 16 |     io::stdout().flush();
Oct 31 17:34:37.472 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 17:34:37.472 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.472 INFO kablam! 
Oct 31 17:34:37.472 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.472 INFO kablam!   --> src/main.rs:17:5
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam! 17 |     io::stdin().read_line(&mut miner_addr);
Oct 31 17:34:37.472 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.472 INFO kablam! 
Oct 31 17:34:37.472 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.472 INFO kablam!   --> src/main.rs:20:5
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam! 20 |     io::stdout().flush();
Oct 31 17:34:37.472 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.472 INFO kablam!    |
Oct 31 17:34:37.472 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.472 INFO kablam! 
Oct 31 17:34:37.472 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.472 INFO kablam!   --> src/main.rs:21:5
Oct 31 17:34:37.473 INFO kablam!    |
Oct 31 17:34:37.473 INFO kablam! 21 |     io::stdin().read_line(&mut difficulty);
Oct 31 17:34:37.473 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.473 INFO kablam!    |
Oct 31 17:34:37.473 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.473 INFO kablam! 
Oct 31 17:34:37.473 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.473 INFO kablam!   --> src/main.rs:38:9
Oct 31 17:34:37.473 INFO kablam!    |
Oct 31 17:34:37.473 INFO kablam! 38 |         io::stdout().flush();
Oct 31 17:34:37.473 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.473 INFO kablam!    |
Oct 31 17:34:37.473 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.473 INFO kablam! 
Oct 31 17:34:37.473 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.473 INFO kablam!   --> src/main.rs:41:9
Oct 31 17:34:37.473 INFO kablam!    |
Oct 31 17:34:37.473 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Oct 31 17:34:37.476 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.476 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:55:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 55 |                 io::stdout().flush();
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:56:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 56 |                 io::stdin().read_line(&mut sender);
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:59:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 59 |                 io::stdout().flush();
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:60:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 60 |                 io::stdin().read_line(&mut receiver);
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:63:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 63 |                 io::stdout().flush();
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:64:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:89:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 89 |                 io::stdout().flush();
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!   --> src/main.rs:90:17
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam! 90 |                 io::stdin().read_line(&mut new_diff);
Oct 31 17:34:37.477 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!    |
Oct 31 17:34:37.477 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!    --> src/main.rs:101:17
Oct 31 17:34:37.477 INFO kablam!     |
Oct 31 17:34:37.477 INFO kablam! 101 |                 io::stdout().flush();
Oct 31 17:34:37.477 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!     |
Oct 31 17:34:37.477 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.477 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.477 INFO kablam!    --> src/main.rs:102:17
Oct 31 17:34:37.477 INFO kablam!     |
Oct 31 17:34:37.477 INFO kablam! 102 |                 io::stdin().read_line(&mut new_reward);
Oct 31 17:34:37.477 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.477 INFO kablam!     |
Oct 31 17:34:37.477 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.477 INFO kablam! 
Oct 31 17:34:37.654 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.654 INFO kablam!   --> src/main.rs:16:5
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam! 16 |     io::stdout().flush();
Oct 31 17:34:37.655 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 17:34:37.655 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.655 INFO kablam! 
Oct 31 17:34:37.655 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.655 INFO kablam!   --> src/main.rs:17:5
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam! 17 |     io::stdin().read_line(&mut miner_addr);
Oct 31 17:34:37.655 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.655 INFO kablam! 
Oct 31 17:34:37.655 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.655 INFO kablam!   --> src/main.rs:20:5
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam! 20 |     io::stdout().flush();
Oct 31 17:34:37.655 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.655 INFO kablam! 
Oct 31 17:34:37.655 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.655 INFO kablam!   --> src/main.rs:21:5
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam! 21 |     io::stdin().read_line(&mut difficulty);
Oct 31 17:34:37.655 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.655 INFO kablam!    |
Oct 31 17:34:37.655 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.656 INFO kablam! 
Oct 31 17:34:37.656 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.656 INFO kablam!   --> src/main.rs:38:9
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam! 38 |         io::stdout().flush();
Oct 31 17:34:37.656 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.656 INFO kablam! 
Oct 31 17:34:37.656 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.656 INFO kablam!   --> src/main.rs:41:9
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Oct 31 17:34:37.656 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.656 INFO kablam! 
Oct 31 17:34:37.656 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.656 INFO kablam!   --> src/main.rs:55:17
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam! 55 |                 io::stdout().flush();
Oct 31 17:34:37.656 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.656 INFO kablam! 
Oct 31 17:34:37.656 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.656 INFO kablam!   --> src/main.rs:56:17
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam! 56 |                 io::stdin().read_line(&mut sender);
Oct 31 17:34:37.656 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.656 INFO kablam!    |
Oct 31 17:34:37.656 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.656 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:59:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 59 |                 io::stdout().flush();
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.657 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:60:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 60 |                 io::stdin().read_line(&mut receiver);
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.657 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:63:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 63 |                 io::stdout().flush();
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.657 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:64:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.657 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:89:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 89 |                 io::stdout().flush();
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.657 INFO kablam! 
Oct 31 17:34:37.657 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.657 INFO kablam!   --> src/main.rs:90:17
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam! 90 |                 io::stdin().read_line(&mut new_diff);
Oct 31 17:34:37.657 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.657 INFO kablam!    |
Oct 31 17:34:37.657 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.658 INFO kablam! 
Oct 31 17:34:37.658 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.658 INFO kablam!    --> src/main.rs:101:17
Oct 31 17:34:37.658 INFO kablam!     |
Oct 31 17:34:37.658 INFO kablam! 101 |                 io::stdout().flush();
Oct 31 17:34:37.658 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.658 INFO kablam!     |
Oct 31 17:34:37.658 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.658 INFO kablam! 
Oct 31 17:34:37.658 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:34:37.658 INFO kablam!    --> src/main.rs:102:17
Oct 31 17:34:37.658 INFO kablam!     |
Oct 31 17:34:37.658 INFO kablam! 102 |                 io::stdin().read_line(&mut new_reward);
Oct 31 17:34:37.658 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:34:37.658 INFO kablam!     |
Oct 31 17:34:37.658 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:34:37.658 INFO kablam! 
Oct 31 17:34:37.730 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 43.56s
Oct 31 17:34:37.740 INFO kablam! su: No module specific data is present
Oct 31 17:34:38.986 INFO running `"docker" "rm" "-f" "5f1fc1e90013a9cb53f0ad94be8d97bd9f63807e118f555e52c3a0f9d29bf048"`
Oct 31 17:34:39.268 INFO blam! 5f1fc1e90013a9cb53f0ad94be8d97bd9f63807e118f555e52c3a0f9d29bf048