Oct 27 01:36:44.705 INFO checking lezwon/Blockchain-from-Scratch against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 01:36:44.706 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 01:36:45.095 INFO blam! 289c462f4040b7143267bc8e6978a14c5ff56e5d57510e1aef82d0dd81571077
Oct 27 01:36:45.098 INFO running `"docker" "start" "-a" "289c462f4040b7143267bc8e6978a14c5ff56e5d57510e1aef82d0dd81571077"`
Oct 27 01:36:46.471 INFO kablam! usermod: no changes
Oct 27 01:36:46.639 INFO kablam!     Checking serde_json v1.0.6
Oct 27 01:36:49.007 INFO kablam!     Checking blockchain-rust v0.1.0 (/source)
Oct 27 01:36:50.601 INFO kablam! warning: variable does not need to be mutable
Oct 27 01:36:50.601 INFO kablam!   --> src/main.rs:94:8
Oct 27 01:36:50.601 INFO kablam!    |
Oct 27 01:36:50.601 INFO kablam! 94 |             let mut block_header = BlockHeader{
Oct 27 01:36:50.602 INFO kablam!    |                 ----^^^^^^^^^^^^
Oct 27 01:36:50.602 INFO kablam!    |                 |
Oct 27 01:36:50.602 INFO kablam!    |                 help: remove this `mut`
Oct 27 01:36:50.602 INFO kablam!    |
Oct 27 01:36:50.602 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 01:36:50.603 INFO kablam! 
Oct 27 01:36:50.617 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.618 INFO kablam!    --> src/main.rs:210:2
Oct 27 01:36:50.618 INFO kablam!     |
Oct 27 01:36:50.618 INFO kablam! 210 |     io::stdout().flush();
Oct 27 01:36:50.618 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.618 INFO kablam!     |
Oct 27 01:36:50.618 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 27 01:36:50.618 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.618 INFO kablam! 
Oct 27 01:36:50.618 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.618 INFO kablam!    --> src/main.rs:211:2
Oct 27 01:36:50.618 INFO kablam!     |
Oct 27 01:36:50.618 INFO kablam! 211 |     io::stdin().read_line(&mut miner_address);
Oct 27 01:36:50.618 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.618 INFO kablam!     |
Oct 27 01:36:50.618 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.618 INFO kablam! 
Oct 27 01:36:50.618 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.618 INFO kablam!    --> src/main.rs:213:2
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 213 |     io::stdout().flush();
Oct 27 01:36:50.622 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:214:2
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 214 |     io::stdin().read_line(&mut difficulty_string);
Oct 27 01:36:50.622 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:229:3
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 229 |         io::stdout().flush();
Oct 27 01:36:50.622 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:231:3
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 231 |         io::stdin().read_line(&mut choice);
Oct 27 01:36:50.622 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:247:5
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 247 |                 io::stdout().flush();
Oct 27 01:36:50.622 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:248:5
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 248 |                 io::stdin().read_line(&mut sender);
Oct 27 01:36:50.622 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:250:5
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 250 |                 io::stdout().flush();
Oct 27 01:36:50.622 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:251:5
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 251 |                 io::stdin().read_line(&mut recipient);
Oct 27 01:36:50.622 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.622 INFO kablam!    --> src/main.rs:253:5
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam! 253 |                 io::stdout().flush();
Oct 27 01:36:50.622 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.622 INFO kablam!     |
Oct 27 01:36:50.622 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.622 INFO kablam! 
Oct 27 01:36:50.622 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.623 INFO kablam!    --> src/main.rs:254:5
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam! 254 |                 io::stdin().read_line(&mut amount);
Oct 27 01:36:50.623 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.623 INFO kablam! 
Oct 27 01:36:50.623 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.623 INFO kablam!    --> src/main.rs:274:5
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam! 274 |                 io::stdout().flush();
Oct 27 01:36:50.623 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.623 INFO kablam! 
Oct 27 01:36:50.623 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.623 INFO kablam!    --> src/main.rs:275:5
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam! 275 |                 io::stdin().read_line(&mut new_difficulty);
Oct 27 01:36:50.623 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.623 INFO kablam! 
Oct 27 01:36:50.623 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.623 INFO kablam!    --> src/main.rs:286:5
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam! 286 |                 io::stdout().flush();
Oct 27 01:36:50.623 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.623 INFO kablam!     |
Oct 27 01:36:50.623 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.640 INFO kablam! 
Oct 27 01:36:50.640 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.640 INFO kablam!    --> src/main.rs:287:5
Oct 27 01:36:50.640 INFO kablam!     |
Oct 27 01:36:50.640 INFO kablam! 287 |                 io::stdin().read_line(&mut new_reward);
Oct 27 01:36:50.640 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.640 INFO kablam!     |
Oct 27 01:36:50.640 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.640 INFO kablam! 
Oct 27 01:36:50.811 INFO kablam! warning: variable does not need to be mutable
Oct 27 01:36:50.811 INFO kablam!   --> src/main.rs:94:8
Oct 27 01:36:50.811 INFO kablam!    |
Oct 27 01:36:50.811 INFO kablam! 94 |             let mut block_header = BlockHeader{
Oct 27 01:36:50.811 INFO kablam!    |                 ----^^^^^^^^^^^^
Oct 27 01:36:50.811 INFO kablam!    |                 |
Oct 27 01:36:50.811 INFO kablam!    |                 help: remove this `mut`
Oct 27 01:36:50.814 INFO kablam!    |
Oct 27 01:36:50.824 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 01:36:50.824 INFO kablam! 
Oct 27 01:36:50.824 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.824 INFO kablam!    --> src/main.rs:210:2
Oct 27 01:36:50.825 INFO kablam!     |
Oct 27 01:36:50.825 INFO kablam! 210 |     io::stdout().flush();
Oct 27 01:36:50.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.825 INFO kablam!     |
Oct 27 01:36:50.825 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 27 01:36:50.825 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.825 INFO kablam! 
Oct 27 01:36:50.825 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.825 INFO kablam!    --> src/main.rs:211:2
Oct 27 01:36:50.825 INFO kablam!     |
Oct 27 01:36:50.825 INFO kablam! 211 |     io::stdin().read_line(&mut miner_address);
Oct 27 01:36:50.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.825 INFO kablam!     |
Oct 27 01:36:50.825 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.825 INFO kablam! 
Oct 27 01:36:50.827 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.827 INFO kablam!    --> src/main.rs:213:2
Oct 27 01:36:50.827 INFO kablam!     |
Oct 27 01:36:50.827 INFO kablam! 213 |     io::stdout().flush();
Oct 27 01:36:50.827 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.827 INFO kablam!     |
Oct 27 01:36:50.827 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:214:2
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 214 |     io::stdin().read_line(&mut difficulty_string);
Oct 27 01:36:50.828 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:229:3
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 229 |         io::stdout().flush();
Oct 27 01:36:50.828 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:231:3
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 231 |         io::stdin().read_line(&mut choice);
Oct 27 01:36:50.828 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:247:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 247 |                 io::stdout().flush();
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:248:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 248 |                 io::stdin().read_line(&mut sender);
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:250:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 250 |                 io::stdout().flush();
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:251:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 251 |                 io::stdin().read_line(&mut recipient);
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:253:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 253 |                 io::stdout().flush();
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:254:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 254 |                 io::stdin().read_line(&mut amount);
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.828 INFO kablam! 
Oct 27 01:36:50.828 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.828 INFO kablam!    --> src/main.rs:274:5
Oct 27 01:36:50.828 INFO kablam!     |
Oct 27 01:36:50.828 INFO kablam! 274 |                 io::stdout().flush();
Oct 27 01:36:50.828 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.834 INFO kablam! 
Oct 27 01:36:50.834 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.834 INFO kablam!    --> src/main.rs:275:5
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam! 275 |                 io::stdin().read_line(&mut new_difficulty);
Oct 27 01:36:50.834 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.834 INFO kablam! 
Oct 27 01:36:50.834 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.834 INFO kablam!    --> src/main.rs:286:5
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam! 286 |                 io::stdout().flush();
Oct 27 01:36:50.834 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.834 INFO kablam! 
Oct 27 01:36:50.834 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 01:36:50.834 INFO kablam!    --> src/main.rs:287:5
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam! 287 |                 io::stdin().read_line(&mut new_reward);
Oct 27 01:36:50.834 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 01:36:50.834 INFO kablam!     |
Oct 27 01:36:50.834 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 01:36:50.834 INFO kablam! 
Oct 27 01:36:50.875 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
Oct 27 01:36:50.875 INFO kablam! su: No module specific data is present
Oct 27 01:36:51.923 INFO running `"docker" "rm" "-f" "289c462f4040b7143267bc8e6978a14c5ff56e5d57510e1aef82d0dd81571077"`
Oct 27 01:36:52.206 INFO blam! 289c462f4040b7143267bc8e6978a14c5ff56e5d57510e1aef82d0dd81571077