Nov 01 11:38:39.029 INFO testing dennisfurrer/RustBlockchain against beta-2018-10-30 for beta-1.31-1
Nov 01 11:38:39.031 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 11:38:39.488 INFO blam! d4fbd98e88154a350d6e97b228b80e9c74f55f12718e83684860da491880c756
Nov 01 11:38:39.490 INFO running `"docker" "start" "-a" "d4fbd98e88154a350d6e97b228b80e9c74f55f12718e83684860da491880c756"`
Nov 01 11:38:40.682 INFO kablam! usermod: no changes
Nov 01 11:38:40.896 INFO kablam!    Compiling sha2 v0.7.1
Nov 01 11:38:41.621 INFO kablam!    Compiling blockchain v0.1.0 (/source)
Nov 01 11:38:42.545 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.545 INFO kablam!   --> src/main.rs:18:5
Nov 01 11:38:42.545 INFO kablam!    |
Nov 01 11:38:42.545 INFO kablam! 18 |     io::stdout().flush();
Nov 01 11:38:42.545 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.545 INFO kablam!    |
Nov 01 11:38:42.545 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:38:42.545 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.545 INFO kablam! 
Nov 01 11:38:42.545 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.545 INFO kablam!   --> src/main.rs:19:5
Nov 01 11:38:42.545 INFO kablam!    |
Nov 01 11:38:42.545 INFO kablam! 19 |     io::stdin().read_line(&mut miner_address);
Nov 01 11:38:42.545 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.545 INFO kablam!    |
Nov 01 11:38:42.545 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.545 INFO kablam! 
Nov 01 11:38:42.546 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.546 INFO kablam!   --> src/main.rs:21:5
Nov 01 11:38:42.546 INFO kablam!    |
Nov 01 11:38:42.546 INFO kablam! 21 |     io::stdout().flush();
Nov 01 11:38:42.546 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:22:5
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 22 |     io::stdin().read_line(&mut difficulty);
Nov 01 11:38:42.552 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:38:9
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 38 |         io::stdout().flush();
Nov 01 11:38:42.552 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:40:9
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 40 |         io::stdin().read_line(&mut choice);
Nov 01 11:38:42.552 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:71:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 71 |                 io::stdout().flush();
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:72:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 72 |                 io::stdin().read_line(&mut from);
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:74:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 74 |                 io::stdout().flush();
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:75:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 75 |                 io::stdin().read_line(&mut to);
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:77:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 77 |                 io::stdout().flush();
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!   --> src/main.rs:78:17
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam! 78 |                 io::stdin().read_line(&mut amount);
Nov 01 11:38:42.552 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!    |
Nov 01 11:38:42.552 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.552 INFO kablam! 
Nov 01 11:38:42.552 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.552 INFO kablam!    --> src/main.rs:106:17
Nov 01 11:38:42.552 INFO kablam!     |
Nov 01 11:38:42.552 INFO kablam! 106 |                 io::stdout().flush();
Nov 01 11:38:42.552 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.552 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.553 INFO kablam! 
Nov 01 11:38:42.553 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.553 INFO kablam!    --> src/main.rs:107:17
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam! 107 |                 io::stdin().read_line(&mut new_diff);
Nov 01 11:38:42.553 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.553 INFO kablam! 
Nov 01 11:38:42.553 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.553 INFO kablam!    --> src/main.rs:119:17
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam! 119 |                 io::stdout().flush();
Nov 01 11:38:42.553 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.553 INFO kablam! 
Nov 01 11:38:42.553 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:42.553 INFO kablam!    --> src/main.rs:120:17
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam! 120 |                 io::stdin().read_line(&mut new_reward);
Nov 01 11:38:42.553 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:42.553 INFO kablam!     |
Nov 01 11:38:42.553 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:42.553 INFO kablam! 
Nov 01 11:38:43.446 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
Nov 01 11:38:43.452 INFO kablam! su: No module specific data is present
Nov 01 11:38:43.975 INFO running `"docker" "rm" "-f" "d4fbd98e88154a350d6e97b228b80e9c74f55f12718e83684860da491880c756"`
Nov 01 11:38:44.171 INFO blam! d4fbd98e88154a350d6e97b228b80e9c74f55f12718e83684860da491880c756
Nov 01 11:38:44.179 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 11:38:44.683 INFO blam! 68f6750ea9911ebe679ed0153411535ebe59a6ba347bbae74d0e41765931f987
Nov 01 11:38:44.686 INFO running `"docker" "start" "-a" "68f6750ea9911ebe679ed0153411535ebe59a6ba347bbae74d0e41765931f987"`
Nov 01 11:38:45.158 INFO kablam! usermod: no changes
Nov 01 11:38:45.213 INFO kablam!    Compiling blockchain v0.1.0 (/source)
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:18:5
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 18 |     io::stdout().flush();
Nov 01 11:38:46.022 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:19:5
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 19 |     io::stdin().read_line(&mut miner_address);
Nov 01 11:38:46.022 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:21:5
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 21 |     io::stdout().flush();
Nov 01 11:38:46.022 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:22:5
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 22 |     io::stdin().read_line(&mut difficulty);
Nov 01 11:38:46.022 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:38:9
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 38 |         io::stdout().flush();
Nov 01 11:38:46.022 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:40:9
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 40 |         io::stdin().read_line(&mut choice);
Nov 01 11:38:46.022 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.022 INFO kablam! 
Nov 01 11:38:46.022 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.022 INFO kablam!   --> src/main.rs:71:17
Nov 01 11:38:46.022 INFO kablam!    |
Nov 01 11:38:46.022 INFO kablam! 71 |                 io::stdout().flush();
Nov 01 11:38:46.029 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.029 INFO kablam! 
Nov 01 11:38:46.029 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.029 INFO kablam!   --> src/main.rs:72:17
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam! 72 |                 io::stdin().read_line(&mut from);
Nov 01 11:38:46.029 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.029 INFO kablam! 
Nov 01 11:38:46.029 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.029 INFO kablam!   --> src/main.rs:74:17
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam! 74 |                 io::stdout().flush();
Nov 01 11:38:46.029 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.029 INFO kablam! 
Nov 01 11:38:46.029 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.029 INFO kablam!   --> src/main.rs:75:17
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam! 75 |                 io::stdin().read_line(&mut to);
Nov 01 11:38:46.029 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.029 INFO kablam! 
Nov 01 11:38:46.029 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.029 INFO kablam!   --> src/main.rs:77:17
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam! 77 |                 io::stdout().flush();
Nov 01 11:38:46.029 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.029 INFO kablam!    |
Nov 01 11:38:46.029 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.029 INFO kablam! 
Nov 01 11:38:46.029 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.029 INFO kablam!   --> src/main.rs:78:17
Nov 01 11:38:46.030 INFO kablam!    |
Nov 01 11:38:46.030 INFO kablam! 78 |                 io::stdin().read_line(&mut amount);
Nov 01 11:38:46.030 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.030 INFO kablam!    |
Nov 01 11:38:46.030 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.030 INFO kablam! 
Nov 01 11:38:46.030 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.030 INFO kablam!    --> src/main.rs:106:17
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam! 106 |                 io::stdout().flush();
Nov 01 11:38:46.030 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.030 INFO kablam! 
Nov 01 11:38:46.030 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.030 INFO kablam!    --> src/main.rs:107:17
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam! 107 |                 io::stdin().read_line(&mut new_diff);
Nov 01 11:38:46.030 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.030 INFO kablam! 
Nov 01 11:38:46.030 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.030 INFO kablam!    --> src/main.rs:119:17
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam! 119 |                 io::stdout().flush();
Nov 01 11:38:46.030 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.030 INFO kablam! 
Nov 01 11:38:46.030 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:38:46.030 INFO kablam!    --> src/main.rs:120:17
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam! 120 |                 io::stdin().read_line(&mut new_reward);
Nov 01 11:38:46.030 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:38:46.030 INFO kablam!     |
Nov 01 11:38:46.030 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:38:46.030 INFO kablam! 
Nov 01 11:38:46.336 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Nov 01 11:38:46.341 INFO kablam! su: No module specific data is present
Nov 01 11:38:46.927 INFO running `"docker" "rm" "-f" "68f6750ea9911ebe679ed0153411535ebe59a6ba347bbae74d0e41765931f987"`
Nov 01 11:38:47.139 INFO blam! 68f6750ea9911ebe679ed0153411535ebe59a6ba347bbae74d0e41765931f987
Nov 01 11:38:47.159 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 11:38:47.593 INFO blam! 7bb94d67c8a33e4337839b57eb7213a6c506ca065edd8ded207bccaa0ca77765
Nov 01 11:38:47.603 INFO running `"docker" "start" "-a" "7bb94d67c8a33e4337839b57eb7213a6c506ca065edd8ded207bccaa0ca77765"`
Nov 01 11:38:48.341 INFO kablam! usermod: no changes
Nov 01 11:38:48.410 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 01 11:38:48.420 INFO kablam!      Running /target/debug/deps/blockchain-8f1e93d89df90ecd
Nov 01 11:38:48.431 INFO blam! 
Nov 01 11:38:48.432 INFO kablam! su: No module specific data is present
Nov 01 11:38:48.432 INFO blam! running 0 tests
Nov 01 11:38:48.432 INFO blam! 
Nov 01 11:38:48.433 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 01 11:38:48.433 INFO blam! 
Nov 01 11:38:48.975 INFO running `"docker" "rm" "-f" "7bb94d67c8a33e4337839b57eb7213a6c506ca065edd8ded207bccaa0ca77765"`
Nov 01 11:38:49.131 INFO blam! 7bb94d67c8a33e4337839b57eb7213a6c506ca065edd8ded207bccaa0ca77765
