Nov 01 13:07:08.384 INFO testing christiansakai/toy_blockchain_rust against beta-2018-10-30 for beta-1.31-1
Nov 01 13:07:08.384 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-4/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:07:08.759 INFO blam! b797eca4857040183afc69d6157950cae8b65066fe7769195ae8ac0076760579
Nov 01 13:07:08.767 INFO running `"docker" "start" "-a" "b797eca4857040183afc69d6157950cae8b65066fe7769195ae8ac0076760579"`
Nov 01 13:07:09.481 INFO kablam! usermod: no changes
Nov 01 13:07:09.583 INFO kablam!    Compiling toy_blockchain v0.1.0 (/source)
Nov 01 13:07:10.739 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.739 INFO kablam!   --> src/main.rs:16:5
Nov 01 13:07:10.739 INFO kablam!    |
Nov 01 13:07:10.739 INFO kablam! 16 |     io::stdout().flush();
Nov 01 13:07:10.739 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 13:07:10.743 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.743 INFO kablam! 
Nov 01 13:07:10.743 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.743 INFO kablam!   --> src/main.rs:17:5
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam! 17 |     io::stdin().read_line(&mut miner_address);
Nov 01 13:07:10.743 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.743 INFO kablam! 
Nov 01 13:07:10.743 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.743 INFO kablam!   --> src/main.rs:19:5
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam! 19 |     io::stdout().flush();
Nov 01 13:07:10.743 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.743 INFO kablam! 
Nov 01 13:07:10.743 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.743 INFO kablam!   --> src/main.rs:20:5
Nov 01 13:07:10.743 INFO kablam!    |
Nov 01 13:07:10.743 INFO kablam! 20 |     io::stdin().read_line(&mut difficulty);
Nov 01 13:07:10.744 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:38:9
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 38 |         io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:41:9
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Nov 01 13:07:10.744 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:57:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 57 |                 io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:58:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 58 |                 io::stdin().read_line(&mut sender);
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:60:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 60 |                 io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:61:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 61 |                 io::stdin().read_line(&mut receiver);
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:63:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 63 |                 io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:64:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:90:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 90 |                 io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!   --> src/main.rs:91:17
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam! 91 |                 io::stdin().read_line(&mut new_difficulty);
Nov 01 13:07:10.744 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!    |
Nov 01 13:07:10.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!    --> src/main.rs:105:17
Nov 01 13:07:10.744 INFO kablam!     |
Nov 01 13:07:10.744 INFO kablam! 105 |                 io::stdout().flush();
Nov 01 13:07:10.744 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!     |
Nov 01 13:07:10.744 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.744 INFO kablam! 
Nov 01 13:07:10.744 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:10.744 INFO kablam!    --> src/main.rs:106:17
Nov 01 13:07:10.744 INFO kablam!     |
Nov 01 13:07:10.744 INFO kablam! 106 |                 io::stdin().read_line(&mut new_reward);
Nov 01 13:07:10.744 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:10.744 INFO kablam!     |
Nov 01 13:07:10.744 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:10.745 INFO kablam! 
Nov 01 13:07:11.703 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
Nov 01 13:07:11.703 INFO kablam! su: No module specific data is present
Nov 01 13:07:12.283 INFO running `"docker" "rm" "-f" "b797eca4857040183afc69d6157950cae8b65066fe7769195ae8ac0076760579"`
Nov 01 13:07:12.455 INFO blam! b797eca4857040183afc69d6157950cae8b65066fe7769195ae8ac0076760579
Nov 01 13:07:12.463 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-4/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:07:12.827 INFO blam! ddb10b3ec97fb21cb55d974f3129859ff3116ac639ec678ccf90250d2ac6c96f
Nov 01 13:07:12.843 INFO running `"docker" "start" "-a" "ddb10b3ec97fb21cb55d974f3129859ff3116ac639ec678ccf90250d2ac6c96f"`
Nov 01 13:07:13.568 INFO kablam! usermod: no changes
Nov 01 13:07:13.711 INFO kablam!    Compiling toy_blockchain v0.1.0 (/source)
Nov 01 13:07:14.613 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.613 INFO kablam!   --> src/main.rs:16:5
Nov 01 13:07:14.614 INFO kablam!    |
Nov 01 13:07:14.614 INFO kablam! 16 |     io::stdout().flush();
Nov 01 13:07:14.614 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.614 INFO kablam!    |
Nov 01 13:07:14.614 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 13:07:14.615 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.616 INFO kablam! 
Nov 01 13:07:14.616 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.616 INFO kablam!   --> src/main.rs:17:5
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam! 17 |     io::stdin().read_line(&mut miner_address);
Nov 01 13:07:14.616 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.616 INFO kablam! 
Nov 01 13:07:14.616 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.616 INFO kablam!   --> src/main.rs:19:5
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam! 19 |     io::stdout().flush();
Nov 01 13:07:14.616 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.616 INFO kablam! 
Nov 01 13:07:14.616 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.616 INFO kablam!   --> src/main.rs:20:5
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam! 20 |     io::stdin().read_line(&mut difficulty);
Nov 01 13:07:14.616 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.616 INFO kablam!    |
Nov 01 13:07:14.616 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.616 INFO kablam! 
Nov 01 13:07:14.616 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.616 INFO kablam!   --> src/main.rs:38:9
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 38 |         io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:41:9
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 41 |         io::stdin().read_line(&mut choice);
Nov 01 13:07:14.617 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:57:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 57 |                 io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:58:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 58 |                 io::stdin().read_line(&mut sender);
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:60:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 60 |                 io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:61:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 61 |                 io::stdin().read_line(&mut receiver);
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:63:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 63 |                 io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:64:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 64 |                 io::stdin().read_line(&mut amount);
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:90:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 90 |                 io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!   --> src/main.rs:91:17
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam! 91 |                 io::stdin().read_line(&mut new_difficulty);
Nov 01 13:07:14.617 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!    |
Nov 01 13:07:14.617 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.617 INFO kablam! 
Nov 01 13:07:14.617 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.617 INFO kablam!    --> src/main.rs:105:17
Nov 01 13:07:14.617 INFO kablam!     |
Nov 01 13:07:14.617 INFO kablam! 105 |                 io::stdout().flush();
Nov 01 13:07:14.617 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.617 INFO kablam!     |
Nov 01 13:07:14.618 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.618 INFO kablam! 
Nov 01 13:07:14.618 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 13:07:14.618 INFO kablam!    --> src/main.rs:106:17
Nov 01 13:07:14.618 INFO kablam!     |
Nov 01 13:07:14.618 INFO kablam! 106 |                 io::stdin().read_line(&mut new_reward);
Nov 01 13:07:14.618 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 13:07:14.618 INFO kablam!     |
Nov 01 13:07:14.618 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 13:07:14.618 INFO kablam! 
Nov 01 13:07:15.161 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Nov 01 13:07:15.169 INFO kablam! su: No module specific data is present
Nov 01 13:07:15.695 INFO running `"docker" "rm" "-f" "ddb10b3ec97fb21cb55d974f3129859ff3116ac639ec678ccf90250d2ac6c96f"`
Nov 01 13:07:15.978 INFO blam! ddb10b3ec97fb21cb55d974f3129859ff3116ac639ec678ccf90250d2ac6c96f
Nov 01 13:07:15.981 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-4/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:07:16.447 INFO blam! 193ccd66a33ff5350f4dbbfb610e4b122a608af6fcdbe64368541775f78f9668
Nov 01 13:07:16.449 INFO running `"docker" "start" "-a" "193ccd66a33ff5350f4dbbfb610e4b122a608af6fcdbe64368541775f78f9668"`
Nov 01 13:07:17.636 INFO kablam! usermod: no changes
Nov 01 13:07:17.755 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Nov 01 13:07:17.755 INFO blam! 
Nov 01 13:07:17.756 INFO kablam!      Running /target/debug/deps/toy_blockchain-016e035807b153e0
Nov 01 13:07:17.756 INFO blam! running 0 tests
Nov 01 13:07:17.756 INFO blam! 
Nov 01 13:07:17.757 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 01 13:07:17.757 INFO blam! 
Nov 01 13:07:17.763 INFO kablam! su: No module specific data is present
Nov 01 13:07:18.473 INFO running `"docker" "rm" "-f" "193ccd66a33ff5350f4dbbfb610e4b122a608af6fcdbe64368541775f78f9668"`
Nov 01 13:07:18.803 INFO blam! 193ccd66a33ff5350f4dbbfb610e4b122a608af6fcdbe64368541775f78f9668
