Dec 17 11:22:23.725 INFO checking yogesum/blockchain-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:22:23.725 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/yogesum/blockchain-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:22:24.243 INFO [stdout] 38fd69e47e40d87312379769056e4326ec50f0b41e9b8223abec69a83e4115c3
Dec 17 11:22:24.252 INFO running `"docker" "start" "-a" "38fd69e47e40d87312379769056e4326ec50f0b41e9b8223abec69a83e4115c3"`
Dec 17 11:22:26.472 INFO [stderr]    Compiling typenum v1.10.0
Dec 17 11:22:26.472 INFO [stderr]     Checking arrayref v0.3.4
Dec 17 11:22:26.476 INFO [stderr]     Checking byte-tools v0.2.0
Dec 17 11:22:26.476 INFO [stderr]     Checking serde v1.0.37
Dec 17 11:22:26.484 INFO [stderr]     Checking num-traits v0.2.2
Dec 17 11:22:26.484 INFO [stderr]     Checking fake-simd v0.1.2
Dec 17 11:22:26.484 INFO [stderr]    Compiling proc-macro2 v0.3.1
Dec 17 11:22:27.576 INFO [stderr]     Checking block-buffer v0.3.3
Dec 17 11:22:33.012 INFO [stderr]    Compiling quote v0.5.1
Dec 17 11:22:34.296 INFO [stderr]    Compiling syn v0.13.1
Dec 17 11:22:35.088 INFO [stderr]     Checking generic-array v0.9.0
Dec 17 11:22:36.457 INFO [stderr]     Checking digest v0.7.2
Dec 17 11:22:36.865 INFO [stderr]     Checking sha2 v0.7.0
Dec 17 11:22:46.925 INFO [stderr]    Compiling serde_derive_internals v0.23.0
Dec 17 11:22:48.000 INFO [stderr]     Checking serde_json v1.0.13
Dec 17 11:22:52.233 INFO [stderr]    Compiling serde_derive v1.0.37
Dec 17 11:23:02.570 INFO [stderr]     Checking blockchain-rs v0.1.0 (/opt/crater/workdir)
Dec 17 11:23:03.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.136 INFO [stderr]   --> src/main.rs:16:5
Dec 17 11:23:03.136 INFO [stderr]    |
Dec 17 11:23:03.136 INFO [stderr] 16 |     io::stdout().flush();
Dec 17 11:23:03.136 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.137 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.137 INFO [stderr]   --> src/main.rs:17:5
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 17 11:23:03.137 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.137 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.137 INFO [stderr]   --> src/main.rs:20:5
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr] 20 |     io::stdout().flush();
Dec 17 11:23:03.137 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.137 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.137 INFO [stderr]   --> src/main.rs:21:5
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 17 11:23:03.137 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.137 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.137 INFO [stderr]   --> src/main.rs:38:9
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr] 38 |         io::stdout().flush();
Dec 17 11:23:03.137 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.137 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.137 INFO [stderr]   --> src/main.rs:41:9
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 17 11:23:03.137 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.137 INFO [stderr]    |
Dec 17 11:23:03.137 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.137 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:55:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 55 |                 io::stdout().flush();
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:56:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:59:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 59 |                 io::stdout().flush();
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:60:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:63:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 63 |                 io::stdout().flush();
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.138 INFO [stderr]   --> src/main.rs:64:17
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 17 11:23:03.138 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.138 INFO [stderr]    |
Dec 17 11:23:03.138 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.138 INFO [stderr] 
Dec 17 11:23:03.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.139 INFO [stderr]   --> src/main.rs:89:17
Dec 17 11:23:03.139 INFO [stderr]    |
Dec 17 11:23:03.139 INFO [stderr] 89 |                 io::stdout().flush();
Dec 17 11:23:03.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.139 INFO [stderr]    |
Dec 17 11:23:03.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.139 INFO [stderr] 
Dec 17 11:23:03.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.139 INFO [stderr]   --> src/main.rs:90:17
Dec 17 11:23:03.139 INFO [stderr]    |
Dec 17 11:23:03.139 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 17 11:23:03.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.139 INFO [stderr]    |
Dec 17 11:23:03.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.139 INFO [stderr] 
Dec 17 11:23:03.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.139 INFO [stderr]    --> src/main.rs:101:17
Dec 17 11:23:03.139 INFO [stderr]     |
Dec 17 11:23:03.139 INFO [stderr] 101 |                 io::stdout().flush();
Dec 17 11:23:03.139 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.139 INFO [stderr]     |
Dec 17 11:23:03.139 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.139 INFO [stderr] 
Dec 17 11:23:03.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.139 INFO [stderr]    --> src/main.rs:102:17
Dec 17 11:23:03.139 INFO [stderr]     |
Dec 17 11:23:03.139 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 17 11:23:03.139 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.139 INFO [stderr]     |
Dec 17 11:23:03.139 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.139 INFO [stderr] 
Dec 17 11:23:03.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.228 INFO [stderr]   --> src/main.rs:16:5
Dec 17 11:23:03.228 INFO [stderr]    |
Dec 17 11:23:03.228 INFO [stderr] 16 |     io::stdout().flush();
Dec 17 11:23:03.229 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.229 INFO [stderr]    |
Dec 17 11:23:03.236 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:23:03.236 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.236 INFO [stderr] 
Dec 17 11:23:03.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.237 INFO [stderr]   --> src/main.rs:17:5
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 17 11:23:03.237 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.237 INFO [stderr] 
Dec 17 11:23:03.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.237 INFO [stderr]   --> src/main.rs:20:5
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr] 20 |     io::stdout().flush();
Dec 17 11:23:03.237 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.237 INFO [stderr] 
Dec 17 11:23:03.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.237 INFO [stderr]   --> src/main.rs:21:5
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 17 11:23:03.237 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.237 INFO [stderr] 
Dec 17 11:23:03.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.237 INFO [stderr]   --> src/main.rs:38:9
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr] 38 |         io::stdout().flush();
Dec 17 11:23:03.237 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.237 INFO [stderr]    |
Dec 17 11:23:03.237 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.237 INFO [stderr] 
Dec 17 11:23:03.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.238 INFO [stderr]   --> src/main.rs:41:9
Dec 17 11:23:03.238 INFO [stderr]    |
Dec 17 11:23:03.238 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 17 11:23:03.238 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.238 INFO [stderr]    |
Dec 17 11:23:03.238 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.238 INFO [stderr] 
Dec 17 11:23:03.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.238 INFO [stderr]   --> src/main.rs:55:17
Dec 17 11:23:03.238 INFO [stderr]    |
Dec 17 11:23:03.238 INFO [stderr] 55 |                 io::stdout().flush();
Dec 17 11:23:03.238 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.238 INFO [stderr]    |
Dec 17 11:23:03.238 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.238 INFO [stderr] 
Dec 17 11:23:03.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:56:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.239 INFO [stderr] 
Dec 17 11:23:03.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:59:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 59 |                 io::stdout().flush();
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.239 INFO [stderr] 
Dec 17 11:23:03.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:60:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.239 INFO [stderr] 
Dec 17 11:23:03.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:63:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 63 |                 io::stdout().flush();
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.239 INFO [stderr] 
Dec 17 11:23:03.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:64:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.239 INFO [stderr] 
Dec 17 11:23:03.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.239 INFO [stderr]   --> src/main.rs:89:17
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr] 89 |                 io::stdout().flush();
Dec 17 11:23:03.239 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.239 INFO [stderr]    |
Dec 17 11:23:03.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.240 INFO [stderr] 
Dec 17 11:23:03.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.240 INFO [stderr]   --> src/main.rs:90:17
Dec 17 11:23:03.240 INFO [stderr]    |
Dec 17 11:23:03.240 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 17 11:23:03.240 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.240 INFO [stderr]    |
Dec 17 11:23:03.240 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.240 INFO [stderr] 
Dec 17 11:23:03.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.240 INFO [stderr]    --> src/main.rs:101:17
Dec 17 11:23:03.240 INFO [stderr]     |
Dec 17 11:23:03.240 INFO [stderr] 101 |                 io::stdout().flush();
Dec 17 11:23:03.240 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.240 INFO [stderr]     |
Dec 17 11:23:03.240 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.240 INFO [stderr] 
Dec 17 11:23:03.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:03.240 INFO [stderr]    --> src/main.rs:102:17
Dec 17 11:23:03.240 INFO [stderr]     |
Dec 17 11:23:03.240 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 17 11:23:03.240 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:03.240 INFO [stderr]     |
Dec 17 11:23:03.240 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:03.240 INFO [stderr] 
Dec 17 11:23:03.266 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.89s
Dec 17 11:23:04.960 INFO running `"docker" "inspect" "38fd69e47e40d87312379769056e4326ec50f0b41e9b8223abec69a83e4115c3"`
Dec 17 11:23:05.336 INFO running `"docker" "rm" "-f" "38fd69e47e40d87312379769056e4326ec50f0b41e9b8223abec69a83e4115c3"`
Dec 17 11:23:05.657 INFO [stdout] 38fd69e47e40d87312379769056e4326ec50f0b41e9b8223abec69a83e4115c3