Nov 28 01:49:06.790 INFO checking lezwon/Blockchain-from-Scratch against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 01:49:06.791 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 01:49:07.265 INFO [stdout] f2d04db11cb1b37f1e8b663afb706522a6c92fb0cd0c23d75f285644386dc60f
Nov 28 01:49:07.278 INFO running `"docker" "start" "-a" "f2d04db11cb1b37f1e8b663afb706522a6c92fb0cd0c23d75f285644386dc60f"`
Nov 28 01:49:08.525 INFO [stderr] usermod: no changes
Nov 28 01:49:08.645 INFO [stderr]     Checking blockchain-rust v0.1.0 (/source)
Nov 28 01:49:10.004 INFO [stderr] warning: variable does not need to be mutable
Nov 28 01:49:10.004 INFO [stderr]   --> src/main.rs:94:8
Nov 28 01:49:10.004 INFO [stderr]    |
Nov 28 01:49:10.004 INFO [stderr] 94 |             let mut block_header = BlockHeader{
Nov 28 01:49:10.004 INFO [stderr]    |                 ----^^^^^^^^^^^^
Nov 28 01:49:10.004 INFO [stderr]    |                 |
Nov 28 01:49:10.004 INFO [stderr]    |                 help: remove this `mut`
Nov 28 01:49:10.004 INFO [stderr]    |
Nov 28 01:49:10.004 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 01:49:10.004 INFO [stderr] 
Nov 28 01:49:10.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.036 INFO [stderr]    --> src/main.rs:210:2
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr] 210 |     io::stdout().flush();
Nov 28 01:49:10.036 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 01:49:10.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.036 INFO [stderr] 
Nov 28 01:49:10.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.036 INFO [stderr]    --> src/main.rs:211:2
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr] 211 |     io::stdin().read_line(&mut miner_address);
Nov 28 01:49:10.036 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.036 INFO [stderr] 
Nov 28 01:49:10.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.036 INFO [stderr]    --> src/main.rs:213:2
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr] 213 |     io::stdout().flush();
Nov 28 01:49:10.036 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.036 INFO [stderr] 
Nov 28 01:49:10.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.036 INFO [stderr]    --> src/main.rs:214:2
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr] 214 |     io::stdin().read_line(&mut difficulty_string);
Nov 28 01:49:10.036 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.036 INFO [stderr] 
Nov 28 01:49:10.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.036 INFO [stderr]    --> src/main.rs:229:3
Nov 28 01:49:10.036 INFO [stderr]     |
Nov 28 01:49:10.036 INFO [stderr] 229 |         io::stdout().flush();
Nov 28 01:49:10.036 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:231:3
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 231 |         io::stdin().read_line(&mut choice);
Nov 28 01:49:10.037 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:247:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 247 |                 io::stdout().flush();
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:248:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 248 |                 io::stdin().read_line(&mut sender);
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:250:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 250 |                 io::stdout().flush();
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:251:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 251 |                 io::stdin().read_line(&mut recipient);
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:253:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 253 |                 io::stdout().flush();
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:254:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 254 |                 io::stdin().read_line(&mut amount);
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:274:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 274 |                 io::stdout().flush();
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:275:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 275 |                 io::stdin().read_line(&mut new_difficulty);
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.037 INFO [stderr] 
Nov 28 01:49:10.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.037 INFO [stderr]    --> src/main.rs:286:5
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.037 INFO [stderr] 286 |                 io::stdout().flush();
Nov 28 01:49:10.037 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.037 INFO [stderr]     |
Nov 28 01:49:10.038 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.038 INFO [stderr] 
Nov 28 01:49:10.038 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.038 INFO [stderr]    --> src/main.rs:287:5
Nov 28 01:49:10.038 INFO [stderr]     |
Nov 28 01:49:10.038 INFO [stderr] 287 |                 io::stdin().read_line(&mut new_reward);
Nov 28 01:49:10.038 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.038 INFO [stderr]     |
Nov 28 01:49:10.038 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.038 INFO [stderr] 
Nov 28 01:49:10.048 INFO [stderr] warning: variable does not need to be mutable
Nov 28 01:49:10.048 INFO [stderr]   --> src/main.rs:94:8
Nov 28 01:49:10.048 INFO [stderr]    |
Nov 28 01:49:10.048 INFO [stderr] 94 |             let mut block_header = BlockHeader{
Nov 28 01:49:10.048 INFO [stderr]    |                 ----^^^^^^^^^^^^
Nov 28 01:49:10.048 INFO [stderr]    |                 |
Nov 28 01:49:10.048 INFO [stderr]    |                 help: remove this `mut`
Nov 28 01:49:10.048 INFO [stderr]    |
Nov 28 01:49:10.048 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 01:49:10.048 INFO [stderr] 
Nov 28 01:49:10.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.120 INFO [stderr]    --> src/main.rs:210:2
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr] 210 |     io::stdout().flush();
Nov 28 01:49:10.120 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 01:49:10.120 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.120 INFO [stderr] 
Nov 28 01:49:10.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.120 INFO [stderr]    --> src/main.rs:211:2
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr] 211 |     io::stdin().read_line(&mut miner_address);
Nov 28 01:49:10.120 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.120 INFO [stderr] 
Nov 28 01:49:10.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.120 INFO [stderr]    --> src/main.rs:213:2
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr] 213 |     io::stdout().flush();
Nov 28 01:49:10.120 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.120 INFO [stderr]     |
Nov 28 01:49:10.120 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.120 INFO [stderr] 
Nov 28 01:49:10.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:214:2
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 214 |     io::stdin().read_line(&mut difficulty_string);
Nov 28 01:49:10.124 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.124 INFO [stderr] 
Nov 28 01:49:10.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:229:3
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 229 |         io::stdout().flush();
Nov 28 01:49:10.124 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.124 INFO [stderr] 
Nov 28 01:49:10.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:231:3
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 231 |         io::stdin().read_line(&mut choice);
Nov 28 01:49:10.124 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.124 INFO [stderr] 
Nov 28 01:49:10.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:247:5
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 247 |                 io::stdout().flush();
Nov 28 01:49:10.124 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.124 INFO [stderr] 
Nov 28 01:49:10.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:248:5
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 248 |                 io::stdin().read_line(&mut sender);
Nov 28 01:49:10.124 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.124 INFO [stderr] 
Nov 28 01:49:10.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.124 INFO [stderr]    --> src/main.rs:250:5
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr] 250 |                 io::stdout().flush();
Nov 28 01:49:10.124 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.124 INFO [stderr]     |
Nov 28 01:49:10.124 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:251:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 251 |                 io::stdin().read_line(&mut recipient);
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:253:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 253 |                 io::stdout().flush();
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:254:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 254 |                 io::stdin().read_line(&mut amount);
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:274:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 274 |                 io::stdout().flush();
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:275:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 275 |                 io::stdin().read_line(&mut new_difficulty);
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:286:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 286 |                 io::stdout().flush();
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.125 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 01:49:10.125 INFO [stderr]    --> src/main.rs:287:5
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr] 287 |                 io::stdin().read_line(&mut new_reward);
Nov 28 01:49:10.125 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:49:10.125 INFO [stderr]     |
Nov 28 01:49:10.125 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 01:49:10.125 INFO [stderr] 
Nov 28 01:49:10.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
Nov 28 01:49:10.204 INFO [stderr] su: No module specific data is present
Nov 28 01:49:10.979 INFO running `"docker" "inspect" "f2d04db11cb1b37f1e8b663afb706522a6c92fb0cd0c23d75f285644386dc60f"`
Nov 28 01:49:11.394 INFO running `"docker" "rm" "-f" "f2d04db11cb1b37f1e8b663afb706522a6c92fb0cd0c23d75f285644386dc60f"`
Nov 28 01:49:11.684 INFO [stdout] f2d04db11cb1b37f1e8b663afb706522a6c92fb0cd0c23d75f285644386dc60f