Nov 29 23:26:53.234 INFO checking lezwon/Blockchain-from-Scratch against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 23:26:53.235 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 23:26:53.637 INFO [stdout] 1f341fa7f19a3e6b994878c33d3bf2474b1c63ecc590264b8770262fcfa69474
Nov 29 23:26:53.644 INFO running `"docker" "start" "-a" "1f341fa7f19a3e6b994878c33d3bf2474b1c63ecc590264b8770262fcfa69474"`
Nov 29 23:26:54.952 INFO [stderr] usermod: no changes
Nov 29 23:26:55.099 INFO [stderr]     Checking serde_json v1.0.6
Nov 29 23:26:57.516 INFO [stderr]     Checking blockchain-rust v0.1.0 (/source)
Nov 29 23:26:58.711 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:26:58.711 INFO [stderr]   --> src/main.rs:94:8
Nov 29 23:26:58.711 INFO [stderr]    |
Nov 29 23:26:58.711 INFO [stderr] 94 |             let mut block_header = BlockHeader{
Nov 29 23:26:58.711 INFO [stderr]    |                 ----^^^^^^^^^^^^
Nov 29 23:26:58.711 INFO [stderr]    |                 |
Nov 29 23:26:58.711 INFO [stderr]    |                 help: remove this `mut`
Nov 29 23:26:58.712 INFO [stderr]    |
Nov 29 23:26:58.712 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 23:26:58.712 INFO [stderr] 
Nov 29 23:26:58.739 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.740 INFO [stderr]    --> src/main.rs:210:2
Nov 29 23:26:58.740 INFO [stderr]     |
Nov 29 23:26:58.740 INFO [stderr] 210 |     io::stdout().flush();
Nov 29 23:26:58.741 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.741 INFO [stderr]     |
Nov 29 23:26:58.741 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 23:26:58.742 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.742 INFO [stderr] 
Nov 29 23:26:58.742 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.742 INFO [stderr]    --> src/main.rs:211:2
Nov 29 23:26:58.742 INFO [stderr]     |
Nov 29 23:26:58.742 INFO [stderr] 211 |     io::stdin().read_line(&mut miner_address);
Nov 29 23:26:58.742 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.742 INFO [stderr]     |
Nov 29 23:26:58.743 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.743 INFO [stderr] 
Nov 29 23:26:58.743 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.743 INFO [stderr]    --> src/main.rs:213:2
Nov 29 23:26:58.743 INFO [stderr]     |
Nov 29 23:26:58.743 INFO [stderr] 213 |     io::stdout().flush();
Nov 29 23:26:58.743 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.743 INFO [stderr]     |
Nov 29 23:26:58.743 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.743 INFO [stderr] 
Nov 29 23:26:58.744 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.744 INFO [stderr]    --> src/main.rs:214:2
Nov 29 23:26:58.744 INFO [stderr]     |
Nov 29 23:26:58.744 INFO [stderr] 214 |     io::stdin().read_line(&mut difficulty_string);
Nov 29 23:26:58.744 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.744 INFO [stderr]     |
Nov 29 23:26:58.744 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.744 INFO [stderr] 
Nov 29 23:26:58.744 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.744 INFO [stderr]    --> src/main.rs:229:3
Nov 29 23:26:58.744 INFO [stderr]     |
Nov 29 23:26:58.744 INFO [stderr] 229 |         io::stdout().flush();
Nov 29 23:26:58.744 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.744 INFO [stderr]     |
Nov 29 23:26:58.745 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.745 INFO [stderr] 
Nov 29 23:26:58.745 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.745 INFO [stderr]    --> src/main.rs:231:3
Nov 29 23:26:58.745 INFO [stderr]     |
Nov 29 23:26:58.745 INFO [stderr] 231 |         io::stdin().read_line(&mut choice);
Nov 29 23:26:58.745 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.745 INFO [stderr]     |
Nov 29 23:26:58.745 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.745 INFO [stderr] 
Nov 29 23:26:58.746 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.746 INFO [stderr]    --> src/main.rs:247:5
Nov 29 23:26:58.746 INFO [stderr]     |
Nov 29 23:26:58.746 INFO [stderr] 247 |                 io::stdout().flush();
Nov 29 23:26:58.746 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.746 INFO [stderr]     |
Nov 29 23:26:58.746 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.746 INFO [stderr] 
Nov 29 23:26:58.746 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.746 INFO [stderr]    --> src/main.rs:248:5
Nov 29 23:26:58.746 INFO [stderr]     |
Nov 29 23:26:58.746 INFO [stderr] 248 |                 io::stdin().read_line(&mut sender);
Nov 29 23:26:58.746 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.746 INFO [stderr]     |
Nov 29 23:26:58.747 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.747 INFO [stderr] 
Nov 29 23:26:58.747 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.747 INFO [stderr]    --> src/main.rs:250:5
Nov 29 23:26:58.747 INFO [stderr]     |
Nov 29 23:26:58.747 INFO [stderr] 250 |                 io::stdout().flush();
Nov 29 23:26:58.747 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.747 INFO [stderr]     |
Nov 29 23:26:58.747 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.747 INFO [stderr] 
Nov 29 23:26:58.748 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.748 INFO [stderr]    --> src/main.rs:251:5
Nov 29 23:26:58.748 INFO [stderr]     |
Nov 29 23:26:58.748 INFO [stderr] 251 |                 io::stdin().read_line(&mut recipient);
Nov 29 23:26:58.748 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.748 INFO [stderr]     |
Nov 29 23:26:58.748 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.748 INFO [stderr] 
Nov 29 23:26:58.748 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.748 INFO [stderr]    --> src/main.rs:253:5
Nov 29 23:26:58.748 INFO [stderr]     |
Nov 29 23:26:58.748 INFO [stderr] 253 |                 io::stdout().flush();
Nov 29 23:26:58.748 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.748 INFO [stderr]     |
Nov 29 23:26:58.748 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.748 INFO [stderr] 
Nov 29 23:26:58.749 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.749 INFO [stderr]    --> src/main.rs:254:5
Nov 29 23:26:58.749 INFO [stderr]     |
Nov 29 23:26:58.749 INFO [stderr] 254 |                 io::stdin().read_line(&mut amount);
Nov 29 23:26:58.749 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.749 INFO [stderr]     |
Nov 29 23:26:58.749 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.749 INFO [stderr] 
Nov 29 23:26:58.749 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.749 INFO [stderr]    --> src/main.rs:274:5
Nov 29 23:26:58.749 INFO [stderr]     |
Nov 29 23:26:58.749 INFO [stderr] 274 |                 io::stdout().flush();
Nov 29 23:26:58.749 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.750 INFO [stderr]     |
Nov 29 23:26:58.750 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.750 INFO [stderr] 
Nov 29 23:26:58.750 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.750 INFO [stderr]    --> src/main.rs:275:5
Nov 29 23:26:58.750 INFO [stderr]     |
Nov 29 23:26:58.750 INFO [stderr] 275 |                 io::stdin().read_line(&mut new_difficulty);
Nov 29 23:26:58.750 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.750 INFO [stderr]     |
Nov 29 23:26:58.750 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.750 INFO [stderr] 
Nov 29 23:26:58.751 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.751 INFO [stderr]    --> src/main.rs:286:5
Nov 29 23:26:58.751 INFO [stderr]     |
Nov 29 23:26:58.751 INFO [stderr] 286 |                 io::stdout().flush();
Nov 29 23:26:58.751 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.751 INFO [stderr]     |
Nov 29 23:26:58.751 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.751 INFO [stderr] 
Nov 29 23:26:58.751 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.751 INFO [stderr]    --> src/main.rs:287:5
Nov 29 23:26:58.751 INFO [stderr]     |
Nov 29 23:26:58.751 INFO [stderr] 287 |                 io::stdin().read_line(&mut new_reward);
Nov 29 23:26:58.751 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.751 INFO [stderr]     |
Nov 29 23:26:58.756 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.756 INFO [stderr] 
Nov 29 23:26:58.964 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:26:58.964 INFO [stderr]   --> src/main.rs:94:8
Nov 29 23:26:58.964 INFO [stderr]    |
Nov 29 23:26:58.964 INFO [stderr] 94 |             let mut block_header = BlockHeader{
Nov 29 23:26:58.964 INFO [stderr]    |                 ----^^^^^^^^^^^^
Nov 29 23:26:58.964 INFO [stderr]    |                 |
Nov 29 23:26:58.964 INFO [stderr]    |                 help: remove this `mut`
Nov 29 23:26:58.964 INFO [stderr]    |
Nov 29 23:26:58.964 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 23:26:58.964 INFO [stderr] 
Nov 29 23:26:58.981 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.981 INFO [stderr]    --> src/main.rs:210:2
Nov 29 23:26:58.981 INFO [stderr]     |
Nov 29 23:26:58.981 INFO [stderr] 210 |     io::stdout().flush();
Nov 29 23:26:58.981 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.981 INFO [stderr]     |
Nov 29 23:26:58.981 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 23:26:58.981 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.981 INFO [stderr] 
Nov 29 23:26:58.981 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.981 INFO [stderr]    --> src/main.rs:211:2
Nov 29 23:26:58.981 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 211 |     io::stdin().read_line(&mut miner_address);
Nov 29 23:26:58.982 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:213:2
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 213 |     io::stdout().flush();
Nov 29 23:26:58.982 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:214:2
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 214 |     io::stdin().read_line(&mut difficulty_string);
Nov 29 23:26:58.982 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:229:3
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 229 |         io::stdout().flush();
Nov 29 23:26:58.982 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:231:3
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 231 |         io::stdin().read_line(&mut choice);
Nov 29 23:26:58.982 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:247:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 247 |                 io::stdout().flush();
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:248:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 248 |                 io::stdin().read_line(&mut sender);
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:250:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 250 |                 io::stdout().flush();
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:251:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 251 |                 io::stdin().read_line(&mut recipient);
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:253:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 253 |                 io::stdout().flush();
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:254:5
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr] 254 |                 io::stdin().read_line(&mut amount);
Nov 29 23:26:58.982 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.982 INFO [stderr]     |
Nov 29 23:26:58.982 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.982 INFO [stderr] 
Nov 29 23:26:58.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.982 INFO [stderr]    --> src/main.rs:274:5
Nov 29 23:26:58.983 INFO [stderr]     |
Nov 29 23:26:58.983 INFO [stderr] 274 |                 io::stdout().flush();
Nov 29 23:26:58.983 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.983 INFO [stderr]     |
Nov 29 23:26:58.983 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.983 INFO [stderr] 
Nov 29 23:26:58.983 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.983 INFO [stderr]    --> src/main.rs:275:5
Nov 29 23:26:58.983 INFO [stderr]     |
Nov 29 23:26:58.983 INFO [stderr] 275 |                 io::stdin().read_line(&mut new_difficulty);
Nov 29 23:26:58.983 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.983 INFO [stderr]     |
Nov 29 23:26:58.983 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.983 INFO [stderr] 
Nov 29 23:26:58.989 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.989 INFO [stderr]    --> src/main.rs:286:5
Nov 29 23:26:58.989 INFO [stderr]     |
Nov 29 23:26:58.989 INFO [stderr] 286 |                 io::stdout().flush();
Nov 29 23:26:58.990 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.990 INFO [stderr]     |
Nov 29 23:26:58.990 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.990 INFO [stderr] 
Nov 29 23:26:58.991 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:26:58.991 INFO [stderr]    --> src/main.rs:287:5
Nov 29 23:26:58.991 INFO [stderr]     |
Nov 29 23:26:58.991 INFO [stderr] 287 |                 io::stdin().read_line(&mut new_reward);
Nov 29 23:26:58.991 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:26:58.991 INFO [stderr]     |
Nov 29 23:26:58.991 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:26:58.991 INFO [stderr] 
Nov 29 23:26:59.017 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.04s
Nov 29 23:26:59.022 INFO [stderr] su: No module specific data is present
Nov 29 23:26:59.947 INFO running `"docker" "inspect" "1f341fa7f19a3e6b994878c33d3bf2474b1c63ecc590264b8770262fcfa69474"`
Nov 29 23:27:00.228 INFO running `"docker" "rm" "-f" "1f341fa7f19a3e6b994878c33d3bf2474b1c63ecc590264b8770262fcfa69474"`
Nov 29 23:27:00.504 INFO [stdout] 1f341fa7f19a3e6b994878c33d3bf2474b1c63ecc590264b8770262fcfa69474