Dec 11 16:49:52.830 INFO checking iveltondequeiroz/tiny-chain against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:49:52.830 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 16:49:53.238 INFO [stdout] f6a18bc140a3078ed854cc5d803075775f6fab497ad75e93e92b957051e6d5d6
Dec 11 16:49:53.240 INFO running `"docker" "start" "-a" "f6a18bc140a3078ed854cc5d803075775f6fab497ad75e93e92b957051e6d5d6"`
Dec 11 16:49:54.901 INFO [stderr] usermod: no changes
Dec 11 16:49:55.032 INFO [stderr]     Checking byteorder v1.2.7
Dec 11 16:49:55.040 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 11 16:49:55.908 INFO [stderr]     Checking block-buffer v0.7.0
Dec 11 16:49:56.368 INFO [stderr]     Checking sha2 v0.8.0
Dec 11 16:50:10.556 INFO [stderr]     Checking tinychain v0.1.0 (/source)
Dec 11 16:50:12.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.138 INFO [stderr]   --> src/main.rs:16:5
Dec 11 16:50:12.138 INFO [stderr]    |
Dec 11 16:50:12.138 INFO [stderr] 16 |     io::stdout().flush();
Dec 11 16:50:12.138 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.138 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:17:5
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 11 16:50:12.139 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:19:5
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 19 |     io::stdout().flush();
Dec 11 16:50:12.139 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:20:5
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 11 16:50:12.139 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:33:9
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 33 |         io::stdout().flush();
Dec 11 16:50:12.139 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:35:9
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Dec 11 16:50:12.139 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:50:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 50 |                 io::stdout().flush();
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:51:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:53:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 53 |                 io::stdout().flush();
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:54:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:56:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 56 |                 io::stdout().flush();
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.139 INFO [stderr]   --> src/main.rs:57:17
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Dec 11 16:50:12.139 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.139 INFO [stderr]    |
Dec 11 16:50:12.139 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.139 INFO [stderr] 
Dec 11 16:50:12.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.140 INFO [stderr]   --> src/main.rs:81:17
Dec 11 16:50:12.140 INFO [stderr]    |
Dec 11 16:50:12.140 INFO [stderr] 81 |                 io::stdout().flush();
Dec 11 16:50:12.140 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.140 INFO [stderr]    |
Dec 11 16:50:12.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.140 INFO [stderr] 
Dec 11 16:50:12.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.140 INFO [stderr]   --> src/main.rs:82:17
Dec 11 16:50:12.140 INFO [stderr]    |
Dec 11 16:50:12.140 INFO [stderr] 82 |                 io::stdin().read_line(&mut new_diff);
Dec 11 16:50:12.140 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.140 INFO [stderr]    |
Dec 11 16:50:12.140 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.140 INFO [stderr] 
Dec 11 16:50:12.140 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.140 INFO [stderr]   --> src/main.rs:92:17
Dec 11 16:50:12.140 INFO [stderr]    |
Dec 11 16:50:12.140 INFO [stderr] 92 |                 io::stdout().flush();
Dec 11 16:50:12.140 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.142 INFO [stderr]    |
Dec 11 16:50:12.142 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.142 INFO [stderr] 
Dec 11 16:50:12.142 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.142 INFO [stderr]   --> src/main.rs:93:17
Dec 11 16:50:12.142 INFO [stderr]    |
Dec 11 16:50:12.142 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Dec 11 16:50:12.142 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.142 INFO [stderr]    |
Dec 11 16:50:12.142 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.142 INFO [stderr] 
Dec 11 16:50:12.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.280 INFO [stderr]   --> src/main.rs:16:5
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr] 16 |     io::stdout().flush();
Dec 11 16:50:12.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:50:12.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.280 INFO [stderr] 
Dec 11 16:50:12.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.280 INFO [stderr]   --> src/main.rs:17:5
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 11 16:50:12.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.280 INFO [stderr] 
Dec 11 16:50:12.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.280 INFO [stderr]   --> src/main.rs:19:5
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr] 19 |     io::stdout().flush();
Dec 11 16:50:12.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.280 INFO [stderr] 
Dec 11 16:50:12.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.280 INFO [stderr]   --> src/main.rs:20:5
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr] 20 |     io::stdin().read_line(&mut difficulty);
Dec 11 16:50:12.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.280 INFO [stderr] 
Dec 11 16:50:12.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.280 INFO [stderr]   --> src/main.rs:33:9
Dec 11 16:50:12.280 INFO [stderr]    |
Dec 11 16:50:12.280 INFO [stderr] 33 |         io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:35:9
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 35 |         io::stdin().read_line(&mut choice);
Dec 11 16:50:12.281 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:50:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 50 |                 io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:51:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 51 |                 io::stdin().read_line(&mut sender);
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:53:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 53 |                 io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:54:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 54 |                 io::stdin().read_line(&mut receiver);
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:56:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 56 |                 io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:57:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 57 |                 io::stdin().read_line(&mut amount);
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:81:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 81 |                 io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:82:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 82 |                 io::stdin().read_line(&mut new_diff);
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:92:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 92 |                 io::stdout().flush();
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.281 INFO [stderr] 
Dec 11 16:50:12.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:50:12.281 INFO [stderr]   --> src/main.rs:93:17
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr] 93 |                 io::stdin().read_line(&mut new_reward);
Dec 11 16:50:12.281 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:50:12.281 INFO [stderr]    |
Dec 11 16:50:12.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:50:12.282 INFO [stderr] 
Dec 11 16:50:12.312 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.38s
Dec 11 16:50:12.360 INFO [stderr] su: No module specific data is present
Dec 11 16:50:13.330 INFO running `"docker" "inspect" "f6a18bc140a3078ed854cc5d803075775f6fab497ad75e93e92b957051e6d5d6"`
Dec 11 16:50:13.532 INFO running `"docker" "rm" "-f" "f6a18bc140a3078ed854cc5d803075775f6fab497ad75e93e92b957051e6d5d6"`
Dec 11 16:50:13.872 INFO [stdout] f6a18bc140a3078ed854cc5d803075775f6fab497ad75e93e92b957051e6d5d6