Dec 11 05:34:54.945 INFO checking yogesum/blockchain-rs against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 05:34:54.946 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05:34:55.431 INFO [stdout] b1ab4cc68557bf9ab286dc60e2af96587a804d3cca08c7c7438f412631b434c7
Dec 11 05:34:55.433 INFO running `"docker" "start" "-a" "b1ab4cc68557bf9ab286dc60e2af96587a804d3cca08c7c7438f412631b434c7"`
Dec 11 05:34:57.776 INFO [stderr] usermod: no changes
Dec 11 05:34:57.912 INFO [stderr]    Compiling typenum v1.10.0
Dec 11 05:34:57.912 INFO [stderr]     Checking byte-tools v0.2.0
Dec 11 05:34:57.920 INFO [stderr]     Checking arrayref v0.3.4
Dec 11 05:34:57.920 INFO [stderr]     Checking libc v0.2.40
Dec 11 05:34:57.920 INFO [stderr]     Checking num-traits v0.2.2
Dec 11 05:34:57.941 INFO [stderr]     Checking serde v1.0.37
Dec 11 05:34:57.941 INFO [stderr]    Compiling proc-macro2 v0.3.1
Dec 11 05:34:59.163 INFO [stderr]     Checking block-buffer v0.3.3
Dec 11 05:35:05.680 INFO [stderr]     Checking time v0.1.39
Dec 11 05:35:05.944 INFO [stderr]    Compiling quote v0.5.1
Dec 11 05:35:07.422 INFO [stderr]    Compiling syn v0.13.1
Dec 11 05:35:09.181 INFO [stderr]     Checking generic-array v0.9.0
Dec 11 05:35:10.709 INFO [stderr]     Checking digest v0.7.2
Dec 11 05:35:11.131 INFO [stderr]     Checking sha2 v0.7.0
Dec 11 05:35:21.658 INFO [stderr]    Compiling serde_derive_internals v0.23.0
Dec 11 05:35:26.518 INFO [stderr]     Checking serde_json v1.0.13
Dec 11 05:35:26.812 INFO [stderr]    Compiling serde_derive v1.0.37
Dec 11 05:35:37.940 INFO [stderr]     Checking blockchain-rs v0.1.0 (/source)
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:16:5
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 16 |     io::stdout().flush();
Dec 11 05:35:38.682 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:17:5
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 11 05:35:38.682 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:20:5
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 20 |     io::stdout().flush();
Dec 11 05:35:38.682 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:21:5
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 11 05:35:38.682 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:38:9
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 38 |         io::stdout().flush();
Dec 11 05:35:38.682 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:41:9
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 11 05:35:38.682 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:55:17
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 55 |                 io::stdout().flush();
Dec 11 05:35:38.682 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:56:17
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 11 05:35:38.682 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:59:17
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 59 |                 io::stdout().flush();
Dec 11 05:35:38.682 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:60:17
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 11 05:35:38.682 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.682 INFO [stderr] 
Dec 11 05:35:38.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.682 INFO [stderr]   --> src/main.rs:63:17
Dec 11 05:35:38.682 INFO [stderr]    |
Dec 11 05:35:38.682 INFO [stderr] 63 |                 io::stdout().flush();
Dec 11 05:35:38.683 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]   --> src/main.rs:64:17
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 11 05:35:38.683 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]   --> src/main.rs:89:17
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr] 89 |                 io::stdout().flush();
Dec 11 05:35:38.683 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]   --> src/main.rs:90:17
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 11 05:35:38.683 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.683 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]    --> src/main.rs:101:17
Dec 11 05:35:38.683 INFO [stderr]     |
Dec 11 05:35:38.683 INFO [stderr] 101 |                 io::stdout().flush();
Dec 11 05:35:38.683 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]     |
Dec 11 05:35:38.683 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]    --> src/main.rs:102:17
Dec 11 05:35:38.683 INFO [stderr]     |
Dec 11 05:35:38.683 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 11 05:35:38.683 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.683 INFO [stderr]     |
Dec 11 05:35:38.683 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.683 INFO [stderr] 
Dec 11 05:35:38.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.683 INFO [stderr]   --> src/main.rs:16:5
Dec 11 05:35:38.683 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr] 16 |     io::stdout().flush();
Dec 11 05:35:38.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 05:35:38.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.684 INFO [stderr] 
Dec 11 05:35:38.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.684 INFO [stderr]   --> src/main.rs:17:5
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 11 05:35:38.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.684 INFO [stderr] 
Dec 11 05:35:38.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.684 INFO [stderr]   --> src/main.rs:20:5
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr] 20 |     io::stdout().flush();
Dec 11 05:35:38.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.684 INFO [stderr] 
Dec 11 05:35:38.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.684 INFO [stderr]   --> src/main.rs:21:5
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 11 05:35:38.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.684 INFO [stderr] 
Dec 11 05:35:38.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.684 INFO [stderr]   --> src/main.rs:38:9
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr] 38 |         io::stdout().flush();
Dec 11 05:35:38.684 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.684 INFO [stderr]    |
Dec 11 05:35:38.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.684 INFO [stderr] 
Dec 11 05:35:38.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.688 INFO [stderr]   --> src/main.rs:41:9
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 11 05:35:38.688 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.688 INFO [stderr] 
Dec 11 05:35:38.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.688 INFO [stderr]   --> src/main.rs:55:17
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr] 55 |                 io::stdout().flush();
Dec 11 05:35:38.688 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.688 INFO [stderr] 
Dec 11 05:35:38.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.688 INFO [stderr]   --> src/main.rs:56:17
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 11 05:35:38.688 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.688 INFO [stderr] 
Dec 11 05:35:38.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.688 INFO [stderr]   --> src/main.rs:59:17
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr] 59 |                 io::stdout().flush();
Dec 11 05:35:38.688 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.688 INFO [stderr] 
Dec 11 05:35:38.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.688 INFO [stderr]   --> src/main.rs:60:17
Dec 11 05:35:38.688 INFO [stderr]    |
Dec 11 05:35:38.688 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 11 05:35:38.689 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]   --> src/main.rs:63:17
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr] 63 |                 io::stdout().flush();
Dec 11 05:35:38.689 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]   --> src/main.rs:64:17
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 11 05:35:38.689 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]   --> src/main.rs:89:17
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr] 89 |                 io::stdout().flush();
Dec 11 05:35:38.689 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]   --> src/main.rs:90:17
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 11 05:35:38.689 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]    |
Dec 11 05:35:38.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]    --> src/main.rs:101:17
Dec 11 05:35:38.689 INFO [stderr]     |
Dec 11 05:35:38.689 INFO [stderr] 101 |                 io::stdout().flush();
Dec 11 05:35:38.689 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]     |
Dec 11 05:35:38.689 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.689 INFO [stderr] 
Dec 11 05:35:38.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:38.689 INFO [stderr]    --> src/main.rs:102:17
Dec 11 05:35:38.689 INFO [stderr]     |
Dec 11 05:35:38.689 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 11 05:35:38.689 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:38.689 INFO [stderr]     |
Dec 11 05:35:38.690 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:38.690 INFO [stderr] 
Dec 11 05:35:38.752 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.94s
Dec 11 05:35:38.767 INFO [stderr] su: No module specific data is present
Dec 11 05:35:40.336 INFO running `"docker" "inspect" "b1ab4cc68557bf9ab286dc60e2af96587a804d3cca08c7c7438f412631b434c7"`
Dec 11 05:35:40.680 INFO running `"docker" "rm" "-f" "b1ab4cc68557bf9ab286dc60e2af96587a804d3cca08c7c7438f412631b434c7"`
Dec 11 05:35:41.044 INFO [stdout] b1ab4cc68557bf9ab286dc60e2af96587a804d3cca08c7c7438f412631b434c7