Dec 05 16:38:09.449 INFO testing lempiy/blockchain against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 16:38:09.449 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 16:38:10.117 INFO [stdout] 107bcfdcbcfa08e9dd0d2bf597b9ca5e9ff6fa13d2c2b85d2a12f5e911510bd8
Dec 05 16:38:10.122 INFO running `"docker" "start" "-a" "107bcfdcbcfa08e9dd0d2bf597b9ca5e9ff6fa13d2c2b85d2a12f5e911510bd8"`
Dec 05 16:38:11.391 INFO [stderr] usermod: no changes
Dec 05 16:38:11.536 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 05 16:38:12.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.528 INFO [stderr]   --> src/main.rs:16:5
Dec 05 16:38:12.528 INFO [stderr]    |
Dec 05 16:38:12.528 INFO [stderr] 16 |     io::stdout().flush();
Dec 05 16:38:12.528 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.528 INFO [stderr]    |
Dec 05 16:38:12.528 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 16:38:12.528 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.528 INFO [stderr] 
Dec 05 16:38:12.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.528 INFO [stderr]   --> src/main.rs:17:5
Dec 05 16:38:12.528 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 05 16:38:12.529 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:20:5
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 20 |     io::stdout().flush();
Dec 05 16:38:12.529 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:21:5
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 05 16:38:12.529 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:36:9
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 36 |         io::stdout().flush();
Dec 05 16:38:12.529 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:38:9
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 05 16:38:12.529 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:54:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 54 |                 io::stdout().flush();
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:55:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 55 |                 io::stdin().read_line(&mut sender);
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:58:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 58 |                 io::stdout().flush();
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:59:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 59 |                 io::stdin().read_line(&mut reciever);
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:62:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 62 |                 io::stdout().flush();
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.529 INFO [stderr]   --> src/main.rs:63:17
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr] 63 |                 io::stdin().read_line(&mut amount);
Dec 05 16:38:12.529 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.529 INFO [stderr]    |
Dec 05 16:38:12.529 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.529 INFO [stderr] 
Dec 05 16:38:12.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.530 INFO [stderr]   --> src/main.rs:85:17
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr] 85 |                 io::stdout().flush();
Dec 05 16:38:12.530 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.530 INFO [stderr] 
Dec 05 16:38:12.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.530 INFO [stderr]   --> src/main.rs:86:17
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr] 86 |                 io::stdin().read_line(&mut new_diff);
Dec 05 16:38:12.530 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.530 INFO [stderr] 
Dec 05 16:38:12.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.530 INFO [stderr]   --> src/main.rs:96:17
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr] 96 |                 io::stdout().flush();
Dec 05 16:38:12.530 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.530 INFO [stderr] 
Dec 05 16:38:12.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:12.530 INFO [stderr]   --> src/main.rs:97:17
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr] 97 |                 io::stdin().read_line(&mut new_reward);
Dec 05 16:38:12.530 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:12.530 INFO [stderr]    |
Dec 05 16:38:12.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:12.530 INFO [stderr] 
Dec 05 16:38:14.136 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
Dec 05 16:38:14.146 INFO [stderr] su: No module specific data is present
Dec 05 16:38:15.078 INFO running `"docker" "inspect" "107bcfdcbcfa08e9dd0d2bf597b9ca5e9ff6fa13d2c2b85d2a12f5e911510bd8"`
Dec 05 16:38:15.410 INFO running `"docker" "rm" "-f" "107bcfdcbcfa08e9dd0d2bf597b9ca5e9ff6fa13d2c2b85d2a12f5e911510bd8"`
Dec 05 16:38:15.666 INFO [stdout] 107bcfdcbcfa08e9dd0d2bf597b9ca5e9ff6fa13d2c2b85d2a12f5e911510bd8
Dec 05 16:38:15.672 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 16:38:16.317 INFO [stdout] 426247c60f5c3d0912b0e66cbeb911037318df6e1e538a82140782f13f7b63ca
Dec 05 16:38:16.322 INFO running `"docker" "start" "-a" "426247c60f5c3d0912b0e66cbeb911037318df6e1e538a82140782f13f7b63ca"`
Dec 05 16:38:17.949 INFO [stderr] usermod: no changes
Dec 05 16:38:18.088 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:16:5
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 16 |     io::stdout().flush();
Dec 05 16:38:18.901 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:17:5
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 05 16:38:18.901 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:20:5
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 20 |     io::stdout().flush();
Dec 05 16:38:18.901 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:21:5
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 05 16:38:18.901 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:36:9
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 36 |         io::stdout().flush();
Dec 05 16:38:18.901 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:38:9
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 05 16:38:18.901 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:54:17
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 54 |                 io::stdout().flush();
Dec 05 16:38:18.901 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:55:17
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 55 |                 io::stdin().read_line(&mut sender);
Dec 05 16:38:18.901 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:58:17
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 58 |                 io::stdout().flush();
Dec 05 16:38:18.901 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.901 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.901 INFO [stderr]   --> src/main.rs:59:17
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr] 59 |                 io::stdin().read_line(&mut reciever);
Dec 05 16:38:18.901 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.901 INFO [stderr]    |
Dec 05 16:38:18.901 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.901 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:62:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 62 |                 io::stdout().flush();
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:63:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 63 |                 io::stdin().read_line(&mut amount);
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:85:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 85 |                 io::stdout().flush();
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:86:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 86 |                 io::stdin().read_line(&mut new_diff);
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:96:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 96 |                 io::stdout().flush();
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:18.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:38:18.902 INFO [stderr]   --> src/main.rs:97:17
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr] 97 |                 io::stdin().read_line(&mut new_reward);
Dec 05 16:38:18.902 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:38:18.902 INFO [stderr]    |
Dec 05 16:38:18.902 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:38:18.902 INFO [stderr] 
Dec 05 16:38:19.353 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Dec 05 16:38:19.361 INFO [stderr] su: No module specific data is present
Dec 05 16:38:19.974 INFO running `"docker" "inspect" "426247c60f5c3d0912b0e66cbeb911037318df6e1e538a82140782f13f7b63ca"`
Dec 05 16:38:20.184 INFO running `"docker" "rm" "-f" "426247c60f5c3d0912b0e66cbeb911037318df6e1e538a82140782f13f7b63ca"`
Dec 05 16:38:20.528 INFO [stdout] 426247c60f5c3d0912b0e66cbeb911037318df6e1e538a82140782f13f7b63ca
Dec 05 16:38:20.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 16:38:21.064 INFO [stdout] d9ce55769fdd575653b35f36d80d29258ce5a4b38ed94ed11bb0bbd0de3be3a0
Dec 05 16:38:21.070 INFO running `"docker" "start" "-a" "d9ce55769fdd575653b35f36d80d29258ce5a4b38ed94ed11bb0bbd0de3be3a0"`
Dec 05 16:38:22.564 INFO [stderr] usermod: no changes
Dec 05 16:38:22.728 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
Dec 05 16:38:22.728 INFO [stderr]      Running /target/debug/deps/blockchain-fd43f42e54b50c7a
Dec 05 16:38:22.730 INFO [stdout] 
Dec 05 16:38:22.730 INFO [stdout] running 0 tests
Dec 05 16:38:22.730 INFO [stdout] 
Dec 05 16:38:22.730 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 16:38:22.730 INFO [stdout] 
Dec 05 16:38:22.734 INFO [stderr] su: No module specific data is present
Dec 05 16:38:23.478 INFO running `"docker" "inspect" "d9ce55769fdd575653b35f36d80d29258ce5a4b38ed94ed11bb0bbd0de3be3a0"`
Dec 05 16:38:23.738 INFO running `"docker" "rm" "-f" "d9ce55769fdd575653b35f36d80d29258ce5a4b38ed94ed11bb0bbd0de3be3a0"`
Dec 05 16:38:24.235 INFO [stdout] d9ce55769fdd575653b35f36d80d29258ce5a4b38ed94ed11bb0bbd0de3be3a0