Dec 13 12:54:05.523 INFO testing lempiy/blockchain against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 12:54:05.523 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:54:06.220 INFO [stdout] 8a53b570f8ab865cee409703d3dbb370b9b56c552e174f60ab0db289ff54a2d8
Dec 13 12:54:06.229 INFO running `"docker" "start" "-a" "8a53b570f8ab865cee409703d3dbb370b9b56c552e174f60ab0db289ff54a2d8"`
Dec 13 12:54:07.571 INFO [stderr] usermod: no changes
Dec 13 12:54:07.711 INFO [stderr]    Compiling serde_json v1.0.14
Dec 13 12:54:11.974 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:16:5
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 16 |     io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:17:5
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 13 12:54:12.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:20:5
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 20 |     io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:21:5
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 13 12:54:12.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:36:9
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 36 |         io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:38:9
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 13 12:54:12.979 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:54:17
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 54 |                 io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:55:17
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 55 |                 io::stdin().read_line(&mut sender);
Dec 13 12:54:12.979 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:58:17
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 58 |                 io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:59:17
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 59 |                 io::stdin().read_line(&mut reciever);
Dec 13 12:54:12.979 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.979 INFO [stderr]   --> src/main.rs:62:17
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr] 62 |                 io::stdout().flush();
Dec 13 12:54:12.979 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.979 INFO [stderr]    |
Dec 13 12:54:12.979 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.979 INFO [stderr] 
Dec 13 12:54:12.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.980 INFO [stderr]   --> src/main.rs:63:17
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr] 63 |                 io::stdin().read_line(&mut amount);
Dec 13 12:54:12.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.980 INFO [stderr] 
Dec 13 12:54:12.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.980 INFO [stderr]   --> src/main.rs:85:17
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr] 85 |                 io::stdout().flush();
Dec 13 12:54:12.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.980 INFO [stderr] 
Dec 13 12:54:12.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.980 INFO [stderr]   --> src/main.rs:86:17
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr] 86 |                 io::stdin().read_line(&mut new_diff);
Dec 13 12:54:12.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.980 INFO [stderr] 
Dec 13 12:54:12.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.980 INFO [stderr]   --> src/main.rs:96:17
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr] 96 |                 io::stdout().flush();
Dec 13 12:54:12.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.980 INFO [stderr] 
Dec 13 12:54:12.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:12.980 INFO [stderr]   --> src/main.rs:97:17
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr] 97 |                 io::stdin().read_line(&mut new_reward);
Dec 13 12:54:12.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:12.980 INFO [stderr]    |
Dec 13 12:54:12.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:12.980 INFO [stderr] 
Dec 13 12:54:14.142 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
Dec 13 12:54:14.151 INFO [stderr] su: No module specific data is present
Dec 13 12:54:15.240 INFO running `"docker" "inspect" "8a53b570f8ab865cee409703d3dbb370b9b56c552e174f60ab0db289ff54a2d8"`
Dec 13 12:54:15.587 INFO running `"docker" "rm" "-f" "8a53b570f8ab865cee409703d3dbb370b9b56c552e174f60ab0db289ff54a2d8"`
Dec 13 12:54:15.995 INFO [stdout] 8a53b570f8ab865cee409703d3dbb370b9b56c552e174f60ab0db289ff54a2d8
Dec 13 12:54:15.997 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:54:16.623 INFO [stdout] e8c0bb36870856788aadaea2aecfb09553a5b97ea1bb55404b0fefe092b8a0a8
Dec 13 12:54:16.628 INFO running `"docker" "start" "-a" "e8c0bb36870856788aadaea2aecfb09553a5b97ea1bb55404b0fefe092b8a0a8"`
Dec 13 12:54:17.679 INFO [stderr] usermod: no changes
Dec 13 12:54:17.839 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 13 12:54:18.644 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.644 INFO [stderr]   --> src/main.rs:16:5
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr] 16 |     io::stdout().flush();
Dec 13 12:54:18.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 12:54:18.644 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.644 INFO [stderr] 
Dec 13 12:54:18.644 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.644 INFO [stderr]   --> src/main.rs:17:5
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 13 12:54:18.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.644 INFO [stderr] 
Dec 13 12:54:18.644 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.644 INFO [stderr]   --> src/main.rs:20:5
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr] 20 |     io::stdout().flush();
Dec 13 12:54:18.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.644 INFO [stderr] 
Dec 13 12:54:18.644 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.644 INFO [stderr]   --> src/main.rs:21:5
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 13 12:54:18.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.644 INFO [stderr]    |
Dec 13 12:54:18.644 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.644 INFO [stderr] 
Dec 13 12:54:18.644 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:36:9
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 36 |         io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:38:9
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 13 12:54:18.645 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:54:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 54 |                 io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:55:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 55 |                 io::stdin().read_line(&mut sender);
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:58:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 58 |                 io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:59:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 59 |                 io::stdin().read_line(&mut reciever);
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:62:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 62 |                 io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:63:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 63 |                 io::stdin().read_line(&mut amount);
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:85:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 85 |                 io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:86:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 86 |                 io::stdin().read_line(&mut new_diff);
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:96:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 96 |                 io::stdout().flush();
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.645 INFO [stderr] 
Dec 13 12:54:18.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:54:18.645 INFO [stderr]   --> src/main.rs:97:17
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr] 97 |                 io::stdin().read_line(&mut new_reward);
Dec 13 12:54:18.645 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:54:18.645 INFO [stderr]    |
Dec 13 12:54:18.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:54:18.646 INFO [stderr] 
Dec 13 12:54:18.915 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 13 12:54:18.934 INFO [stderr] su: No module specific data is present
Dec 13 12:54:19.606 INFO running `"docker" "inspect" "e8c0bb36870856788aadaea2aecfb09553a5b97ea1bb55404b0fefe092b8a0a8"`
Dec 13 12:54:19.925 INFO running `"docker" "rm" "-f" "e8c0bb36870856788aadaea2aecfb09553a5b97ea1bb55404b0fefe092b8a0a8"`
Dec 13 12:54:20.165 INFO [stdout] e8c0bb36870856788aadaea2aecfb09553a5b97ea1bb55404b0fefe092b8a0a8
Dec 13 12:54:20.167 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:54:20.739 INFO [stdout] 7eae7f48bd16a1f4956b165dcaf700621649f86e84aba5a9880315bb65477161
Dec 13 12:54:20.745 INFO running `"docker" "start" "-a" "7eae7f48bd16a1f4956b165dcaf700621649f86e84aba5a9880315bb65477161"`
Dec 13 12:54:22.415 INFO [stderr] usermod: no changes
Dec 13 12:54:22.559 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
Dec 13 12:54:22.567 INFO [stderr]      Running /target/debug/deps/blockchain-cb6130a604e7d3fd
Dec 13 12:54:22.569 INFO [stdout] 
Dec 13 12:54:22.569 INFO [stdout] running 0 tests
Dec 13 12:54:22.569 INFO [stdout] 
Dec 13 12:54:22.569 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 12:54:22.569 INFO [stdout] 
Dec 13 12:54:22.575 INFO [stderr] su: No module specific data is present
Dec 13 12:54:23.228 INFO running `"docker" "inspect" "7eae7f48bd16a1f4956b165dcaf700621649f86e84aba5a9880315bb65477161"`
Dec 13 12:54:23.479 INFO running `"docker" "rm" "-f" "7eae7f48bd16a1f4956b165dcaf700621649f86e84aba5a9880315bb65477161"`
Dec 13 12:54:23.810 INFO [stdout] 7eae7f48bd16a1f4956b165dcaf700621649f86e84aba5a9880315bb65477161