Dec 06 06:34:27.341 INFO testing arjanvaneersel/rust-blockchain against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 06:34:27.341 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 06 06:34:27.732 INFO [stdout] e7f7010d0b83298d483d7c915951425fd7ec2471d1073afbc9ff60f2887474fa
Dec 06 06:34:27.734 INFO running `"docker" "start" "-a" "e7f7010d0b83298d483d7c915951425fd7ec2471d1073afbc9ff60f2887474fa"`
Dec 06 06:34:28.363 INFO [stderr] usermod: no changes
Dec 06 06:34:28.456 INFO [stderr]    Compiling serde_json v1.0.12
Dec 06 06:34:31.404 INFO [stderr]    Compiling bfs v0.1.0 (/source)
Dec 06 06:34:32.369 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.370 INFO [stderr]   --> src/main.rs:17:5
Dec 06 06:34:32.370 INFO [stderr]    |
Dec 06 06:34:32.370 INFO [stderr] 17 |     io::stdout().flush();
Dec 06 06:34:32.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.370 INFO [stderr]    |
Dec 06 06:34:32.370 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 06:34:32.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.370 INFO [stderr] 
Dec 06 06:34:32.370 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.370 INFO [stderr]   --> src/main.rs:18:5
Dec 06 06:34:32.370 INFO [stderr]    |
Dec 06 06:34:32.370 INFO [stderr] 18 |     io::stdin().read_line(&mut miner_addr);
Dec 06 06:34:32.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.370 INFO [stderr]    |
Dec 06 06:34:32.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.370 INFO [stderr] 
Dec 06 06:34:32.370 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.370 INFO [stderr]   --> src/main.rs:21:5
Dec 06 06:34:32.370 INFO [stderr]    |
Dec 06 06:34:32.370 INFO [stderr] 21 |     io::stdout().flush();
Dec 06 06:34:32.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.371 INFO [stderr] 
Dec 06 06:34:32.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.371 INFO [stderr]   --> src/main.rs:22:5
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 06 06:34:32.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.371 INFO [stderr] 
Dec 06 06:34:32.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.371 INFO [stderr]   --> src/main.rs:36:9
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr] 36 |         io::stdout().flush();
Dec 06 06:34:32.371 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.371 INFO [stderr] 
Dec 06 06:34:32.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.371 INFO [stderr]   --> src/main.rs:38:9
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.371 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 06 06:34:32.371 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.371 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:52:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 52 |                 io::stdout().flush();
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:53:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 53 |                 io::stdin().read_line(&mut sender);
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:56:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 56 |                 io::stdout().flush();
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:57:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 57 |                 io::stdin().read_line(&mut receiver);
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:60:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 60 |                 io::stdout().flush();
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:61:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 61 |                 io::stdin().read_line(&mut amount);
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:80:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 80 |                 io::stdout().flush();
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:81:17
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr] 81 |                 io::stdin().read_line(&mut new_diff);
Dec 06 06:34:32.372 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.372 INFO [stderr]    |
Dec 06 06:34:32.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.372 INFO [stderr] 
Dec 06 06:34:32.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.372 INFO [stderr]   --> src/main.rs:93:17
Dec 06 06:34:32.373 INFO [stderr]    |
Dec 06 06:34:32.373 INFO [stderr] 93 |                 io::stdout().flush();
Dec 06 06:34:32.373 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.373 INFO [stderr]    |
Dec 06 06:34:32.373 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.373 INFO [stderr] 
Dec 06 06:34:32.373 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:32.373 INFO [stderr]   --> src/main.rs:94:17
Dec 06 06:34:32.373 INFO [stderr]    |
Dec 06 06:34:32.373 INFO [stderr] 94 |                 io::stdin().read_line(&mut new_reward);
Dec 06 06:34:32.373 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:32.373 INFO [stderr]    |
Dec 06 06:34:32.373 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:32.373 INFO [stderr] 
Dec 06 06:34:33.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.16s
Dec 06 06:34:33.560 INFO [stderr] su: No module specific data is present
Dec 06 06:34:34.266 INFO running `"docker" "inspect" "e7f7010d0b83298d483d7c915951425fd7ec2471d1073afbc9ff60f2887474fa"`
Dec 06 06:34:34.554 INFO running `"docker" "rm" "-f" "e7f7010d0b83298d483d7c915951425fd7ec2471d1073afbc9ff60f2887474fa"`
Dec 06 06:34:34.785 INFO [stdout] e7f7010d0b83298d483d7c915951425fd7ec2471d1073afbc9ff60f2887474fa
Dec 06 06:34:34.796 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 06 06:34:35.322 INFO [stdout] 80bec81fe6ddfc3186898c501e299e77f1bf9e313f1471a7231540c05f9eeefb
Dec 06 06:34:35.322 INFO running `"docker" "start" "-a" "80bec81fe6ddfc3186898c501e299e77f1bf9e313f1471a7231540c05f9eeefb"`
Dec 06 06:34:36.367 INFO [stderr] usermod: no changes
Dec 06 06:34:36.427 INFO [stderr]    Compiling bfs v0.1.0 (/source)
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:17:5
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 17 |     io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:18:5
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 18 |     io::stdin().read_line(&mut miner_addr);
Dec 06 06:34:37.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:21:5
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 21 |     io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:22:5
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 06 06:34:37.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:36:9
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 36 |         io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:38:9
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 06 06:34:37.460 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:52:17
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 52 |                 io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:53:17
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 53 |                 io::stdin().read_line(&mut sender);
Dec 06 06:34:37.460 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:56:17
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 56 |                 io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:57:17
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 57 |                 io::stdin().read_line(&mut receiver);
Dec 06 06:34:37.460 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.460 INFO [stderr] 
Dec 06 06:34:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.460 INFO [stderr]   --> src/main.rs:60:17
Dec 06 06:34:37.460 INFO [stderr]    |
Dec 06 06:34:37.460 INFO [stderr] 60 |                 io::stdout().flush();
Dec 06 06:34:37.460 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.461 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.461 INFO [stderr]   --> src/main.rs:61:17
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr] 61 |                 io::stdin().read_line(&mut amount);
Dec 06 06:34:37.461 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.461 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.461 INFO [stderr]   --> src/main.rs:80:17
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr] 80 |                 io::stdout().flush();
Dec 06 06:34:37.461 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.461 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.461 INFO [stderr]   --> src/main.rs:81:17
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr] 81 |                 io::stdin().read_line(&mut new_diff);
Dec 06 06:34:37.461 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.461 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.461 INFO [stderr]   --> src/main.rs:93:17
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr] 93 |                 io::stdout().flush();
Dec 06 06:34:37.461 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.461 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 06:34:37.461 INFO [stderr]   --> src/main.rs:94:17
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr] 94 |                 io::stdin().read_line(&mut new_reward);
Dec 06 06:34:37.461 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 06:34:37.461 INFO [stderr]    |
Dec 06 06:34:37.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 06:34:37.461 INFO [stderr] 
Dec 06 06:34:37.770 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Dec 06 06:34:37.771 INFO [stderr] su: No module specific data is present
Dec 06 06:34:38.091 INFO running `"docker" "inspect" "80bec81fe6ddfc3186898c501e299e77f1bf9e313f1471a7231540c05f9eeefb"`
Dec 06 06:34:38.320 INFO running `"docker" "rm" "-f" "80bec81fe6ddfc3186898c501e299e77f1bf9e313f1471a7231540c05f9eeefb"`
Dec 06 06:34:38.592 INFO [stdout] 80bec81fe6ddfc3186898c501e299e77f1bf9e313f1471a7231540c05f9eeefb
Dec 06 06:34:38.595 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 06 06:34:38.956 INFO [stdout] a82fc535464ac4ce48dca1f7e339055976af2dff1abaaf2582cfdee299eb0185
Dec 06 06:34:38.962 INFO running `"docker" "start" "-a" "a82fc535464ac4ce48dca1f7e339055976af2dff1abaaf2582cfdee299eb0185"`
Dec 06 06:34:40.240 INFO [stderr] usermod: no changes
Dec 06 06:34:40.357 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Dec 06 06:34:40.372 INFO [stderr]      Running /target/debug/deps/bfs-cdb79da72acd9ae1
Dec 06 06:34:40.372 INFO [stdout] 
Dec 06 06:34:40.372 INFO [stdout] running 0 tests
Dec 06 06:34:40.372 INFO [stdout] 
Dec 06 06:34:40.372 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 06:34:40.372 INFO [stdout] 
Dec 06 06:34:40.376 INFO [stderr] su: No module specific data is present
Dec 06 06:34:40.956 INFO running `"docker" "inspect" "a82fc535464ac4ce48dca1f7e339055976af2dff1abaaf2582cfdee299eb0185"`
Dec 06 06:34:41.118 INFO running `"docker" "rm" "-f" "a82fc535464ac4ce48dca1f7e339055976af2dff1abaaf2582cfdee299eb0185"`
Dec 06 06:34:41.297 INFO [stdout] a82fc535464ac4ce48dca1f7e339055976af2dff1abaaf2582cfdee299eb0185