Dec 05 00:46:22.231 INFO testing yogesum/blockchain-rs against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 00:46:22.231 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 00:46:22.779 INFO [stdout] d380f746ad5027b3c67e43488553e997e8a699073b91b8fa8526b41497849d97
Dec 05 00:46:22.788 INFO running `"docker" "start" "-a" "d380f746ad5027b3c67e43488553e997e8a699073b91b8fa8526b41497849d97"`
Dec 05 00:46:23.924 INFO [stderr] usermod: no changes
Dec 05 00:46:24.076 INFO [stderr]    Compiling typenum v1.10.0
Dec 05 00:46:24.076 INFO [stderr]    Compiling byte-tools v0.2.0
Dec 05 00:46:24.076 INFO [stderr]    Compiling arrayref v0.3.4
Dec 05 00:46:24.080 INFO [stderr]    Compiling itoa v0.4.1
Dec 05 00:46:24.084 INFO [stderr]    Compiling serde v1.0.37
Dec 05 00:46:24.084 INFO [stderr]    Compiling num-traits v0.2.2
Dec 05 00:46:24.084 INFO [stderr]    Compiling proc-macro2 v0.3.1
Dec 05 00:46:25.440 INFO [stderr]    Compiling block-buffer v0.3.3
Dec 05 00:46:31.084 INFO [stderr]    Compiling quote v0.5.1
Dec 05 00:46:31.732 INFO [stderr]    Compiling generic-array v0.9.0
Dec 05 00:46:32.692 INFO [stderr]    Compiling syn v0.13.1
Dec 05 00:46:33.456 INFO [stderr]    Compiling digest v0.7.2
Dec 05 00:46:34.000 INFO [stderr]    Compiling sha2 v0.7.0
Dec 05 00:46:47.165 INFO [stderr]    Compiling serde_derive_internals v0.23.0
Dec 05 00:46:51.808 INFO [stderr]    Compiling serde_json v1.0.13
Dec 05 00:46:52.606 INFO [stderr]    Compiling serde_derive v1.0.37
Dec 05 00:47:05.153 INFO [stderr]    Compiling blockchain-rs v0.1.0 (/source)
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:16:5
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 16 |     io::stdout().flush();
Dec 05 00:47:05.568 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:47:05.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.568 INFO [stderr] 
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:17:5
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 05 00:47:05.568 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.568 INFO [stderr] 
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:20:5
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 20 |     io::stdout().flush();
Dec 05 00:47:05.568 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.568 INFO [stderr] 
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:21:5
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 05 00:47:05.568 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.568 INFO [stderr] 
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:38:9
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 38 |         io::stdout().flush();
Dec 05 00:47:05.568 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.568 INFO [stderr] 
Dec 05 00:47:05.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.568 INFO [stderr]   --> src/main.rs:41:9
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.568 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 05 00:47:05.568 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.568 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:55:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 55 |                 io::stdout().flush();
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:56:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:59:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 59 |                 io::stdout().flush();
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:60:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:63:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 63 |                 io::stdout().flush();
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:64:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:89:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 89 |                 io::stdout().flush();
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]   --> src/main.rs:90:17
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 05 00:47:05.569 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]    |
Dec 05 00:47:05.569 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]    --> src/main.rs:101:17
Dec 05 00:47:05.569 INFO [stderr]     |
Dec 05 00:47:05.569 INFO [stderr] 101 |                 io::stdout().flush();
Dec 05 00:47:05.569 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]     |
Dec 05 00:47:05.569 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:05.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:05.569 INFO [stderr]    --> src/main.rs:102:17
Dec 05 00:47:05.569 INFO [stderr]     |
Dec 05 00:47:05.569 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 05 00:47:05.569 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:05.569 INFO [stderr]     |
Dec 05 00:47:05.569 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:05.569 INFO [stderr] 
Dec 05 00:47:06.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.93s
Dec 05 00:47:06.900 INFO [stderr] su: No module specific data is present
Dec 05 00:47:07.642 INFO running `"docker" "inspect" "d380f746ad5027b3c67e43488553e997e8a699073b91b8fa8526b41497849d97"`
Dec 05 00:47:07.876 INFO running `"docker" "rm" "-f" "d380f746ad5027b3c67e43488553e997e8a699073b91b8fa8526b41497849d97"`
Dec 05 00:47:08.151 INFO [stdout] d380f746ad5027b3c67e43488553e997e8a699073b91b8fa8526b41497849d97
Dec 05 00:47:08.158 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 00:47:08.688 INFO [stdout] da6239ab66bcec878fdcda24f2cdc92c8978a8bfca5ee1d80d4f6748dff7c09d
Dec 05 00:47:08.690 INFO running `"docker" "start" "-a" "da6239ab66bcec878fdcda24f2cdc92c8978a8bfca5ee1d80d4f6748dff7c09d"`
Dec 05 00:47:10.433 INFO [stderr] usermod: no changes
Dec 05 00:47:10.502 INFO [stderr]    Compiling blockchain-rs v0.1.0 (/source)
Dec 05 00:47:11.000 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.000 INFO [stderr]   --> src/main.rs:16:5
Dec 05 00:47:11.000 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 16 |     io::stdout().flush();
Dec 05 00:47:11.001 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:17:5
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 17 |     io::stdin().read_line(&mut miner_addr);
Dec 05 00:47:11.001 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:20:5
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 20 |     io::stdout().flush();
Dec 05 00:47:11.001 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:21:5
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 21 |     io::stdin().read_line(&mut difficulty);
Dec 05 00:47:11.001 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:38:9
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 38 |         io::stdout().flush();
Dec 05 00:47:11.001 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:41:9
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 41 |         io::stdin().read_line(&mut choice);
Dec 05 00:47:11.001 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:55:17
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 55 |                 io::stdout().flush();
Dec 05 00:47:11.001 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:56:17
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 56 |                 io::stdin().read_line(&mut sender);
Dec 05 00:47:11.001 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.001 INFO [stderr] 
Dec 05 00:47:11.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.001 INFO [stderr]   --> src/main.rs:59:17
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr] 59 |                 io::stdout().flush();
Dec 05 00:47:11.001 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.001 INFO [stderr]    |
Dec 05 00:47:11.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]   --> src/main.rs:60:17
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr] 60 |                 io::stdin().read_line(&mut receiver);
Dec 05 00:47:11.005 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]   --> src/main.rs:63:17
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr] 63 |                 io::stdout().flush();
Dec 05 00:47:11.005 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]   --> src/main.rs:64:17
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr] 64 |                 io::stdin().read_line(&mut amount);
Dec 05 00:47:11.005 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]   --> src/main.rs:89:17
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr] 89 |                 io::stdout().flush();
Dec 05 00:47:11.005 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]   --> src/main.rs:90:17
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr] 90 |                 io::stdin().read_line(&mut new_diff);
Dec 05 00:47:11.005 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]    |
Dec 05 00:47:11.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.005 INFO [stderr] 
Dec 05 00:47:11.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.005 INFO [stderr]    --> src/main.rs:101:17
Dec 05 00:47:11.005 INFO [stderr]     |
Dec 05 00:47:11.005 INFO [stderr] 101 |                 io::stdout().flush();
Dec 05 00:47:11.005 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.005 INFO [stderr]     |
Dec 05 00:47:11.005 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.006 INFO [stderr] 
Dec 05 00:47:11.006 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:47:11.006 INFO [stderr]    --> src/main.rs:102:17
Dec 05 00:47:11.006 INFO [stderr]     |
Dec 05 00:47:11.006 INFO [stderr] 102 |                 io::stdin().read_line(&mut new_reward);
Dec 05 00:47:11.006 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:47:11.006 INFO [stderr]     |
Dec 05 00:47:11.006 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:47:11.006 INFO [stderr] 
Dec 05 00:47:11.409 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 05 00:47:11.415 INFO [stderr] su: No module specific data is present
Dec 05 00:47:12.095 INFO running `"docker" "inspect" "da6239ab66bcec878fdcda24f2cdc92c8978a8bfca5ee1d80d4f6748dff7c09d"`
Dec 05 00:47:12.328 INFO running `"docker" "rm" "-f" "da6239ab66bcec878fdcda24f2cdc92c8978a8bfca5ee1d80d4f6748dff7c09d"`
Dec 05 00:47:12.684 INFO [stdout] da6239ab66bcec878fdcda24f2cdc92c8978a8bfca5ee1d80d4f6748dff7c09d
Dec 05 00:47:12.690 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 00:47:13.250 INFO [stdout] c770eb1f7beb30da05dce11995ddb3840ebc753c0724cee34ebc306a552ddf66
Dec 05 00:47:13.260 INFO running `"docker" "start" "-a" "c770eb1f7beb30da05dce11995ddb3840ebc753c0724cee34ebc306a552ddf66"`
Dec 05 00:47:14.762 INFO [stderr] usermod: no changes
Dec 05 00:47:14.886 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Dec 05 00:47:14.888 INFO [stderr]      Running /target/debug/deps/blockchain_rs-ede5a6fd574feba3
Dec 05 00:47:14.892 INFO [stdout] 
Dec 05 00:47:14.892 INFO [stdout] running 0 tests
Dec 05 00:47:14.892 INFO [stdout] 
Dec 05 00:47:14.892 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 00:47:14.892 INFO [stdout] 
Dec 05 00:47:14.897 INFO [stderr] su: No module specific data is present
Dec 05 00:47:15.596 INFO running `"docker" "inspect" "c770eb1f7beb30da05dce11995ddb3840ebc753c0724cee34ebc306a552ddf66"`
Dec 05 00:47:15.911 INFO running `"docker" "rm" "-f" "c770eb1f7beb30da05dce11995ddb3840ebc753c0724cee34ebc306a552ddf66"`
Dec 05 00:47:16.152 INFO [stdout] c770eb1f7beb30da05dce11995ddb3840ebc753c0724cee34ebc306a552ddf66