Dec 19 18:05:09.181 INFO checking dennisfurrer/RustBlockchain against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:05:09.181 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/dennisfurrer/RustBlockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:05:09.504 INFO [stdout] a30d2505217db6f3a750559ec03ee91c42bee71c7574e74e1e05169fac3bf516
Dec 19 18:05:09.506 INFO running `"docker" "start" "-a" "a30d2505217db6f3a750559ec03ee91c42bee71c7574e74e1e05169fac3bf516"`
Dec 19 18:05:10.630 INFO [stderr]     Checking blockchain v0.1.0 (/opt/crater/workdir)
Dec 19 18:05:11.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.536 INFO [stderr]   --> src/main.rs:18:5
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr] 18 |     io::stdout().flush();
Dec 19 18:05:11.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 18:05:11.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.536 INFO [stderr] 
Dec 19 18:05:11.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.536 INFO [stderr]   --> src/main.rs:19:5
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr] 19 |     io::stdin().read_line(&mut miner_address);
Dec 19 18:05:11.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.536 INFO [stderr] 
Dec 19 18:05:11.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.536 INFO [stderr]   --> src/main.rs:21:5
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr] 21 |     io::stdout().flush();
Dec 19 18:05:11.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.536 INFO [stderr] 
Dec 19 18:05:11.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.536 INFO [stderr]   --> src/main.rs:22:5
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 19 18:05:11.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.536 INFO [stderr] 
Dec 19 18:05:11.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.536 INFO [stderr]   --> src/main.rs:38:9
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr] 38 |         io::stdout().flush();
Dec 19 18:05:11.536 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.536 INFO [stderr]    |
Dec 19 18:05:11.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:40:9
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 40 |         io::stdin().read_line(&mut choice);
Dec 19 18:05:11.537 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:71:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 71 |                 io::stdout().flush();
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:72:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 72 |                 io::stdin().read_line(&mut from);
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:74:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 74 |                 io::stdout().flush();
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:75:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 75 |                 io::stdin().read_line(&mut to);
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:77:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 77 |                 io::stdout().flush();
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]   --> src/main.rs:78:17
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr] 78 |                 io::stdin().read_line(&mut amount);
Dec 19 18:05:11.537 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]    |
Dec 19 18:05:11.537 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]    --> src/main.rs:106:17
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr] 106 |                 io::stdout().flush();
Dec 19 18:05:11.537 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]    --> src/main.rs:107:17
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr] 107 |                 io::stdin().read_line(&mut new_diff);
Dec 19 18:05:11.537 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]    --> src/main.rs:119:17
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr] 119 |                 io::stdout().flush();
Dec 19 18:05:11.537 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.537 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.537 INFO [stderr]    --> src/main.rs:120:17
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr] 120 |                 io::stdin().read_line(&mut new_reward);
Dec 19 18:05:11.537 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.537 INFO [stderr]     |
Dec 19 18:05:11.537 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.537 INFO [stderr] 
Dec 19 18:05:11.575 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.575 INFO [stderr]   --> src/main.rs:18:5
Dec 19 18:05:11.575 INFO [stderr]    |
Dec 19 18:05:11.575 INFO [stderr] 18 |     io::stdout().flush();
Dec 19 18:05:11.575 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.575 INFO [stderr]    |
Dec 19 18:05:11.575 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 18:05:11.575 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.575 INFO [stderr] 
Dec 19 18:05:11.575 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:19:5
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 19 |     io::stdin().read_line(&mut miner_address);
Dec 19 18:05:11.576 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:21:5
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 21 |     io::stdout().flush();
Dec 19 18:05:11.576 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:22:5
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 19 18:05:11.576 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:38:9
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 38 |         io::stdout().flush();
Dec 19 18:05:11.576 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:40:9
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 40 |         io::stdin().read_line(&mut choice);
Dec 19 18:05:11.576 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:71:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 71 |                 io::stdout().flush();
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:72:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 72 |                 io::stdin().read_line(&mut from);
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:74:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 74 |                 io::stdout().flush();
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:75:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 75 |                 io::stdin().read_line(&mut to);
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:77:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 77 |                 io::stdout().flush();
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.576 INFO [stderr]   --> src/main.rs:78:17
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr] 78 |                 io::stdin().read_line(&mut amount);
Dec 19 18:05:11.576 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.576 INFO [stderr]    |
Dec 19 18:05:11.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.576 INFO [stderr] 
Dec 19 18:05:11.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.577 INFO [stderr]    --> src/main.rs:106:17
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr] 106 |                 io::stdout().flush();
Dec 19 18:05:11.577 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.577 INFO [stderr] 
Dec 19 18:05:11.577 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.577 INFO [stderr]    --> src/main.rs:107:17
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr] 107 |                 io::stdin().read_line(&mut new_diff);
Dec 19 18:05:11.577 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.577 INFO [stderr] 
Dec 19 18:05:11.577 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.577 INFO [stderr]    --> src/main.rs:119:17
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr] 119 |                 io::stdout().flush();
Dec 19 18:05:11.577 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.577 INFO [stderr] 
Dec 19 18:05:11.577 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:05:11.577 INFO [stderr]    --> src/main.rs:120:17
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr] 120 |                 io::stdin().read_line(&mut new_reward);
Dec 19 18:05:11.577 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:05:11.577 INFO [stderr]     |
Dec 19 18:05:11.577 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:05:11.577 INFO [stderr] 
Dec 19 18:05:11.594 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 19 18:05:12.047 INFO running `"docker" "inspect" "a30d2505217db6f3a750559ec03ee91c42bee71c7574e74e1e05169fac3bf516"`
Dec 19 18:05:12.218 INFO running `"docker" "rm" "-f" "a30d2505217db6f3a750559ec03ee91c42bee71c7574e74e1e05169fac3bf516"`
Dec 19 18:05:12.408 INFO [stdout] a30d2505217db6f3a750559ec03ee91c42bee71c7574e74e1e05169fac3bf516