Oct 21 18:55:19.178 INFO checking christiansakai/toy_blockchain_rust against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192 Oct 21 18:55:19.178 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-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"` Oct 21 18:55:19.568 INFO blam! 1df2cefeb4b496184edd5c244c8710596043d96b67c511a2bc06e8d6cd6f9a8d Oct 21 18:55:19.574 INFO running `"docker" "start" "-a" "1df2cefeb4b496184edd5c244c8710596043d96b67c511a2bc06e8d6cd6f9a8d"` Oct 21 18:55:20.796 INFO kablam! usermod: no changes Oct 21 18:55:20.897 INFO kablam! Checking toy_blockchain v0.1.0 (/source) Oct 21 18:55:22.328 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.329 INFO kablam! --> src/main.rs:16:5 Oct 21 18:55:22.329 INFO kablam! | Oct 21 18:55:22.329 INFO kablam! 16 | io::stdout().flush(); Oct 21 18:55:22.329 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.330 INFO kablam! | Oct 21 18:55:22.330 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 21 18:55:22.330 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.330 INFO kablam! Oct 21 18:55:22.330 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.331 INFO kablam! --> src/main.rs:17:5 Oct 21 18:55:22.331 INFO kablam! | Oct 21 18:55:22.331 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Oct 21 18:55:22.331 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.331 INFO kablam! | Oct 21 18:55:22.332 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.332 INFO kablam! Oct 21 18:55:22.332 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.332 INFO kablam! --> src/main.rs:19:5 Oct 21 18:55:22.332 INFO kablam! | Oct 21 18:55:22.333 INFO kablam! 19 | io::stdout().flush(); Oct 21 18:55:22.333 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.333 INFO kablam! | Oct 21 18:55:22.333 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.333 INFO kablam! Oct 21 18:55:22.334 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.334 INFO kablam! --> src/main.rs:20:5 Oct 21 18:55:22.334 INFO kablam! | Oct 21 18:55:22.334 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Oct 21 18:55:22.334 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.335 INFO kablam! | Oct 21 18:55:22.335 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.335 INFO kablam! Oct 21 18:55:22.335 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.335 INFO kablam! --> src/main.rs:38:9 Oct 21 18:55:22.335 INFO kablam! | Oct 21 18:55:22.336 INFO kablam! 38 | io::stdout().flush(); Oct 21 18:55:22.336 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.336 INFO kablam! | Oct 21 18:55:22.336 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.336 INFO kablam! Oct 21 18:55:22.337 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.337 INFO kablam! --> src/main.rs:41:9 Oct 21 18:55:22.337 INFO kablam! | Oct 21 18:55:22.337 INFO kablam! 41 | io::stdin().read_line(&mut choice); Oct 21 18:55:22.337 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.338 INFO kablam! | Oct 21 18:55:22.338 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.338 INFO kablam! Oct 21 18:55:22.338 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.338 INFO kablam! --> src/main.rs:57:17 Oct 21 18:55:22.339 INFO kablam! | Oct 21 18:55:22.339 INFO kablam! 57 | io::stdout().flush(); Oct 21 18:55:22.339 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.339 INFO kablam! | Oct 21 18:55:22.340 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.340 INFO kablam! Oct 21 18:55:22.340 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.340 INFO kablam! --> src/main.rs:58:17 Oct 21 18:55:22.340 INFO kablam! | Oct 21 18:55:22.341 INFO kablam! 58 | io::stdin().read_line(&mut sender); Oct 21 18:55:22.341 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.341 INFO kablam! | Oct 21 18:55:22.341 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.342 INFO kablam! Oct 21 18:55:22.342 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.342 INFO kablam! --> src/main.rs:60:17 Oct 21 18:55:22.342 INFO kablam! | Oct 21 18:55:22.342 INFO kablam! 60 | io::stdout().flush(); Oct 21 18:55:22.343 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.343 INFO kablam! | Oct 21 18:55:22.343 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.343 INFO kablam! Oct 21 18:55:22.343 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.343 INFO kablam! --> src/main.rs:61:17 Oct 21 18:55:22.344 INFO kablam! | Oct 21 18:55:22.344 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Oct 21 18:55:22.344 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.344 INFO kablam! | Oct 21 18:55:22.344 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.345 INFO kablam! Oct 21 18:55:22.345 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.345 INFO kablam! --> src/main.rs:63:17 Oct 21 18:55:22.345 INFO kablam! | Oct 21 18:55:22.345 INFO kablam! 63 | io::stdout().flush(); Oct 21 18:55:22.345 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.346 INFO kablam! | Oct 21 18:55:22.346 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.346 INFO kablam! Oct 21 18:55:22.346 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.346 INFO kablam! --> src/main.rs:64:17 Oct 21 18:55:22.347 INFO kablam! | Oct 21 18:55:22.347 INFO kablam! 64 | io::stdin().read_line(&mut amount); Oct 21 18:55:22.347 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.347 INFO kablam! | Oct 21 18:55:22.347 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.348 INFO kablam! Oct 21 18:55:22.348 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.348 INFO kablam! --> src/main.rs:90:17 Oct 21 18:55:22.348 INFO kablam! | Oct 21 18:55:22.348 INFO kablam! 90 | io::stdout().flush(); Oct 21 18:55:22.349 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.349 INFO kablam! | Oct 21 18:55:22.349 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.349 INFO kablam! Oct 21 18:55:22.349 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.350 INFO kablam! --> src/main.rs:91:17 Oct 21 18:55:22.350 INFO kablam! | Oct 21 18:55:22.350 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Oct 21 18:55:22.351 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.351 INFO kablam! | Oct 21 18:55:22.351 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.352 INFO kablam! Oct 21 18:55:22.352 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.352 INFO kablam! --> src/main.rs:105:17 Oct 21 18:55:22.353 INFO kablam! | Oct 21 18:55:22.353 INFO kablam! 105 | io::stdout().flush(); Oct 21 18:55:22.353 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.353 INFO kablam! | Oct 21 18:55:22.354 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.354 INFO kablam! Oct 21 18:55:22.354 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.355 INFO kablam! --> src/main.rs:106:17 Oct 21 18:55:22.355 INFO kablam! | Oct 21 18:55:22.355 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Oct 21 18:55:22.356 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.356 INFO kablam! | Oct 21 18:55:22.356 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.356 INFO kablam! Oct 21 18:55:22.404 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.405 INFO kablam! --> src/main.rs:16:5 Oct 21 18:55:22.405 INFO kablam! | Oct 21 18:55:22.406 INFO kablam! 16 | io::stdout().flush(); Oct 21 18:55:22.406 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.406 INFO kablam! | Oct 21 18:55:22.407 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 21 18:55:22.407 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.407 INFO kablam! Oct 21 18:55:22.408 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.408 INFO kablam! --> src/main.rs:17:5 Oct 21 18:55:22.408 INFO kablam! | Oct 21 18:55:22.408 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Oct 21 18:55:22.409 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.409 INFO kablam! | Oct 21 18:55:22.409 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.410 INFO kablam! Oct 21 18:55:22.410 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.410 INFO kablam! --> src/main.rs:19:5 Oct 21 18:55:22.410 INFO kablam! | Oct 21 18:55:22.411 INFO kablam! 19 | io::stdout().flush(); Oct 21 18:55:22.411 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.411 INFO kablam! | Oct 21 18:55:22.411 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.412 INFO kablam! Oct 21 18:55:22.412 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.412 INFO kablam! --> src/main.rs:20:5 Oct 21 18:55:22.412 INFO kablam! | Oct 21 18:55:22.413 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Oct 21 18:55:22.413 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.413 INFO kablam! | Oct 21 18:55:22.413 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.414 INFO kablam! Oct 21 18:55:22.414 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.414 INFO kablam! --> src/main.rs:38:9 Oct 21 18:55:22.415 INFO kablam! | Oct 21 18:55:22.415 INFO kablam! 38 | io::stdout().flush(); Oct 21 18:55:22.415 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.416 INFO kablam! | Oct 21 18:55:22.416 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.416 INFO kablam! Oct 21 18:55:22.416 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.417 INFO kablam! --> src/main.rs:41:9 Oct 21 18:55:22.417 INFO kablam! | Oct 21 18:55:22.417 INFO kablam! 41 | io::stdin().read_line(&mut choice); Oct 21 18:55:22.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.418 INFO kablam! Oct 21 18:55:22.418 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.418 INFO kablam! --> src/main.rs:57:17 Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! 57 | io::stdout().flush(); Oct 21 18:55:22.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.418 INFO kablam! Oct 21 18:55:22.418 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.418 INFO kablam! --> src/main.rs:58:17 Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! 58 | io::stdin().read_line(&mut sender); Oct 21 18:55:22.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.418 INFO kablam! Oct 21 18:55:22.418 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.418 INFO kablam! --> src/main.rs:60:17 Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! 60 | io::stdout().flush(); Oct 21 18:55:22.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.418 INFO kablam! Oct 21 18:55:22.418 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.418 INFO kablam! --> src/main.rs:61:17 Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Oct 21 18:55:22.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.418 INFO kablam! | Oct 21 18:55:22.418 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.418 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:63:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 63 | io::stdout().flush(); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:64:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 64 | io::stdin().read_line(&mut amount); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:90:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 90 | io::stdout().flush(); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:91:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:105:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 105 | io::stdout().flush(); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.419 INFO kablam! warning: unused `std::result::Result` that must be used Oct 21 18:55:22.419 INFO kablam! --> src/main.rs:106:17 Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Oct 21 18:55:22.419 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 21 18:55:22.419 INFO kablam! | Oct 21 18:55:22.419 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 21 18:55:22.419 INFO kablam! Oct 21 18:55:22.428 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 1.61s Oct 21 18:55:22.456 INFO kablam! su: No module specific data is present Oct 21 18:55:23.026 INFO running `"docker" "rm" "-f" "1df2cefeb4b496184edd5c244c8710596043d96b67c511a2bc06e8d6cd6f9a8d"` Oct 21 18:55:23.334 INFO blam! 1df2cefeb4b496184edd5c244c8710596043d96b67c511a2bc06e8d6cd6f9a8d