Nov 01 07:04:14.628 INFO checking christiansakai/toy_blockchain_rust against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538 Nov 01 07:04:14.629 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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"` Nov 01 07:04:15.102 INFO blam! ca1ce1948e2c9f2f393834c596f00e67e57686708d98307f67f73fa1f6d6dd70 Nov 01 07:04:15.104 INFO running `"docker" "start" "-a" "ca1ce1948e2c9f2f393834c596f00e67e57686708d98307f67f73fa1f6d6dd70"` Nov 01 07:04:16.264 INFO kablam! usermod: no changes Nov 01 07:04:16.426 INFO kablam! Compiling quote v0.6.8 Nov 01 07:04:18.827 INFO kablam! Compiling syn v0.14.9 Nov 01 07:04:30.748 INFO kablam! Compiling serde_derive v1.0.75 Nov 01 07:04:45.836 INFO kablam! Checking toy_blockchain v0.1.0 (/source) Nov 01 07:04:47.304 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.304 INFO kablam! --> src/main.rs:16:5 Nov 01 07:04:47.304 INFO kablam! | Nov 01 07:04:47.304 INFO kablam! 16 | io::stdout().flush(); Nov 01 07:04:47.304 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.304 INFO kablam! | Nov 01 07:04:47.304 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 07:04:47.305 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.305 INFO kablam! Nov 01 07:04:47.305 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.305 INFO kablam! --> src/main.rs:17:5 Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Nov 01 07:04:47.305 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.305 INFO kablam! Nov 01 07:04:47.305 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.305 INFO kablam! --> src/main.rs:19:5 Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! 19 | io::stdout().flush(); Nov 01 07:04:47.305 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.305 INFO kablam! Nov 01 07:04:47.305 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.305 INFO kablam! --> src/main.rs:20:5 Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Nov 01 07:04:47.305 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.305 INFO kablam! | Nov 01 07:04:47.305 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.305 INFO kablam! Nov 01 07:04:47.305 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.316 INFO kablam! --> src/main.rs:38:9 Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! 38 | io::stdout().flush(); Nov 01 07:04:47.316 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.316 INFO kablam! Nov 01 07:04:47.316 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.316 INFO kablam! --> src/main.rs:41:9 Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! 41 | io::stdin().read_line(&mut choice); Nov 01 07:04:47.316 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.316 INFO kablam! Nov 01 07:04:47.316 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.316 INFO kablam! --> src/main.rs:57:17 Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! 57 | io::stdout().flush(); Nov 01 07:04:47.316 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.316 INFO kablam! Nov 01 07:04:47.316 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.316 INFO kablam! --> src/main.rs:58:17 Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! 58 | io::stdin().read_line(&mut sender); Nov 01 07:04:47.316 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.316 INFO kablam! Nov 01 07:04:47.316 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.316 INFO kablam! --> src/main.rs:60:17 Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! 60 | io::stdout().flush(); Nov 01 07:04:47.316 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.316 INFO kablam! | Nov 01 07:04:47.316 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.316 INFO kablam! Nov 01 07:04:47.316 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:61:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:63:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 63 | io::stdout().flush(); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:64:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 64 | io::stdin().read_line(&mut amount); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:90:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 90 | io::stdout().flush(); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:91:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:105:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 105 | io::stdout().flush(); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.317 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.317 INFO kablam! --> src/main.rs:106:17 Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Nov 01 07:04:47.317 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.317 INFO kablam! | Nov 01 07:04:47.317 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.317 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:16:5 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 16 | io::stdout().flush(); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:17:5 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:19:5 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 19 | io::stdout().flush(); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:20:5 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:38:9 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 38 | io::stdout().flush(); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:41:9 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 41 | io::stdin().read_line(&mut choice); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:57:17 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 57 | io::stdout().flush(); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.621 INFO kablam! --> src/main.rs:58:17 Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! 58 | io::stdin().read_line(&mut sender); Nov 01 07:04:47.621 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.621 INFO kablam! | Nov 01 07:04:47.621 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.621 INFO kablam! Nov 01 07:04:47.621 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:60:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 60 | io::stdout().flush(); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:61:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:63:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 63 | io::stdout().flush(); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:64:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 64 | io::stdin().read_line(&mut amount); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:90:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 90 | io::stdout().flush(); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:91:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:105:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 105 | io::stdout().flush(); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.622 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 07:04:47.622 INFO kablam! --> src/main.rs:106:17 Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Nov 01 07:04:47.622 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 01 07:04:47.622 INFO kablam! | Nov 01 07:04:47.622 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 07:04:47.622 INFO kablam! Nov 01 07:04:47.644 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 31.33s Nov 01 07:04:47.646 INFO kablam! su: No module specific data is present Nov 01 07:04:48.543 INFO running `"docker" "rm" "-f" "ca1ce1948e2c9f2f393834c596f00e67e57686708d98307f67f73fa1f6d6dd70"` Nov 01 07:04:48.852 INFO blam! ca1ce1948e2c9f2f393834c596f00e67e57686708d98307f67f73fa1f6d6dd70