Nov 04 08:50:09.232 INFO checking christiansakai/toy_blockchain_rust against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655 Nov 04 08:50:09.232 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-5/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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 04 08:50:09.628 INFO blam! 1cbc37a9c177be254d0431bf23e9b21b649f46da61e48c1e6baa6cb8e80c2fa7 Nov 04 08:50:09.639 INFO running `"docker" "start" "-a" "1cbc37a9c177be254d0431bf23e9b21b649f46da61e48c1e6baa6cb8e80c2fa7"` Nov 04 08:50:11.095 INFO kablam! usermod: no changes Nov 04 08:50:11.199 INFO kablam! Compiling serde_derive v1.0.75 Nov 04 08:50:27.911 INFO kablam! Checking toy_blockchain v0.1.0 (/source) Nov 04 08:50:29.607 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.607 INFO kablam! --> src/main.rs:16:5 Nov 04 08:50:29.607 INFO kablam! | Nov 04 08:50:29.607 INFO kablam! 16 | io::stdout().flush(); Nov 04 08:50:29.608 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.608 INFO kablam! | Nov 04 08:50:29.609 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 04 08:50:29.609 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.610 INFO kablam! Nov 04 08:50:29.611 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.611 INFO kablam! --> src/main.rs:17:5 Nov 04 08:50:29.612 INFO kablam! | Nov 04 08:50:29.612 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Nov 04 08:50:29.613 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.613 INFO kablam! | Nov 04 08:50:29.614 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.615 INFO kablam! Nov 04 08:50:29.615 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.616 INFO kablam! --> src/main.rs:19:5 Nov 04 08:50:29.616 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! 19 | io::stdout().flush(); Nov 04 08:50:29.617 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.617 INFO kablam! Nov 04 08:50:29.617 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.617 INFO kablam! --> src/main.rs:20:5 Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Nov 04 08:50:29.617 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.617 INFO kablam! Nov 04 08:50:29.617 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.617 INFO kablam! --> src/main.rs:38:9 Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! 38 | io::stdout().flush(); Nov 04 08:50:29.617 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.617 INFO kablam! Nov 04 08:50:29.617 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.617 INFO kablam! --> src/main.rs:41:9 Nov 04 08:50:29.617 INFO kablam! | Nov 04 08:50:29.617 INFO kablam! 41 | io::stdin().read_line(&mut choice); Nov 04 08:50:29.617 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.618 INFO kablam! | Nov 04 08:50:29.618 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.618 INFO kablam! Nov 04 08:50:29.623 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.623 INFO kablam! --> src/main.rs:57:17 Nov 04 08:50:29.623 INFO kablam! | Nov 04 08:50:29.623 INFO kablam! 57 | io::stdout().flush(); Nov 04 08:50:29.623 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.623 INFO kablam! | Nov 04 08:50:29.623 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.623 INFO kablam! Nov 04 08:50:29.623 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.623 INFO kablam! --> src/main.rs:58:17 Nov 04 08:50:29.623 INFO kablam! | Nov 04 08:50:29.623 INFO kablam! 58 | io::stdin().read_line(&mut sender); Nov 04 08:50:29.623 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.623 INFO kablam! | Nov 04 08:50:29.623 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.623 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:60:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 60 | io::stdout().flush(); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:61:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:63:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 63 | io::stdout().flush(); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:64:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 64 | io::stdin().read_line(&mut amount); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:90:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 90 | io::stdout().flush(); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:91:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:105:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 105 | io::stdout().flush(); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.624 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.624 INFO kablam! --> src/main.rs:106:17 Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Nov 04 08:50:29.624 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.624 INFO kablam! | Nov 04 08:50:29.624 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.624 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:16:5 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 16 | io::stdout().flush(); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:17:5 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:19:5 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 19 | io::stdout().flush(); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:20:5 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:38:9 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 38 | io::stdout().flush(); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.721 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.721 INFO kablam! --> src/main.rs:41:9 Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! 41 | io::stdin().read_line(&mut choice); Nov 04 08:50:29.721 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.721 INFO kablam! | Nov 04 08:50:29.721 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.721 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:57:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! 57 | io::stdout().flush(); Nov 04 08:50:29.735 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.735 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:58:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! 58 | io::stdin().read_line(&mut sender); Nov 04 08:50:29.735 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.735 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:60:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! 60 | io::stdout().flush(); Nov 04 08:50:29.735 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.735 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:61:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Nov 04 08:50:29.735 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.735 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:63:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! 63 | io::stdout().flush(); Nov 04 08:50:29.735 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.735 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.735 INFO kablam! Nov 04 08:50:29.735 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.735 INFO kablam! --> src/main.rs:64:17 Nov 04 08:50:29.735 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! 64 | io::stdin().read_line(&mut amount); Nov 04 08:50:29.736 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.736 INFO kablam! Nov 04 08:50:29.736 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.736 INFO kablam! --> src/main.rs:90:17 Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! 90 | io::stdout().flush(); Nov 04 08:50:29.736 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.736 INFO kablam! Nov 04 08:50:29.736 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.736 INFO kablam! --> src/main.rs:91:17 Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Nov 04 08:50:29.736 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.736 INFO kablam! Nov 04 08:50:29.736 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.736 INFO kablam! --> src/main.rs:105:17 Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! 105 | io::stdout().flush(); Nov 04 08:50:29.736 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.736 INFO kablam! Nov 04 08:50:29.736 INFO kablam! warning: unused `std::result::Result` that must be used Nov 04 08:50:29.736 INFO kablam! --> src/main.rs:106:17 Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Nov 04 08:50:29.736 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 04 08:50:29.736 INFO kablam! | Nov 04 08:50:29.736 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 04 08:50:29.736 INFO kablam! Nov 04 08:50:29.759 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 18.65s Nov 04 08:50:29.763 INFO kablam! su: No module specific data is present Nov 04 08:50:30.784 INFO running `"docker" "rm" "-f" "1cbc37a9c177be254d0431bf23e9b21b649f46da61e48c1e6baa6cb8e80c2fa7"` Nov 04 08:50:31.024 INFO blam! 1cbc37a9c177be254d0431bf23e9b21b649f46da61e48c1e6baa6cb8e80c2fa7