Oct 27 06:46:02.524 INFO checking christiansakai/toy_blockchain_rust against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2 Oct 27 06:46:02.524 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-6/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 06:46:02.883 INFO blam! 6d228f26d4d6284aa159d331aa82800d768b7ec69c8cfbfb064b17df72928ccb Oct 27 06:46:02.886 INFO running `"docker" "start" "-a" "6d228f26d4d6284aa159d331aa82800d768b7ec69c8cfbfb064b17df72928ccb"` Oct 27 06:46:04.155 INFO kablam! usermod: no changes Oct 27 06:46:04.271 INFO kablam! Checking toy_blockchain v0.1.0 (/source) Oct 27 06:46:05.891 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.891 INFO kablam! --> src/main.rs:16:5 Oct 27 06:46:05.891 INFO kablam! | Oct 27 06:46:05.891 INFO kablam! 16 | io::stdout().flush(); Oct 27 06:46:05.891 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.891 INFO kablam! | Oct 27 06:46:05.891 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 27 06:46:05.891 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.891 INFO kablam! Oct 27 06:46:05.891 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.891 INFO kablam! --> src/main.rs:17:5 Oct 27 06:46:05.891 INFO kablam! | Oct 27 06:46:05.891 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Oct 27 06:46:05.891 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.891 INFO kablam! | Oct 27 06:46:05.891 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.891 INFO kablam! Oct 27 06:46:05.891 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.891 INFO kablam! --> src/main.rs:19:5 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 19 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:20:5 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:38:9 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 38 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:41:9 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 41 | io::stdin().read_line(&mut choice); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:57:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 57 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:58:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 58 | io::stdin().read_line(&mut sender); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:60:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 60 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:61:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:63:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 63 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:64:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 64 | io::stdin().read_line(&mut amount); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.892 INFO kablam! --> src/main.rs:90:17 Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! 90 | io::stdout().flush(); Oct 27 06:46:05.892 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.892 INFO kablam! | Oct 27 06:46:05.892 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.892 INFO kablam! Oct 27 06:46:05.892 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.893 INFO kablam! --> src/main.rs:91:17 Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Oct 27 06:46:05.893 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.893 INFO kablam! Oct 27 06:46:05.893 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.893 INFO kablam! --> src/main.rs:105:17 Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! 105 | io::stdout().flush(); Oct 27 06:46:05.893 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.893 INFO kablam! Oct 27 06:46:05.893 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:05.893 INFO kablam! --> src/main.rs:106:17 Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Oct 27 06:46:05.893 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:05.893 INFO kablam! | Oct 27 06:46:05.893 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:05.893 INFO kablam! Oct 27 06:46:06.188 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.188 INFO kablam! --> src/main.rs:16:5 Oct 27 06:46:06.188 INFO kablam! | Oct 27 06:46:06.188 INFO kablam! 16 | io::stdout().flush(); Oct 27 06:46:06.188 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.188 INFO kablam! | Oct 27 06:46:06.188 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:17:5 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 17 | io::stdin().read_line(&mut miner_address); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:19:5 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 19 | io::stdout().flush(); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:20:5 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 20 | io::stdin().read_line(&mut difficulty); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:38:9 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 38 | io::stdout().flush(); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:41:9 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 41 | io::stdin().read_line(&mut choice); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:57:17 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 57 | io::stdout().flush(); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:58:17 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 58 | io::stdin().read_line(&mut sender); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:60:17 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 60 | io::stdout().flush(); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:61:17 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 61 | io::stdin().read_line(&mut receiver); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.189 INFO kablam! Oct 27 06:46:06.189 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.189 INFO kablam! --> src/main.rs:63:17 Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.189 INFO kablam! 63 | io::stdout().flush(); Oct 27 06:46:06.189 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.189 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.190 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.190 INFO kablam! --> src/main.rs:64:17 Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! 64 | io::stdin().read_line(&mut amount); Oct 27 06:46:06.190 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.190 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.190 INFO kablam! --> src/main.rs:90:17 Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! 90 | io::stdout().flush(); Oct 27 06:46:06.190 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.190 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.190 INFO kablam! --> src/main.rs:91:17 Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! 91 | io::stdin().read_line(&mut new_difficulty); Oct 27 06:46:06.190 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.190 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.190 INFO kablam! --> src/main.rs:105:17 Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! 105 | io::stdout().flush(); Oct 27 06:46:06.190 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.190 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 06:46:06.190 INFO kablam! --> src/main.rs:106:17 Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! 106 | io::stdin().read_line(&mut new_reward); Oct 27 06:46:06.190 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 06:46:06.190 INFO kablam! | Oct 27 06:46:06.190 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 06:46:06.190 INFO kablam! Oct 27 06:46:06.235 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 2.05s Oct 27 06:46:06.251 INFO kablam! su: No module specific data is present Oct 27 06:46:06.903 INFO running `"docker" "rm" "-f" "6d228f26d4d6284aa159d331aa82800d768b7ec69c8cfbfb064b17df72928ccb"` Oct 27 06:46:07.167 INFO blam! 6d228f26d4d6284aa159d331aa82800d768b7ec69c8cfbfb064b17df72928ccb