Dec 11 17:14:24.616 INFO checking iThinkyouknow/rust-blockchain against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677 Dec 11 17:14:24.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"` Dec 11 17:14:25.016 INFO [stdout] 5f2bfc1dc8f2b282594f242a732d50fbb212cdde2c05f712b88eb1d17ebac931 Dec 11 17:14:25.022 INFO running `"docker" "start" "-a" "5f2bfc1dc8f2b282594f242a732d50fbb212cdde2c05f712b88eb1d17ebac931"` Dec 11 17:14:26.368 INFO [stderr] usermod: no changes Dec 11 17:14:26.479 INFO [stderr] Checking blockchain v0.1.0 (/source) Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:17:5 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 17 | io::stdout().flush(); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:18:5 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 18 | io::stdin().read_line(&mut miner_addr); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:21:5 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 21 | io::stdout().flush(); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:22:5 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 22 | io::stdin().read_line(&mut difficulty); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:39:9 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 39 | io::stdout().flush(); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:41:9 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 41 | io::stdin().read_line(&mut choice); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:55:17 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 55 | io::stdout().flush(); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.785 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.785 INFO [stderr] --> src/main.rs:56:17 Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] 56 | io::stdin().read_line(&mut sender); Dec 11 17:14:27.785 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.785 INFO [stderr] | Dec 11 17:14:27.785 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.785 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:58:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 58 | io::stdout().flush(); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:59:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 59 | io::stdin().read_line(&mut receiver); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:62:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 62 | io::stdout().flush(); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:63:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 63 | io::stdin().read_line(&mut amount); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:87:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 87 | io::stdout().flush(); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:88:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 88 | io::stdin().read_line(&mut new_diff); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:98:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 98 | io::stdout().flush(); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.786 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.786 INFO [stderr] --> src/main.rs:99:17 Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] 99 | io::stdin().read_line(&mut new_reward); Dec 11 17:14:27.786 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.786 INFO [stderr] | Dec 11 17:14:27.786 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.786 INFO [stderr] Dec 11 17:14:27.832 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.832 INFO [stderr] --> src/main.rs:17:5 Dec 11 17:14:27.832 INFO [stderr] | Dec 11 17:14:27.832 INFO [stderr] 17 | io::stdout().flush(); Dec 11 17:14:27.832 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.832 INFO [stderr] | Dec 11 17:14:27.832 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 11 17:14:27.832 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.832 INFO [stderr] Dec 11 17:14:27.832 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.832 INFO [stderr] --> src/main.rs:18:5 Dec 11 17:14:27.832 INFO [stderr] | Dec 11 17:14:27.832 INFO [stderr] 18 | io::stdin().read_line(&mut miner_addr); Dec 11 17:14:27.832 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.832 INFO [stderr] | Dec 11 17:14:27.832 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.832 INFO [stderr] Dec 11 17:14:27.832 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.832 INFO [stderr] --> src/main.rs:21:5 Dec 11 17:14:27.832 INFO [stderr] | Dec 11 17:14:27.833 INFO [stderr] 21 | io::stdout().flush(); Dec 11 17:14:27.833 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.833 INFO [stderr] | Dec 11 17:14:27.836 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.836 INFO [stderr] Dec 11 17:14:27.836 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:22:5 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 22 | io::stdin().read_line(&mut difficulty); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:39:9 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 39 | io::stdout().flush(); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:41:9 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 41 | io::stdin().read_line(&mut choice); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:55:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 55 | io::stdout().flush(); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:56:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 56 | io::stdin().read_line(&mut sender); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:58:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 58 | io::stdout().flush(); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:59:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 59 | io::stdin().read_line(&mut receiver); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:62:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 62 | io::stdout().flush(); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:63:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 63 | io::stdin().read_line(&mut amount); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:87:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 87 | io::stdout().flush(); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.837 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.837 INFO [stderr] --> src/main.rs:88:17 Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] 88 | io::stdin().read_line(&mut new_diff); Dec 11 17:14:27.837 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.837 INFO [stderr] | Dec 11 17:14:27.837 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.837 INFO [stderr] Dec 11 17:14:27.838 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.838 INFO [stderr] --> src/main.rs:98:17 Dec 11 17:14:27.838 INFO [stderr] | Dec 11 17:14:27.838 INFO [stderr] 98 | io::stdout().flush(); Dec 11 17:14:27.838 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.838 INFO [stderr] | Dec 11 17:14:27.838 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.838 INFO [stderr] Dec 11 17:14:27.838 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 11 17:14:27.838 INFO [stderr] --> src/main.rs:99:17 Dec 11 17:14:27.838 INFO [stderr] | Dec 11 17:14:27.838 INFO [stderr] 99 | io::stdin().read_line(&mut new_reward); Dec 11 17:14:27.838 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 11 17:14:27.838 INFO [stderr] | Dec 11 17:14:27.838 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 11 17:14:27.838 INFO [stderr] Dec 11 17:14:27.849 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.45s Dec 11 17:14:27.853 INFO [stderr] su: No module specific data is present Dec 11 17:14:28.708 INFO running `"docker" "inspect" "5f2bfc1dc8f2b282594f242a732d50fbb212cdde2c05f712b88eb1d17ebac931"` Dec 11 17:14:29.096 INFO running `"docker" "rm" "-f" "5f2bfc1dc8f2b282594f242a732d50fbb212cdde2c05f712b88eb1d17ebac931"` Dec 11 17:14:29.372 INFO [stdout] 5f2bfc1dc8f2b282594f242a732d50fbb212cdde2c05f712b88eb1d17ebac931