warning: failed to automatically apply fixes suggested by rustc to crate `ca_p1` after fixes were automatically applied the compiler reported errors within these files: * src/main.rs This likely indicates a bug in either rustc or cargo itself, and we would appreciate a bug report! You're likely to see a number of compiler warnings after this message which cargo attempted to fix but failed. If you could open an issue at https://github.com/rust-lang/rust/issues quoting the full output of this command we'd be very appreciative! Note that you may be able to make some more progress in the near-term fixing code with the `--broken-code` flag The following errors were reported: error: invalid reference to positional argument 1 (there is 1 argument) --> src/main.rs:5:38 | 5 | "\nI doing programming from {1} years and i like it", 20 | ^ | = note: positional arguments are zero-based error: argument never used --> src/main.rs:5:63 | 5 | "\nI doing programming from {1} years and i like it", 20 | ---------------------------------------------------- ^^ argument never used | | | formatting specifier missing error: aborting due to 2 previous errors Original diagnostics will follow. warning: literal with an empty format string --> src/main.rs:6:21 | 6 | "like", 20, "programming" | ^^^^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal = note: `#[warn(clippy::print_literal)]` on by default help: try this | 5 ~ "\nI doing programming from {1} years and i {0} it", 6 ~ "like", 20 | warning: literal with an empty format string --> src/main.rs:6:9 | 6 | "like", 20, "programming" | ^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal help: try this | 5 - "\nI doing {2} from {1} years and i {0} it", 5 + "\nI doing {2} from {1} years and i like it", 20, "programming" | warning: `ca_p1` (bin "ca_p1") generated 2 warnings warning: `ca_p1` (bin "ca_p1" test) generated 2 warnings (2 duplicates) 

rustc 1.66.0 (69f9c33d7 2022-12-12) binary: rustc commit-hash: 69f9c33d71c871fc16ac445211281c6e7a340943 commit-date: 2022-12-12 host: x86_64-apple-darwin release: 1.66.0 LLVM version: 15.0.2