Add anyhow

Cargo.lock

@@ -59,6 +59,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0952808a6c2afd1aa8947271f3a60f1a6763c7b912d210184c5149b5cf147247"
+
 [[package]]
 name = "assert_cmd"
 version = "2.0.14"
@@ -525,6 +531,7 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 name = "rustlings"
 version = "5.6.1"
 dependencies = [
+ "anyhow",
  "assert_cmd",
  "clap",
  "console",

Cargo.toml

@@ -9,6 +9,7 @@ authors = [
 edition = "2021"
 
 [dependencies]
+anyhow = "1.0.81"
 clap = { version = "4.5.2", features = ["derive"] }
 console = "0.15.8"
 glob = "0.3.0"

src/main.rs

@@ -2,6 +2,7 @@ use crate::exercise::{Exercise, ExerciseList};
 use crate::project::RustAnalyzerProject;
 use crate::run::{reset, run};
 use crate::verify::verify;
+use anyhow::Result;
 use clap::{Parser, Subcommand};
 use console::Emoji;
 use notify_debouncer_mini::notify::{self, RecursiveMode};
@@ -84,7 +85,7 @@ enum Subcommands {
     Lsp,
 }
 
-fn main() {
+fn main() -> Result<()> {
     let args = Args::parse();
 
     if args.command.is_none() {
@@ -243,6 +244,8 @@ fn main() {
             }
         },
     }
+
+    Ok(())
 }
 
 fn spawn_watch_shell(