bump 'toml' dependency

Author: danieleades

Cargo.lock

@@ -33,7 +33,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 shlex = "1"
 tempfile = "3.0"
-toml = "0.5.1"
+toml = "0.7.2"
 topological-sort = "0.2.2"
 
 # Watch feature

Cargo.toml

@@ -98,7 +98,9 @@ impl BookBuilder {
     fn write_book_toml(&self) -> Result<()> {
         debug!("Writing book.toml");
         let book_toml = self.root.join("book.toml");
-        let cfg = toml::to_vec(&self.config).with_context(|| "Unable to serialize the config")?;
+        let cfg = toml::to_string(&self.config)
+            .with_context(|| "Unable to serialize the config")?
+            .into_bytes();
 
         File::create(book_toml)
             .with_context(|| "Couldn't create book.toml")?