Update format to Rust version 1.39

vm/src/obj/objstr.rs

@@ -1389,7 +1389,9 @@ fn try_update_quantity_from_tuple(
                         Ok(tuple_index)
                     }
                 }
-                None => Err(vm.new_type_error("not enough arguments for format string".to_string())),
+                None => {
+                    Err(vm.new_type_error("not enough arguments for format string".to_string()))
+                }
             }
         }
         _ => Ok(tuple_index),

vm/src/stdlib/ast.rs

@@ -625,8 +625,12 @@ fn comprehension_to_ast(
 
 fn string_to_ast(vm: &VirtualMachine, string: &ast::StringGroup) -> PyResult<AstNodeRef> {
     let string = match string {
-        ast::StringGroup::Constant { value } => node!(vm, Str, { s => vm.ctx.new_str(value.clone()) }),
-        ast::StringGroup::FormattedValue { value, .. } => node!(vm, FormattedValue, { value => expression_to_ast(vm, value)? }),
+        ast::StringGroup::Constant { value } => {
+            node!(vm, Str, { s => vm.ctx.new_str(value.clone()) })
+        }
+        ast::StringGroup::FormattedValue { value, .. } => {
+            node!(vm, FormattedValue, { value => expression_to_ast(vm, value)? })
+        }
         ast::StringGroup::Joined { values } => {
             let py_values = map_ast(string_to_ast, vm, &values)?;
             node!(vm, JoinedStr, { values => py_values })

vm/src/stdlib/unicodedata.rs

@@ -54,7 +54,9 @@ fn name(
     } else {
         match default {
             OptionalArg::Present(obj) => Ok(obj),
-            OptionalArg::Missing => Err(vm.new_value_error("character name not found!".to_string())),
+            OptionalArg::Missing => {
+                Err(vm.new_value_error("character name not found!".to_string()))
+            }
         }
     }
 }