test: migrate error to snapbox

tests/testsuite/error.rs

@@ -1,21 +1,20 @@
 //! General error tests that don't belong anywhere else.
 
-#![allow(deprecated)]
-
 use cargo_test_support::cargo_process;
 
 #[cargo_test]
 fn internal_error() {
     cargo_process("init")
         .env("__CARGO_TEST_INTERNAL_ERROR", "1")
         .with_status(101)
-        .with_stderr(
+        .with_stderr_data(format!(
             "\
 [ERROR] internal error test
 [NOTE] this is an unexpected cargo internal error
 [NOTE] we would appreciate a bug report: https://github.com/rust-lang/cargo/issues/
-[NOTE] cargo [..]
+[NOTE] cargo {}
 ",
-        )
+            cargo::version()
+        ))
         .run();
 }