patch.patch

diff --git a/Cargo.lock b/Cargo.lock
index 5511d301775..f6a5fb14d53 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5607,6 +5607,7 @@ dependencies = [
  "lazy_static",
  "miropt-test-tools",
  "regex",
+ "semver",
  "termcolor",
  "walkdir",
 ]
diff --git a/src/tools/tidy/Cargo.toml b/src/tools/tidy/Cargo.toml
index 19812fc6f55..4dc830b9ad8 100644
--- a/src/tools/tidy/Cargo.toml
+++ b/src/tools/tidy/Cargo.toml
@@ -13,6 +13,7 @@ lazy_static = "1"
 walkdir = "2"
 ignore = "0.4.18"
 termcolor = "1.1.3"
+semver = "1.0"

 [[bin]]
 name = "rust-tidy"
diff --git a/src/tools/tidy/src/lib.rs b/src/tools/tidy/src/lib.rs
index 97e56720b98..35000320d1a 100644
--- a/src/tools/tidy/src/lib.rs
+++ b/src/tools/tidy/src/lib.rs
@@ -70,3 +70,4 @@ fn tidy_error(bad: &mut bool, args: impl Display) -> std::io::Result<()> {
 pub mod unit_tests;
 pub mod unstable_book;
 pub mod walk;
+pub mod x_version;
diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs
index 0b9a1b37e94..8a256a6efda 100644
--- a/src/tools/tidy/src/main.rs
+++ b/src/tools/tidy/src/main.rs
@@ -69,6 +69,7 @@ macro_rules! check {
             }
         }

+        check!(x_version, &root_path, &cargo);
         check!(target_specific_tests, &tests_path);

         // Checks that are done on the cargo workspace.