Add `src/tools/x` to the main workspace

The original reason to exclude it was so it could run before submodules
were initialized. However, those have all been converted to subtrees
now, so the entire workspace is always ready to go.

4 files changed, 5 insertions, 13 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 942f8f43935..6d252ca8c82 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6439,6 +6439,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
 
 [[package]]
+name = "x"
+version = "0.1.1"
+
+[[package]]
 name = "xattr"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index 915ec2e00ca..21f0e84c4f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,6 +45,7 @@ members = [
   "src/tools/coverage-dump",
   "src/tools/wasm-component-ld",
   "src/tools/features-status-dump",
+  "src/tools/x",
 ]
 
 exclude = [
@@ -55,11 +56,6 @@ exclude = [
   "tests/rustdoc-gui",
   # HACK(eddyb) This hardcodes the fact that our CI uses `/checkout/obj`.
   "obj",
-  # The `x` binary is a thin wrapper that calls `x.py`, which initializes
-  # submodules, before which workspace members cannot be invoked because
-  # not all `Cargo.toml` files are available, so we exclude the `x` binary,
-  # so it can be invoked before the current checkout is set up.
-  "src/tools/x",
 ]
 
 [profile.release.package.rustc-rayon-core]
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index 569d3c67b04..81c55ecaa7a 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -81,7 +81,6 @@ pub(crate) const WORKSPACES: &[(&str, ExceptionList, Option<(&[&str], &[&str])>,
     ("src/tools/rust-analyzer", EXCEPTIONS_RUST_ANALYZER, None, &[]),
     ("src/tools/rustbook", EXCEPTIONS_RUSTBOOK, None, &["src/doc/book", "src/doc/reference"]),
     ("src/tools/rustc-perf", EXCEPTIONS_RUSTC_PERF, None, &["src/tools/rustc-perf"]),
-    ("src/tools/x", &[], None, &[]),
     // tidy-alphabetical-end
 ];
 
diff --git a/src/tools/x/Cargo.lock b/src/tools/x/Cargo.lock
deleted file mode 100644
index 09e5c750749..00000000000
--- a/src/tools/x/Cargo.lock
+++ /dev/null
@@ -1,7 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "x"
-version = "0.1.1"