Fix formatting issues (#3615)

Author: UebelAndre

rust/private/providers.bzl

@@ -18,6 +18,10 @@ CrateInfo = provider(
     doc = "A provider containing general Crate information.",
     fields = {
         "aliases": "Dict[Label, String]: Renamed and aliased crates",
+        "cfgs": (
+            "List[str]: The set of enabled cfgs for this crate. Note that this field is populated only " +
+            "when @rules_rust//rust/settings:collect_cfgs is set."
+        ),
         "compile_data": "depset[File]: Compile data required by this crate.",
         "compile_data_targets": "depset[Label]: Compile data targets required by this crate.",
         "data": "depset[File]: Compile data required by crates that use the current crate as a proc-macro.",
@@ -46,10 +50,6 @@ CrateInfo = provider(
             "str, optional: The original crate type for targets generated using a previously defined " +
             "crate (typically tests using the `rust_test::crate` attribute)"
         ),
-        "cfgs": (
-            "List[str]: The set of enabled cfgs for this crate. Note that this field is populated only " +
-            "when @rules_rust//rust/settings:collect_cfgs is set."
-        ),
     },
 )
 

rust/private/rust.bzl

@@ -799,14 +799,14 @@ _common_attrs = {
         doc = "A version to inject in the cargo environment variable.",
         default = "0.0.0",
     ),
-    "_stamp_flag": attr.label(
-        doc = "A setting used to determine whether or not the `--stamp` flag is enabled",
-        default = Label("//rust/private:stamp"),
-    ),
     "_collect_cfgs": attr.label(
         doc = "Enable collection of cfg flags with results stored in CrateInfo.cfgs.",
         default = Label("//rust/settings:collect_cfgs"),
     ),
+    "_stamp_flag": attr.label(
+        doc = "A setting used to determine whether or not the `--stamp` flag is enabled",
+        default = Label("//rust/private:stamp"),
+    ),
 } | RUSTC_ATTRS | _rustc_allocator_libraries_attrs
 
 _coverage_attrs = {
@@ -1719,7 +1719,7 @@ def _replace_illlegal_chars(name):
 def _collect_cfgs(ctx, toolchain, crate_root, crate_type, crate_is_test):
     """Collect all cfg flags for a crate but only when @rules_rust//rust/settings:collect_cfgs is set.
 
-    Cfgs are gathered from the target's own attributes (e.g., rustc_flags, crate_featues, etc.), as
+    Cfgs are gathered from the target's own attributes (e.g., rustc_flags, crate_features, etc.), as
     well as from the toolchain (e.g., toolchain.extra_rustc_flags).
 
     Args:

test/unit/collect_cfgs/collect_cfgs_test.bzl

@@ -1,3 +1,5 @@
+"""collect_cfgs_test_suite"""
+
 load("@bazel_skylib//lib:unittest.bzl", "analysistest", "asserts")
 load("//rust:defs.bzl", "rust_library", "rust_proc_macro")
 load("//rust:rust_common.bzl", "CrateInfo")
@@ -114,6 +116,11 @@ collect_cfgs_extra_exec_rustc_flags_test = analysistest.make(
 )
 
 def collect_cfgs_test_suite(name):
+    """Tests for the `//rust/settings:collect_cfgs` settings.
+
+    Args:
+        name (str): The name of the test suite.
+    """
     rust_library(
         name = "lib",
         srcs = ["lib.rs"],