Use abs from utils instead of the global

Fixes #3068

cargo/private/cargo_utils.bzl

@@ -1,6 +1,7 @@
 """Utility functions for the cargo rules"""
 
 load("//rust/platform:triple_mappings.bzl", "system_to_binary_ext")
+load("//rust/private:utils.bzl", "abs")
 
 def _resolve_repository_template(
         *,

rust/private/rustc.bzl

@@ -38,7 +38,7 @@ load(
     "make_static_lib_symlink",
     "relativize",
 )
-load(":utils.bzl", "is_std_dylib")
+load(":utils.bzl", "abs", "is_std_dylib")
 
 # This feature is disabled unless one of the dependencies is a cc_library.
 # Authors of C++ toolchains can place linker flags that should only be applied

rust/private/utils.bzl

@@ -175,6 +175,7 @@ def get_lib_name_for_windows(lib):
 
     return libname
 
+# TODO: remove after dropping support for Bazel < 7 when `abs` is a global
 def abs(value):
     """Returns the absolute value of a number.
 

rust/repositories.bzl

@@ -5,6 +5,7 @@ load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
 load("//rust/platform:triple.bzl", "get_host_triple", "triple")
 load("//rust/platform:triple_mappings.bzl", "triple_to_constraint_set")
 load("//rust/private:common.bzl", "rust_common")
+load("//rust/private:utils.bzl", "abs")
 load(
     "//rust/private:repository_utils.bzl",
     "BUILD_for_rust_analyzer_proc_macro_srv",