$ cd examples/bzlmod
$ bazel mod deps
ERROR: /home/z8v/.cache/bazel/_bazel_z8v/14948c2f427333385693e9a33acabedf/external/gcc_toolchain+/internal.bzl:43:17: Traceback (most recent call last):
        File "/home/z8v/.cache/bazel/_bazel_z8v/14948c2f427333385693e9a33acabedf/external/gcc_toolchain+/internal.bzl", line 117, column 9, in _non_bazel_dependencies_ext_impl
                _avl()
        File "/home/z8v/.cache/bazel/_bazel_z8v/14948c2f427333385693e9a33acabedf/external/gcc_toolchain+/internal.bzl", line 43, column 17, in _avl
                http_archive(
Error in repository_rule: no repository visible as '@' in the extension '@@gcc_toolchain+//:internal.bzl%non_bazel_dependencies', but referenced by label '@//:examples/avl/avl.BUILD.bazel' in attribute 'build_file' of http_archive 'avl'.
ERROR: error evaluating module extension @@gcc_toolchain+//:internal.bzl%non_bazel_dependencies
<root> (@_)

ERROR: Results may be incomplete as 1 extension failed.