Use experimental container with Docker in CI.

.bazelci/presubmit.yml

@@ -130,5 +130,14 @@ platforms:
     - "-//container:image_test"
     test_targets:
     - "--"
-    - "//tests/container:build_tar_test"
-    - "//tests/contrib:test_idd_rule_output"
+    - "//tests/..."
+    - "-//tests/contrib:test_compare_ids_test_diff_ids_fails"
+    - "-//tests/contrib:test_compare_ids_test_invalid_tar_fails"
+    - "-//tests/contrib:test_compare_ids_test_invalid_tar_fails_multi_regex"
+    - "-//tests/contrib:test_compare_ids_test_no_images_with_id_fails"
+    - "-//tests/contrib:test_compare_ids_test_one_tar_no_id_fails"
+    - "-//tests/contrib:test_compare_ids_test_wrong_id_fails"
+    test_flags:
+    - "--extra_execution_platforms=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:nosla_xenial_docker"
+    - "--host_platform=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:nosla_xenial_docker"
+    - "--platforms=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:nosla_xenial_docker"

WORKSPACE

@@ -195,10 +195,9 @@ _nodejs_image_repos()
 
 http_archive(
     name = "bazel_toolchains",
-    sha256 = "c3b08805602cd1d2b67ebe96407c1e8c6ed3d4ce55236ae2efe2f1948f38168d",
-    strip_prefix = "bazel-toolchains-5124557861ebf4c0b67f98180bff1f8551e0b421",
+    sha256 = "7938215442cc96b1a16809f4643db14af7d91c3ef1e98d39593bb46862204537",
+    strip_prefix = "bazel-toolchains-809c13c3a96966f63c7a43c586cb4e72589184b6",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/5124557861ebf4c0b67f98180bff1f8551e0b421.tar.gz",
-        "https://github.com/bazelbuild/bazel-toolchains/archive/5124557861ebf4c0b67f98180bff1f8551e0b421.tar.gz",
+        "https://github.com/bazelbuild/bazel-toolchains/archive/809c13c3a96966f63c7a43c586cb4e72589184b6.tar.gz",
     ],
 )