Pin a commit that comes with ubsan and msan.

bazel/grpc_deps.bzl

@@ -120,12 +120,12 @@ def grpc_deps():
     if "com_github_bazelbuild_bazeltoolchains" not in native.existing_rules():
         native.http_archive(
             name = "com_github_bazelbuild_bazeltoolchains",
-            strip_prefix = "bazel-toolchains-44200e0c026d86c53470d107b3697a3e46469c43",
+            strip_prefix = "bazel-toolchains-b850ccdf53fed1ccab7670f52d6b297d74348d1b",
             urls = [
-                "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/44200e0c026d86c53470d107b3697a3e46469c43.tar.gz",
-                "https://github.com/bazelbuild/bazel-toolchains/archive/44200e0c026d86c53470d107b3697a3e46469c43.tar.gz",
+                "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/b850ccdf53fed1ccab7670f52d6b297d74348d1b.tar.gz",
+                "https://github.com/bazelbuild/bazel-toolchains/archive/b850ccdf53fed1ccab7670f52d6b297d74348d1b.tar.gz",
             ],
-            sha256 = "699b55a6916c687f4b7dc092dbbf5f64672cde0dc965f79717735ec4e5416556",
+            sha256 = "d84d6b2fe88ef99963febf91ddce33503eed14c155ace922e2122271b483be64",
         )
 
 # TODO: move some dependencies from "grpc_deps" here?

tools/internal_ci/linux/grpc_asan_on_foundry.sh

@@ -50,7 +50,7 @@ source tools/internal_ci/helper_scripts/prepare_build_linux_rc
   --strategy=Closure=remote  \
   --genrule_strategy=remote  \
   --experimental_strict_action_env=true \
-  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/asci-toolchain/nosla-debian8-clang-fl@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
+  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/cloud-marketplace/google/rbe-debian8@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
   --crosstool_top=@com_github_bazelbuild_bazeltoolchains//configs/debian8_clang/0.3.0/bazel_0.10.0:toolchain \
   --define GRPC_PORT_ISOLATED_RUNTIME=1 \
   --copt=-gmlt \

tools/internal_ci/linux/grpc_tsan_on_foundry.sh

@@ -50,7 +50,7 @@ source tools/internal_ci/helper_scripts/prepare_build_linux_rc
   --strategy=Closure=remote  \
   --genrule_strategy=remote  \
   --experimental_strict_action_env=true \
-  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/asci-toolchain/nosla-debian8-clang-fl@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
+  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/cloud-marketplace/google/rbe-debian8@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
   --crosstool_top=@com_github_bazelbuild_bazeltoolchains//configs/debian8_clang/0.3.0/bazel_0.10.0:toolchain \
   --define GRPC_PORT_ISOLATED_RUNTIME=1 \
   --copt=-gmlt \

tools/internal_ci/linux/grpc_ubsan_on_foundry.sh

@@ -38,7 +38,7 @@ source tools/internal_ci/helper_scripts/prepare_build_linux_rc
 "${KOKORO_GFILE_DIR}/bazel_wrapper.py" \
   --host_jvm_args=-Dbazel.DigestFunction=SHA256 \
   test --jobs="50" \
-  --test_timeout="1500,1500,1500,3600" \
+  --test_timeout="3600,3600,3600,3600" \
   --test_output=errors  \
   --verbose_failures=true  \
   --keep_going  \
@@ -50,7 +50,7 @@ source tools/internal_ci/helper_scripts/prepare_build_linux_rc
   --strategy=Closure=remote  \
   --genrule_strategy=remote  \
   --experimental_strict_action_env=true \
-  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/asci-toolchain/nosla-debian8-clang-fl@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
+  --experimental_remote_platform_override='properties:{name:"container-image" value:"docker://gcr.io/cloud-marketplace/google/rbe-debian8@sha256:b2d946c1ddc20af250fe85cf98bd648ac5519131659f7c36e64184b433175a33" }' \
   --crosstool_top=@com_github_bazelbuild_bazeltoolchains//configs/experimental/debian8_clang/0.3.0/bazel_0.10.0/ubsan:ubsan_experimental_toolchain \
   --define GRPC_PORT_ISOLATED_RUNTIME=1 \
   --copt=-gmlt \