diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 9a3d5bcd3..2fc9afdcd 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -196,7 +196,7 @@ jobs:
       with:
         ref: ${{ inputs.ref }}
         submodules: true
-    - name: Install nightly Rust
+    - name: Set up stable Rust
       uses: actions-rs/toolchain@v1
       with:
         toolchain: stable
diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index 2c168b36f..98664091a 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -35,6 +35,8 @@ jobs:
         with:
           tags: mountpoint-builder
           context: ./package
+          # https://github.com/docker/buildx/issues/379
+          ulimit: nofile=100000
       - name: Package an unofficial release
         run: docker run --mount type=bind,source=$(pwd),target=/mountpoint mountpoint-builder
       - name: Check release binary