diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index d183458..724e6dd 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -11,6 +11,12 @@ jobs:
   rust:
     name: cargo test
     runs-on: ubuntu-latest
+    # The job ran out of memory linking the test binaries (ld killed with
+    # signal 9, run 705 twice): no debug info, and at most two links at once.
+    # What is tested does not change.
+    env:
+      CARGO_PROFILE_DEV_DEBUG: "0"
+      CARGO_BUILD_JOBS: "2"
     steps:
       - uses: actions/checkout@v4
       # rust-toolchain.toml pins the channel (with clippy); rustup installs it on