wip: debug upload error

Author: jfroche

.github/workflows/nix-build.yml

@@ -51,7 +51,7 @@ jobs:
           #!/usr/bin/env bash
           set -eouf
           export IFS=' '
-          /nix/var/nix/profiles/default/bin/nix copy --to 's3://nix-postgres-artifacts?secret-key=nix-secret-key' $OUT_PATHS
+          /nix/var/nix/profiles/default/bin/nix copy --to 's3://nix-postgres-artifacts?secret-key=nix-secret-key' $OUT_PATHS >> /tmp/nix-upload.log 2>&1
           EOF
           sudo chmod +x /etc/nix/upload-to-cache.sh
       - name: Install nix
@@ -78,3 +78,8 @@ jobs:
           AWS_ACCESS_KEY_ID: ${{ env.AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ env.AWS_SECRET_ACCESS_KEY }}
           AWS_SESSION_TOKEN: ${{ env.AWS_SESSION_TOKEN }}
+      - name: Results
+        if: ${{ always() }}
+        run: |
+          echo "Nix upload result:"
+          cat /tmp/nix-upload.log