Move things around in github yml file, for clarity.

Also, this avoids building the list of test binaries in release mode.
They are not included in the neon.tgz tarball in release mode.

.github/workflows/build_and_test.yml

@@ -145,24 +145,15 @@ jobs:
             cov_prefix=()
           fi
 
+          # FIXME: What's this for?
+          mkdir -p /tmp/neon/etc/
+
+          # Install target binaries
+          mkdir -p /tmp/neon/bin/
           binaries=$(
             "${cov_prefix[@]}" cargo metadata --format-version=1 --no-deps |
             jq -r '.packages[].targets[] | select(.kind | index("bin")) | .name'
           )
-
-          test_exe_paths=$(
-            "${cov_prefix[@]}" cargo test --message-format=json --no-run |
-            jq -r '.executable | select(. != null)'
-          )
-
-          mkdir -p /tmp/neon/bin/
-          mkdir -p /tmp/neon/test_bin/
-          mkdir -p /tmp/neon/etc/
-
-          # Keep bloated coverage data files away from the rest of the artifact
-          mkdir -p /tmp/coverage/
-
-          # Install target binaries
           for bin in $binaries; do
             SRC=target/$BUILD_TYPE/$bin
             DST=/tmp/neon/bin/$bin
@@ -171,9 +162,14 @@ jobs:
 
           # Install test executables and write list of all binaries (for code coverage)
           if [[ $BUILD_TYPE == "debug" ]]; then
-            for bin in $binaries; do
-              echo "/tmp/neon/bin/$bin" >> /tmp/coverage/binaries.list
-            done
+            # Keep bloated coverage data files away from the rest of the artifact
+            mkdir -p /tmp/coverage/
+
+            mkdir -p /tmp/neon/test_bin/
+            test_exe_paths=$(
+              "${cov_prefix[@]}" cargo test --message-format=json --no-run |
+              jq -r '.executable | select(. != null)'
+            )
             for bin in $test_exe_paths; do
               SRC=$bin
               DST=/tmp/neon/test_bin/$(basename $bin)
@@ -183,6 +179,10 @@ jobs:
               strip "$SRC" -o "$DST"
               echo "$DST" >> /tmp/coverage/binaries.list
             done
+
+            for bin in $binaries; do
+              echo "/tmp/neon/bin/$bin" >> /tmp/coverage/binaries.list
+            done
           fi
 
       - name: Prepare neon artifact