semaphore: speed up build

- avoid stripping debug symbols and creating dbgsym packages
- avoid LTO, slows down build a lot
- avoid compressing packages, they are thrown out immediately after use
- avoid building udeb packages, not needed

(cherry picked from commit 7eedcb4)
(cherry picked from commit 81930bc)
(cherry picked from commit b070eb9)

Author: bluca

.semaphore/semaphore-runner.sh

@@ -101,8 +101,11 @@ EOF
             # now build the package and run the tests
             rm -rf "$ARTIFACTS_DIR"
             # autopkgtest exits with 2 for "some tests skipped", accept that
-            sudo "$AUTOPKGTEST_DIR/runner/autopkgtest" --env DEB_BUILD_OPTIONS=noudeb \
-                                                       --env TEST_UPSTREAM=1 ../systemd_*.dsc \
+            sudo "$AUTOPKGTEST_DIR/runner/autopkgtest" --env DEB_BUILD_OPTIONS="noudeb nostrip optimize=-lto" \
+                                                       --env DPKG_DEB_COMPRESSOR_TYPE="none" \
+                                                       --env DEB_BUILD_PROFILES="noudeb" \
+                                                       --env TEST_UPSTREAM=1 \
+                                                       ../systemd_*.dsc \
                                                        -o "$ARTIFACTS_DIR" \
                                                        -- lxc -s "$CONTAINER" \
                 || [ $? -eq 2 ]