ignoreException has been split into two

The Finally part is a destructor, so using `ignoreExceptionInDestructor`
seems to be the correct choice here.

(cherry picked from commit 995e1922d7)

src/hydra-queue-runner/builder.cc

@@ -1,5 +1,6 @@
 #include <cmath>
 
+#include "error.hh"
 #include "state.hh"
 #include "hydra-build-result.hh"
 #include "finally.hh"
@@ -185,7 +186,7 @@ State::StepResult State::doBuildStep(nix::ref<Store> destStore,
                     unlink(result.logFile.c_str());
                 }
             } catch (...) {
-                ignoreException();
+                ignoreExceptionInDestructor();
             }
         }
     });