fix: logfile quoting and scancel error handling

snakemake_executor_plugin_slurm/__init__.py

@@ -137,7 +137,7 @@ def run_job(self, job: JobExecutorInterface):
             f"sbatch "
             f"--parsable "
             f"--job-name {self.run_uuid} "
-            f"--output {slurm_logfile} "
+            f"--output '{slurm_logfile}' "
             f"--export=ALL "
             f"--comment {comment_str}"
         )
@@ -408,6 +408,13 @@ def cancel_jobs(self, active_jobs: List[SubmittedJobInfo]):
                 )
             except subprocess.TimeoutExpired:
                 self.logger.warning("Unable to cancel jobs within a minute.")
+            except subprocess.CalledProcessError as e:
+                msg = e.stderr.strip()
+                if msg:
+                    msg = f": {msg}"
+                raise WorkflowError(
+                    f"Unable to cancel jobs with scancel (exit code {e.returncode}){msg}"
+                )
 
     async def job_stati(self, command):
         """Obtain SLURM job status of all submitted jobs with sacct