If primer sequences are specified and Snakemake 5.0 or newer is used, we get this:
SyntaxError:
Not all output, log and benchmark files of rule trim_forward_primers contain the same
wildcards. This is crucial though, in order to avoid that two or more jobs write to the
same file.
If primer sequences are specified and Snakemake 5.0 or newer is used, we get this: