Failed regression tests on WSL2 with Ubuntu 20.04 LTS on Windows 10

[SileYin]

autodynam       test 001 FAILED Add termination to crescendo just before next dynmaics item in spine.
autodynam       test 002 FAILED Add termination to decrescendo just before next dynmaics item in spine.
autodynam       test 003 FAILED Add termination to crescendo on same line before next dynamics item.
autodynam       test 004 FAILED Add termination to decrescendo on same line before next dynamics item.
autodynam       test 005 FAILED Add termination to explicit wedges/hairpins.
autodynam       test 006 FAILED Add termination to interpretive (hidden) wedges/hairpins.
autostem        test 001 FAILED Add stems to notes in the treble clef
autostem        test 002 FAILED Add stems to notes in the bass clef
autostem        test 003 FAILED Remove stems from notes
autostem        test 004 FAILED Only add stems to notes which do not have them.
autostem        test 005 FAILED Add stems to notes, overwriting any which already exist.
autostem        test 006 FAILED Set the default direction of the middle staff line to point upwards.
autostem        test 007 FAILED Only override stem direction for non-fixed stems.
autostem        test 008 FAILED Override fixed stem directions
autostem        test 009 FAILED Don't add stems to notes which shouldn't have stems.
chorck          test 001 FAILED Example with four rule violations
extractx        test 045 FAILED Extract co-spine information along with a spine.
extractx        test 046 FAILED Extract co-spine information along with a spine.
extractx        test 047 FAILED Extract co-spine information along with a spine and its duplicate.
extractx        test 048 FAILED Extract co-spine information along with a spines in reverse order.
extractx        test 049 FAILED Extract co-spine information, ignoring rests in **kern data.
extractx        test 050 FAILED Extract co-spine information for the third spine of music.
harm2kern       test 010 FAILED Extracting only the base line of the chord.
notearray       test 001 FAILED Basic usage of the notearray program.
prange          test 001 FAILED Count the pitches in a rising major scale.
prange          test 002 FAILED Count the pitches in a rising major scale with different rhythms
prange          test 003 FAILED Count pitches with duration weighting
prange          test 006 FAILED Count pitches in music adding histogram fraction ranges.
scordur         test 001 FAILED Measure the duration in quarter notes of a short example
tiefix          test 001 FAILED Fix ties which are not correctly terminated.
tiefix          test 002 FAILED Fix ties which are not correctly initiated.
tiefix          test 003 FAILED Fix ties which are not correctly continued.
tindex          test 001 FAILED Extract a pitch sequence only.
tindex          test 002 FAILED Extract diatonic musical intervals from two spines.