Erreurs de vérification Rsync après le nettoyage des images Discourse

Salut. J’ai accumulé une très grosse pile d’images Discourse et j’ai décidé aujourd’hui d’exécuter « launcher cleanup » dans /var/discourse. Pas de problème, j’ai récupéré de l’espace, tout fonctionne bien après. Mais maintenant, lorsque rsync effectue mes sauvegardes habituelles, j’obtiens des erreurs de « vérification » avec des noms de fichiers « if you need to delete this raise an issue! » (voir ci-dessous). Des indices sur la façon de résoudre ce problème ? Merci !

160,904,025   0%  606.12ko/s    0:04:19 (xfr#89, ir-chk=2960/11742698)
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee
    160,904,472   0%  575.84ko/s    0:04:32 (xfr#90, ir-chk=2706/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9 »: Input/output error (5)
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9
    160,904,802   0%  556.29ko/s    0:04:42 (xfr#91, ir-chk=2705/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660 »: Input/output error (5)
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660
    160,905,383   0%  539.25ko/s    0:04:51 (xfr#92, ir-chk=2704/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee »: Input/output error (5)
WARNING: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee failed verification -- update discarded (will try again).
WARNING: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9 failed verification -- update discarded (will try again).
WARNING: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660 failed verification -- update discarded (will try again).
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee
    160,905,830   0%  530.29ko/s    0:04:56 (xfr#93, ir-chk=2706/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee »: Input/output error (5)
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9
    160,906,160   0%  522.55ko/s    0:05:00 (xfr#94, ir-chk=2705/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9 »: Input/output error (5)
var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660
    160,906,741   0%  514.68ko/s    0:05:05 (xfr#95, ir-chk=2704/11743975)
rsync: read errors mapping « /var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660 »: Input/output error (5)
ERROR: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/8481640fdb03a31432d5ad438417ff8b0a2776ee failed verification -- update discarded.
ERROR: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84853b1401c6de69a545b8734c98cf80aa7066b9 failed verification -- update discarded.
ERROR: var/lib/docker/overlay2/768455f3b0f19758d2404d9b7b5f3eaa07795b39fabc2d876f9eee4bdc7f0998/diff/tmp/discourse/if-you-need-to-delete-this-open-an-issue-async-disk-cache/3301f420539a1205713f47252e7779bda3a7bb4f/84fdd1fa55c4aafa195700caafb980ee63eb7660 failed verification -- update discarded.

Ces fichiers continuent de présenter les mêmes erreurs. Question : puisqu’il s’agit apparemment de fichiers temporaires, peut-on les supprimer sans risque ? Merci.