mirage/mirage: PR #1627: Cram tests less reliant on exact compiler errors

@0281c9c

Stages:

• ✔️ x86_64-debian-13-4.14 (6m34s)
• ✔️ arm64-debian-13-4.14 (4m27s)
• ✔️ x86_64-debian-13-5.3 (7m23s)
• ✔️ arm64-debian-13-5.3 (6m02s)
• ✔️ x86_64-debian-13-5.4 (6m56s)
• ✔️ arm64-debian-13-5.4 (6m35s)

History:

• 24/11/2025 09:02 ✔️ @0281c9c (7m23s)