First Startup dialog gets triggered when there's an error in .dune-prelude and error gets omitted

[bionade24]

When there is an error in .dune-prelude, the first startup dialog shows up, but no error message. I only managed to detect this by using strace:

openat(AT_FDCWD, "/home/oskar/.dune-prelude", O_RDONLY|O_CLOEXEC) = 3
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, {stx_mask=STATX_ALL|STATX_MNT_ID|STATX_SUBVOL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=22231, ...}) = 0
read(3, "#              _                "..., 22231) = 22231
read(3, "", 32)                         = 0
close(3)                                = 0
brk(0x5fb62d68f000)                     = 0x5fb62d68f000
brk(0x5fb62d6bf000)                     = 0x5fb62d6bf000
mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x75e202765000
brk(0x5fb62d6e0000)                     = 0x5fb62d6e0000
brk(0x5fb62d701000)                     = 0x5fb62d701000
munmap(0x75e202765000, 200704)          = 0
brk(0x5fb62d722000)                     = 0x5fb62d722000
brk(0x5fb62d743000)                     = 0x5fb62d743000
brk(0x5fb62d764000)                     = 0x5fb62d764000
write(2, "error while running prelude: ", 29error while running prelude: ) = 29
write(2, "cannot apply `", 14cannot apply `)          = 14
write(2, "@", 1@)                        = 1
write(2, " ", 1 )                        = 1
write(2, "fs exists?", 10fs exists?)              = 10
write(2, "` to the arguments ", 19` to the arguments )     = 19