crypto/ed25519: unrecognized failures

[gopherbot]

#!watchflakes
default <- pkg == "crypto/ed25519" && test == ""

Issue created automatically to collect these failures.

Example (log):

PASS
ok  	crypto/ed25519	0.043s

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "crypto/ed25519" && test == ""

2025-10-09 16:13 gotip-linux-amd64_avx512 go@9db7e30b crypto/ed25519 [PASS] (log)

PASS
ok  	crypto/ed25519	0.043s

— watchflakes