lean4-htt/tests/elab_fail/forErrors.lean.out.expected
Sebastian Graf 40e8f4c5fb
chore: turn on new do elaborator in Core (#12656)
This PR turns on the new `do` elaborator in Init, Lean, Std, Lake and
the testsuite.

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-09 12:38:33 +00:00

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forErrors.lean:4:29-4:30: error(lean.synthInstanceFailed): failed to synthesize instance of type class
Std.ToStream α ?m
Hint: Type class instance resolution failures can be inspected with the `set_option trace.Meta.synthInstance true` command.
forErrors.lean:6:38-6:39: error(lean.synthInstanceFailed): failed to synthesize instance of type class
ToString α
Hint: Type class instance resolution failures can be inspected with the `set_option trace.Meta.synthInstance true` command.