}
		if compatPruning := pruningForGoVersion(compatVersion); compatPruning != ld.requirements.pruning {
			compatRS := newRequirements(compatPruning, ld.requirements.rootModules, ld.requirements.direct)
			ld.checkTidyCompatibility(ctx, compatRS, compatVersion)

			for m := range keepSums(ctx, ld, compatRS, loadedZipSumsOnly) {
				keep[m] = true
			}
		}

		if opts.TidyDiff {
			cfg.BuildMod = "readonly"