The patch in comment 31 is a guess fix. Linux try run: https://treeherder.mozilla.org/#/jobs?repo=try&revision=8608c1b60646de06693e39427504332386a11b39 Windows: https://treeherder.mozilla.org/#/jobs?repo=try&revision=292fde21ba850465cc97c36d8193aa5dee909286
Bug 1729545 Comment 32 Edit History
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The patch in comment 31 is a guess fix. Try run https://treeherder.mozilla.org/#/jobs?repo=try&revision=745c960fb52a2de3d34dcdea643646537111a170