regression: assertion failed: data.is_empty()

[Mark-Simulacrum]

https://crater-reports.s3.amazonaws.com/beta-1.43-1/beta-2020-03-12/reg/in_stream-0.0.45-alpha1/log.txt
https://crater-reports.s3.amazonaws.com/beta-1.43-1/beta-2020-03-12/reg/jnix-0.2.1/log.txt

[Centril]

cc @matthewjasper

[matthewjasper]

I think that this is fixed by #69591

[Mark-Simulacrum]

The relevant PR, #69591, is pending in a beta backport (#70742) -- once that lands and is released, we can easily test this.

[pnkfelix]

@Mark-Simulacrum I do not see #69591 listed in the version of PR #70742 that landed?