Memory corruption (probably since 0.21.0) #253
Description
We have a service at my company that uses scraper for extracting data from HTML that recently started crashing.
I've tracked down the issue that appears after bumping scraper from 0.19.0 to the latest version.
The crash happens once in a blue moon with the system allocator, however with Jemalloc on linux, it happens almost immediately.
I have extracted some of our logic that consistently reproduces the issue and uploaded it here: https://github.com/tamasfe/scraper-segfault .
Simply run cargo run and observe the segmentation fault message.
I did not yet dive into the causes and attempts to fix it as tracking it down took me several hours already, I hope the repro is minimal enough for people who are familiar with the project internals.