Bugzilla

Okay, I've run it again today and managed to reproduce the assertion! I had to follow some more specific steps. There's a confounding Windows build issue that makes this trickier, since solved, in Bug 1800462. In my previous attempts, I had just used a slightly later revision, hoping it'd work out the same. I also was placing prefs.js in the nightly profile folder, hoping that would work, whereas I'm not using `--prefs` to specify the file. My exact steps were:

```bash
hg up 8495494c57f8
hg backout -r 6b9175bbaba8995fc54eb3da9837cc83b14741fc # back out the revision that causes local build failures
./mach clobber
./mach configure --enable-debug --enable-fuzzing
./mach build
pip install fuzzfetch grizzly-framework
rm -rf firefox/ # not sure if this is relevant, but my firefox folder already existed, so I removed it first then ran fuzzfetch
python -m fuzzfetch -d --fuzzing -n firefox
python -m grizzly.replay --prefs /c/prefs.js ./firefox/firefox.exe testcase.html
```

The final command gives me:
```
Result: Assertion failure: value > 0, at /builds/worker/checkouts/gecko/accessible/generic/LocalAccessible.cpp:3579
```

Okay, I've run it again today and managed to reproduce the assertion! I had to follow some more specific steps. There's a confounding Windows build issue that makes this trickier, since solved, in Bug 1800462. In my previous attempts, I had just used a slightly later revision, hoping it'd work out the same. I also was placing prefs.js in the nightly profile folder, hoping that would work, whereas I'm not using `--prefs` to specify the file. My exact steps were:

```bash
hg up 8495494c57f8
hg backout -r 6b9175bbaba8995fc54eb3da9837cc83b14741fc # back out the revision that causes local build failures
./mach clobber
./mach configure --enable-debug --enable-fuzzing
./mach build
pip install fuzzfetch grizzly-framework
rm -rf firefox/ # not sure if this is relevant, but my firefox folder already existed, so I removed it first then ran fuzzfetch
python -m fuzzfetch -d --fuzzing -n firefox
python -m grizzly.replay --prefs /c/prefs.js ./firefox/firefox.exe testcase.html
```

The final command gives me:
```
Result: Assertion failure: value > 0, at /builds/worker/checkouts/gecko/accessible/generic/LocalAccessible.cpp:3579
```

(also, side note, I don't seem to have pernosco access yet. I tried accessing it via my personal github - https://github.com/nmlapre - but don't have authorization to view the stack trace)

Okay, I've run it again today and managed to reproduce the assertion! I had to follow some more specific steps. There's a confounding Windows build issue that makes this trickier, since solved, in Bug 1800462, that affects this specific revision. In my previous attempts, I had just used a slightly later revision, hoping it'd work out the same. I also was placing prefs.js in the nightly profile folder, hoping that would work, whereas I'm not using `--prefs` to specify the file. My exact steps were:

```bash
hg up 8495494c57f8
hg backout -r 6b9175bbaba8995fc54eb3da9837cc83b14741fc # back out the revision that causes local build failures
./mach clobber
./mach configure --enable-debug --enable-fuzzing
./mach build
pip install fuzzfetch grizzly-framework
rm -rf firefox/ # not sure if this is relevant, but my firefox folder already existed, so I removed it first then ran fuzzfetch
python -m fuzzfetch -d --fuzzing -n firefox
python -m grizzly.replay --prefs /c/prefs.js ./firefox/firefox.exe testcase.html
```

The final command gives me:
```
Result: Assertion failure: value > 0, at /builds/worker/checkouts/gecko/accessible/generic/LocalAccessible.cpp:3579
```

(also, side note, I don't seem to have pernosco access yet. I tried accessing it via my personal github - https://github.com/nmlapre - but don't have authorization to view the stack trace)

Okay, I've run it again today and managed to reproduce the assertion! I had to follow some more specific steps. There's a confounding Windows build issue that makes this trickier, since solved, in Bug 1800462, that affects this specific revision. In my previous attempts, I had just used a slightly later revision, hoping it'd work out the same. I also was placing prefs.js in the nightly profile folder, hoping that would work, whereas now I'm using `--prefs` to specify the prefs file. My exact steps were:

```bash
hg up 8495494c57f8
hg backout -r 6b9175bbaba8995fc54eb3da9837cc83b14741fc # back out the revision that causes local build failures
./mach clobber
./mach configure --enable-debug --enable-fuzzing
./mach build
pip install fuzzfetch grizzly-framework
rm -rf firefox/ # not sure if this is relevant, but my firefox folder already existed, so I removed it first then ran fuzzfetch
python -m fuzzfetch -d --fuzzing -n firefox
python -m grizzly.replay --prefs /c/prefs.js ./firefox/firefox.exe testcase.html
```

The final command gives me:
```
Result: Assertion failure: value > 0, at /builds/worker/checkouts/gecko/accessible/generic/LocalAccessible.cpp:3579
```

(also, side note, I don't seem to have pernosco access yet. I tried accessing it via my personal github - https://github.com/nmlapre - but don't have authorization to view the stack trace)