I did try specifically with that chromium artifact after seeing all the "Connection Broken" errors came during that download.
I also tried building your artifact in our test environment a few times, and it never failed that or other downloads.
This is an odd one.
We still haven't completely ruled out that it might be related to builders load, but it might also be the case that Google servers were misbehaving.
Let us know if you keep getting that error.
I did try specifically with that chromium artifact after seeing all the "Connection Broken" errors came during that download.
I also tried building your artifact in our test environment a few times, and it never failed that or other downloads.
This is an odd one.
We still haven't completely ruled out that it might be related to builders load, but it might also be the case that Google servers were misbehaving.
Let us know if you keep getting that error.