Golang x/build: gotip-freebsd-riscv64 builder is in quarantined state

https://ci.chromium.org/ui/p/golang/builders/ci/gotip-freebsd-riscv64

In the Machine Pool section, it's visible that the freebsd-riscv64-mengzhuo builder is offline. Clicking on more details shows it's actually connected, just in quarantined state ("Had 2 consecutive BOT_DIED tasks"), which requires the swarming bot to be restarted at minimum. @mengzhuo Can you please take a look? Thanks.

CC @golang/release.

Comment From: dmitshur

This is fixed now, so closing. Thanks.

Comment From: dmitshur

The bot is currently missing, last seen 11h 54m ago. CC @mengzhuo.

Comment From: mengzhuo

This Sifive unmatched builder hanged without any log :( I had rebooted it.

Comment From: dmitshur

Thanks!