Outage in Fly.io

Deploys using Depot Builders failing

Resolved Major
October 28, 2025 - Started about 1 month ago - Lasted about 3 hours
Official incident page

Incident Report

We are investigating failures when trying to build using the default Depot builders. The recommended workaround is to use `--depot=false` with `fly deploy`. The error is`Error: failed to fetch an image or build from source: error building: unavailable: unexpected EOF`
Components affected
Fly.io Remote Builds

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 10/28/2025 09:21PM

This incident has been resolved.

MONITORING about 1 month ago - at 10/28/2025 09:06PM

A fix has been implemented by Depot (https://status.depot.dev/incidents/01K8NTPVB41CD7NT3059QQ5MD8), and we are seeing recovery. We are continuing to monitor.

IDENTIFIED about 1 month ago - at 10/28/2025 08:37PM

We are seeing intermittent deploy failures when using Depot builders. Customers can also follow the Depot status page at https://status.depot.dev for updates.

Customers can still deploy using Fly.io hosted builders with `fly deploy --depot=false`

MONITORING about 1 month ago - at 10/28/2025 07:05PM

We are seeing deploys using Depot builders succeed again, but we are continuing to monitor.

Customers can still deploy using Fly.io hosted builders with `fly deploy --depot=false`

INVESTIGATING about 1 month ago - at 10/28/2025 06:46PM

We are investigating failures when trying to build using the default Depot builders.

The recommended workaround is to use `--depot=false` with `fly deploy`.

The error is`Error: failed to fetch an image or build from source: error building: unavailable: unexpected EOF`

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