failed to solve: mount callback failed on /var/lib/containerd/tmpmounts/containerd-mount2480196171: mount callback failed on /var/lib/containerd/tmpmounts/containerd-mount3904362607: failed to open writer: ref moby/1/ocb2wmt94rdtnfywt81lz15ka locked for 46.573609718s (since 2026-09-27 04:19:34.622524481 +0000 UTC m=+318996.993321390): unavailable

Error recorded 1 times in PanelAlpha Engine deploys. The deploy log below is the recorded failure output.

Seen1 times

What the log looks like

Deploy log
failed to solve: mount callback failed on /var/lib/containerd/tmpmounts/containerd-mount2480196171: mount callback failed on /var/lib/containerd/tmpmounts/containerd-mount3904362607: failed to open writer: ref moby/1/ocb2wmt94rdtnfywt81lz15ka locked for 46.573609718s (since 2026-09-27 04:19:34.622524481 +0000 UTC m=+318996.993321390): unavailable

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Requires Ubuntu 24.04 or 26.04 · 2 GB RAM · 1 CPURead the documentation