ASAchyuthan Sivasankar
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Notes from research and open-source work.

When Docker Cache Lies: Debugging a Nightly Build Failure in vLLM

How a BuildKit bind-mount cache quirk broke vLLM nightly Docker images with ImportError: AnthropicOutputConfig — and how a SHA-256 checksum fixed it.

Jun 14, 2026
  • vLLM
  • Docker
  • BuildKit
  • debugging
  • open-source

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  • When Docker Cache Lies: Debugging a Nightly Build Failure in vLLM

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