Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
Handling cleo (>=2.1.0,<3.0.0) from hook generated metadata: Requires-Dist (poetry)
Requirement not satisfied: cleo (>=2.1.0,<3.0.0)
This part discovers the needed build requirements and checks their status. cleo needs to fit in versions greater or equal 2.1.0 (>=2.1.0) but lower than 3.0.0 (<3.0.0). cleo has not yet been installed into the buildroot