How long does it take to run the full rustc bootstrap chain?

[Félix Baylac Jacqué]

Hey Guix,

I'd be curious to know how long it takes to run the full rustc bootstrap
chain on the Guix build farm. I'm sadly not sure how to approach this
problem.

Is there a way to extract this information from Cuirass or the Guix data
service?

Félix