I don’t see CUDA.jl anywhere in your environment. The B2Z5u slug as reported in your error message also doesn’t correspond to any released version. And finally, you seem to be using LLVM 7.1, which isn’t supported by any released version of CUDA.jl yet. So I think you have a CUDA.jl#master somewhere in a toplevel environment, which is not a supported configuration. If you need to continue using that version, upgrade GPUCompiler to v0.26.5 to fix this specific error, but again know that it is due to your environment mixing unsupported versions of packages.
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