redefining module Foo (current version defined in memory)

redefining module Foo (current version defined in memory)

redefining module Foo (current version defined in memory)

redefining module Foo (current version defined in memory)

redefining module Foo (current version defined in memory)

redefining module Foo (current version defined in memory)

the call to String.to_integer/1 will fail with ArgumentError

redefining module Foo (current version defined in memory)

redefining module Umbrella.First.MixProject (current version defined in memory)

redefining module Umbrella.MixProject (current version defined in memory)

variable "module" is unused (there is a variable with the same name in the context, use the pin operator (^) to match on it or prefix this variable with underscore if it is not meant to be used)