Cargo Features

cranelift-isle has no features set by default.

[dependencies]
cranelift-isle = { version = "0.114.0", features = ["logging", "fancy-errors"] }
logging = log
fancy-errors = codespan-reporting

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

codespan-reporting fancy-errors?
log logging?