add cfg(target_env) to the reference
add cfg(target_env) to the reference

Fixes #27587

graydon/rust,graydon/rust,aidancully/rust,dwillmer/rust,graydon/rust,dwillmer/rust,GBGamer/rust,GBGamer/rust,dwillmer/rust,GBGamer/rust,aidancully/rust,dwillmer/rust,GBGamer/rust,dwillmer/rust,GBGamer/rust,aidancully/rust,dwillmer/rust,GBGamer/rust,graydon/rust,dwillmer/rust,dwillmer/rust,aidancully/rust,GBGamer/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,GBGamer/rust