Rustflags seems to be cached by Cargo

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1

I add the asan(address sanitizer) to help me debug my unsafe codes, I tell rustc to use asan by writing this in the Cargo.toml:

[profile.dev]
rustflags = ["-Zsanitizer=address"]

but it seems that cargo cached this and even if I deleted these two line, the code still compile with asan, and if I change my rust from nightly to stable (asan can only be used in nightly for now), rustc throw an error (I'm already deleted any use of asan in my Cargo.toml):

error: the option Z is only accepted on the nightly compiler

It seems that cargo somehow cached the rustflags for me, is this by design or some bug?

2

Have you checked the modification is saved to the file system? Try open the file with something other than your main editor like cat or notepad.

3

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