Unless I'm mistaken RAM is much faster than SSDs and since I do rebuild quite often, it would save some R/W cycles on my SSD and allow faster file access.

I do jot mind doing a full rebuild every morning

Solution:

These 2 comments gave me the best indication how to do it: cargo ramdisk and build.target-dir config options.

Would be great if cargo had a build.target-dir-prefix though. One could set and env var CARGO_TARGET_DIR_PREFIX and point it at /dev/shm or /tmp if it's a tmpfs and every rust project would have its artefacts end up in RAM.

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[–] [email protected] 16 points 1 week ago

As other already mentioned you can mount a RAM disk yourself to where the target folder would be placed. Alternatively you can change where cargo places its artifacts to somewhere you already have a ram disk mounted, e.g. /tmp

https://doc.rust-lang.org/cargo/reference/config.html#buildtarget-dir