rustc panics when trying to get session directory when building project on ramdisk

[jamclema]

Seems similar to #52440, but no cross platform weirdness is in play. Project builds fine on a normal C drive on windows, but when the same repo is cloned to a ramdisk (created by imdisk driver) on windows, rustc panics.
First incremental compilation gives an error so it appears to be handled, but then the compiler panics.

`
error: incremental compilation: error canonicalizing path : Incorrect function. (os error 1)

thread 'rustc' panicked at 'src\librustc\session\mod.rs:813: Trying to get session directory from IncrCompSession NotInitialized', src\librustc\util\bug.rs:37:26
`

Platform info:
rustc 1.36.0-nightly (50a0defd5 2019-05-21) running on x86_64-pc-windows-msvc compiler flags: -C debuginfo=2 -C incremental --crate-type bin

[jscarrott]

I'm also getting this issue using imdisk

[Stzx]

Is there any progress?

[Enselic]

Triage: Closing as duplicate of #48249