rustup self update does not work

[elszben]

rustup self update does not work anymore. I've tried to remove everything and reinstall everything rust related and the same thing happens. No idea what caused it.

C:\Users\laci\Downloads>rustup self update
info: checking for self-updates
error: could not create link from 'C:\Users\laci.cargo\bin\rustup.exe' to 'C:\Users\laci.cargo\bin\rustc.exe'
info: backtrace:

stack backtrace:
0: 0x634c34 -
1: 0x5919db -
2: 0x591a66 -
3: 0x57026e -
4: 0x56ff51 -
5: 0x42eec9 -
6: 0x420ae3 -
7: 0x439330 -
8: 0x438aa5 -
9: 0x9190fb -
10: 0x9164ca -
11: 0x43d72c -
12: 0x4013e3 -
13: 0x75b57c04 - BaseThreadInitThunk
14: 0x77b5ad2f - RtlInitializeExceptionChain

C:\Users\laci\Downloads>

[kennytm]

Hi, what Windows version are you using?

(BTW rustup issues are better filed at https://github.com/rust-lang-nursery/rustup.rs/issues)

[elszben]

I'm using Windows 8.1.

Sorry about opening the issue here.

[DustinByfuglien]

Confirm.
I have this problem in Windows 7.

[meztez]

For some reason, rustup isnt able to remove the file already in the folder before doing the hardlink. I got it working by deleting them before running the self update. It gave link errors and a warning about rustfmt.

pub fn hardlink(src: &Path, dest: &Path) -> io::Result<()> {
let _ = fs::remove_file(dest); // this part fails
fs::hard_link(src, dest)
}

[Cristian-Malinescu]

I have same problem in Windows 10.

[joce]

@kennytm Should the issue be duplicated (link? ported over? (I'm unfamiliar with GH issue system)) to rustup or will it be taken care of here nonetheless?
(also yes, I have the same issue with Win10, Creator Update (version 1709))

[kennytm]

@joce It should better be copy-and-pasted to the rustup repo.

[lamogui]

got this here on windows 10 using "rustup update"

[matklad]

Hit this on CI. Looks like one workaround is to downgrade rustup. Here's an older version:

https://static.rust-lang.org/rustup/archive/1.7.0/i686-pc-windows-gnu/rustup-init.exe

[kennytm]

Closing in favor of rust-lang-nursery/rustup.rs#1316. Please follow that issue instead, thanks!