Lock file error (OS X)

[Kerollmops]

For the moment I am fighting with multirust/rust/cargo, trying to compile rust-clippy in nightly 😢
I get this f*cking error, and don't know why (stable works fine but I need nightly)

error: failed to lock file: /.../Documents/rust-clippy/Cargo.lock

Caused by:
  Operation not supported (os error 45)

[oli-obk]

Have you checked if there are any cargo or rustc processes still running? Maybe they crashed/froze. Not sure if OSX has that, but try killall cargo until you get something like no processes found. Then delete the Cargo.lock and try again with cargo build.

[Kerollmops]

There were no processes still running (killall cargo/rust) and when I delete the Cargo.lock file, I get this error:

error: Unable to update registry https://github.com/rust-lang/crates.io-index

Caused by:
  failed to lock file: /.../.multirust/toolchains/nightly/cargo/registry/index/jackfan.us.kg-1ecc6299db9ec823/.cargo-index-lock

Caused by:
  Operation not supported (os error 45)

[oli-obk]

have you run multirust or cargo with root at any point? that might have ended up creating files owned by root and thus you can't access them now.

[Kerollmops]

No, never I don't have the root permissions.
That's not a permission problem, I think, because if I use a stable rust version (multirust override stable), the compilation starts and I get no errors until compiling Clippy itself...
stable cargo build output

[Kerollmops]

Ho ! I am on an nfs file system if that can help...

NFS parameters: vers=3,tcp,port=2049,nomntudp,
hard,intr,noresvport,negnamecache,callumnt,nolocks,
quota,rsize=65536,wsize=65536,readahead=16,
dsize=4096,nordirplus,nodumbtimr,timeo=10,
maxgroups=16,acregmin=5,acregmax=60,
acdirmin=5,acdirmax=60,nomutejukebox,nfc,sec=sys

[mcarton]

This does not look like it’s Clippy’s fault. Cargo has had some problems with nfs on apparently, and it has been “fixed” on Linux, but not OS X. Maybe you should report it there.

[Kerollmops]

By adding this link here, this issue is now visible on the this Cargo issue 👍

[mcarton]

That's not a permission problem, I think, because if I use a stable rust version (multirust override stable), the compilation starts and I get no errors until compiling Clippy itself...
stable cargo build output

Clippy can’t be built nor used with a non-nightly compiler.

By adding this link here, this issue is now visible on the this Cargo issue 👍

But no one there has been notified of that.

[Kerollmops]

Yup, but cargo/rust starts the compilation and give me these logic errors, not a lock file error, it starts compiling in other words...

[mcarton]

Closing as Cargo’s team has made a PR for that. Feel free to open an new issue if anything is still wrong after it has been merged.