"Invalid standard library" when setting standard library path

[LinAGKar]

I'm trying to set the standard library path, but no matter what I set it to, it says "Invalid standard library". I'm on OpenSUSE, and I have rust-std installed from the main repo. I've tried setting the path to /usr/lib/rustlib/x86_64-unknown-linux-gnu/lib, and the paths above that up to /usr/lib. I've also tried downloading the rust tarball and setting the path to rust-1.23.0-x86_64-unknown-linux-gnu/rust-std-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib all the way up to rust-1.23.0-x86_64-unknown-linux-gnu in the extracted contents, but no matter what I set it to I get the same error.

You're lucky you get an error message :)
For me, no matter what dir I select, not even the Apply button gets re-enabled.
There's a "Download via rustup" link which doesn't download it even if I click it (it just spends 30 sec pretending to, then it closes the download window)EDIT: my bad, i had no internet connection for this process(ie. denied).
Toolchain location is: /home/xftroxgpx/.cargo/bin which is why that link appears.

I'm starting to wonder if using jdk8 is the culprit, maybe I should be using jdk7...
(just like jdk9 didn't work) EDIT2: nvm, doesn't work with jdk7: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/intellij/idea/Main : Unsupported major.minor version 52.0
I also notice this warning on install (ArchLinux);
WARNING:
Running IntelliJ IDEA using OpenJDK is officially unsupported
because of possible performance and graphics problems

Plugin Version: 0.2.0.3091

EDIT: I'm pretty sure my rustup already has the std stuff, I've seen it during a manual rustup update

hey I fixed mine,
all I had to do is select a non .cargo/bin toolchain, and it let me select the Standard library dir. I think the ... button should also be disabled when Download via rustup is shown! (my guess is the path field is already, since it's not white - see screenshot in my prev. comment)

For OP, the Standard library path must be to the rustc sources(ie. the src dir of rustc repo), not the build library; now that invalid standard library: error is gone.

[LinAGKar]

Thanks, installing the rust-src package and pointing it to the contents of that works.

[sbutler2901]

On Arch Linux, I had to run rustup component add rust-src to install the stdlib and set the toolchain and stdlib as seen below. Note: the Toolchain Version should display the version when the Toolchain Location is set correctly (not in image because of <USER_HOME>

[AbrarNitk]

For MAC PyCharm
Toolchain location /Users//.rustup/toolchains/1.31.0-x86_64-apple-darwin/bin
When will you toolchain location it will auto detect the Toolchain version (1.31.0 in my case)
For standard library run rustup add component rust-src and give path of rust src
/Users//.rustup/toolchains/1.31.0-x86_64-apple-darwin/lib/rustlib/src/rust/src

Yay! It's works for me.

[rdesgroppes]

For MAC PyCharm
Toolchain location /Users//.rustup/toolchains/1.31.0-x86_64-apple-darwin/bin
When will you toolchain location it will auto detect the Toolchain version (1.31.0 in my case)
For standard library run rustup add component rust-src and give path of rust src
/Users//.rustup/toolchains/1.31.0-x86_64-apple-darwin/lib/rustlib/src/rust/src

Yay! It's works for me.

Worked for me with rustup component add rust-src