Giving access to multiple users

[anthonyjclark]

Hello, I would like to install Rust under my user directory and then give access to other users in the same group. I am close to getting the results that I want, but I am getting stuck. I have done the following:

1. Installed rust with the rustup script.
2. Given execute (chmod g+x) permissions to the directories along the chain .rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin
3. Given execute permissions to the directories along the chain .rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib
4. Given execute permissions to the directories along the chain .rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/

On the other user's end, I did the following:

1. Added the binaries to their path: export PATH="/home/aclark/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin:/home/aclark/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/:$PATH"
2. Added the compiler's runtime libraries and the Rust libraries to their library path: export LD_LIBRARY_PATH="/home/aclark/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib:/home/aclark/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/:$LD_LIBRARY_PATH"

The problem seems to be that rustc cannot find the rust standard libraries. The following process gives an error:

$ cargo new hello_world --bin
     Created binary (application) `hello_world` project

$ cd hello_world/

$ cargo run
   Compiling hello_world v0.1.0 (file:///home/aclark2/hello_world)
error[E0463]: can't find crate for `std`

error: aborting due to previous error

error: Could not compile `hello_world`.

To learn more, run the command again with --verbose.

$ cargo run --verbose
   Compiling hello_world v0.1.0 (file:///home/aclark2/hello_world)
     Running `rustc src/main.rs --crate-name hello_world --crate-type bin -g -C metadata=c19af5a8f8086d2b --out-dir /home/aclark2/hello_world/target/debug --emit=dep-info,link -L dependency=/home/aclark2/hello_world/target/debug/deps`
error[E0463]: can't find crate for `std`

error: aborting due to previous error

error: Could not compile `hello_world`.

Caused by:
  process didn't exit successfully: `rustc src/main.rs --crate-name hello_world --crate-type bin -g -C metadata=c19af5a8f8086d2b --out-dir /home/aclark2/hello_world/target/debug --emit=dep-info,link -L dependency=/home/aclark2/hello_world/target/debug/deps` (exit code: 101)

I also tried the following to no avail:

$ rustc -L/home/aclark/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/ main.rs
error[E0463]: can't find crate for `std`

error: aborting due to previous error

If you have any recommendations on how to tell rustc where to find the standard library I would appreciate it. Thanks!

[Diggsey]

Dupe of #313