rust-doc does not open documentation on browser

[morarafrank]

Problem

When I run rustup doc on ubuntu 22.04, I get the following error message on Firefox browser.
The issue is that the same command opens the documentation without issues on Chrome.

Access to the file was denied.
The file at /home/morarafrank/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/index.html is not readable.
It may have been removed, moved, or file permissions may be preventing access.

Rustup version

rustup 1.24.3 (ce5817a94 2021-05-31)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.61.0 (fe5b13d68 2022-05-18)`

Installed toolchains

Default host: x86_64-unknown-linux-gnu
rustup home:  /home/morarafrank/.rustup

stable-x86_64-unknown-linux-gnu (default)
rustc 1.61.0 (fe5b13d68 2022-05-18)

[ehuss]

Do you perhaps have Firefox installed from Snap? Searching around, it looks like there is some kind of confinement system in Snap that prevents processes from accessing files. It looks like there is some kind of connections configuration for it.

[rbtcollins]

Dupe of #2988 just for snappy.

At this point we have no plans to run an embedded HTML server, so I'm going to close this.

[morarafrank]

Do you perhaps have Firefox installed from Snap? Searching around, it looks like there is some kind of confinement system in Snap that prevents processes from accessing files. It looks like there is some kind of connections configuration for it.

I've checked my browser and it has a strict snap configuration. how can i change it to say classic or devmode?

Getting the path using:
rustup doc --path

Outputs:
/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/index.html

---

Trying to open docs:
xdg-open "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/index.html"

Outputs error:

grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory
WSL Interopability is disabled. Please enable it before using WSL.
grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory

---

Fixed the problem using:
sudo apt purge wslu

[morarafrank]

Getting the path using: rustup doc --path

Outputs: /home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/index.html

Trying to open docs: xdg-open "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/index.html"

Outputs error:

grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory
WSL Interopability is disabled. Please enable it before using WSL.
grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory

Fixed the problem using: sudo apt purge wslu

this worked for me.