Compile error from str_strip when compiling on Ubuntu 20.04

[kwoot]

Describe the bug
Compile error trying to compile on Ubuntu 20.04

error[E0658]: use of unstable library feature 'str_strip': newly added
--> src/app.rs:394:47
|
394 | self.context_name = self.context_name.strip_suffix('\n').unwrap_or("").to_string();
| ^^^^^^^^^^^^
|
= note: see issue #67302 rust-lang/rust#67302 for more information

error[E0658]: use of unstable library feature 'str_strip': newly added
--> src/app.rs:401:51
|
401 | self.context_filter = self.context_filter.strip_suffix('\n').unwrap_or("").to_string();
| ^^^^^^^^^^^^
|
= note: see issue #67302 rust-lang/rust#67302 for more information

To Reproduce

Steps to reproduce the behavior:

git clone https://github.com/kdheepak/taskwarrior-tui.git
cd taskwarrior-tui/
cargo build --release
rustc --explain E0658
cargo -V
rustc -V
Both at version 1.43.0

Environment (please complete the following information):

• Operating System:
• Installation:
• taskwarrior-tui version:

taskwarrior-tui --version

• task version:

task --version

Additional context and information

[kdheepak]

Closing since it is a duplicate of #27.

[MiChatz]

It wasn't so obvious the solutions for me.
I will just add some steps in case of anybody else looking for the solution to this issue.

1. uninstall rustc sudo apt remove rustc
2. reinstall rust curl https://sh.rustup.rs -sSf | bash -s -- -y --no-modify-path
3. add path to your .bashrc export PATH="$PATH:$HOME/.cargo/bin"
4. rebuild

[kdheepak]

Thanks for adding the detailed instructions. rustup also should have worked I believe.