@xiota - it appears the issue is rust vs rustup. rustup is preferred, and pushed, by arch linux, but the icecat build requires rust. You might want to add it to your makedepends array, perhaps instead of cargo. Someone attempting this build without rust/cargo dev experience isn't going to pick up on the difference.

I'm guessing something else I was building in the Feb/Mar timeframe required rustup, so the Mar icecat build failed, but appeared to be correctly using "rust", or at least some version of it (which I now know was rustup).

To get it going, I had to uninstall rustup, install rust, and remove all .rust* and .cargo subdirectories, and start again.

I'm still running into this build error - have been since March. Can anybody fix this or let me know how it should be fixed:

 0:05.08 DEBUG: Executing: `rustup which cargo`
 0:05.08 DEBUG: The command returned non-zero exit status 101.
 0:05.08 DEBUG: Its error output was:
 0:05.08 DEBUG: | error: no such command: `which`
 0:05.08 DEBUG: |
 0:05.08 DEBUG: | help: a command with a similar name exists: `whichp`
 0:05.08 DEBUG: |
 0:05.08 DEBUG: | help: view all installed commands with `cargo --list`
 0:05.08 DEBUG: | help: find a package to install `which` with `cargo search cargo-which`
 0:05.08 ERROR: Command `rustup which cargo` failed with exit status 101.

Edit: I build probably 200+ packages from the AUR for my user repository and this is the only build that gives me any kind of rust/cargo problems. I have no background in rust/cargo so any advice has to be extremely explicit. My background is with C/C++ and Java. I've tried everything suggested via google, and tried to install anything close to "which" and nothing works.

Greetings all, I've taken the DIY instructions that the previous binary creator provided on their website, and put it all together to make new binary builds for Icecat. I intend to maintain this repo long-term or indefinitely, and will provide an announcement otherwise:

https://aur.archlinux.org/packages/icecat-bin