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@pronebird like this: ```rust #[macro_use] extern crate error_chain; use std::io; error_chain! { foreign_links { Io(io::Error); } } fn test() -> Result { let mut line = String::new(); io::stdin().read_line(&mut line)?; Ok(())...

The reason I initially set tit to the highest level is that I expect the index to be created only once, but used many times. Therefore, I assumed the indexing...

Nix-index depends on the file listings provided by hydra. So if you have custom overlays, there's no way for nix-index to know which files would be in the output of...

I am not sure why you'd need this, but the name is just the part after the first `-` in the store path. For example: ``` /nix/store/4v3fdagr3hfyyyv5pjf27kj3ifabqp5j-libuv-1.14.1 ``` Here the...

In that phase, `nix-index` calls nix to determine which derivations are available. Can you check if the following terminates for you: ``` nix-env -qaP --out-path --xml --arg config '{}' --file...

Ok, so while this is not a bug per-se in nix-index, it should give a better error message

To answer your question: it uses cache.nixos.org, the default nixos/nix binary cache. Configuring it is not possible right now. I'll look into clarifying the readme.

I am not sure I agree with your goal that `command-not-found` should be invisible. If it was truly invisible, then how are users going to know they have to create...

302 is a redirect, so I guess we should follow it? Looks like a bug to me. Probably something changed in s3/cloudfront that triggers it now.

Thanks for the PR! The new version would be broken in `configuration.nix` though, right? So maybe we should keep both versions (perhaps leave one commented out with a message explaining...