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Date: Thu, 15 Oct 2020 07:17:23 +0200 (CEST)
From: Dietmar Maurer <dietmar@proxmox.com>
To: Proxmox Backup Server development discussion <pbs-devel@lists.proxmox.com>, 
 Stefan Reiter <s.reiter@proxmox.com>
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Subject: Re: [pbs-devel] [PATCH proxmox-backup 06/11] gc: avoid race between
 phase1 and forget/prune
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> @Dietmar: I went with the anyhow .context() method again - I know we talked
> about this, but using a std::io::Error directly also doesn't solve the problem,
> since we do a (io_)format_err(...) which removes the context again. And if we
> return the IO error directly, we'd have to add that text formatting to all call
> sites, or drop it entirely, which I both rather dislike.

Simply use File::open ??

let file = match std::fs::File::open(...)  {
 // check errors
};

let index =  FixedIndexReader::new(file)?;