Hi Discourse!
I am working on building out my NixOS config after switching from Arch, and everything has been going completely fine, except today after adding a swaylock and swayidle config, home-manager based, using programs.swaylock and services.swayidle, respectively, when things started blowing up.
I have since removed all config references to swaylock and swayidle, as that is when the problems began, but I continue to get this error whenever I run sudo nixos-rebuild switch:
unpacking channels...
error:
… while evaluating the attribute 'config'
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:9:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
… while calling the 'seq' builtin
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:18:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
(stack trace truncated; use '--show-trace' to show the full trace)
error: failed to extract archive (truncated gzip input)
building Nix...
error:
… while evaluating the attribute 'config'
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:9:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
… while calling the 'seq' builtin
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:18:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
(stack trace truncated; use '--show-trace' to show the full trace)
error: failed to extract archive (truncated gzip input)
building the system configuration...
error:
… while evaluating the attribute 'config.system.build.toplevel'
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:9:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
… while calling the 'seq' builtin
at /nix/store/rf5gc8bjqxn1jmf8ri1akl4i1lpd7kx9-nixos/nixos/lib/modules.nix:320:18:
319| options = checked options;
320| config = checked (removeAttrs config [ "_module" ]);
| ^
321| _module = checked (config._module);
(stack trace truncated; use '--show-trace' to show the full trace)
error: failed to extract archive (truncated gzip input)
Apologies for the long error message post, I just wanted to get it all in here. As far as I can tell in my very limited NixOS knowledge, there is no specific indicator as to where the issue is. Using the --show-trace option just adds a ton of errors to the output, with even less indication (though I can post as much as I can of the --show-trace output - there is so much that my terminal won’t scroll up anymore 
).
Can anyone tell from the above where things might have gone haywire…? Many thanks in advance!