these 2 derivations will be built:
  /nix/store/g7vfb2wj8nbj9nk5m52m2q9kabshn31l-source.drv
  /nix/store/cj02frggixcxib1sqra2z8yc0pfi1pmi-structty-0.1.2.drv
building '/nix/store/k48b1yvczc7my6k506pxdxnl3jcj5qpj-source.drv'
source> structuredAttrs is enabled
source> exporting https://github.com/steineggerlab/StrucTTY.git (rev refs/tags/0.1.2) into /nix/store/q6rkxrz5nfg3fz739355xaylzf2a69nr-source
source> Initialized empty Git repository in /nix/store/q6rkxrz5nfg3fz739355xaylzf2a69nr-source/.git/
source> remote: Enumerating objects: 71, done.
source> remote: Counting objects: 100% (71/71), done.
source> remote: Compressing objects: 100% (68/68), done.
source> remote: Total 71 (delta 0), reused 29 (delta 0), pack-reused 0 (from 0)
source> Unpacking objects: 100% (71/71), 115.57 KiB | 9.63 MiB/s, done.
source> From https://github.com/steineggerlab/StrucTTY
source>  * tag               0.1.2      -> FETCH_HEAD
source> Switched to a new branch 'fetchgit'
source> refer to FETCH_HEAD as its original name refs/tags/0.1.2
source> Submodule 'lib/gemmi' (https://github.com/project-gemmi/gemmi.git) registered for path 'lib/gemmi'
source> Submodule 'lib/lodepng' (https://github.com/lvandeve/lodepng.git) registered for path 'lib/lodepng'
source> Cloning into '/nix/store/q6rkxrz5nfg3fz739355xaylzf2a69nr-source/lib/gemmi'...
source> remote: Enumerating objects: 755, done.        
source> remote: Counting objects: 100% (755/755), done.        
source> remote: Compressing objects: 100% (603/603), done.        
source> remote: Total 755 (delta 151), reused 425 (delta 148), pack-reused 0 (from 0)        
source> Receiving objects: 100% (755/755), 2.37 MiB | 5.07 MiB/s, done.
source> Resolving deltas: 100% (151/151), done.
source> Cloning into '/nix/store/q6rkxrz5nfg3fz739355xaylzf2a69nr-source/lib/lodepng'...
source> remote: Enumerating objects: 29, done.        
source> remote: Counting objects: 100% (29/29), done.        
source> remote: Compressing objects: 100% (27/27), done.        
source> remote: Total 29 (delta 7), reused 8 (delta 2), pack-reused 0 (from 0)        
source> Receiving objects: 100% (29/29), 269.20 KiB | 1.63 MiB/s, done.
source> Resolving deltas: 100% (7/7), done.
source> remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0 (from 0)
source> remote: Enumerating objects: 859, done.
source> remote: Counting objects: 100% (859/859), done.
source> remote: Compressing objects: 100% (451/451), done.
source> remote: Total 483 (delta 322), reused 56 (delta 27), pack-reused 0 (from 0)
source> Receiving objects: 100% (483/483), 682.85 KiB | 6.44 MiB/s, done.
source> Resolving deltas: 100% (322/322), completed with 311 local objects.
source> From https://github.com/project-gemmi/gemmi
source>  * branch            009757b9d3a8c464d501b08677fcb2a86f96a66f -> FETCH_HEAD
source> Submodule path 'lib/gemmi': checked out '009757b9d3a8c464d501b08677fcb2a86f96a66f'
source> remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0 (from 0)
source> remote: Enumerating objects: 21, done.
source> remote: Counting objects: 100% (21/21), done.
source> remote: Compressing objects: 100% (11/11), done.
source> remote: Total 11 (delta 10), reused 0 (delta 0), pack-reused 0 (from 0)
source> Unpacking objects: 100% (11/11), 2.73 KiB | 199.00 KiB/s, done.
source> From https://github.com/lvandeve/lodepng
source>  * branch            c572511174ce6864574acda70cb0cbe9ec39e23b -> FETCH_HEAD
source> Submodule path 'lib/lodepng': checked out 'c572511174ce6864574acda70cb0cbe9ec39e23b'
source> removing `.git'...
error: hash mismatch in fixed-output derivation '/nix/store/k48b1yvczc7my6k506pxdxnl3jcj5qpj-source.drv':
         specified: sha256-b8jNd8uUcZl0+NWrNkD7p2Q+PEupWP8VNzJf14/hhVc=
            got:    sha256-2KVpOQ2ufGCOD2IFvfbLsE5oy56MV/xKIVl82e7vLeM=
error: build of resolved derivation '/nix/store/k48b1yvczc7my6k506pxdxnl3jcj5qpj-source.drv' failed
error: Cannot build '/nix/store/cj02frggixcxib1sqra2z8yc0pfi1pmi-structty-0.1.2.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/y8bjafgvvjsr1vf1297nskj24wrwrg1s-structty-0.1.2