Missmatch in Cabal Hash

[lapplislazuli]

Running:

nix-shell https://github.com/alpmestan/ghc.nix/archive/master.tar.gz --attr devShells.x86_64-darwin.default

I get the following error:

trace: checking if /Users/lapplis/Code/ghc/hadrian/hadrian.cabal is present:  yes
error:
       … while calling the 'derivationStrict' builtin

         at //builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'ghc-shell-for-hadrian-0.1.0.0-0'
         whose name attribute is located at /nix/store/hdbi4byxghl15z8c5sf4kp198ywjphkk-source/pkgs/stdenv/generic/make-derivation.nix:302:7

       … while evaluating attribute 'nativeBuildInputs' of derivation 'ghc-shell-for-hadrian-0.1.0.0-0'

         at /nix/store/hdbi4byxghl15z8c5sf4kp198ywjphkk-source/pkgs/stdenv/generic/make-derivation.nix:342:7:

          341|       depsBuildBuild              = lib.elemAt (lib.elemAt dependencies 0) 0;
          342|       nativeBuildInputs           = lib.elemAt (lib.elemAt dependencies 0) 1;
             |       ^
          343|       depsBuildTarget             = lib.elemAt (lib.elemAt dependencies 0) 2;

       (stack trace truncated; use '--show-trace' to show the full trace)

       error: hash mismatch in file downloaded from 'https://api.github.com/repos/commercialhaskell/all-cabal-hashes/tarball/82e253f8bf75aec8127af50889725d2e611c96c4':
         specified: sha256:156g114qhm93a1vz3nw8v360730ibpkps9bvkyl6bk00c3s8rhgg
         got:       sha256:1235wsvxsbsrs7iwbliyqayk7dy2kdkjx4f7954x1m9gz3152qvf

System:

Macbook Pro 2 GHz Quad-Core Intel Core i5 MacOs Ventura 13.3 (22E252) Nix Version 2.15.0

[supersven]

Hey @lapplislazuli ,

I've recently removed some (probably) related overrides to increase the environment's creation duration.

Could you please try if the issue exists with on this commit: https://github.com/alpmestan/ghc.nix/commit/f96f57ae48fbbb66ee2f717df0d5c74d45f8066d ?

[lapplislazuli]

Thanks for the quick answer @supersven.

I sure can try, but ... I must admit I don't know how. I am not too familiar with nix.

What are the commands to build the MacOS version? Running the 'pull online' version still gives the same issue as above.

[benbellick]

Hey, I have the same system (except 2.3 GHz Quad-Core Intel Core i7 and Ventura 13.3.1 (a) and I am having the same issue. I have checked out that commit and the issue still persists:

benjaminbellick@Benjamins-MBP ghc.nix % git status
HEAD detached at f96f57a
nothing to commit, working tree clean
benjaminbellick@Benjamins-MBP ghc.nix % nix-shell shell.nix 
error:
       … while calling the 'derivationStrict' builtin

         at //builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'ghc-shell-for-ghc-buildenv-9.3-0'
         whose name attribute is located at /nix/store/cvgimgg79cm5gr01zahk6i7gvvhgps4p-source/pkgs/stdenv/generic/make-derivation.nix:270:7

       … while evaluating attribute 'nativeBuildInputs' of derivation 'ghc-shell-for-ghc-buildenv-9.3-0'

         at /nix/store/cvgimgg79cm5gr01zahk6i7gvvhgps4p-source/pkgs/stdenv/generic/make-derivation.nix:311:7:

          310|       depsBuildBuild              = lib.elemAt (lib.elemAt dependencies 0) 0;
          311|       nativeBuildInputs           = lib.elemAt (lib.elemAt dependencies 0) 1;
             |       ^
          312|       depsBuildTarget             = lib.elemAt (lib.elemAt dependencies 0) 2;

       (stack trace truncated; use '--show-trace' to show the full trace)

       error: hash mismatch in file downloaded from 'https://api.github.com/repos/commercialhaskell/all-cabal-hashes/tarball/82e253f8bf75aec8127af50889725d2e611c96c4':
         specified: sha256:156g114qhm93a1vz3nw8v360730ibpkps9bvkyl6bk00c3s8rhgg
         got:       sha256:1235wsvxsbsrs7iwbliyqayk7dy2kdkjx4f7954x1m9gz3152qvf

[benbellick]

FYI, I was able to temporarily fix the issue and enter into a nix.shell by recreating the lock file (this is back on the most recent master commit now):

benjaminbellick@Benjamins-MBP oss % nix flake lock ghc.nix --recreate-lock-file --update-input all-cabal-hashes --extra-experimental-features nix-command --extra-experimental-features flakes
warning: updating lock file '/Users/benjaminbellick/coding/haskell/oss/ghc.nix/flake.lock':
• Updated input 'all-cabal-hashes':
    'github:commercialhaskell/all-cabal-hashes/82e253f8bf75aec8127af50889725d2e611c96c4' (2023-03-18)
  → 'github:commercialhaskell/all-cabal-hashes/e3497dbf7e576ac11e9194ebeeccfca235fd4f21' (2023-05-13)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/cd34d6ed7ba7d5c4e44b04a53dc97edb52f2766c' (2023-03-16)
  → 'github:nixos/nixpkgs/9656e85a15a0fe67847ee8cdb99a20d8df499962' (2023-05-12)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/194c2aa446b2b059886bb68be15ef6736d5a8c31' (2023-03-16)
  → 'github:nixos/nixpkgs/635a306fc8ede2e34cb3dd0d6d0a5d49362150ed' (2023-05-11)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/32b1dbedfd77892a6e375737ef04d8efba634e9e' (2023-03-16)
  → 'github:cachix/pre-commit-hooks.nix/fb58866e20af98779017134319b5663b8215d912' (2023-04-27)
warning: Git tree '/Users/benjaminbellick/coding/haskell/oss/ghc.nix' is dirty

[MangoIV]

Can you perhaps try checking out the latest commit pushed by the flake lock update action?

[benbellick]

Seems the issue still persists:

benjaminbellick@Benjamins-MBP ghc.nix % git status
On branch update_flake_lock_action
Your branch is up to date with 'origin/update_flake_lock_action'.

nothing to commit, working tree clean
benjaminbellick@Benjamins-MBP ghc.nix % nix develop . --extra-experimental-features nix-command --extra-experimental-features flakes
trace: checking if /hadrian/hadrian.cabal is present:  no
error:
       … while calling the 'derivationStrict' builtin

         at //builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'ghc-shell-for-ghc-buildenv-9.3-0'
         whose name attribute is located at /nix/store/cyqa3d8y0q5dn6mmpyvpr10cz946scqf-source/pkgs/stdenv/generic/make-derivation.nix:303:7

       … while evaluating attribute 'nativeBuildInputs' of derivation 'ghc-shell-for-ghc-buildenv-9.3-0'

         at /nix/store/cyqa3d8y0q5dn6mmpyvpr10cz946scqf-source/pkgs/stdenv/generic/make-derivation.nix:347:7:

          346|       depsBuildBuild              = lib.elemAt (lib.elemAt dependencies 0) 0;
          347|       nativeBuildInputs           = lib.elemAt (lib.elemAt dependencies 0) 1;
             |       ^
          348|       depsBuildTarget             = lib.elemAt (lib.elemAt dependencies 0) 2;

       (stack trace truncated; use '--show-trace' to show the full trace)

       error: NAR hash mismatch in input 'github:commercialhaskell/all-cabal-hashes/e3497dbf7e576ac11e9194ebeeccfca235fd4f21' (/nix/store/3dnhdcsnvg3xl3s7j2znz8blff24c0fb-source), expected 'sha256-BPaS75anHQ0LbRvW6tsfKEs3zTdGQ3AUzoY13eSl4p4=', got 'sha256-3ETGIGjKW+Z80ESfzrRCflDNfJi5a9KSDO/p0+rNtOs='

[hw202207]

Similar issue from macos

λ ~/m/ghc.nix/ master nix develop
trace: checking if /hadrian/hadrian.cabal is present:  no
error: NAR hash mismatch in input 'github:commercialhaskell/all-cabal-hashes/82e253f8bf75aec8127af50889725d2e611c96c4' (/nix/store/dm3b0dar6k7zpsrqnswvw492yf3mrv4w-source), expected 'sha256-78GM9GAAzGWon3slfeddEYwDzNiI2/F3UCNViEkIz5Q=', got 'sha256-bmNRwvgv1dBJSceRLmebwrczvcI+0sXj0Vkv3bfmZYg='
(use '--show-trace' to show detailed location information)

[MangoIV]

Tbh this looks like a nix bug (especially if recreating the lock file fixes it)

[MangoIV]

This does not get fixed by using the flake update branch, so I guess it's indeed a bug in nix. Can anyone of the mac users report this upstream at nixos/nix? Thanks in advance. Sorry I can't be of help, I don't own a mac

[MangoIV]

A workaround for now is running nix flake update locally.

[hw202207]

The workaround works for me. flake.lock got update. Would check in changes to get ride of the problem.