nix

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Describe the bug

Packages build fails very often:

checking for true... true
error (ignored): error: cannot unlink '/tmp/nix-build-python3-minimal-3.9.12.drv-1/Python-3.9.12': Directory not empty
error: derivation '/nix/store/6xjmvr03428342gs1432ac0mn8myxnpc-grub-config.xml.drv' requires non-existent output 'out' from input derivation '/nix/store/88vs9d74w69j14s611vb5v7cn0
...
ran test tests/config.sh... [PASS]
installCheckPhase completed in 40 seconds
error: derivation '/nix/store/cqmxz06ggrnhr7wzf6s1kf39hykmsh6g-local-cmds.drv' requires non-existent output 'out' from input derivation '/nix/store/dw0x90b23k67mkav4bf24r63nvn97dir-nix-2.8.1.drv'
...
error: derivation '/nix/store/shnrbk0l8qdsfmvf4x6qp6nlvc0kdfjc-libmodsecurity-3.0.6.drv' requires non-existent output 'out' from input derivation '/nix/store/nrpsq5ld8fjp3adpimdiwkmg7wbhqsq3-lmdb-0.9.29.drv'
...
checking for references to /build/ in /nix/store/90wv2xdvci79wnj8nxlrxy73j1hiksjh-bind-9.18.3-host...
error: derivation '/nix/store/irc43zk5n8w2bp7ig0d5hlfi4ybm3vs9-system-path.drv' requires non-existent output 'host' from input derivation '/nix/store/ll61r00n2f62qkxlll7y0ba45mzby2m4-bind-9.18.3.drv'

I have to restart the build process manually each time. The problem happens on nix versions 2.8.1 and 2.9.0pre20220512_d354fc3 On version 2.8.0 the problem rarely occurred

May 25 '22 19:05 Izorkin

I have to restart the build process

same here with nix (Nix) 2.9.0pre20220505_f4102de and nix (Nix) 2.9.1

i have to call nix-build . -A qt6.qtwebengine 3 times to fix

error: derivation qtpositioning requires non-existent output 'out' from input derivation qtserialport

this is after nix garbage collect = empty store. no problem with populated store

build log

the "removing invalid path" looks suspicious

Jun 28 '22 12:06 milahu

My guess would be nix starting the next build too early before the outputs of the previous build is properly registered.

Jun 28 '22 13:06 NickCao

aka build input X does not exist #1744

{ pkgs }:
with pkgs;
let
  x = fetchFromGitHub {
    # ...
  };
in
stdenv.mkDerivation {
  buildInputs = [ x ];
  # ...
}

these 2 derivations will be built:
  /nix/store/g60qiv2b65238a6f4x32abm4n25028a1-source.drv
  /nix/store/dvblz3fi0x3227kj393y0vcmkann8rg6-qtwebengine-6.3.1.drv
building '/nix/store/g60qiv2b65238a6f4x32abm4n25028a1-source.drv'...

trying https://github.com/milahu/gnumake-tokenpool/archive/c85ddf72c69ccea41f840e5fcfa58ee6719aa038.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100  103k    0  103k    0     0   140k      0 --:--:-- --:--:-- --:--:--  140k
unpacking source archive /build/c85ddf72c69ccea41f840e5fcfa58ee6719aa038.tar.gz
building '/nix/store/dvblz3fi0x3227kj393y0vcmkann8rg6-qtwebengine-6.3.1.drv'...
build input /nix/store/l2vvz50anjhw7g1l9xkzjcs5k71nqw11-source does not exist
error: builder for '/nix/store/dvblz3fi0x3227kj393y0vcmkann8rg6-qtwebengine-6.3.1.drv' failed with exit code 1;
       last 1 log lines:
       > build input /nix/store/l2vvz50anjhw7g1l9xkzjcs5k71nqw11-source does not exist
       For full logs, run 'nix log /nix/store/dvblz3fi0x3227kj393y0vcmkann8rg6-qtwebengine-6.3.1.drv'.

nix-build -E 'with import <nixpkgs> {}; with pkgs; fetchFromGitHub {
     owner = "milahu"; 
     repo = "gnumake-tokenpool";
     rev = "5dabefe12144bb91b3bf9b8ec67004282e6f0f18";
     sha256 = "6CfKYQgYSzR/8Nule7gWkwn0W9crqlWcgPIr39LUYsk=";
   }'

Jun 30 '22 19:06 milahu

This issue is wreaking havoc on our CI. Fortunately it turns out that it is at least perfectly reproducible there, so I was able to bisect it using the Hydra binary tarballs down to the merge of https://github.com/NixOS/nix/pull/6227 /cc @edolstra. Which at least seems plausible as that PR directly changed the conditional leading to the error: https://github.com/NixOS/nix/pull/6227/files#diff-5784d1ad7c22601c75b86872534049bea5173377de5d61b7446452beabc16d3fL491-R534

Jul 02 '22 13:07 Kha

most nixpkgs staging PRs have this issue in ofborg-eval-lib-tests :/

Jul 12 '22 15:07 Artturin

I am suffering from this too and downgraded to nix 2.7.

Aug 23 '22 01:08 ghost

Hopefully this is somewhat helpful, but I'm experiencing this (1) seemingly more lately, (2) almost every time I have a large cross-compile rebuild. Not sure if it's the cross-compile part, the large build part, or if it's a misnomer. I know that when I cross rebuild my risc-v config, I basically need to instead run until ./build-that.sh; do sleep 1; done to get it to actually keep progressing and eventually finish the build.

edit: my current nixbuild.sh wrapper looks like this: (it retries for this error, "signal 9", etc): https://github.com/colemickens/nixcfg/blob/bb78cb9e42d4a78d963548e52c948aaf781292e5/misc/nixbuild.sh#L48-L74

Aug 28 '22 19:08 colemickens

I am suffering from this too and downgraded to nix 2.7.

Same here but now I hit #6816 (which I can patch around) and #6253.

Sep 15 '22 20:09 kjeremy

Edit: I guess while true; do nixos-install; done is a solution for now.

Sep 26 '22 07:09 ghost

Edit: I guess while true; do nixos-install; done is a solution for now.

~~Not completely. I sometimes like to stress-test my computer and nixpkgs by running nixos-rebuild --no-net, and after looping for a while I was unable to build anything really because any build would fail with "too many open files". So I suspect when this bug is triggered and the build is aborted, Nix is not closing open files properly.~~

EDIT: Disregard, I can trigger this from a cold boot.

Oct 03 '22 02:10 endgame

We hit this in CI where looping forever is not an option.

On Sun, Oct 2, 2022, 10:33 PM endgame @.***> wrote:

Edit: I guess while true; do nixos-install; done is a solution for now.

Not completely. I sometimes like to stress-test my computer and nixpkgs by running nixos-rebuild --no-net, and after looping for a while I was unable to build anything really because any build would fail with "too many open files". So I suspect when this bug is triggered and the build is aborted, Nix is not closing open files properly.

— Reply to this email directly, view it on GitHub https://github.com/NixOS/nix/issues/6572#issuecomment-1264853774, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABBACRF7FXIDP5MLUQOU4ODWBJAX3ANCNFSM5W6EUWFA . You are receiving this because you commented.Message ID: @.***>

Oct 03 '22 02:10 kjeremy

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/content-addressed-nix-call-for-testers/12881/206

Oct 08 '22 10:10 nixos-discourse

My rough guess is that this is one of the many bugs that arose with the implementation of impure derivations https://github.com/NixOS/nix/pull/6227

Oct 08 '22 20:10 Ericson2314

@Ericson2314 : You added this portion back in 2020: https://github.com/NixOS/nix/commit/2de201254e8669a6768bb739ff27fd94a87a71b9

The 6227 PR removed that fix. But the equivalent fix from that commit near (https://github.com/NixOS/nix/pull/6227/files#diff-5784d1ad7c22601c75b86872534049bea5173377de5d61b7446452beabc16d3fR412) was not removed. So it seams either both are need or neither. But i don't see a logic error in the translation between the two.

@Kha you mentioned you had a reproducer?

Oct 10 '22 04:10 tomberek

I am also able to reproduce this on our CI system. I have a build that fails with this every time. It always seems to be the same derivation failing with this error as well. Will have a look at the details, to see which one.

Oct 10 '22 05:10 terlar

I have a derivation that builds nearly every x86_64-linux derivation that I care about, and I patch mesa. So... basically anytime nixos-unstable moves, I hit this. Enough that I script around it. I can add some extra logging to save the logs from when this case hits and see if there's a pattern

  /nix/store/mw4cfrgqgjyvgbvbkp4fjy1jh16yv3rk-stage-2-init.sh.drv
  /nix/store/90y1xi74f5llb1rvr0zi9vvmjxj6nfmb-nixos-system-openstick-22.11.20221009.8eb771c.drv
copying 0 paths...
building '/nix/store/jwrg88l48lpk3i1l9d6kqkaz9fns2sil-lvm2-aarch64-unknown-linux-gnu-2.03.16.drv'...
building '/nix/store/aqf6nk4css0na23r11v17i50xwk4rx1v-libusb-aarch64-unknown-linux-gnu-1.0.26.drv'...
building '/nix/store/3faqh8w9rpljbal5qxmhf8bwgp83013j-dbus-aarch64-unknown-linux-gnu-1.14.0.drv'...
building '/nix/store/hzgpimk3rmhh6zwv6pgrqv669n44kc0p-qemu-7.1.0.drv'...
building '/nix/store/yli6hcfc878ny59691v8ckyc35hzaiwl-usbutils-aarch64-unknown-linux-gnu-014.drv'...
building '/nix/store/q4pmhgdc1f2hg8m7f6py49cm2zv20bik-dbus-glib-aarch64-unknown-linux-gnu-0.112.drv'...
building '/nix/store/q6pxbwdzhwpf0p4mv2hnrz1frs15vj6c-python3.10-dbus-python-1.2.18-aarch64-unknown-linux-gnu.drv'...
building '/nix/store/rlyiaqswagpnclqbf1r44n4isq76zmgv-cryptsetup-aarch64-unknown-linux-gnu-2.5.0.drv'...
error (ignored): error: cannot unlink '/tmp/nix-build-qemu-7.1.0.drv-3/qemu-7.1.0/build/docs': Directory not empty
error: derivation '/nix/store/dwg4qirqz6dvgax0fkwlnpilv3byi562-systemd-aarch64-unknown-linux-gnu-251.4.drv' requires non-existent output 'out' from input derivation '/nix/store/rlyiaqswagpnclqbf1r44n4isq76zmgv-cryptsetup-aarch64-unknown-linux-gnu-2.5.0.drv'
==:: nixbuild: build: retry (bug: nixos/nix#6572)
==:: nixbuild: build (on: auto) (log: /tmp/nixbuild-Zb2sdemU)
these 134 derivations will be built:

Oct 10 '22 17:10 colemickens

@colemickens my theory is that there's a race which is only triggered when a derivation D is scheduled to be built directly after one of its immediate inputs I. It might be necessary for I to be fairly large, so that when D begins its build, I hasn't finished being copied/registered/otherwise-set-up (not sure of the details) into its final position in the store. If the build scheduling allows for something else to happen in between, or if I is small, it gets set up in the store before D goes looking for it.

Oct 10 '22 22:10 endgame

still no luck to reproduce ...

#! /bin/sh

cat >/dev/null <<EOF

  build 2 expressions: small + large
  small is input for large

  reproduce
  nix-build: requires non-existent output 'out' from input derivation
  https://github.com/NixOS/nix/issues/6572

  dependencies
  nix-shell -p unixtools.xxd git

  workaround in /etc/nixos/flake.nix
  nix.package = pkgs.nixVersions.nix_2_7;

  bug is in nix 2.8 and later

EOF

# size of the "large" expression
#nix_body_size=10
nix_body_size=1000 # 5 seconds
#nix_body_size=5000 # 15 seconds
#nix_body_size=10000 # 50 seconds

# test version. force rebuild
version=$(date +%F.%H-%M-%S)

( set -x; nix --version )

use_git=true
git_port=8120 # random

use_http=false
http_port=8502 # random
http_host=127.0.0.1

if $use_git
then
  echo preparing git repo
  #git_dir=$(mktemp -d)
  git_base_path=git-repos
  git_path=test
  git_dir=$git_base_path/$git_path
  rm -rf $git_dir || true
  mkdir -p $git_dir
  git -C $git_dir init
  echo "version=$version" >$git_dir/test.txt
  git -C $git_dir add test.txt
  git -C $git_dir commit -m init
  #git -C $git_dir log # debug

  git_host=127.0.0.1
  # todo
  cp -r $git_dir ${git_dir}.2
  rm -rf ${git_dir}.2/.git
  git_sha=sha256-$(nix-hash --type sha256 ${git_dir}.2 | xxd -r -p | base64)
  rm -rf ${git_dir}.2

  echo serving git repo git://$git_host:$git_port/$git_path

  echo checking port $git_port
  echo "netstat -nvep | grep -w $git_port"
  netstat -nvep 2>/dev/null | grep -w $git_port

  echo starting git server
  git_pid_file=git-daemon.pid
  set -x
  if ! git daemon --listen=$git_host --port=$git_port --detach --pid-file=$git_pid_file --base-path=$git_base_path --export-all
  # --verbose --informative-errors
  then
    echo "error: failed to start git server"
  fi
  set +x
  sleep 1 # wait for server
  echo started git server
fi

if $use_http
then
  echo starting http server
  if ! which sirv >/dev/null
  then
    echo "please install the sirv http server:"
    echo "npm install -g sirv-cli"
    exit 1
  fi
  [ -d public ] || mkdir public
  # dev mode = no caching
  # probably a caching server like "python3 -m http.server"
  # would work too, as we kill the server after use
  sirv public/ --no-clear --dev --host $http_host --port $http_port &
  http_pid=$!
  sleep 1 # wait for server
  echo started http server with pid $http_pid
  (
    cd public/
    test_path=test.txt
    dd if=/dev/urandom of=$test_path bs=1024 count=4 status=none
    test_sha=$(sha256sum $test_path | awk '{ print $2 }')
    echo "test_sha = $test_sha"
  )
fi



nixfile=default.nix

#echo "writing nixfile head"

cat >$nixfile <<EOF
{ pkgs ? import <nixpkgs> {} }:
with pkgs;
let
EOF

if $use_git
then
cat >>$nixfile <<EOF
  small = fetchgit {
    url = "git://$git_host:$git_port/$git_path";
    sha256 = "$git_sha";
    name = "test-$version-small";
  };
EOF
elif $use_http
then
cat >>$nixfile <<EOF
  small = fetchurl {
    TODO
  };
EOF
else
cat >>$nixfile <<EOF
  small = writeText "test-$version-small" "version=$version";
EOF
fi

cat >>$nixfile <<EOF
in
# large
stdenv.mkDerivation {
  name = "test-$version";
  #buildInputs = [ small ];
  phases = [ "buildPhase" ];
  buildPhase = ''
    mkdir \$out
    cp -r \${small} \$out/small
    env >\$out/env.txt
  '';
EOF

echo "writing nixfile body ..."

# generate the "large" expression
for (( i=0; i<nix_body_size; i++ ))
do
  echo "  ENV_$i = \"$i\";"
done >>$nixfile

echo "writing nixfile body done"

#echo "writing nixfile tail"

cat >>$nixfile <<'EOF'
}
EOF



echo "running nix-build"

time nix-build || true # allow to fail



#echo "hit enter to stop servers"; read

if $use_git
then
  git_pid=$(cat $git_pid_file)
  echo stopping git server $git_pid
  kill $git_pid
  rm $git_pid_file
fi

if $use_http
then
  echo stopping http server
  kill $http_pid
fi

{ pkgs ? import <nixpkgs> {} }:
with pkgs;
let
  small = fetchgit {
    url = "git://127.0.0.1:8120/test";
    sha256 = "sha256-EPf/MJ9AC1zE91VaNU77XuqODdCmBBFblNFq4ZkIl10=";
    name = "test-2022-10-11.11-14-50-small";
  };
in
# large
stdenv.mkDerivation {
  name = "test-2022-10-11.11-14-50";
  #buildInputs = [ small ];
  phases = [ "buildPhase" ];
  buildPhase = ''
    mkdir $out
    cp -r ${small} $out/small
    env >$out/env.txt
  '';
  ENV_0 = "0";
  ENV_1 = "1";
  ENV_2 = "2";
  ENV_3 = "3";
  ENV_4 = "4";
  ENV_5 = "5";
  ENV_6 = "6";
  ENV_7 = "7";
  ENV_8 = "8";
  ENV_9 = "9";
}

maybe add more buildInputs to large

Oct 11 '22 09:10 milahu

I think you misread my comment. Can you repro if large is the input to small?

Oct 11 '22 09:10 endgame

aah, sorry ... in my experience, input is small

no repro with nix_body_size=0

Oct 11 '22 09:10 milahu

I tried up to a 20GB derivation without triggering the error.

It seems this is coming up in CI a lot. Is there a single-user/multi-user distinction here?

Oct 11 '22 15:10 tomberek

Maybe it requires a combination of heavy load and large derivation to trigger, what about limiting the cpu usage with cgroups and try again?

Oct 11 '22 16:10 NickCao

here's three failures since I added logging:

==> nixbuild-1665485511-SvXJzTCV <==
building '/nix/store/mk8vga75y220cv3kakqy4bdl6zh28bif-unit-script-nixos-activation-start.drv'...
building '/nix/store/9njc1nw481zyszmy04kgdw394yswfqxq-reload-container.drv'...
building '/nix/store/30vwv57m5zngh7rq34iqskfqknb57l0f-unit-mount-pstore.service.drv'...
building '/nix/store/r048mhjnx2dna72bkisay7rawldhshjp-unit-container-.service.drv'...
building '/nix/store/k0nf7hv80z059r2kwcvj5qzx671lzf9i-unit-nixos-activation.service.drv'...
building '/nix/store/2lgv1wrncf3flnxhnw5hswdv2j2zz7lr-openconnect-9.01.drv'...
building '/nix/store/kmqk1x7a85ls2a87c38czhmjv5701h6n-fix-paths.patch.drv'...
building '/nix/store/fjdb602kr5hg5wj027x1lgrab624hm7w-networkmanager-1.40.0.drv'...
building '/nix/store/l1b69i7lfiw8cxwgybnkqclq86rdcni5-networkmanager-aarch64-unknown-linux-gnu-1.40.0.drv'...
error: derivation '/nix/store/g1ir4bxvfz503zpl00py69h30by0dksr-hwdb.bin.drv' requires non-existent output 'out' from input derivation '/nix/store/l1b69i7lfiw8cxwgybnkqclq86rdcni5-networkmanager-aarch64-unknown-linux-gnu-1.40.0.drv'

==> nixbuild-1665498596-0NxwvjdR <==
  /nix/store/m2j8lj8d16k2dcxyfd3lsdnz98bahxxb-phodav-2.5
copying 0 paths...
copying path '/nix/store/3j3ma11xs8ly6865m8fprw75pvj1vc0d-iwd' from 'https://cache.nixos.org'...
copying path '/nix/store/d80iax5ixj7byx0088svm8jal9hphn42-spice-protocol-0.14.4' from 'https://cache.nixos.org'...
copying path '/nix/store/m2j8lj8d16k2dcxyfd3lsdnz98bahxxb-phodav-2.5' from 'https://cache.nixos.org'...
building '/nix/store/hnhx94ynlska8zkflcpfmqcrrm7asq10-usbredir-0.12.0.drv'...
copying path '/nix/store/h2381f1k78d30kylapkk3p86kj9wir1z-phodav-2.5-dev' from 'https://cache.nixos.org'...
building '/nix/store/x7bl8zsnl014yfmk58kdg0wcp90k2v3i-iwd-1.29.drv'...
building '/nix/store/x8sr8lyldmz9vv6j57hix61av5zcw9w2-spice-gtk-0.41.drv'...
error: derivation '/nix/store/c4xc8lmaxgykfwsnjrgalgcf9mfkg2lv-system-path.drv' requires non-existent output 'out' from input derivation '/nix/store/x7bl8zsnl014yfmk58kdg0wcp90k2v3i-iwd-1.29.drv'

==> nixbuild-1665508919-lW97k6ID <==
building '/nix/store/f1ikprcgwzwk0wcbwmj1aa9hpy20zrd5-unit-home-assistant.service.drv'...
building '/nix/store/c3s7gvc99dd9j8vxp2akph9643si5ci1-system-units.drv'...
building '/nix/store/nis6lpl25hb3ava21d4cln73hi60189i-system-units.drv'...
building '/nix/store/87si9hfa4dk2nx8mkwavxy0kbi6yp9zf-etc.drv'...
building '/nix/store/a3504wv0qwx8qnr6a07k278730myd7j8-etc.drv'...
building '/nix/store/fn2qz2cmayw8204sxyryy59ls9awkrlz-nixos-system-xeep-22.11.20221011.b78e482.drv'...
building '/nix/store/mfl8v7mlh9p2s419rxr8xyr05ybb3zvx-nixos-system-xeep-22.11.20221011.b78e482.drv'...
building '/nix/store/yvybpxh94a81wb77fq8q72ixjgc4mxs3-nixos-system-xeep-22.11.20221011.b78e482-to-cached.drv'...
building '/nix/store/28b81hvvkf4324yxfvnhzzi7s5ply1rx-udisks-2.9.4.drv'...
error: derivation '/nix/store/50v7swmbdr0gka6z38f4ng20fkqcrpky-system-path.drv' requires non-existent output 'out' from input derivation '/nix/store/28b81hvvkf4324yxfvnhzzi7s5ply1rx-udisks-2.9.4.drv'

Oct 11 '22 17:10 colemickens

@tomberek it's that after that that PR, instead of just using the DB for this stuff (and reading drv files) it is doing a bunch of in-memory maps building and looking up. Very easy to have concurrency bugs with this stuff. I am expecting that more than a blatant logic bug like forgetting the map may not be total.

Oct 12 '22 15:10 Ericson2314

Not sure if relevant, but I see this fairly consistently (i.e. almost every time I nixos-rebuild), mostly with man outputs:

error: derivation '/nix/store/zbbh13kgkzi2xjapiax8l5vzkr85izli-user-environment.drv' requires non-existent output 'man' from input derivation '/nix/store/3agcqdrkikqff86777hq829880qjv673-i686-w64-mingw32-stage-final-gcc-wrapper-11.3.0.drv'

Oct 15 '22 23:10 vs49688

Not sure if relevant, but I see this fairly consistently (i.e. almost every time I nixos-rebuild), mostly with man outputs:

error: derivation '/nix/store/zbbh13kgkzi2xjapiax8l5vzkr85izli-user-environment.drv' requires non-existent output 'man' from input derivation '/nix/store/3agcqdrkikqff86777hq829880qjv673-i686-w64-mingw32-stage-final-gcc-wrapper-11.3.0.drv'

get a log with nixos-rebuild switch -vvvvv maybe we'll get some extra info

Oct 15 '22 23:10 Artturin

I dropped a -v (only had 4), but managed to reproduce it: https://cadance.vs49688.net/cache/badlog.redacted.txt.xz (32MB uncompressed)

EDIT: It always seems to happen on i686-w64-mingw32-stage-final-gcc-wrapper-11.3.0.drv, which is one of:

      (pkgsCross.mingwW64.stdenv.cc.override({
        extraBuildCommands = ''
          printf '%s' '-L${pkgsCross.mingwW64.windows.mcfgthreads}/lib' >> $out/nix-support/cc-ldflags
          printf '%s' '-I${pkgsCross.mingwW64.windows.mcfgthreads.dev}/include' >> $out/nix-support/cc-cflags
        '';
      }))
      (pkgsCross.mingw32.stdenv.cc.override({
        extraBuildCommands = ''
          printf '%s' '-L${pkgsCross.mingw32.windows.mcfgthreads}/lib' >> $out/nix-support/cc-ldflags
          printf '%s' '-I${pkgsCross.mingw32.windows.mcfgthreads.dev}/include' >> $out/nix-support/cc-cflags
        '';
      }))

Oct 16 '22 05:10 vs49688

(how does printf '%s' '-I${pkgsCross.mingw32.windows.mcfgthreads.dev}/include' >> $out/nix-support/cc-cflags work without adding whitespace before the new flag?)

Oct 16 '22 06:10 milahu

Sheer luck, there happens to already be a trailing whitespace already there. I copied it from https://github.com/NixOS/nixpkgs/issues/156343#issuecomment-1019557774

Oct 16 '22 06:10 vs49688

This is a failed nix build -vvvvv, it's a big large: fail.log:

error: derivation '/nix/store/xhjazx61n5ylj5js21mjsvkq268yxrzb-hwdb.bin.drv' requires non-existent output 'out' from input derivation '/nix/store/7d8w142a8akv2789ks551m11pps5mzja-udisks-2.9.4.drv'

Oct 17 '22 02:10 colemickens