Stuck downloading dependencies

[masesor]

What happened?

devbox shell intermittently freezes while downloading packages and then later when computing the environment.

Steps to reproduce

devbox shell

Observation:

[0/1 built, 1/26/32 copied (128.4/175.4 MiB), 45.2/56.1 MiB DL]
fetching python3-3.13.6 from https://cache.nixos.org

At this point, the process hangs indefinitely. Need to cancel (Ctrl+C)

---

Behavior 2: Freeze after downloading (during environment computation)

After pruning most packages (only keeping yq), Devbox passes the download phase but freezes at:

⣟ Computing the Devbox environment...

Command

shell

devbox.json

{
  "$schema": "https://raw.githubusercontent.com/jetify-com/devbox/0.16.0/.schema/devbox.schema.json",
  "packages": [
    "nodejs@22.9.0",
    "jq",
    "yq",
    "corepack",
    "jdk@21.0.4",
    "maven",
    "docker",
    "kubectl",
    "terraform",
    "awscli2",
    "entr",
  ],
  "env": {

  },
  "shell": {
    "init_hook": [
      ]
  },
}

Devbox version

0.16.0

Nix version

Nix Determinate 3.12.1

What system does this bug occur on?

Linux (x86-64)

Debug logs

time=2025-11-05T10:33:33.122Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T10:33:33.124Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T10:33:33.132Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=11.742485ms
time=2025-11-05T10:33:33.133Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.135Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T10:33:33.135Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T10:33:33.135Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=342.299µs
time=2025-11-05T10:33:33.135Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.320Z level=DEBUG source=go.jetify.com/devbox/nix/nix.go:143 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' --version --debug"
time=2025-11-05T10:33:33.506Z level=DEBUG source=go.jetify.com/devbox/nix/nix.go:143 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' --version --debug" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=2446 cmd.code=0 cmd.dur=186.267938ms
time=2025-11-05T10:33:33.506Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T10:33:33.506Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T10:33:33.507Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=614.477µs
time=2025-11-05T10:33:33.507Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.508Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.508Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.509Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
Info: Ensuring packages are installed.
time=2025-11-05T10:33:33.510Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=yq mode=auto
time=2025-11-05T10:33:33.510Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:40 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info 'github:NixOS/nixpkgs/aaff8c16d7fc04991cac6245bee1baa31f72b1e1?narHash=sha256-12V64nKG%2FO%2FguxSYnr5%2Fnq1EfqwJCdD2%2BcIGmhz3nrE%3D#yq' --json --impure"
time=2025-11-05T10:33:36.954Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:40 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info 'github:NixOS/nixpkgs/aaff8c16d7fc04991cac6245bee1baa31f72b1e1?narHash=sha256-12V64nKG%2FO%2FguxSYnr5%2Fnq1EfqwJCdD2%2BcIGmhz3nrE%3D#yq' --json --impure" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=2452 cmd.code=0 cmd.dur=3.443868986s
time=2025-11-05T10:33:36.954Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:61 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info --offline --json /nix/store/7j1z012hb6k7y490a53dz88jsbxhykqn-python3.13-yq-3.4.3"
time=2025-11-05T10:33:37.005Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:61 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info --offline --json /nix/store/7j1z012hb6k7y490a53dz88jsbxhykqn-python3.13-yq-3.4.3" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=2475 cmd.code=0 cmd.dur=50.887137ms
Info: Installing the following packages to the nix store: yq
time=2025-11-05T10:33:37.038Z level=DEBUG source=go.jetify.com/devbox/internal/nix/build.go:50 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' build --impure --no-link 'github:NixOS/nixpkgs/aaff8c16d7fc04991cac6245bee1baa31f72b1e1?narHash=sha256-12V64nKG%2FO%2FguxSYnr5%2Fnq1EfqwJCdD2%2BcIGmhz3nrE%3D#yq'"
[0/1 built, 1/26/32 copied (128.4/175.4 MiB), 45.2/56.1 MiB DL] fetching python3-3.13.6 from https://cache.nixos.org

time=2025-11-05T09:55:24.628Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T09:55:24.628Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T09:55:24.631Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=2.909643ms
time=2025-11-05T09:55:24.632Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.632Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T09:55:24.632Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T09:55:24.632Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=398.392µs
time=2025-11-05T09:55:24.634Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.806Z level=DEBUG source=go.jetify.com/devbox/nix/nix.go:143 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' --version --debug"
time=2025-11-05T09:55:24.846Z level=DEBUG source=go.jetify.com/devbox/nix/nix.go:143 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' --version --debug" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=3346 cmd.code=0 cmd.dur=39.560414ms
time=2025-11-05T09:55:24.846Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:126 msg="searching for config file (including parent directories)" path=.
time=2025-11-05T09:55:24.846Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:147 msg="trying config file" path=devbox.json
time=2025-11-05T09:55:24.846Z level=DEBUG source=go.jetify.com/devbox/internal/devconfig/config.go:134 msg="config file found" path=/home/my-user/dev/devbox.json dur=282.022µs
time=2025-11-05T09:55:24.846Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.847Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.848Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.850Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
Info: Ensuring packages are installed.
time=2025-11-05T09:55:24.851Z level=DEBUG source=go.jetify.com/devbox/internal/plugin/plugin.go:85 msg="creating files for package" pkg=nodejs@22.9.0
time=2025-11-05T09:55:24.851Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:24.851Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:145 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' store info --store daemon --json"
time=2025-11-05T09:55:24.902Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:145 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' store info --store daemon --json" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=3352 cmd.code=0 cmd.dur=50.839286ms
time=2025-11-05T09:55:24.902Z level=DEBUG source=go.jetify.com/devbox/internal/devbox/providers/nixcache/setup.go:86 msg="nixcache: running setup: first time setup"
time=2025-11-05T09:55:25.425Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:61 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info --offline --json /nix/store/f9yl8nlgcyazflxc2nj1cr9k9ika7v7z-nodejs-22.9.0"
time=2025-11-05T09:55:25.476Z level=DEBUG source=go.jetify.com/devbox/internal/nix/store.go:61 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' path-info --offline --json /nix/store/f9yl8nlgcyazflxc2nj1cr9k9ika7v7z-nodejs-22.9.0" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=3360 cmd.code=0 cmd.dur=50.569813ms
Info: Installing the following packages to the nix store: nodejs@22.9.0
time=2025-11-05T09:55:25.491Z level=DEBUG source=go.jetify.com/devbox/internal/nix/build.go:50 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' build --impure --no-link /nix/store/f9yl8nlgcyazflxc2nj1cr9k9ika7v7z-nodejs-22.9.0"
time=2025-11-05T09:55:53.506Z level=DEBUG source=go.jetify.com/devbox/internal/nix/build.go:50 msg="nix command exited" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' build --impure --no-link /nix/store/f9yl8nlgcyazflxc2nj1cr9k9ika7v7z-nodejs-22.9.0" cmd.path=/nix/var/nix/profiles/default/bin/nix cmd.pid=3368 cmd.code=0 cmd.dur=27.045203946s
time=2025-11-05T09:55:53.507Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:53.507Z level=DEBUG source=go.jetify.com/devbox/internal/plugin/plugin.go:85 msg="creating files for package" pkg=nodejs@22.9.0
time=2025-11-05T09:55:53.508Z level=DEBUG source=go.jetify.com/devbox/internal/devpkg/package.go:204 msg="package doesn't need patching" pkg=nodejs mode=auto
time=2025-11-05T09:55:53.523Z level=DEBUG source=go.jetify.com/devbox/internal/nix/nix.go:83 msg="running print-dev-env cmd" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' print-dev-env --json path:/home/my-user/dev/.devbox/gen/flake"
time=2025-11-05T09:55:53.523Z level=DEBUG source=go.jetify.com/devbox/internal/nix/nix.go:84 msg="nix command starting" cmd.args="nix --extra-experimental-features ca-derivations --option experimental-features 'nix-command flakes fetch-closure' print-dev-env --json path:/home/my-user/dev/.devbox/gen/flake"
⣟ Computing the Devbox environment...