crown install issue #39655

JimmyDdotEXE · 2025-10-04T03:30:33Z

JimmyDdotEXE
Oct 4, 2025

I'm trying to build Servo on x86_64 postmarketOS/Alpine Linux, but I'm running into the following errors during the crown install step of ./mach bootstrap.

~/servo $ ./mach bootstrap
mach bootstrap does not support postmarketOS. You may be able to install dependencies manually. See https://github.com/servo/servo/wiki/Building.
Press Enter to continue...
 * Installing Rust toolchain...
1.89.0-x86_64-unknown-linux-musl (overridden by '/home/jimmy/servo/rust-toolchain.toml')
 * Installing crown (the Servo linter)...
  Installing crown v0.0.1 (/home/jimmy/servo/support/crown)
   Compiling crown v0.0.1 (/home/jimmy/servo/support/crown)
error: crate `rustc_ast` required to be available in rlib format, but was not found in this form

error: crate `rustc_span` required to be available in rlib format, but was not found in this form

error: crate `rustc_data_structures` required to be available in rlib format, but was not found in this form

[truncated 209 rlib dependency errors]

error: crate `tracing_log` required to be available in rlib format, but was not found in this form

error: crate `ctrlc` required to be available in rlib format, but was not found in this form

error: crate `nix` required to be available in rlib format, but was not found in this form

error: could not compile `crown` (bin "crown") due to 215 previous errors
error: failed to compile `crown v0.0.1 (/home/jimmy/servo/support/crown)`, intermediate artifacts can be found at `/home/jimmy/servo/support/crown/target`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.
Traceback (most recent call last):
  File "/home/jimmy/servo/./mach", line 52, in <module>
    main(sys.argv)
  File "/home/jimmy/servo/./mach", line 45, in main
    sys.exit(mach_bootstrap.bootstrap_command_only(topdir))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jimmy/servo/python/mach_bootstrap.py", line 189, in bootstrap_command_only
    servo.platform.get().bootstrap(force, skip_platform, skip_lints)
  File "/home/jimmy/servo/python/servo/platform/base.py", line 65, in bootstrap
    installed_something |= self.install_crown(force)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jimmy/servo/python/servo/platform/base.py", line 108, in install_crown
    raise EnvironmentError("Installation of crown failed.")
OSError: Installation of crown failed.

Is this a know issue? Are there any known solutions to these errors?

I have curl 8.16.0, uv 0.8.22, and rustup 1.28.2 installed.

Also, since ./mach bootstrap doesn't support postmarketOS/Alpine, I've installed the following apk packages to try and manually handle the dependency step of ./mach bootstrap.

xbps libtool gcc libxi-dev freetype-dev libunwind-dev mesa-dev glib-dev pkgconfig libx11-dev libxrandr-dev gperf bzip2-dev fontconfig-dev cabextract expat-dev cmake libxcursor-dev libxmu-dev dbus-dev ncurses-dev harfbuzz-dev ccache glu-dev clang gstreamer-dev gst-plugins-base-dev gst-plugins-good gst-plugins-bad-dev gst-plugins-ugly vulkan-loader libxkbcommon libxkbcommon-x11

Thank you in advance for any advice or guidance!

jdm · 2025-10-08T19:41:17Z

jdm
Oct 8, 2025
Maintainer

That looks like something went wrong with installing the expected rustup components for your target. Try using rustup component add for each of the entries in https://github.com/servo/servo/blob/main/rust-toolchain.toml#L7.

0 replies

JimmyDdotEXE · 2025-10-11T00:47:18Z

JimmyDdotEXE
Oct 11, 2025
Author

Thank you for the reply! rustup says all those components are up to date, and I'm still seeing the same errors from ./mach bootstrap.

~/servo $ rustup --version
rustup 1.28.2 (2025-04-28)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.89.0 (29483883e 2025-08-04)`
~/servo $ rustup component add clippy
info: component 'clippy' for target 'x86_64-unknown-linux-musl' is up to date
~/servo $ rustup component add llvm-tools
info: component 'llvm-tools' for target 'x86_64-unknown-linux-musl' is up to date
~/servo $ rustup component add rustc-dev
info: component 'rustc-dev' for target 'x86_64-unknown-linux-musl' is up to date
~/servo $ rustup component add rustfmt
info: component 'rustfmt' for target 'x86_64-unknown-linux-musl' is up to date
~/servo $ rustup component add rust-src
info: component 'rust-src' is up to date

4 replies

jdm Oct 11, 2025
Maintainer

Ok, I suspect this is something to do with using a musl target, and I have no experience with that. For the time being, try using ./mach bootstrap --skip-lints instead and see if that gets you in a position to run a build.

JimmyDdotEXE Oct 28, 2025
Author

It definitely could be a musl issue. Are musl platforms unsupported?

I tried ./mach bootstrap --skip-lints, and this is the result:

~/servo $ ./mach bootstrap --skip-lints
 * Setting up virtual environment...
 * Installing Python requirements...
mach bootstrap does not support postmarketOS. You may be able to install dependencies manually. See https://github.com/servo/servo/wiki/Building.
Press Enter to continue...
 * Installing Rust toolchain...
1.89.0-x86_64-unknown-linux-musl (overridden by '/home/jimmy/servo/rust-toolchain.toml')
Dependencies were already installed!

It doesn't not get me to a build though. Here's the result of ./mach build:

/servo $ ./mach build
Traceback (most recent call last):
  File "/home/jimmy/servo/./mach", line 52, in <module>
    main(sys.argv)
  File "/home/jimmy/servo/./mach", line 47, in main
    mach = mach_bootstrap.bootstrap(topdir)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jimmy/servo/python/mach_bootstrap.py", line 236, in bootstrap
    mach.load_commands_from_file(os.path.join(topdir, path), module_name)
  File "/home/jimmy/servo/python/mach/mach/main.py", line 260, in load_commands_from_file
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/jimmy/servo/python/servo/package_commands.py", line 14, in <module>
    from github import Github
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/__init__.py", line 58, in <module>
    from github.GithubIntegration import GithubIntegration
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/GithubIntegration.py", line 8, in <module>
    from github.Installation import Installation
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/Installation.py", line 28, in <module>
    import github.Event
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/Event.py", line 32, in <module>
    import github.NamedUser
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/NamedUser.py", line 44, in <module>
    import github.Organization
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/Organization.py", line 50, in <module>
    import github.Repository
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/Repository.py", line 130, in <module>
    import github.PublicKey
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/github/PublicKey.py", line 34, in <module>
    from nacl import encoding, public
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/nacl/public.py", line 16, in <module>
    import nacl.bindings
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/nacl/bindings/__init__.py", line 16, in <module>
    from nacl.bindings.crypto_aead import (
  File "/home/jimmy/servo/.venv/lib/python3.11/site-packages/nacl/bindings/crypto_aead.py", line 17, in <module>
    from nacl._sodium import ffi, lib
ModuleNotFoundError: No module named '_cffi_backend'

Potentially out of scope of the original crown problem, but I get this same error after both ./mach bootstrap and ./mach bootstrap --skip-lints.

jschwe Oct 28, 2025
Collaborator

rustup says all those components are up to date,

I wouldn't trust that. rustup has a known concurrency issue, which can lead to a corrupt toolchain (without rustup being able to detect it). The only way to be sure is to uninstall 1.89.0 and reinstall. Take care to close all IDE windows (vs-code, rustrover) before reinstalling, otherwise a concurrent installation attempt could happen again.
See rust-lang/rustup#988

stsp Nov 21, 2025

I hit the same problem.
Reinstalling components doesn't
help. --skip-lints worked.

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jdm
Oct 8, 2025
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Oct 11, 2025
Author

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JimmyDdotEXE Oct 28, 2025
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