mise on Windows incorrectly trying to download jruby releases from rubyinstaller

[chadlwilson]

Not sure if this is a recent regression related to the changes for precompiled binaries, as this is my first stint trying out mise on Windows, so perhaps this is not new.

I do note some is_mri type logic in these places, but not sure if it's working as intended when deciding how to download/install.

mise/src/plugins/core/ruby_common.rs

Lines 9 to 11 in f5e835d

	pub fn is_mri_version(version: &str) -> bool {
	version.chars().next().is_some_and(|c| c.is_ascii_digit())
	}

mise/src/plugins/core/ruby.rs

Lines 357 to 361 in f5e835d

	async fn get_ruby_download_info(&self, version: &str) -> Result<Option<(String, String)>> {
	// Only standard MRI Ruby versions are in the index (e.g., "3.3.0", not "jruby-9.4.0")
	if !version.chars().next().is_some_and(|c| c.is_ascii_digit()) {
	return Ok(None);
	}

...since it seems to be going down this path:

mise/src/plugins/core/ruby_windows.rs

Lines 114 to 115 in f5e835d

	async fn download(&self, tv: &ToolVersion, pr: &dyn SingleReport) -> Result<PathBuf> {
	let url = super::ruby_common::rubyinstaller_url(&tv.version);

PS C:\Users\chad> mise use ruby@jruby-9
DEBUG Version: 2026.3.5 windows-arm64 (2026-03-07)
DEBUG ARGS: C:\Users\chad\scoop\apps\mise\current\bin\mise.exe use ruby@jruby-9
DEBUG [vfox] Getting metadata for yarn
DEBUG GET https://mise-versions.jdx.dev/tools/ruby.toml
DEBUG starting new connection: https://mise-versions.jdx.dev/
DEBUG connecting to 172.66.155.142:443
DEBUG connected to 172.66.155.142:443
DEBUG binding client connection
DEBUG client connection bound
DEBUG send frame=Settings { flags: (0x0), enable_push: 0, initial_window_size: 2097152, max_frame_size: 16384, max_header_list_size: 16384 }
DEBUG Connection; peer=Client
DEBUG pooling idle connection for ("https", mise-versions.jdx.dev)
DEBUG received frame=Settings { flags: (0x0), max_concurrent_streams: 100, initial_window_size: 65536, max_frame_size: 16777215 }
DEBUG send frame=Settings { flags: (0x1: ACK) }
DEBUG received frame=WindowUpdate { stream_id: StreamId(0), size_increment: 2147418112 }
DEBUG send frame=WindowUpdate { stream_id: StreamId(0), size_increment: 5177345 }
DEBUG send frame=Headers { stream_id: StreamId(1), flags: (0x5: END_HEADERS | END_STREAM) }
DEBUG received frame=Settings { flags: (0x1: ACK) }
DEBUG received settings ACK; applying Settings { flags: (0x0), enable_push: 0, initial_window_size: 2097152, max_frame_size: 16384, max_header_list_size: 16384 }
DEBUG received frame=Headers { stream_id: StreamId(1), flags: (0x4: END_HEADERS) }
DEBUG received frame=Data { stream_id: StreamId(1) }
DEBUG received frame=Data { stream_id: StreamId(1), flags: (0x1: END_STREAM) }
DEBUG GET https://mise-versions.jdx.dev/tools/ruby.toml 200 OK
INFO  ruby@jruby-9.4.14.0 [1/3] install
INFO  ruby@jruby-9.4.14.0 [1/3] downloading rubyinstaller-jruby-9.4.14.0-1-x64.7z
DEBUG GET Downloading https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-jruby-9.4.14.0-1/rubyinstaller-jruby-9.4.14.0-1-x64.7z to C:\Users\chad\AppData\Local\mise\downloads\ruby\jruby-9.4.14.0\rubyinstaller-jruby-9.4.14.0-1-x64.7z
DEBUG GET https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-jruby-9.4.14.0-1/rubyinstaller-jruby-9.4.14.0-1-x64.7z
DEBUG starting new connection: https://github.com/
DEBUG POST https://mise-versions.jdx.dev/api/track
DEBUG reuse idle connection for ("https", mise-versions.jdx.dev)
DEBUG send frame=Headers { stream_id: StreamId(3), flags: (0x4: END_HEADERS) }
DEBUG send frame=Data { stream_id: StreamId(3), flags: (0x1: END_STREAM) }
DEBUG connecting to 140.82.114.3:443
DEBUG connected to 140.82.114.3:443
DEBUG binding client connection
DEBUG client connection bound
DEBUG send frame=Settings { flags: (0x0), enable_push: 0, initial_window_size: 2097152, max_frame_size: 16384, max_header_list_size: 16384 }
DEBUG Connection; peer=Client
DEBUG pooling idle connection for ("https", github.com)
DEBUG send frame=WindowUpdate { stream_id: StreamId(0), size_increment: 5177345 }
DEBUG send frame=Headers { stream_id: StreamId(1), flags: (0x5: END_HEADERS | END_STREAM) }
DEBUG received frame=Settings { flags: (0x0), max_concurrent_streams: 100, initial_window_size: 67108864, max_frame_size: 68608, enable_connect_protocol: 1 }
DEBUG send frame=Settings { flags: (0x1: ACK) }
DEBUG received frame=Settings { flags: (0x1: ACK) }
DEBUG received settings ACK; applying Settings { flags: (0x0), enable_push: 0, initial_window_size: 2097152, max_frame_size: 16384, max_header_list_size: 16384 }
DEBUG received frame=Headers { stream_id: StreamId(1), flags: (0x4: END_HEADERS) }
DEBUG received frame=Data { stream_id: StreamId(1), flags: (0x1: END_STREAM) }
DEBUG GET https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-jruby-9.4.14.0-1/rubyinstaller-jruby-9.4.14.0-1-x64.7z 404 Not Found
Error:
   0: Failed to install core:ruby@jruby-9: HTTP status client error (404 Not Found) for url (https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-jruby-9.4.14.0-1/rubyinstaller-jruby-9.4.14.0-1-x64.7z)

Location:
   src\toolset\toolset_install.rs:230

Version:
   2026.3.5 windows-arm64 (2026-03-07)

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
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