diff --git a/Artifacts.toml b/Artifacts.toml
index efeac46..217485f 100644
--- a/Artifacts.toml
+++ b/Artifacts.toml
@@ -128,65 +128,6 @@ os = "linux"
     sha256 = "8121c8d7d9152a835c84bf6b586c107ae582ed051780d37cb1e6f4f9bdad23aa"
     url = "https://static.rust-lang.org/dist/rust-1.91.0-loongarch64-unknown-linux-gnu.tar.gz"
 [[RustToolChain]]
-arch = "aarch64"
-git-tree-sha1 = "93b440f452efaef4bc8030218a79bc6c039c95b6"
-lazy = true
-os = "macos"
-
-    [[RustToolChain.download]]
-    sha256 = "630349bd157632ff65aafd1b5753e6a09153278cdac8196e8678b40b30cf1ecb"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-aarch64-apple-darwin.tar.gz"
-[[RustToolChain]]
-arch = "x86_64"
-git-tree-sha1 = "bea533b32d99b7554f9c9f046d84498ba56dbbe2"
-lazy = true
-os = "macos"
-
-    [[RustToolChain.download]]
-    sha256 = "6d9c5a4bf9962987d616417e2669a50b52cc7ecbfa682d56e9ce8244a57d7b60"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-x86_64-apple-darwin.tar.gz"
-[[RustToolChain]]
-arch = "i686"
-git-tree-sha1 = "b4e32a7d8d9cf59163eacd7761eb26f0e0feae0a"
-lazy = true
-libc = "glibc"
-os = "linux"
-
-    [[RustToolChain.download]]
-    sha256 = "b458db6cf8366fa9f830bf05b15e3866fbb2b7e0a1921b91fd52aff9accfb405"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-i686-unknown-linux-gnu.tar.gz"
-[[RustToolChain]]
-arch = "x86_64"
-git-tree-sha1 = "9c769251be2fe1312b6cb5efbc73326683cc542a"
-lazy = true
-libc = "glibc"
-os = "linux"
-
-    [[RustToolChain.download]]
-    sha256 = "ea7866c5cab0d8c99e7416bcc5f9ecf0e122d396b85c7e7dee5669f10ee80194"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-x86_64-unknown-linux-gnu.tar.gz"
-[[RustToolChain]]
-arch = "aarch64"
-git-tree-sha1 = "fa2d990a11c67d428c7a991af2a97281baa85a9a"
-lazy = true
-libc = "glibc"
-os = "linux"
-
-    [[RustToolChain.download]]
-    sha256 = "99dba6decb780158b2b94f0054ec15c8cd4a04a497c84349fb86fb7a70722c78"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-aarch64-unknown-linux-gnu.tar.gz"
-[[RustToolChain]]
-arch = "armv6l"
-call_abi = "eabihf"
-git-tree-sha1 = "36e7bcb4eefc3eb0ab1572de6e10c4c14fcb5f64"
-lazy = true
-libc = "glibc"
-os = "linux"
-
-    [[RustToolChain.download]]
-    sha256 = "0b5d43c00ef1a72352f7b08937018ab52f624047f1403e0d2c4d7c67456eff16"
-    url = "https://static.rust-lang.org/dist/rust-1.94.1-arm-unknown-linux-gnueabihf.tar.gz"
-[[RustToolChain]]
 arch = "armv7l"
 call_abi = "eabihf"
 git-tree-sha1 = "579ef58b0051123bccc4b685ecd6adc5ef616e14"
@@ -264,3 +205,62 @@ os = "windows"
     [[RustToolChain.download]]
     sha256 = "3b19e5264498b303127532b8497165c7c94968161b1a7fcf693a75826ff26d31"
     url = "https://static.rust-lang.org/dist/rust-1.94.1-x86_64-pc-windows-msvc.tar.gz"
+[[RustToolChain]]
+arch = "aarch64"
+git-tree-sha1 = "63a2cec15ef25f7e0bad09e243056570317a995b"
+lazy = true
+os = "macos"
+
+    [[RustToolChain.download]]
+    sha256 = "ec23ad2e0e15a7397d2c3c232356149cc871b7df7f47e25c2acb1070157f5398"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-aarch64-apple-darwin.tar.gz"
+[[RustToolChain]]
+arch = "x86_64"
+git-tree-sha1 = "45d00a22f1575daad2d25d5f2ceb41915fd82c77"
+lazy = true
+os = "macos"
+
+    [[RustToolChain.download]]
+    sha256 = "3f3d9f29f8eb7aa821bd8531cb9b1c3c74c3976aa558dfabfcc15c2febb3cfb8"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-x86_64-apple-darwin.tar.gz"
+[[RustToolChain]]
+arch = "i686"
+git-tree-sha1 = "69fb6c134be01b50876cd89f5ebe612c9f845173"
+lazy = true
+libc = "glibc"
+os = "linux"
+
+    [[RustToolChain.download]]
+    sha256 = "3ef2320bdfa9b69b19c6ca42f950b6bfb9d2af3b925b0c43a6bfecc4d355a66e"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-i686-unknown-linux-gnu.tar.gz"
+[[RustToolChain]]
+arch = "x86_64"
+git-tree-sha1 = "9d2c0cddc073eb558221929c81df69c1c8d214e7"
+lazy = true
+libc = "glibc"
+os = "linux"
+
+    [[RustToolChain.download]]
+    sha256 = "a47ac940abd12399d59ad15c877e7113fa35f2b9ec7e6a8a045d4fd8b9741dea"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-x86_64-unknown-linux-gnu.tar.gz"
+[[RustToolChain]]
+arch = "aarch64"
+git-tree-sha1 = "a52ca872c7d7c75357385df9319cc3b988f96c92"
+lazy = true
+libc = "glibc"
+os = "linux"
+
+    [[RustToolChain.download]]
+    sha256 = "3b9385d3144ac57616befa0ccbac524f857ba1b4ab074226e73a24d43568a98e"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-aarch64-unknown-linux-gnu.tar.gz"
+[[RustToolChain]]
+arch = "armv6l"
+call_abi = "eabihf"
+git-tree-sha1 = "134938e77fb845aba19b473fce1873af5925c154"
+lazy = true
+libc = "glibc"
+os = "linux"
+
+    [[RustToolChain.download]]
+    sha256 = "7d742098e8bb0d10415775634eed83240ae88c1bae6bc73b470ccf0be4629b4c"
+    url = "https://static.rust-lang.org/dist/rust-1.95.0-arm-unknown-linux-gnueabihf.tar.gz"
diff --git a/Project.toml b/Project.toml
index b241542..55567b8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,9 @@ Pkg = "1"
 julia = "1.10"
 
 [extras]
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
 
 [targets]
-test = ["Test"]
+test = ["Downloads", "TOML", "Test"]
diff --git a/gen/Project.toml b/gen/Project.toml
index 26df56d..ef9a220 100644
--- a/gen/Project.toml
+++ b/gen/Project.toml
@@ -1,3 +1,5 @@
 [deps]
 ArtifactUtils = "8b73e784-e7d8-4ea5-973d-377fed4e3bce"
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
+TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
diff --git a/gen/generate_Artifacts_toml.jl b/gen/generate_Artifacts_toml.jl
index 438d43a..1e8bf95 100644
--- a/gen/generate_Artifacts_toml.jl
+++ b/gen/generate_Artifacts_toml.jl
@@ -1,7 +1,8 @@
-using Base.BinaryPlatforms: Platform
 using ArtifactUtils
 using Pkg.Artifacts
 
+include(joinpath(@__DIR__, "rust_dist_targets.jl"))
+
 const RUST_VERSION = if length(ARGS) > 0
     strip(ARGS[1])
 else
@@ -10,61 +11,30 @@ end
 const ARTIFACTS_TOML = joinpath(dirname(@__DIR__), "Artifacts.toml")
 const ARTIFACT_NAME = "RustToolChain"
 
-# バージョン形式の検証（X.Y.Z 形式のみ）
-function validate_version(version::AbstractString)::Bool
-    return match(r"^\d+\.\d+\.\d+$", version) !== nothing
+# バージョン形式の検証
+if !validate_version(RUST_VERSION)
+    error("Invalid Rust version format: '$RUST_VERSION'. Expected format: X.Y.Z (e.g., 1.92.0)")
 end
 
-# Rust triplet から Julia Platform へのマッピング
-const PLATFORM_MAPPINGS = [
-    # Apple platforms
-    ("aarch64-apple-darwin", Platform("aarch64", "macos")),
-    ("x86_64-apple-darwin", Platform("x86_64", "macos")),
-
-    # Linux - GNU libc
-    ("i686-unknown-linux-gnu", Platform("i686", "linux")),
-    ("x86_64-unknown-linux-gnu", Platform("x86_64", "linux")),
-    ("aarch64-unknown-linux-gnu", Platform("aarch64", "linux")),
-    ("arm-unknown-linux-gnueabihf", Platform("armv6l", "linux")),
-    ("armv7-unknown-linux-gnueabihf", Platform("armv7l", "linux")),
-    ("powerpc64le-unknown-linux-gnu", Platform("powerpc64le", "linux")),
-    ("riscv64gc-unknown-linux-gnu", Platform("riscv64", "linux")),
+@info "Generating Artifacts.toml for Rust $RUST_VERSION"
 
-    # Linux - musl libc
-    # ("i686-unknown-linux-musl", Platform("i686", "linux"; libc="musl")),
-    ("x86_64-unknown-linux-musl", Platform("x86_64", "linux"; libc="musl")),
-    ("aarch64-unknown-linux-musl", Platform("aarch64", "linux"; libc="musl")),
-    ("arm-unknown-linux-musleabihf", Platform("armv6l", "linux"; libc="musl")),
-    ("armv7-unknown-linux-musleabihf", Platform("armv7l", "linux"; libc="musl")),
+const SUPPORTED_PLATFORM_MAPPINGS = supported_platform_mappings_for_version(RUST_VERSION)
 
-    # FreeBSD
-    ("x86_64-unknown-freebsd", Platform("x86_64", "freebsd")),
-    # ("aarch64-unknown-freebsd", Platform("aarch64", "freebsd")),
+if isempty(SUPPORTED_PLATFORM_MAPPINGS)
+    error("No supported Rust installer targets found for Rust $RUST_VERSION")
+end
 
-    # Windows
-    ("i686-pc-windows-msvc", Platform("i686", "windows")),
-    ("x86_64-pc-windows-msvc", Platform("x86_64", "windows")),
+const SKIPPED_PLATFORM_TRIPLETS = [
+    triplet for (triplet, _) in PLATFORM_MAPPINGS
+    if triplet ∉ Set(first.(SUPPORTED_PLATFORM_MAPPINGS))
 ]
 
-function rust_triplet_to_platform(triplet::String)
-    for (rust_triplet, platform) in PLATFORM_MAPPINGS
-        if rust_triplet == triplet
-            return platform
-        end
-    end
-    error("Unknown platform triplet: $triplet")
+if !isempty(SKIPPED_PLATFORM_TRIPLETS)
+    @warn "Skipping targets missing from Rust distribution manifest" version=RUST_VERSION triplets=SKIPPED_PLATFORM_TRIPLETS
 end
 
-# バージョン形式の検証
-if !validate_version(RUST_VERSION)
-    error("Invalid Rust version format: '$RUST_VERSION'. Expected format: X.Y.Z (e.g., 1.92.0)")
-end
-
-@info "Generating Artifacts.toml for Rust $RUST_VERSION"
-
-function add_rust_toolchain_for_platform(triplet::String)
+function add_rust_toolchain_for_platform(triplet::String, platform)
     url = "https://static.rust-lang.org/dist/rust-$(RUST_VERSION)-$(triplet).tar.gz"
-    platform = rust_triplet_to_platform(triplet)
 
     @info "Adding Rust toolchain for $triplet" platform url
 
@@ -80,12 +50,12 @@ function add_rust_toolchain_for_platform(triplet::String)
 end
 
 # すべてのプラットフォームを追加
-for (triplet, _) in PLATFORM_MAPPINGS
+for (triplet, platform) in SUPPORTED_PLATFORM_MAPPINGS
     try
-        add_rust_toolchain_for_platform(triplet)
+        add_rust_toolchain_for_platform(triplet, platform)
     catch e
         @warn "Failed to add platform $triplet" exception=(e, catch_backtrace())
     end
 end
 
-@info "Finished adding Rust toolchains to $ARTIFACTS_TOML"
\ No newline at end of file
+@info "Finished adding Rust toolchains to $ARTIFACTS_TOML"
diff --git a/gen/rust_dist_targets.jl b/gen/rust_dist_targets.jl
new file mode 100644
index 0000000..1608727
--- /dev/null
+++ b/gen/rust_dist_targets.jl
@@ -0,0 +1,67 @@
+using Base.BinaryPlatforms: Platform
+using Downloads
+using TOML
+
+# Rust triplet から Julia Platform へのマッピング
+const PLATFORM_MAPPINGS = [
+    # Apple platforms
+    ("aarch64-apple-darwin", Platform("aarch64", "macos")),
+    ("x86_64-apple-darwin", Platform("x86_64", "macos")),
+
+    # Linux - GNU libc
+    ("i686-unknown-linux-gnu", Platform("i686", "linux")),
+    ("x86_64-unknown-linux-gnu", Platform("x86_64", "linux")),
+    ("aarch64-unknown-linux-gnu", Platform("aarch64", "linux")),
+    ("arm-unknown-linux-gnueabihf", Platform("armv6l", "linux")),
+    ("armv7-unknown-linux-gnueabihf", Platform("armv7l", "linux")),
+    ("powerpc64le-unknown-linux-gnu", Platform("powerpc64le", "linux")),
+    ("riscv64gc-unknown-linux-gnu", Platform("riscv64", "linux")),
+
+    # Linux - musl libc
+    ("x86_64-unknown-linux-musl", Platform("x86_64", "linux"; libc="musl")),
+    ("aarch64-unknown-linux-musl", Platform("aarch64", "linux"; libc="musl")),
+
+    # FreeBSD
+    ("x86_64-unknown-freebsd", Platform("x86_64", "freebsd")),
+
+    # Windows
+    ("i686-pc-windows-msvc", Platform("i686", "windows")),
+    ("x86_64-pc-windows-msvc", Platform("x86_64", "windows")),
+]
+
+function validate_version(version::AbstractString)::Bool
+    return match(r"^\d+\.\d+\.\d+$", version) !== nothing
+end
+
+function rust_channel_manifest_url(version::AbstractString)::String
+    return "https://static.rust-lang.org/dist/channel-rust-$(version).toml"
+end
+
+function available_rust_targets(manifest_text::AbstractString)::Set{String}
+    parsed = TOML.parse(manifest_text)
+    pkg = get(parsed, "pkg", Dict{String, Any}())
+    rust = get(pkg, "rust", Dict{String, Any}())
+    targets = get(rust, "target", Dict{String, Any}())
+
+    return Set(
+        String(triplet) for (triplet, metadata) in pairs(targets)
+        if get(metadata, "available", false)
+    )
+end
+
+function supported_platform_mappings(manifest_text::AbstractString)
+    available_targets = available_rust_targets(manifest_text)
+    return [
+        (triplet, platform) for (triplet, platform) in PLATFORM_MAPPINGS
+        if triplet in available_targets
+    ]
+end
+
+function supported_platform_mappings_for_version(version::AbstractString)
+    validate_version(version) || error(
+        "Invalid Rust version format: '$version'. Expected format: X.Y.Z (e.g., 1.92.0)",
+    )
+
+    manifest_text = read(Downloads.download(rust_channel_manifest_url(version)), String)
+    return supported_platform_mappings(manifest_text)
+end
diff --git a/test/generator_platforms.jl b/test/generator_platforms.jl
new file mode 100644
index 0000000..fd2765f
--- /dev/null
+++ b/test/generator_platforms.jl
@@ -0,0 +1,25 @@
+using Test
+using RustToolChain: RustToolChain
+
+include(joinpath(pkgdir(RustToolChain), "gen", "rust_dist_targets.jl"))
+
+@testset "Rust dist target filtering" begin
+    manifest = """
+    [pkg.rust.target.aarch64-apple-darwin]
+    available = true
+
+    [pkg.rust.target.x86_64-unknown-linux-musl]
+    available = true
+
+    [pkg.rust.target.armv7-unknown-linux-musleabihf]
+    available = true
+    """
+
+    mappings = supported_platform_mappings(manifest)
+    triplets = first.(mappings)
+
+    @test "aarch64-apple-darwin" in triplets
+    @test "x86_64-unknown-linux-musl" in triplets
+    @test "armv7-unknown-linux-musleabihf" ∉ triplets
+    @test "arm-unknown-linux-musleabihf" ∉ triplets
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index 2018498..81440f2 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,6 +2,8 @@
 using Test
 using RustToolChain: RustToolChain, cargo, rustc
 
+include("generator_platforms.jl")
+
 @testset "RustToolChain" begin
     @test cargo() isa Cmd
     @test rustc() isa Cmd