Trunk SwiftPM is unable to cross-compile swift-crypto for Android with this build system

[finagolfin]

I'm testing out trunk SwiftPM with cross-compiling for Android and while a simple package like swift-system works fine, a package like swift-crypto which depends on a C module like CCryptoBoringSSL errors out:

> ANDROID_NDK_HOME=/Users/finagolfin/swift/ndk-27d ~/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift build --swift-sdk aarch64-unknown-linux-android28
Building for debugging...
error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line:     cd /Users/finagolfin/swift

/Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift:17:29: error: no such module 'CCryptoBoringSSL'
15 | @_exported import CryptoKit
16 | #else
17 | @_implementationOnly import CCryptoBoringSSL
   |                             `- error: no such module 'CCryptoBoringSSL'
18 | import CryptoBoringWrapper
19 | import Foundation
Failed frontend command:
/Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources/resource_bundle_accessor.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/AES-GCM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/BoringSSL/ChaChaPoly_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/ChaChaPoly.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/Cipher.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/Nonces.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/ASN1.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Any.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1BitString.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Boolean.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Identifier.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Integer.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Null.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1OctetString.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Strings.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ArraySliceBigint.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/GeneralizedTime.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ObjectIdentifier.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/ECDSASignature.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/PEMDocument.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/PKCS8PrivateKey.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/SEC1PrivateKey.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/SubjectPublicKeyInfo.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/CryptoKitErrors.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/BoringSSL/Digest_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/Digest.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/Digests.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/HashFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/HashFunctions_SHA2.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-AEAD.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Ciphersuite.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KDF.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KexKeyDerivation.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-LabeledExtract.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Utils.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/DHKEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-KEM-Curve25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-NIST-EC-KEMs.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/HPKE-KEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/HPKE-Errors.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/HPKE.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-Context.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-KeySchedule.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Modes/HPKE-Modes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Insecure/Insecure.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Insecure/Insecure_HashFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/KEM/KEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/BoringSSL/ECDH_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/DH.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/ECDH.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Derivation/HKDF.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Wrapping/AESWrap.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Wrapping/BoringSSL/AESWrap_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/Ed25519_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/NISTCurvesKeys_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/X25519Keys_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/Curve25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/Ed25519Keys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/NISTCurvesKeys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/X25519Keys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/Symmetric/SymmetricKeys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/HMAC/HMAC.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MACFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MessageAuthenticationCode.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/PRF/AES.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSASignature_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSA_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/EdDSA_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/ECDSA.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/Ed25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/Signature.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/CryptoKitErrors_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/RNG_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/SafeCompare_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/Zeroization_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/PrettyBytes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/SafeCompare.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/SecureBytes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/Zeroization.swift -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /Users/finagolfin/swift/ndk-27d/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -I /Users/finagolfin/swift/swift-crypto/.build/out/Products/Debug-android -module-cache-path /Users/finagolfin/swift/swift-crypto/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -D CRYPTO_IN_SWIFTPM -D CRYPTO_IN_SWIFTPM_FORCE_BUILD_API -D Xcode -serialize-debugging-options -enable-upcoming-feature MemberImportVisibility -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing\#/Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /Users/finagolfin/swift/swift-crypto/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/finagolfin/swift -resource-dir /Users/finagolfin/Library/org.swift.swiftpm/swift-sdks/swift-DEVELOPMENT-SNAPSHOT-2026-04-16-a_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /Users/finagolfin/swift -Xcc -resource-dir -Xcc /Users/finagolfin/swift/ndk-27d/toolchains/llvm/prebuilt/darwin-x86_64/lib/clang/18 -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/swift-overrides.hmap -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Products/Debug-android/include -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources-normal/aarch64 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources/aarch64 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Crypto -package-name swift_crypto -const-gather-protocols-file /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto_const_extract_protocols.json -in-process-plugin-server-path /Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Users/finagolfin/swift/build/Ninja-Release/toolchain-macosx-arm64/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -sysroot /Users/finagolfin/swift/ndk-27d/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -emit-module-doc-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftdoc -emit-module-source-info-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftsourceinfo -emit-objc-header-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-Swift.h -serialize-diagnostics-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.dia -emit-dependencies-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.d -parse-as-library -o /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftmodule

error: Build failed

The local Swift toolchain I'm building has the source checked out to compiler commit 366b4d2d7 from late last week and corresponding commits from that time, like swift-build commit 440d404 and SwiftPM commit 7b7265859, with swiftlang/swift-package-manager#9955 applied. I downloaded this Android SDK bundle from the CI around that time, which works fine if I revert to --build-system native.

I tried reproducing with a recent trunk linux toolchain in a container building natively for linux but couldn't, so this appears specific to SDK bundle support. My guess is that swift-build is not computing the package's dependencies properly, as it tries to compile the Swift portion of the package right away, as opposed to native non-SDK compilation where it always compiles the CCryptoBoringSSL base dependency first.

@jakepetroules, let me know if you can reproduce, particularly with other trunk Swift SDKs.

[finagolfin]

Now that a new Apr. 17 trunk snapshot was tagged, I'm able to reproduce all of the above with that prebuilt toolchain and SDK also:

> swiftly list
Installed release toolchains
----------------------------
Swift 6.3.1
Swift 6.3.0
Swift 6.2.4

Installed snapshot toolchains
-----------------------------
main-snapshot-2026-04-17 (in use) (default)
main-snapshot-2026-04-01
main-snapshot-2026-03-16

> ANDROID_NDK_HOME=/Users/finagolfin/swift/ndk-28c swift build --swift-sdk aarch64-unknown-linux-android28 --build-tests -j 1
Building for debugging...
error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line:     cd /Users/finagolfin/swift

/Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift:17:29: error: no such module 'CCryptoBoringSSL'
15 | @_exported import CryptoKit
16 | #else
17 | @_implementationOnly import CCryptoBoringSSL
   |                             `- error: no such module 'CCryptoBoringSSL'
18 | import CryptoBoringWrapper
19 | import Foundation
Failed frontend command:
/Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources/resource_bundle_accessor.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/AES-GCM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/BoringSSL/ChaChaPoly_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/ChaChaPoly.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/Cipher.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/AEADs/Nonces.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/ASN1.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Any.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1BitString.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Boolean.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Identifier.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Integer.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Null.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1OctetString.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Strings.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ArraySliceBigint.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/GeneralizedTime.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ObjectIdentifier.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/ECDSASignature.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/PEMDocument.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/PKCS8PrivateKey.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/SEC1PrivateKey.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/ASN1/SubjectPublicKeyInfo.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/CryptoKitErrors.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/BoringSSL/Digest_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/Digest.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/Digests.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/HashFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Digests/HashFunctions_SHA2.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-AEAD.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Ciphersuite.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KDF.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KexKeyDerivation.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-LabeledExtract.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Utils.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/DHKEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-KEM-Curve25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-NIST-EC-KEMs.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/HPKE-KEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/HPKE-Errors.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/HPKE.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-Context.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-KeySchedule.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/HPKE/Modes/HPKE-Modes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Insecure/Insecure.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Insecure/Insecure_HashFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/KEM/KEM.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/BoringSSL/ECDH_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/DH.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Agreement/ECDH.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Derivation/HKDF.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Wrapping/AESWrap.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Key\ Wrapping/BoringSSL/AESWrap_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/Ed25519_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/NISTCurvesKeys_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/X25519Keys_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/Curve25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/Ed25519Keys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/NISTCurvesKeys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/EC/X25519Keys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Keys/Symmetric/SymmetricKeys.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/HMAC/HMAC.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MACFunctions.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MessageAuthenticationCode.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/PRF/AES.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSASignature_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSA_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/BoringSSL/EdDSA_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/ECDSA.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/Ed25519.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Signatures/Signature.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/CryptoKitErrors_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/RNG_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/SafeCompare_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/BoringSSL/Zeroization_boring.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/PrettyBytes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/SafeCompare.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/SecureBytes.swift /Users/finagolfin/swift/swift-crypto/Sources/Crypto/Util/Zeroization.swift -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /Users/finagolfin/swift/ndk-28c/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -I /Users/finagolfin/swift/swift-crypto/.build/out/Products/Debug-android -module-cache-path /Users/finagolfin/swift/swift-crypto/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -D CRYPTO_IN_SWIFTPM -D CRYPTO_IN_SWIFTPM_FORCE_BUILD_API -D Xcode -serialize-debugging-options -enable-upcoming-feature MemberImportVisibility -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/lib/swift/host/plugins/testing\#/Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /Users/finagolfin/swift/swift-crypto/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/finagolfin/swift -resource-dir /Users/finagolfin/Library/org.swift.swiftpm/swift-sdks/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /Users/finagolfin/swift -Xcc -resource-dir -Xcc /Users/finagolfin/swift/ndk-28c/toolchains/llvm/prebuilt/darwin-x86_64/lib/clang/19 -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/swift-overrides.hmap -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Products/Debug-android/include -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources-normal/aarch64 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources/aarch64 -Xcc -I/Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Crypto -package-name swift_crypto -const-gather-protocols-file /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto_const_extract_protocols.json -in-process-plugin-server-path /Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Users/finagolfin/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/local/lib/swift/host/plugins -sysroot /Users/finagolfin/swift/ndk-28c/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -emit-module-doc-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftdoc -emit-module-source-info-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftsourceinfo -emit-objc-header-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-Swift.h -serialize-diagnostics-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.dia -emit-dependencies-path /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.d -parse-as-library -o /Users/finagolfin/swift/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftmodule

error: Build failed

I added the -j 1 flag to try and see if the issue was with target dependency calculation or how the build schedules them in parallel, and it appears to be the former. As before, simpler packages like Swift System work fine.

[finagolfin]

I just tried this with the Wasm SDK and am unable to reproduce:

> swift build --swift-sdk swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a_wasm
Building for debugging...
[100/100]
Build complete! (0.28 sec)

This is strange that swift-build treats the Android SDK differently in this regard.

[owenv]

based on circumstantial evidence I think it's probably a bug lowering .when(.android) conditions to platform filters. Will take a closer look soon

[owenv]

#1337

[owenv]

Resolved in the 4/27 nightly snapshot

[finagolfin]

Thanks, I confirmed that it is working with the latest Apr. 27 macOS toolchain and Android bundle. 👍

[finagolfin]

This appears to have regressed in trunk again, re-opening since the resulting broken build is identical to before. I don't see it in the latest 6.4 snapshots though, so possibly caused by #1514, which subsequently modified the triple used? Just guessing, as I'm not familiar with these swift-build internal triples.

[finagolfin]

I'm testing with the latest CI builds, since we haven't had a trunk tag in awhile. I first saw this with a trunk mac toolchain I built a couple days ago, and just reproduced on linux cross-compiling swift-crypto with this Aug. 1 snapshot toolchain and corresponding Android SDK bundle.

@jakepetroules or @owenv, if one of you have a quick fix because you know this code better, that would be great. Otherwise, this may have been broken for the last month, so we can always get it fixed in trunk in the coming weeks.

[finagolfin]

I can reproduce with the latest trunk snapshot tag also:

> ANDROID_NDK_HOME=/home/finagolfin/android-ndk-r30-beta2 ~/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/bin/swift build --swift-sdk swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a_android --triple aarch64-unknown-linux-android23
Building for debugging...
error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line:     cd /home/finagolfin

/home/finagolfin/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift:17:29: error: no such module 'CCryptoBoringSSL'
 15 | @_exported import CryptoKit
 16 | #else
 17 | @_implementationOnly import CCryptoBoringSSL
    |                             `- error: no such module 'CCryptoBoringSSL'
 18 | import CryptoBoringWrapper
 19 | #if canImport(FoundationEssentials)
Failed frontend command:
/home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/AES/GCM/AES-GCM.swift /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/AES/GCM/BoringSSL/AES-GCM_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/BoringSSL/ChaChaPoly_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/ChachaPoly/ChaChaPoly.swift /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/Cipher.swift /home/finagolfin/swift-crypto/Sources/Crypto/AEADs/Nonces.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/ASN1.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Any.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1BitString.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Boolean.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Identifier.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Integer.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Null.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1OctetString.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ASN1Strings.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ArraySliceBigint.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/GeneralizedTime.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/Basic\ ASN1\ Types/ObjectIdentifier.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/ECDSASignature.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/PEMDocument.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/PKCS8PrivateKey.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/SEC1PrivateKey.swift /home/finagolfin/swift-crypto/Sources/Crypto/ASN1/SubjectPublicKeyInfo.swift /home/finagolfin/swift-crypto/Sources/Crypto/CryptoError_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/CryptoKitErrors.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/BoringSSL/Digest_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/Digest.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/Digests.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/HashFunctions.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/HashFunctions_SHA2.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/HashFunctions_SHA3.swift /home/finagolfin/swift-crypto/Sources/Crypto/Digests/XKCP/Digest_xkcp.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-AEAD.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Ciphersuite.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KDF.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-KexKeyDerivation.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-LabeledExtract.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/HPKE-Utils.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/DHKEM.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-KEM-Curve25519.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/Conformances/HPKE-NIST-EC-KEMs.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Ciphersuite/KEM/HPKE-KEM.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/HPKE-Errors.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/HPKE.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-Context.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Key\ Schedule/HPKE-KeySchedule.swift /home/finagolfin/swift-crypto/Sources/Crypto/HPKE/Modes/HPKE-Modes.swift /home/finagolfin/swift-crypto/Sources/Crypto/Insecure/Insecure.swift /home/finagolfin/swift-crypto/Sources/Crypto/Insecure/Insecure_HashFunctions.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/BoringSSL/MLKEM_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/BoringSSL/MLKEM_wrapper.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/BoringSSL/XWing_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/KEM-Errors.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/KEM.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/MLKEM.swift /home/finagolfin/swift-crypto/Sources/Crypto/KEM/XWing.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Agreement/BoringSSL/ECDH_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Agreement/DH.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Agreement/ECDH.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Derivation/ANSIx963.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Derivation/HKDF.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Wrapping/AESWrap.swift /home/finagolfin/swift-crypto/Sources/Crypto/Key\ Wrapping/BoringSSL/AESWrap_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/Ed25519_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/NISTCurvesKeys_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/BoringSSL/X25519Keys_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/Curve25519.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/Ed25519Keys.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/NISTCurvesKeys.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/EC/X25519Keys.swift /home/finagolfin/swift-crypto/Sources/Crypto/Keys/Symmetric/SymmetricKeys.swift /home/finagolfin/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/HMAC/HMAC.swift /home/finagolfin/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MACFunctions.swift /home/finagolfin/swift-crypto/Sources/Crypto/Message\ Authentication\ Codes/MessageAuthenticationCode.swift /home/finagolfin/swift-crypto/Sources/Crypto/PRF/AES.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSASignature_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/BoringSSL/ECDSA_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/BoringSSL/EdDSA_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/BoringSSL/MLDSA_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/BoringSSL/MLDSA_wrapper.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/ECDSA.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/Ed25519.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/MLDSA.swift /home/finagolfin/swift-crypto/Sources/Crypto/Signatures/Signature.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/CryptoKitErrors_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/Optional+withUnsafeBytes_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/RNG_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/SafeCompare_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/Zeroization_boring.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/BoringSSL/_CryptoModuleAnchor.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/PrettyBytes.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/SafeCompare.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/SecureBytes.swift /home/finagolfin/swift-crypto/Sources/Crypto/Util/Zeroization.swift -target aarch64-unknown-linux-android23 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /home/finagolfin/android-ndk-r30-beta2/toolchains/llvm/prebuilt/linux-x86_64/sysroot -sysroot /home/finagolfin/android-ndk-r30-beta2/toolchains/llvm/prebuilt/linux-x86_64/sysroot -I /home/finagolfin/swift-crypto/.build/out/Products/Debug-android-aarch64 -module-cache-path /home/finagolfin/swift-crypto/.build/out/ModuleCache.noindex -validate-clang-modules-once -clang-build-session-file /home/finagolfin/swift-crypto/.build/out/ModuleCache.noindex/Session.modulevalidation -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 6 -Onone -ipi-clang-module Crypto -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D CRYPTO_IN_SWIFTPM -D CRYPTO_IN_SWIFTPM_FORCE_BUILD_API -D Xcode -serialize-debugging-options -enable-upcoming-feature MemberImportVisibility -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/lib/swift/host/plugins/testing\#/home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/bin/swift-plugin-server -Xcc -working-directory -Xcc /home/finagolfin -resource-dir /home/finagolfin/.swiftpm/swift-sdks/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /home/finagolfin -Xcc -resource-dir -Xcc /home/finagolfin/android-ndk-r30-beta2/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/21 -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/home/finagolfin/swift-crypto/.build/out/Products/Debug-android-aarch64/include -Xcc -I/home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/DerivedSources-normal/aarch64 -Xcc -I/home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/DerivedSources/aarch64 -Xcc -I/home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Crypto -package-name swift_crypto -const-gather-protocols-file /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Crypto_const_extract_protocols.json -in-process-plugin-server-path /home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/lib/swift/host/plugins -plugin-path /home/finagolfin/swift-DEVELOPMENT-SNAPSHOT-2026-08-08-a-ubi9/usr/local/lib/swift/host/plugins -emit-module-doc-path /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftdoc -emit-module-source-info-path /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftsourceinfo -emit-objc-header-path /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Crypto-Swift.h -serialize-diagnostics-path /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.dia -emit-dependencies-path /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Crypto-primary-emit-module.d -parse-as-library -o /home/finagolfin/swift-crypto/.build/out/Intermediates.noindex/swift-crypto.build/Debug-android-aarch64/Crypto-t.build/Objects-normal/aarch64/Modules/Crypto.swiftmodule

[owenv]

I'll try to take a look in the next day or two, I don't know exactly what would have broken this