Build Information
Successful build of SMTPKitten, reference main (b10493), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 06:37:02 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Joannis/SMTPKitten.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Joannis/SMTPKitten
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at b10493f Re-create the connection once it closes
Cloned https://github.com/Joannis/SMTPKitten.git
Revision (git rev-parse @):
b10493fe3d51c7bd53c589db1a7a9c0483e490f6
SUCCESS checkout https://github.com/Joannis/SMTPKitten.git at main
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.4
Building package at path: $PWD
https://github.com/Joannis/SMTPKitten.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 1342]
[Planning deferred tasks]
[Constructing 1340 / 3338]
[85 / 946] NIOSSL
[258 / 946] swift-nio_NIOPosix
[262 / 946]
[275 / 953] NIOConcurrencyHelpers
[280 / 962] CNIOWindows
[285 / 986]
[289 / 986] CNIOLinux
[296 / 1020] CNIOLinux
[304 / 1060]
[317 / 1060]
[323 / 1060] CNIOBoringSSL
[334 / 1060] CNIOBoringSSL
[336 / 1060]
[344 / 1060]
[349 / 1060] CNIOBoringSSL
[355 / 1060] CNIOBoringSSL
[356 / 1060] CNIOBoringSSL
[361 / 1060] CNIOBoringSSL
[366 / 1060] Logging
[377 / 1060] CNIOBoringSSL
[390 / 1060] NIOConcurrencyHelpers
[399 / 1060] CNIOBoringSSL
[403 / 1060] Logging
[411 / 1060] CNIOBoringSSL
[416 / 1060] CNIOBoringSSL
[422 / 1060] CNIOBoringSSL
[426 / 1060] CNIOBoringSSL
[432 / 1060] CNIOBoringSSL
[434 / 1060] CNIOBoringSSL
[436 / 1060] CNIOBoringSSL
[438 / 1060] CNIOBoringSSL
[444 / 1060] CNIOBoringSSL
[446 / 1060] CNIOBoringSSL
[449 / 1060] CNIOBoringSSL
[454 / 1060] CNIOBoringSSL
[455 / 1060] CNIOBoringSSL
[460 / 1060] CNIOBoringSSL
[461 / 1060] CNIOBoringSSL
[467 / 1060] CNIOBoringSSL
[470 / 1060] CNIOBoringSSL
[471 / 1060] CNIOBoringSSL
[475 / 1060] CNIOBoringSSL
[478 / 1060] CNIOBoringSSL
[480 / 1060] CNIOBoringSSL
[483 / 1060] CNIOBoringSSL
[484 / 1060] CNIOBoringSSL
[485 / 1060] CNIOBoringSSL
[491 / 1060] CNIOBoringSSL
[497 / 1060] CNIOBoringSSL
[505 / 1060] CNIOBoringSSL
[517 / 1060] CNIOBoringSSL
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[526 / 1060] CNIOBoringSSL
[528 / 1060] CNIOBoringSSL
[533 / 1060] CNIOBoringSSL
[537 / 1060] CNIOBoringSSL
[543 / 1060] CNIOBoringSSL
[545 / 1060] CNIOBoringSSL
[547 / 1060] CNIOBoringSSL
[550 / 1060] CNIOBoringSSL
[553 / 1060] CNIOBoringSSL
[556 / 1060] CNIOBoringSSL
[559 / 1060] CNIOBoringSSL
[560 / 1060] CNIOBoringSSL
[564 / 1060] CNIOBoringSSL
[568 / 1060] CNIOBoringSSL
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[579 / 1060] CNIOBoringSSL
[588 / 1060] CNIOBoringSSL
[592 / 1060] CNIOBoringSSL
[594 / 1060] CNIOBoringSSL
[600 / 1060] CNIOBoringSSL
[604 / 1060] CNIOBoringSSL
[606 / 1060] CNIOBoringSSL
[614 / 1060] CNIOBoringSSL
[623 / 1060] CNIOBoringSSL
[628 / 1060] CNIOBoringSSL
[630 / 1060] CNIOBoringSSL
[632 / 1060] CNIOBoringSSL
[640 / 1060] CNIOBoringSSL
[641 / 1060] CNIOBoringSSL
[642 / 1060] CNIOBoringSSL
[649 / 1060] CNIOBoringSSL
[651 / 1060] CNIOBoringSSL
[655 / 1060] CNIOBoringSSL
[659 / 1060] CNIOBoringSSL
[660 / 1060] CNIOBoringSSL
[665 / 1060] CNIOBoringSSL
[666 / 1060] CNIOBoringSSL
[668 / 1060] CNIOBoringSSL
[671 / 1060] CNIOBoringSSL
[675 / 1060] CNIOBoringSSL
[680 / 1060] CNIOBoringSSL
[684 / 1060] CNIOBoringSSL
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[703 / 1060] CNIOBoringSSL
[710 / 1060] CNIOBoringSSL
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[755 / 1060] CNIOBoringSSL
[756 / 1060] CNIOBoringSSL
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[763 / 1060] CNIOBoringSSL
[765 / 1060] CNIOBoringSSL
[767 / 1060]
[780 / 1060]
[794 / 1060] NIOConcurrencyHelpers
[801 / 1060] _AtomicsShims
[806 / 1060] CNIOPosix
[808 / 1060] NIOConcurrencyHelpers-product
[809 / 1060] NIOConcurrencyHelpers-product
[813 / 1060] Logging
[815 / 1060] _NIOBase64
[821 / 1060] _NIODataStructures
[829 / 1060] InternalCollectionsUtilities
[835 / 1060] UnixSignals
[847 / 1060] BitCollections
[855 / 1062]
[864 / 1078]
[873 / 1078]
[880 / 1078] ConcurrencyHelpers
[887 / 1083] HashTreeCollections
[891 / 1090] HeapModule
[896 / 1120]
[898 / 1131] HeapModule
[900 / 1131] HeapModule
[909 / 1131] _RopeModule
[912 / 1131] CNIOBoringSSLShims
[914 / 1131] _RopeModule
[915 / 1131] UnixSignals
[918 / 1131] _RopeModule
[919 / 1131] UnixSignals
[932 / 1131] UnixSignals
[934 / 1131] OrderedCollections
[937 / 1131] OrderedCollections
[944 / 1131] OrderedCollections
[947 / 1131] HashTreeCollections
[957 / 1131] OrderedCollections
[960 / 1131] HeapModule
[965 / 1131] HashTreeCollections
[969 / 1131] HeapModule
[971 / 1131] _RopeModule
[975 / 1131] ConcurrencyHelpers
[979 / 1132] OrderedCollections
[983 / 1144] OrderedCollections
[988 / 1155] ContainersPreview
[996 / 1155] DequeModule
[1001 / 1155] CNIODarwin
[1006 / 1155] ContainersPreview
[1012 / 1155] HashTreeCollections
[1019 / 1155] BitCollections
[1022 / 1156]
[1028 / 1167] DequeModule
[1029 / 1167] DequeModule
[1031 / 1167] DequeModule
[1034 / 1167] DequeModule
[1036 / 1167]
[1036 / 1167] DequeModule
[1036 / 1167] CNIOAtomics
[1036 / 1167] DequeModule
[1053 / 1176] Collections
[1061 / 1176] AsyncAlgorithms
[1070 / 1187] AsyncAlgorithms
[1071 / 1199]
[1073 / 1199] NIOCore
[1075 / 1199] NIOCore
[1077 / 1199] NIOCore
[1079 / 1199] NIOCore
[1080 / 1199] NIOCore
[1083 / 1199] AsyncAlgorithms
[1089 / 1199] NIOCore
[1090 / 1199] AsyncAlgorithms-product
[1092 / 1200] CNIOAtomics
[1095 / 1210] ServiceLifecycle
[1097 / 1210] ServiceLifecycle
[1101 / 1210] ServiceLifecycle
[1111 / 1210] ServiceLifecycle
[1111 / 1210] NIOCore
[1111 / 1210] ServiceLifecycle
[1113 / 1210] NIOCore
[1124 / 1213] NIOEmbedded
[1128 / 1217] NIOFoundationEssentialsCompat
[1143 / 1249] NIOEmbedded
[1146 / 1249]
[1149 / 1249]
[1151 / 1249]
[1153 / 1249]
[1154 / 1249]
[1165 / 1249] NIOFoundationEssentialsCompat
[1166 / 1249] NIOPosix
[1169 / 1249] NIOFoundationEssentialsCompat
[1174 / 1249] NIOPosix
[1181 / 1250] NIOFoundationEssentialsCompat
[1183 / 1250] NIO
[1191 / 1252] NIOPosix
[1195 / 1255] NIOTLS
[1205 / 1273] NIOHTTP1
[1215 / 1277] NIOTLS
[1216 / 1277] NIOTLS-product
[1227 / 1277] NIOHTTP1
[1229 / 1277] NIOFoundationCompat
[1239 / 1280] MultipartKit
[1240 / 1280] NIOHTTP1
[1247 / 1291] NIOExtras
[1252 / 1345]
[1255 / 1345]
[1262 / 1345]
[1271 / 1345]
[1280 / 1345] NIOSSL
[1282 / 1345] NIOSSL
[1283 / 1345] NIOSSL
[1284 / 1345]
[1287 / 1345]
[1298 / 1345] NIOSSL
[1303 / 1345] NIOFoundationCompat
[1307 / 1345] NIOSSL
[1309 / 1345]
[1312 / 1345] NIOSSL
[1314 / 1345]
[1316 / 1345]
[1317 / 1345]
[1328 / 1345] MultipartKit
[1335 / 1346] MultipartKit
[1348 / 1357] SMTPKitten
[1354 / 1357] SMTPKitten
[1357 / 1357] SMTPKitten-product
Build complete! (42.12 sec)
Fetching https://github.com/apple/swift-nio-ssl.git
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/apple/swift-nio-extras.git
Fetching https://github.com/vapor/multipart-kit.git
[1/6278] Fetching multipart-kit
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[534/31876] Fetching multipart-kit, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl
[13095/117949] Fetching multipart-kit, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio
Fetched https://github.com/apple/swift-nio-ssl.git (2.42s)
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Fetched https://github.com/swift-server/swift-service-lifecycle.git (15.72s)
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Fetched https://github.com/vapor/multipart-kit.git (15.72s)
Computing version for https://github.com/vapor/multipart-kit.git
Computed https://github.com/vapor/multipart-kit.git at 4.7.1 (16.36s)
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Fetched https://github.com/apple/swift-collections.git (2.96s)
Computing version for https://github.com/swift-server/swift-service-lifecycle.git
Computed https://github.com/swift-server/swift-service-lifecycle.git at 2.12.0 (3.54s)
Fetching https://github.com/apple/swift-async-algorithms.git
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Fetched https://github.com/apple/swift-async-algorithms.git (2.31s)
Fetched https://github.com/apple/swift-log.git (2.31s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.5 (2.97s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.6.0 (0.65s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.57s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.80s)
Fetching https://github.com/apple/swift-atomics.git
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Computed https://github.com/apple/swift-nio-extras.git at 1.35.1 (2.73s)
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Fetching https://github.com/apple/swift-nio-http2.git
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Fetched https://github.com/apple/swift-certificates.git (1.43s)
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Fetched https://github.com/apple/swift-nio-http2.git (2.17s)
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Fetched https://github.com/apple/swift-algorithms.git (2.17s)
Fetched https://github.com/apple/swift-asn1.git (2.17s)
Fetched https://github.com/apple/swift-http-types.git (2.17s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (4.35s)
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Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.1.1 (1.86s)
Computing version for https://github.com/apple/swift-http-structured-headers.git
Computed https://github.com/apple/swift-http-structured-headers.git at 1.7.0 (0.54s)
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Computed https://github.com/apple/swift-http-types.git at 1.8.0 (0.56s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.3 (0.65s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 2.37.5 (0.59s)
Computing version for https://github.com/apple/swift-certificates.git
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Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.5.2 (3.46s)
Computing version for https://github.com/apple/swift-nio-http2.git
Computed https://github.com/apple/swift-nio-http2.git at 1.46.0 (0.59s)
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.3
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.37.5
Creating working copy for https://github.com/apple/swift-nio-extras.git
Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.35.1
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.6.0
Creating working copy for https://github.com/vapor/multipart-kit.git
Working copy of https://github.com/vapor/multipart-kit.git resolved at 4.7.1
Creating working copy for https://github.com/apple/swift-certificates.git
Working copy of https://github.com/apple/swift-certificates.git resolved at 1.20.0
Creating working copy for https://github.com/apple/swift-http-types.git
Working copy of https://github.com/apple/swift-http-types.git resolved at 1.8.0
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.5.2
Creating working copy for https://github.com/apple/swift-http-structured-headers.git
Working copy of https://github.com/apple/swift-http-structured-headers.git resolved at 1.7.0
Creating working copy for https://github.com/swift-server/swift-service-lifecycle.git
Working copy of https://github.com/swift-server/swift-service-lifecycle.git resolved at 2.12.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.8.1
Creating working copy for https://github.com/apple/swift-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.5
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Creating working copy for https://github.com/apple/swift-nio-http2.git
Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.46.0
/Users/admin/builder/spi-builder-workspace/Sources/SMTPKitten/Connection/SMTPConnection.swift:204:47: [1;33mwarning: [1;39mconformance of 'NIOSSLHandler' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode[0;0m
[0;36m202 |[0;0m let sslHandler = try NIOSSLClientHandler(context: sslContext, serverHostname: hostname)
[0;36m203 |[0;0m
[0;36m204 |[0;0m try await channel.pipeline.addHandler(sslHandler, position: .first).get()
[0;36m|[0;0m `- [1;33mwarning: [1;39mconformance of 'NIOSSLHandler' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode[0;0m
[0;36m205 |[0;0m }
[0;36m206 |[0;0m }
NIOSSL.NIOSSLHandler:2:11: [1;39mnote: [1;39mconformance of 'NIOSSLHandler' to 'Sendable' has been explicitly marked unavailable here[0;0m
[0;36m1 |[0;0m @available(*, unavailable)
[0;36m2 |[0;0m extension NIOSSLHandler : Sendable {
[0;36m|[0;0m `- [1;39mnote: [1;39mconformance of 'NIOSSLHandler' to 'Sendable' has been explicitly marked unavailable here[0;0m
[0;36m3 |[0;0m }
Build complete.
{
"dependencies" : [
{
"identity" : "multipart-kit",
"requirement" : {
"range" : [
{
"lower_bound" : "4.7.0",
"upper_bound" : "5.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/vapor/multipart-kit.git"
},
{
"identity" : "swift-service-lifecycle",
"requirement" : {
"range" : [
{
"lower_bound" : "2.6.3",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/swift-server/swift-service-lifecycle.git"
},
{
"identity" : "swift-nio",
"requirement" : {
"range" : [
{
"lower_bound" : "2.81.0",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-nio.git"
},
{
"identity" : "swift-nio-extras",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-nio-extras.git"
},
{
"identity" : "swift-nio-ssl",
"requirement" : {
"range" : [
{
"lower_bound" : "2.0.0",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-nio-ssl.git"
}
],
"manifest_display_name" : "SMTPKitten",
"name" : "SMTPKitten",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "14.0"
}
],
"products" : [
{
"name" : "SMTPKitten",
"targets" : [
"SMTPKitten"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SMTPKittenTests",
"module_type" : "SwiftTarget",
"name" : "SMTPKittenTests",
"path" : "Tests/SMTPKittenTests",
"sources" : [
"SMTPKittenTests.swift"
],
"target_dependencies" : [
"SMTPKitten"
],
"type" : "test"
},
{
"c99name" : "SMTPKitten",
"module_type" : "SwiftTarget",
"name" : "SMTPKitten",
"path" : "Sources/SMTPKitten",
"product_dependencies" : [
"MultipartKit",
"ServiceLifecycle",
"NIOCore",
"NIOPosix",
"NIOFoundationCompat",
"NIOExtras",
"NIOSSL"
],
"product_memberships" : [
"SMTPKitten"
],
"sources" : [
"Connection/Errors.swift",
"Connection/Helpers.swift",
"Connection/ReplyDecoder.swift",
"Connection/Request+Reply.swift",
"Connection/SMTPCommandsHelper.swift",
"Connection/SMTPConnection.swift",
"Connection/SMTPSSLMode.swift",
"ConnectionPool/SMTPClient.swift",
"SMTPClient+Commands/+handshake.swift",
"SMTPClient+Commands/+login.swift",
"SMTPClient+Commands/+sendMail.swift",
"Types/Mail/+Attachment.swift",
"Types/Mail/+Content.swift",
"Types/Mail/+Disposition.swift",
"Types/Mail/+build.swift",
"Types/Mail/+serialization.swift",
"Types/Mail/Mail.swift",
"Types/Mail/MailBodyBuilder.swift",
"Types/MailUser.swift"
],
"type" : "library"
}
],
"tools_version" : "5.10"
}
Done.