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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of swift-json, reference master (00bc37), with Swift 5.10 for macOS (SPM) on 23 Apr 2025 17:47:58 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.60.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tayloraswift/swift-json.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tayloraswift/swift-json
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 00bc37b Merge pull request #88 from rgoldberg/87-swift-5.9
Cloned https://github.com/tayloraswift/swift-json.git
Revision (git rev-parse @):
00bc37b8f94aeff7b811efa8a1ca933fc63069b2
SUCCESS checkout https://github.com/tayloraswift/swift-json.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/tayloraswift/swift-json.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/27] Write sources
[14/27] Write swift-version-33747A42983211AE.txt
[16/42] Compiling JSONAST JSON.Number.Base10.Inverse.swift
[17/42] Compiling JSONAST JSON.IntegerOverflowError.swift
[18/42] Compiling JSONAST JSON.Key.swift
[19/42] Compiling JSONAST JSON.Array.swift
[20/42] Compiling JSONAST JSON.EscapeCode.swift
[21/42] Emitting module JSONAST
[22/42] Compiling JSONAST JSON.Literal.swift
[23/43] Compiling JSONAST JSON.TypecastError.swift
[24/43] Compiling TraceableErrors TraceableError.swift
[25/43] Emitting module TraceableErrors
[26/43] Compiling TraceableErrors NamedError.swift
[27/43] Compiling JSONAST JSON.Object.swift
[28/43] Compiling JSONAST JSON.Number.Base10.swift
[29/43] Compiling JSONAST JSON.Number.swift
[30/43] Compiling JSONAST JSON.Node.swift
[31/43] Compiling JSONAST JSON.swift
[32/94] Compiling JSONEncoding Array (ext).swift
[33/94] Compiling JSONEncoding ArraySlice (ext).swift
[34/94] Compiling JSONEncoding Bool (ext).swift
[35/96] Compiling JSONEncoding Int32 (ext).swift
[36/96] Compiling JSONEncoding Int64 (ext).swift
[37/96] Compiling JSONEncoding Int8 (ext).swift
[41/99] Compiling JSONEncoding UInt64 (ext).swift
[42/99] Compiling JSONEncoding UInt8 (ext).swift
[43/99] Compiling JSONEncoding JSONStringEncodable.swift
[44/99] Compiling JSONEncoding StaticString (ext).swift
[45/99] Compiling JSONEncoding Unicode.Scalar (ext).swift
[46/99] Compiling JSONEncoding JSON.Literal (ext).swift
[47/99] Compiling JSONEncoding String (ext).swift
[48/99] Compiling JSONEncoding Substring (ext).swift
[49/99] Emitting module JSONEncoding
[50/99] Compiling JSONEncoding UInt (ext).swift
[51/99] Compiling JSONEncoding UInt16 (ext).swift
[52/99] Compiling JSONEncoding UInt32 (ext).swift
[53/99] Compiling JSONEncoding JSONEncodable.swift
[54/99] Compiling JSONEncoding JSONObjectEncodable.swift
[62/99] Compiling JSONEncoding JSON.ArrayEncoder.Index.swift
[63/99] Compiling JSONEncoding JSON.ArrayEncoder.swift
[64/99] Compiling JSONEncoding JSON.InlineEncoder.swift
[66/99] Compiling Grammar UnicodeEncoding.Newline.swift
[67/99] Compiling Grammar UnicodeEncoding.swift
[68/99] Compiling JSONEncoding Character (ext).swift
[69/99] Compiling JSONEncoding Int (ext).swift
[70/99] Compiling JSONEncoding Int16 (ext).swift
[71/99] Compiling JSONEncoding Never (ext).swift
[72/99] Compiling JSONEncoding Optional (ext).swift
[73/99] Compiling JSONEncoding exports.swift
[85/99] Emitting module Grammar
[88/156] Emitting module JSONParsing
[89/158] Compiling JSONParsing JSON.WhitespaceRule.swift
[90/158] Compiling JSONParsing exports.swift
[91/158] Compiling JSONDecoding JSON.Object (ext).swift
[92/158] Compiling JSONDecoding JSONDecodable.swift
[93/158] Compiling JSONDecoding JSONObjectDecodable.swift
[94/158] Compiling JSONDecoding JSONStringDecodable.swift
[95/161] Compiling JSONDecoding Int16 (ext).swift
[96/161] Compiling JSONDecoding Int32 (ext).swift
[97/161] Compiling JSONDecoding Int64 (ext).swift
[98/161] Compiling JSONDecoding Int8 (ext).swift
[99/161] Compiling JSONDecoding Double (ext).swift
[100/161] Compiling JSONDecoding Float (ext).swift
[101/161] Compiling JSONDecoding Float80 (ext).swift
[102/161] Compiling JSONDecoding Int (ext).swift
[103/161] Compiling JSONDecoding Set (ext).swift
[104/161] Compiling JSONParsing JSON.Object (ext).swift
[105/161] Compiling JSONDecoding UInt (ext).swift
[106/161] Compiling JSONDecoding UInt16 (ext).swift
[107/161] Compiling JSONDecoding Array (ext).swift
[108/161] Compiling JSONDecoding Bool (ext).swift
[109/161] Compiling JSONDecoding Character (ext).swift
[110/161] Compiling JSONDecoding Dictionary (ext).swift
[113/161] Compiling JSONDecoding UInt32 (ext).swift
[114/161] Compiling JSONParsing JSON.StringRule.CodeUnit.swift
[115/161] Compiling JSONParsing JSON.StringRule.EscapeSequence.swift
[117/161] Emitting module JSONDecoding
[118/161] Compiling JSONDecoding JSON.ArrayShape.swift
[119/161] Compiling JSONDecoding JSON.ArrayShapeCriteria.swift
[120/161] Compiling JSONDecoding JSON.ArrayShapeError.swift
[121/161] Compiling JSONDecoding JSON.DecodingError.swift
[122/161] Compiling JSONDecoding JSON.FieldDecoder.swift
[123/161] Compiling JSONDecoding JSON.OptionalDecoder.swift
[124/161] Compiling JSONDecoding JSON.TraceableDecoder.swift
[125/161] Compiling JSONDecoding JSON.Array (ext).swift
[127/161] Compiling JSONDecoding JSON.ObjectKeyError.swift
[128/161] Compiling JSONDecoding JSON.SingleKeyError.swift
[129/161] Compiling JSONDecoding JSON.ValueError.swift
[130/161] Compiling JSONDecoding Never (ext).swift
[131/161] Compiling JSONDecoding Optional (ext).swift
[132/161] Compiling JSONDecoding exports.swift
[150/173] Compiling JSON exports.swift
[151/173] Compiling JSON JSON (ext).swift
[152/173] Emitting module JSON
[153/173] Compiling JSONLegacy exports.swift
[154/173] Compiling JSONLegacy DecodingError (ext).swift
[155/173] Compiling JSONLegacy JSON.SingleValueDecoder.swift
[156/173] Compiling JSONLegacy JSON.UnkeyedDecoder.Index.swift
[157/173] Compiling JSONLegacy JSON.UnkeyedDecoder.swift
[158/173] Compiling JSONLegacy JSON.Node (ext).swift
[159/173] Compiling JSONLegacy JSON.KeyedDecoder.Super.swift
[160/173] Emitting module JSONLegacy
[161/173] Compiling JSONLegacy JSON.KeyedDecoder.swift
[162/185] Emitting module ParsingErrors
[163/185] Compiling ParsingErrors ParsingErrors.swift
[164/185] Emitting module Parsing
[165/185] Compiling Parsing Parsing.swift
[165/185] Write Objects.LinkFileList
[167/185] Emitting module EncodingArrays
[168/185] Compiling EncodingArrays EncodingArrays.swift
[168/185] Write Objects.LinkFileList
[170/185] Emitting module DecodingArrays
[171/185] Compiling DecodingArrays DecodingArrays.swift
[172/185] Emitting module DecodingWithCodable
[173/185] Compiling DecodingWithCodable DecodingWithCodable.swift
[173/185] Write Objects.LinkFileList
[175/185] Emitting module DecodingObjects
[176/185] Compiling DecodingObjects DecodingObjects.swift
[176/185] Write Objects.LinkFileList
[179/185] Linking EncodingArrays
[180/185] Linking DecodingObjects
[180/185] Linking DecodingArrays
[182/185] Linking DecodingWithCodable
[183/185] Linking Parsing
[184/185] Linking ParsingErrors
Build complete! (5.60s)
Fetching https://github.com/tayloraswift/swift-grammar
[1/749] Fetching swift-grammar
Fetched https://github.com/tayloraswift/swift-grammar from cache (1.14s)
Computing version for https://github.com/tayloraswift/swift-grammar
Computed https://github.com/tayloraswift/swift-grammar at 0.5.0 (0.36s)
Creating working copy for https://github.com/tayloraswift/swift-grammar
Working copy of https://github.com/tayloraswift/swift-grammar resolved at 0.5.0
Build complete.
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Done.