Swift Package Index

Build Information

Failed to build UniYAML, reference 0.12.0 (1628bc), with Swift 6.2 for macOS (SPM) on 17 Jun 2025 20:31:26 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 4.64.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/seznam/swift-uniyaml.git
Reference: 0.12.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/seznam/swift-uniyaml
 * tag               0.12.0     -> FETCH_HEAD
HEAD is now at 1628bc6 Update README.md.
Cloned https://github.com/seznam/swift-uniyaml.git
Revision (git rev-parse @):
1628bc64f558f0f43c3126c5da1b5e99ecebd129
SUCCESS checkout https://github.com/seznam/swift-uniyaml.git at 0.12.0
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/seznam/swift-uniyaml.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-1EA4D86E10B52AF.txt
[3/6] Compiling UniYAML Encoder.swift
[4/6] Compiling UniYAML YAML.swift
/Users/admin/builder/spi-builder-workspace/Sources/UniYAML/YAML.swift:218:12: error: cannot assign to property: 'key' is a 'let' constant
 34 | 	let indent: Int
 35 | 	var type: YAMLType
 36 | 	let key: String?
    |  `- note: change 'let' to 'var' to make it mutable
 37 | 	let tag: String?
 38 | 	var value: Any?
    :
216 | 				return nil
217 | 			}
218 | 			obj[k]!.key = k
    |            `- error: cannot assign to property: 'key' is a 'let' constant
219 | 		}
220 | 		indent = 0
[5/6] Emitting module UniYAML
[6/6] Compiling UniYAML Decoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/UniYAML/Decoder.swift:58:9: warning: variable 'anchor' was written to, but never read
 56 | 				}
 57 | 				var key: String?
 58 | 				var anchor: String?
    |         `- warning: variable 'anchor' was written to, but never read
 59 | 				var tag: String?
 60 | 				var value: String?
BUILD FAILURE 6.2 macosSpm