swift - swift build 无法写入构建文件

Question

在任何包上运行swift build都会失败，并显示以下输出：

[1/1] Compiling Swift Module 'SynchronousNetworking' (3 sources)
<unknown>:0: error: failed writing record '_pthread_rwlockattr_t.h-15446MBE1AZWP': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/WP/_pthread_rwlockattr_t.h-15446MBE1AZWP-temp-f543b829
<unknown>:0: error: failed writing record 'uuid.h-3RIUEBNVXME9Q': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/9Q/uuid.h-3RIUEBNVXME9Q-temp-27e1a4c7
<unknown>:0: error: failed writing record '_u_int16_t.h-34I7NDL9MUDL': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/DL/_u_int16_t.h-34I7NDL9MUDL-temp-be9fdd22
<unknown>:0: error: failed writing record 'fmaintrin.h-4B9WQ55UKX7V': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/7V/fmaintrin.h-4B9WQ55UKX7V-temp-f26ea012
<unknown>:0: error: failed writing record 'CTTextTab.h-X47FKBQ1RXGU': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/GU/CTTextTab.h-X47FKBQ1RXGU-temp-d4fc8399
<unknown>:0: error: failed writing record 'FoundationOverlayShims.h-2XZL6DVCNMY82': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/82/FoundationOverlayShims.h-2XZL6DVCNMY82-temp-6d359744
<unknown>:0: error: failed writing record '_uintptr_t.h-1DR8717NVFXXK': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/XK/_uintptr_t.h-1DR8717NVFXXK-temp-8085ec94
<unknown>:0: error: failed writing record '_ctype.h-B4CEWHC0EQSN': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/SN/_ctype.h-B4CEWHC0EQSN-temp-f0a309d3
<unknown>:0: error: failed writing record 'poll.h-1QKTQ62SG1WMU': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/MU/poll.h-1QKTQ62SG1WMU-temp-d98445b7
<unknown>:0: error: writing index record file: failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/RT/CoreGraphics.swiftmodule-KUR2MKSFKTRT-temp-3196c465
<unknown>:0: error: failed writing record 'IOReturn.h-1M1CBYHRWHC0P': failed to create temporary file: /private/var/tmp/ankafs.0/.build/x86_64-apple-macosx/debug/index/store/v5/records/0P/IOReturn.h-1M1CBYHRWHC0P-temp-f788a88d

ls项目目录里面的输出是：

drwxrwxrwx  11 anka  staff   352 Apr 25 02:21 .
drwxrwxrwx   4 root  wheel   128 Apr 25 01:00 ..
drwxrwxrwx   3 anka  staff    96 Apr 23 04:58 .circleci
drwxrwxrwx  12 anka  staff   384 Apr 23 04:58 .git
-rwxrwxrwx   1 anka  staff    41 Apr 23 04:58 .gitignore
-rwxrwxrwx   1 anka  staff  1075 Apr 23 04:58 LICENSE
-rwxrwxrwx   1 anka  staff   505 Apr 23 04:58 Package.swift
-rwxrwxrwx   1 anka  staff   720 Apr 23 04:58 README.md
drwxrwxrwx   3 anka  staff    96 Apr 23 04:58 Sources
drwxrwxrwx   4 anka  staff   128 Apr 23 04:58 Tests
-rwxrwxrwx   1 anka  staff   475 Apr 23 04:58 build.sh

这表明它rwx适用于所有用户组。

还值得注意的是，只有第一个swift build导致此错误。随后的构建成功完成，直到.build目录被删除，然后它再次发生，每次都因一组不同的文件而失败。

build 命令在anka VM 内运行，但我猜这只是权限问题，与它在 VM 内运行的事实无关。

标签： swift