Build Logs

1##################################

2Clonning https://github.com/typelevel/log4cats.git into /build/repo using revision v2.8.0-RC1

3##################################

4Note: switching to '642b6a638713b5110d88325c509bad2b22be67c8'.

6You are in 'detached HEAD' state. You can look around, make experimental

7changes and commit them, and you can discard any commits you make in this

8state without impacting any branches by switching back to a branch.

10If you want to create a new branch to retain commits you create, you may

11do so (now or later) by using -c with the switch command. Example:

13 git switch -c <new-branch-name>

15Or undo this operation with:

17 git switch -

19Turn off this advice by setting config variable advice.detachedHead to false

21Would override fixed Scala version: 3.3.6

22Using target Scala version for migration: 3.7.4

23Migrating project for -source:3.4 using Scala 3.7.4

24----

25Preparing build for 3.7.4

26Would try to apply common scalacOption (best-effort, sbt/mill only):

27Append: -rewrite,REQUIRE:-source:3.4-migration

28Remove: -indent,-no-indent,-new-syntax,,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

30Try apply source patch:

31Path: build.sbt

32Pattern: val Scala3 = "3.3.6"

33Replacement: val Scala3 = "3.7.4"

34Starting compilation server

35Compiling project (Scala 3.7.3, JVM (17))

36Compiled project (Scala 3.7.3, JVM (17))

37Successfully applied pattern 'val Scala3 = "3.3.6"' in build.sbt

38----

39Starting build for 3.7.4

40Execute tests: false

41sbt project found:

42No prepare script found for project typelevel/log4cats

43##################################

44Scala version: 3.7.4

45Targets: org.typelevel%log4cats-core org.typelevel%log4cats-noop org.typelevel%log4cats-slf4j org.typelevel%log4cats-testing

46Project projectConfig: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"compile-only","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}

47##################################

48Using extra scalacOptions: -rewrite,REQUIRE:-source:3.4-migration

49Filtering out scalacOptions: -indent,-no-indent,-new-syntax,,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

50[sbt_options] declare -a sbt_options=()

51[process_args] java_version = '17'

52[copyRt] java9_rt = '/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_8/rt.jar'

53# Executing command line:

54java

55-Dfile.encoding=UTF-8

56-Dfile.encoding=UTF-8

57-Xms1G

58-Xmx6G

59-Xss8m

60-XX:ReservedCodeCacheSize=512m

61-XX:+UseG1GC

62-Dcommunitybuild.scala=3.7.4

63-Dcommunitybuild.project.dependencies.add=

64-Xmx7G

65-Xms4G

66-Xss8M

67-Dsbt.script=/root/.sdkman/candidates/sbt/current/bin/sbt

68-Dscala.ext.dirs=/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_8

69-jar

70/root/.sdkman/candidates/sbt/1.11.5/bin/sbt-launch.jar

71"setCrossScalaVersions 3.7.4"

72"++3.7.4 -v"

73"mapScalacOptions "-rewrite,REQUIRE:-source:3.4-migration,-Wconf:msg=can be rewritten automatically under:s" "-indent,-no-indent,-new-syntax,,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e""

74"set every credentials := Nil"

75"excludeLibraryDependency com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}"

76"removeScalacOptionsStartingWith -P:wartremover"

78moduleMappings

79"runBuild 3.7.4 """{"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"compile-only","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}""" org.typelevel%log4cats-core org.typelevel%log4cats-noop org.typelevel%log4cats-slf4j org.typelevel%log4cats-testing"

81[info] welcome to sbt 1.11.5 (Eclipse Adoptium Java 17.0.8)

82[info] loading settings for project repo-build from akka.sbt, plugins.sbt...

83[info] loading project definition from /build/repo/project

84[info] compiling 2 Scala sources to /build/repo/project/target/scala-2.12/sbt-1.0/classes ...

85[info] Non-compiled module 'compiler-bridge_2.12' for Scala 2.12.20. Compiling...

86[info] Compilation completed in 8.836s.

87[info] done compiling

88[info] loading settings for project root from build.sbt...

89[info] resolving key references (15982 settings) ...

90[info] set scmInfo to https://github.com/typelevel/log4cats

91[info] set current project to root (in build file:/build/repo/)

92Execute setCrossScalaVersions: 3.7.4

93OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in testingNative/crossScalaVersions

94OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in docs/crossScalaVersions

95OpenCB::Limitting incorrect crossVersions List() -> List(2.13.16) in root/crossScalaVersions

96[info] set scmInfo to https://github.com/typelevel/log4cats

97OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in coreJVM/crossScalaVersions

98OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in slf4j/crossScalaVersions

99OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in rootNative/crossScalaVersions

100OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in js-console/crossScalaVersions

101OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in coreJS/crossScalaVersions

102OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in rootJS/crossScalaVersions

103OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in testingJVM/crossScalaVersions

104OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in noopJVM/crossScalaVersions

105OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in noopJS/crossScalaVersions

106OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in coreNative/crossScalaVersions

107OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in testingJS/crossScalaVersions

108OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in noopNative/crossScalaVersions

109OpenCB::Changing crossVersion 3.7.4 -> 3.7.4 in rootJVM/crossScalaVersions

110[info] set current project to root (in build file:/build/repo/)

111[info] Setting Scala version to 3.7.4 on 15 projects.

112[info] Switching Scala version on:

113[info] testingJVM (2.13.16, 2.12.20, 3.7.4)

114[info] noopJVM (2.13.16, 2.12.20, 3.7.4)

115[info] rootJS (2.13.16, 2.12.20, 3.7.4)

116[info] coreNative (2.13.16, 2.12.20, 3.7.4)

117[info] docs (2.13.16, 2.12.20, 3.7.4)

118[info] testingNative (2.13.16, 2.12.20, 3.7.4)

119[info] noopNative (2.13.16, 2.12.20, 3.7.4)

120[info] coreJS (2.13.16, 2.12.20, 3.7.4)

121[info] js-console (2.13.16, 2.12.20, 3.7.4)

122[info] testingJS (2.13.16, 2.12.20, 3.7.4)

123[info] noopJS (2.13.16, 2.12.20, 3.7.4)

124[info] coreJVM (2.13.16, 2.12.20, 3.7.4)

125[info] rootJVM (2.13.16, 2.12.20, 3.7.4)

126[info] rootNative (2.13.16, 2.12.20, 3.7.4)

127[info] slf4j (2.13.16, 2.12.20, 3.7.4)

128[info] Excluding projects:

129[info] * root (2.13.16)

130[info] Reapplying settings...

131[info] set scmInfo to https://github.com/typelevel/log4cats

132[info] set current project to root (in build file:/build/repo/)

133Execute mapScalacOptions: -rewrite,REQUIRE:-source:3.4-migration,-Wconf:msg=can be rewritten automatically under:s -indent,-no-indent,-new-syntax,,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

134[info] Reapplying settings...

135[info] set scmInfo to https://github.com/typelevel/log4cats

136[info] set current project to root (in build file:/build/repo/)

137[info] Defining Global / credentials, coreJS / credentials and 14 others.

138[info] The new values will be used by Compile / scalafmtOnly, IntegrationTest / scalafmtOnly and 141 others.

139[info] Run `last` for details.

140[info] Reapplying settings...

141[info] set scmInfo to https://github.com/typelevel/log4cats

142[info] set current project to root (in build file:/build/repo/)

143Execute excludeLibraryDependency: com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}

144[info] Reapplying settings...

145OpenCB::Failed to reapply settings in excludeLibraryDependency: Reference to undefined setting:

147 Global / allExcludeDependencies from Global / allExcludeDependencies (CommunityBuildPlugin.scala:331)

148 Did you mean rootJVM / allExcludeDependencies ?

149 , retry without global scopes

150[info] Reapplying settings...

151[info] set scmInfo to https://github.com/typelevel/log4cats

152[info] set current project to root (in build file:/build/repo/)

153Execute removeScalacOptionsStartingWith: -P:wartremover

154[info] Reapplying settings...

155[info] set scmInfo to https://github.com/typelevel/log4cats

156[info] set current project to root (in build file:/build/repo/)

157[success] Total time: 0 s, completed Jan 13, 2026, 3:38:24 PM

158Build config: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"compile-only","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}

159Parsed config: Success(ProjectBuildConfig(ProjectsConfig(List(),Map()),CompileOnly,List()))

160Starting build...

161Projects: Set(coreJVM, noopJVM, slf4j, testingJVM)

162Starting build for ProjectRef(file:/build/repo/,coreJVM) (log4cats-core)... [0/4]

163OpenCB::Exclude Scala3 specific scalacOption `-rewrite` in Scala 2.12.20 module Global

164OpenCB::Exclude Scala3 specific scalacOption `REQUIRE:-source:3.4-migration` in Scala 2.12.20 module Global

165OpenCB::Filter out '-deprecation', matches setting pattern '^-?-deprecation'

166OpenCB::Filter out '-feature', matches setting pattern '^-?-feature'

167Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, -java-output-version, 8, -rewrite, -Wconf:msg=can be rewritten automatically under:s, -source:3.4-migration

168[info] compiling 28 Scala sources to /build/repo/core/jvm/target/scala-3.7.4/classes ...

174[info] [patched file /build/repo/core/shared/src/main/scala-3/org/typelevel/log4cats/LoggerNameCompat.scala]

176[info] done compiling

177[info] compiling 1 Scala source to /build/repo/core/jvm/target/scala-3.7.4/classes ...

179[info] done compiling

180[info] compiling 4 Scala sources to /build/repo/core/jvm/target/scala-3.7.4/classes ...

182[info] done compiling

183[info] compiling 7 Scala sources to /build/repo/core/jvm/target/scala-3.7.4/classes ...

185[info] done compiling

186[info] compiling 3 Scala sources to /build/repo/core/jvm/target/scala-3.7.4/test-classes ...

187[info] done compiling

188Starting build for ProjectRef(file:/build/repo/,noopJVM) (log4cats-noop)... [1/4]

189Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, -java-output-version, 8, -rewrite, -Wconf:msg=can be rewritten automatically under:s, -source:3.4-migration

190Starting build for ProjectRef(file:/build/repo/,slf4j) (log4cats-slf4j)... [2/4]

191Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, -java-output-version, 8, -rewrite, -Wconf:msg=can be rewritten automatically under:s, -source:3.4-migration

192[info] compiling 6 Scala sources to /build/repo/slf4j/target/scala-3.7.4/classes ...

194[info] [patched file /build/repo/slf4j/src/main/scala-3/org/typelevel/log4cats/slf4j/internal/GetLoggerMacros.scala]

195[info] done compiling

196[info] compiling 1 Scala source to /build/repo/slf4j/target/scala-3.7.4/classes ...

197[info] done compiling

198[info] compiling 1 Scala source to /build/repo/slf4j/target/scala-3.7.4/classes ...

200[info] done compiling

201[info] compiling 6 Scala sources to /build/repo/slf4j/target/scala-3.7.4/classes ...

203[info] done compiling

204[info] compiling 3 Scala sources and 1 Java source to /build/repo/slf4j/target/scala-3.7.4/test-classes ...

205[info] done compiling

206Starting build for ProjectRef(file:/build/repo/,testingJVM) (log4cats-testing)... [3/4]

207Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, -java-output-version, 8, -rewrite, -Wconf:msg=can be rewritten automatically under:s, -source:3.4-migration

208[info] compiling 3 Scala sources to /build/repo/testing/jvm/target/scala-3.7.4/classes ...

209[info] done compiling

210[info] compiling 5 Scala sources to /build/repo/testing/jvm/target/scala-3.7.4/test-classes ...

211[info] done compiling

213************************

214Build summary:

215[{

216 "module": "log4cats-core",

217 "compile": {"status": "ok", "tookMs": 12098, "warnings": 1, "errors": 0, "sourceVersion": "3.4-migration"},

218 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

219 "test-compile": {"status": "ok", "tookMs": 3518, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

220 "test": {"status": "skipped", "tookMs": 0, "passed": 0, "failed": 0, "ignored": 0, "skipped": 0, "total": 0, "byFramework": []},

221 "publish": {"status": "skipped", "tookMs": 0},

222 "metadata": {

223 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

224}

225},{

226 "module": "log4cats-noop",

227 "compile": {"status": "ok", "tookMs": 124, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

228 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

229 "test-compile": {"status": "ok", "tookMs": 134, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

230 "test": {"status": "skipped", "tookMs": 0, "passed": 0, "failed": 0, "ignored": 0, "skipped": 0, "total": 0, "byFramework": []},

231 "publish": {"status": "skipped", "tookMs": 0},

232 "metadata": {

233 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

234}

235},{

236 "module": "log4cats-slf4j",

237 "compile": {"status": "ok", "tookMs": 1142, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

238 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

239 "test-compile": {"status": "ok", "tookMs": 5030, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

240 "test": {"status": "skipped", "tookMs": 0, "passed": 0, "failed": 0, "ignored": 0, "skipped": 0, "total": 0, "byFramework": []},

241 "publish": {"status": "skipped", "tookMs": 0},

242 "metadata": {

243 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

244}

245},{

246 "module": "log4cats-testing",

247 "compile": {"status": "ok", "tookMs": 2015, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

248 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

249 "test-compile": {"status": "ok", "tookMs": 2796, "warnings": 0, "errors": 0, "sourceVersion": "3.4-migration"},

250 "test": {"status": "skipped", "tookMs": 0, "passed": 0, "failed": 0, "ignored": 0, "skipped": 0, "total": 0, "byFramework": []},

251 "publish": {"status": "skipped", "tookMs": 0},

252 "metadata": {

253 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

254}

255}]

256************************

257[success] Total time: 30 s, completed Jan 13, 2026, 3:38:55 PM

258[0JChecking patch project/plugins.sbt...

259Checking patch build.sbt...

260Applied patch project/plugins.sbt cleanly.

261Applied patch build.sbt cleanly.

262Commit migration rewrites

263Switched to a new branch 'opencb/migrate-source-3.4'

264[opencb/migrate-source-3.4 fbc5ac0] Apply Scala compiler rewrites using -source:3.4-migration using Scala 3.7.4

265 2 files changed, 1 insertion(+), 3 deletions(-)

266----

267Preparing build for 3.8.0

268Scala binary version found: 3.8

269Implicitly using source version 3.8

270Scala binary version found: 3.8

271Implicitly using source version 3.8

272Would try to apply common scalacOption (best-effort, sbt/mill only):

273Append: ,REQUIRE:-source:3.8

274Remove: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

276Try apply source patch:

277Path: build.sbt

278Pattern: val Scala3 = "3.3.6"

279Replacement: val Scala3 = "3.8.0"

280Successfully applied pattern 'val Scala3 = "3.3.6"' in build.sbt

281----

282Starting build for 3.8.0

283Execute tests: true

284sbt project found:

285No prepare script found for project typelevel/log4cats

286##################################

287Scala version: 3.8.0

288Targets: org.typelevel%log4cats-core org.typelevel%log4cats-noop org.typelevel%log4cats-slf4j org.typelevel%log4cats-testing

289Project projectConfig: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}

290##################################

291Using extra scalacOptions: ,REQUIRE:-source:3.8

292Filtering out scalacOptions: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

293[sbt_options] declare -a sbt_options=()

294[process_args] java_version = '17'

295[copyRt] java9_rt = '/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_8/rt.jar'

296# Executing command line:

297java

298-Dfile.encoding=UTF-8

299-Dfile.encoding=UTF-8

300-Xms1G

301-Xmx6G

302-Xss8m

303-XX:ReservedCodeCacheSize=512m

304-XX:+UseG1GC

305-Dcommunitybuild.scala=3.8.0

306-Dcommunitybuild.project.dependencies.add=

307-Xmx7G

308-Xms4G

309-Xss8M

310-Dsbt.script=/root/.sdkman/candidates/sbt/current/bin/sbt

311-Dscala.ext.dirs=/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_8

312-jar

313/root/.sdkman/candidates/sbt/1.11.5/bin/sbt-launch.jar

314"setCrossScalaVersions 3.8.0"

315"++3.8.0 -v"

316"mapScalacOptions ",REQUIRE:-source:3.8,-Wconf:msg=can be rewritten automatically under:s" ",-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e""

317"set every credentials := Nil"

318"excludeLibraryDependency com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}"

319"removeScalacOptionsStartingWith -P:wartremover"

321moduleMappings

322"runBuild 3.8.0 """{"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}""" org.typelevel%log4cats-core org.typelevel%log4cats-noop org.typelevel%log4cats-slf4j org.typelevel%log4cats-testing"

324[info] welcome to sbt 1.11.5 (Eclipse Adoptium Java 17.0.8)

325[info] loading settings for project repo-build from akka.sbt, plugins.sbt...

326[info] loading project definition from /build/repo/project

327[info] loading settings for project root from build.sbt...

328[info] resolving key references (15982 settings) ...

329[info] set scmInfo to https://github.com/typelevel/log4cats

330[info] set current project to root (in build file:/build/repo/)

331Execute setCrossScalaVersions: 3.8.0

332OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in testingNative/crossScalaVersions

333OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in docs/crossScalaVersions

334OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in coreJVM/crossScalaVersions

335OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in slf4j/crossScalaVersions

336OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in rootNative/crossScalaVersions

337[info] set scmInfo to https://github.com/typelevel/log4cats

338OpenCB::Limitting incorrect crossVersions List() -> List(2.13.16) in root/crossScalaVersions

339OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in js-console/crossScalaVersions

340OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in coreJS/crossScalaVersions

341OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in rootJS/crossScalaVersions

342OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in testingJVM/crossScalaVersions

343OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in noopJVM/crossScalaVersions

344OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in noopJS/crossScalaVersions

345OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in coreNative/crossScalaVersions

346OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in testingJS/crossScalaVersions

347OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in noopNative/crossScalaVersions

348OpenCB::Changing crossVersion 3.8.0 -> 3.8.0 in rootJVM/crossScalaVersions

349[info] set current project to root (in build file:/build/repo/)

350[info] Setting Scala version to 3.8.0 on 15 projects.

351[info] Switching Scala version on:

352[info] testingJVM (2.13.16, 2.12.20, 3.8.0)

353[info] noopJVM (2.13.16, 2.12.20, 3.8.0)

354[info] rootJS (2.13.16, 2.12.20, 3.8.0)

355[info] coreNative (2.13.16, 2.12.20, 3.8.0)

356[info] docs (2.13.16, 2.12.20, 3.8.0)

357[info] testingNative (2.13.16, 2.12.20, 3.8.0)

358[info] noopNative (2.13.16, 2.12.20, 3.8.0)

359[info] coreJS (2.13.16, 2.12.20, 3.8.0)

360[info] js-console (2.13.16, 2.12.20, 3.8.0)

361[info] testingJS (2.13.16, 2.12.20, 3.8.0)

362[info] noopJS (2.13.16, 2.12.20, 3.8.0)

363[info] coreJVM (2.13.16, 2.12.20, 3.8.0)

364[info] rootJVM (2.13.16, 2.12.20, 3.8.0)

365[info] rootNative (2.13.16, 2.12.20, 3.8.0)

366[info] slf4j (2.13.16, 2.12.20, 3.8.0)

367[info] Excluding projects:

368[info] * root (2.13.16)

369[info] Reapplying settings...

370[info] set scmInfo to https://github.com/typelevel/log4cats

371[info] set current project to root (in build file:/build/repo/)

372Execute mapScalacOptions: ,REQUIRE:-source:3.8,-Wconf:msg=can be rewritten automatically under:s ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

373[info] Reapplying settings...

374[info] set scmInfo to https://github.com/typelevel/log4cats

375[info] set current project to root (in build file:/build/repo/)

376[info] Defining Global / credentials, coreJS / credentials and 14 others.

377[info] The new values will be used by Compile / scalafmtOnly, IntegrationTest / scalafmtOnly and 141 others.

378[info] Run `last` for details.

379[info] Reapplying settings...

380[info] set scmInfo to https://github.com/typelevel/log4cats

381[info] set current project to root (in build file:/build/repo/)

382Execute excludeLibraryDependency: com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}

383[info] Reapplying settings...

384OpenCB::Failed to reapply settings in excludeLibraryDependency: Reference to undefined setting:

386 Global / allExcludeDependencies from Global / allExcludeDependencies (CommunityBuildPlugin.scala:331)

387 Did you mean rootJVM / allExcludeDependencies ?

388 , retry without global scopes

389[info] Reapplying settings...

390[info] set scmInfo to https://github.com/typelevel/log4cats

391[info] set current project to root (in build file:/build/repo/)

392Execute removeScalacOptionsStartingWith: -P:wartremover

393[info] Reapplying settings...

394[info] set scmInfo to https://github.com/typelevel/log4cats

395[info] set current project to root (in build file:/build/repo/)

396[success] Total time: 0 s, completed Jan 13, 2026, 3:39:19 PM

397Build config: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"17"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":["3.4"],"sourcePatches":[{"path":"build.sbt","pattern":"val Scala3 = \"3.3.6\"","replaceWith":"val Scala3 = \"<SCALA_VERSION>\""}]}

398Parsed config: Success(ProjectBuildConfig(ProjectsConfig(List(),Map()),Full,List()))

399Starting build...

400Projects: Set(coreJVM, noopJVM, slf4j, testingJVM)

401Starting build for ProjectRef(file:/build/repo/,coreJVM) (log4cats-core)... [0/4]

402OpenCB::Exclude Scala3 specific scalacOption `REQUIRE:-source:3.8` in Scala 2.12.20 module Global

403OpenCB::Filter out '-deprecation', matches setting pattern '^-?-deprecation'

404OpenCB::Filter out '-feature', matches setting pattern '^-?-feature'

405Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, --java-output-version:17, -Wconf:msg=can be rewritten automatically under:s, -source:3.8

406[info] compiling 28 Scala sources to /build/repo/core/jvm/target/scala-3.8.0/classes ...

408[info] done compiling

409[info] compiling 3 Scala sources to /build/repo/core/jvm/target/scala-3.8.0/test-classes ...

410[info] done compiling

411org.typelevel.log4cats.LoggerNameTest:

412 + names 0.01s

413Starting build for ProjectRef(file:/build/repo/,noopJVM) (log4cats-noop)... [1/4]

414Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, --java-output-version:17, -Wconf:msg=can be rewritten automatically under:s, -source:3.8

415Starting build for ProjectRef(file:/build/repo/,slf4j) (log4cats-slf4j)... [2/4]

416Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, --java-output-version:17, -Wconf:msg=can be rewritten automatically under:s, -source:3.8

417[info] compiling 6 Scala sources to /build/repo/slf4j/target/scala-3.8.0/classes ...

419[info] done compiling

420[info] compiling 3 Scala sources and 1 Java source to /build/repo/slf4j/target/scala-3.8.0/test-classes ...

421[info] done compiling

422[pool-38-thread-1] INFO o.t.l.s.i.Slf4jLoggerInternalSuite - A log went here foo=bar

423org.typelevel.log4cats.slf4j.internal.Slf4jLoggerInternalSuite:

424 + Slf4jLoggerInternal resets after logging 0.147s

426 + Slf4jLoggerInternal correctly sets the MDC 0.017s

427 + Slf4jLoggerInternal does not include values previously in the MDC in the log's context 0.004s

428 + Slf4jLoggerInternal is suitably lazy 0.01s

429 + Slf4jLoggerInternal.mapK is still lazy 0.008s

430 + Slf4jLoggerInternal.withModifiedString is still lazy 0.012s

431 + Slf4jLoggerInternal.addContext is still lazy 0.01s

432 + Slf4jLoggerInternal gets the dispatching right (msg) 0.005s

433 + Slf4jLoggerInternal gets the dispatching right (msg + error) 0.005s

434 + Slf4jLoggerInternal gets the dispatching right (msg + context) 0.005s

435 + Slf4jLoggerInternal gets the dispatching right (msg + context + error 0.005s

436 + Slf4jLoggerInternal allows JLogger access to the context for is<Level>Enabled 0.005s

437Starting build for ProjectRef(file:/build/repo/,testingJVM) (log4cats-testing)... [3/4]

438Compile scalacOptions: -encoding, UTF-8, -unchecked, -Wunused:implicits, -Wunused:explicits, -Wunused:imports, -Wunused:locals, -Wunused:params, -Wunused:privates, -Wvalue-discard, -language:implicitConversions, -Xkind-projector, --java-output-version:17, -Wconf:msg=can be rewritten automatically under:s, -source:3.8

439[info] compiling 3 Scala sources to /build/repo/testing/jvm/target/scala-3.8.0/classes ...

440[info] done compiling

441[info] compiling 5 Scala sources to /build/repo/testing/jvm/target/scala-3.8.0/test-classes ...

442[info] done compiling

443org.typelevel.log4cats.extras.DeferredStructuredLoggerTest:

444 + DeferredStructuredLogger should not log messages by default when code completes without raising an error 0.219s

445 + DeferredStructuredLogger should provide the means to log messages when code completes without raising an error 0.022s

448 + DeferredStructuredLogger doesn't lose the ability to log when message is modified 0.011s

449 + DeferredStructuredLogger doesn't lose the ability to log when mapK is called 0.003s

450 + DeferredStructuredLogger doesn't lose the ability to log when context is added 0.007s

451org.typelevel.log4cats.extras.DeferredLoggerTest:

452 + DeferredLogger should not log messages by default when code completes without raising an error 0.223s

453 + DeferredLogger should provide the means to log messages when code completes without raising an error 0.025s

456 + DeferredLogger doesn't lose the ability to log when message is modified 0.021s

457 + DeferredLogger doesn't lose the ability to log when mapK is called 0.01s

458org.typelevel.log4cats.PagingSelfAwareStructuredLoggerSuite:

459 + singlePageSuite1: Log at trace level 0.263s

460 + singlePageSuite1: Log at debug level 0.002s

461 + singlePageSuite1: Log at info level 0.003s

462 + singlePageSuite1: Log at warn level 0.001s

463 + singlePageSuite1: Log at error level 0.009s

464 + singlePageSuite2: Log at trace level 0.003s

465 + singlePageSuite2: Log at debug level 0.005s

466 + singlePageSuite2: Log at info level 0.001s

467 + singlePageSuite2: Log at warn level 0.002s

468 + singlePageSuite2: Log at error level 0.002s

469 + singlePageSuite3: Log at trace level 0.001s

470 + singlePageSuite3: Log at debug level 0.002s

471 + singlePageSuite3: Log at info level 0.007s

472 + singlePageSuite3: Log at warn level 0.002s

473 + singlePageSuite3: Log at error level 0.004s

474 + singlePageSuite4: Log at trace level 0.002s

475 + singlePageSuite4: Log at debug level 0.003s

476 + singlePageSuite4: Log at info level 0.003s

477 + singlePageSuite4: Log at warn level 0.004s

478 + singlePageSuite4: Log at error level 0.002s

479 + multiplePageSuite1: Log at trace level 0.012s

480 + multiplePageSuite1: Log at debug level 0.001s

481 + multiplePageSuite1: Log at info level 0.002s

482 + multiplePageSuite1: Log at warn level 0.004s

483 + multiplePageSuite1: Log at error level 0.002s

484 + multiplePageSuite2: Log at trace level 0.004s

485 + multiplePageSuite2: Log at debug level 0.004s

486 + multiplePageSuite2: Log at info level 0.002s

487 + multiplePageSuite2: Log at warn level 0.002s

488 + multiplePageSuite2: Log at error level 0.002s

489 + multiplePageSuite3: Log at trace level 0.003s

490 + multiplePageSuite3: Log at debug level 0.002s

491 + multiplePageSuite3: Log at info level 0.001s

492 + multiplePageSuite3: Log at warn level 0.002s

493 + multiplePageSuite3: Log at error level 0.002s

494 + multiplePageSuite4: Log at trace level 0.002s

495 + multiplePageSuite4: Log at debug level 0.005s

496 + multiplePageSuite4: Log at info level 0.002s

497 + multiplePageSuite4: Log at warn level 0.008s

498 + multiplePageSuite4: Log at error level 0.002s

499 + maxPageNumSuite: Log at trace level 0.002s

500 + maxPageNumSuite: Log at debug level 0.002s

501 + maxPageNumSuite: Log at info level 0.001s

502 + maxPageNumSuite: Log at warn level 0.003s

503 + maxPageNumSuite: Log at error level 0.001s

509org.typelevel.log4cats.extras.DeferredLoggerFactoryTest:

510 + DeferredLoggerFactory should not log messages by default when code completes without raising an error 0.273s

511 + DeferredLoggerFactory should provide the means to log messages when code completes without raising an error 0.03s

512 + DeferredLoggerFactory should log messages from all loggers when logging is requested 0.031s

515 + DeferredLoggerFactory should respect log levels 0.008s

516 + DeferredLoggerFactory doesn't lose the ability to log when message is modified 0.011s

517 + DeferredLoggerFactory doesn't lose the ability to log when mapK is called 0.008s

518 + DeferredLoggerFactory doesn't lose the ability to log when context is added 0.009s

520************************

521Build summary:

522[{

523 "module": "log4cats-core",

524 "compile": {"status": "ok", "tookMs": 12179, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

525 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

526 "test-compile": {"status": "ok", "tookMs": 1133, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

527 "test": {"status": "ok", "tookMs": 533, "passed": 1, "failed": 0, "ignored": 0, "skipped": 0, "total": 1, "byFramework": [{"framework": "munit", "stats": {"passed": 1, "failed": 0, "ignored": 0, "skipped": 0, "total": 1}}]},

528 "publish": {"status": "skipped", "tookMs": 0},

529 "metadata": {

530 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

531}

532},{

533 "module": "log4cats-noop",

534 "compile": {"status": "ok", "tookMs": 176, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

535 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

536 "test-compile": {"status": "ok", "tookMs": 172, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

537 "test": {"status": "ok", "tookMs": 160, "passed": 0, "failed": 0, "ignored": 0, "skipped": 0, "total": 0, "byFramework": []},

538 "publish": {"status": "skipped", "tookMs": 0},

539 "metadata": {

540 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

541}

542},{

543 "module": "log4cats-slf4j",

544 "compile": {"status": "ok", "tookMs": 1319, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

545 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

546 "test-compile": {"status": "ok", "tookMs": 3991, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

547 "test": {"status": "ok", "tookMs": 680, "passed": 13, "failed": 0, "ignored": 0, "skipped": 0, "total": 13, "byFramework": [{"framework": "munit", "stats": {"passed": 13, "failed": 0, "ignored": 0, "skipped": 0, "total": 13}}]},

548 "publish": {"status": "skipped", "tookMs": 0},

549 "metadata": {

550 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

551}

552},{

553 "module": "log4cats-testing",

554 "compile": {"status": "ok", "tookMs": 2253, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

555 "doc": {"status": "skipped", "tookMs": 0, "files": 0, "totalSizeKb": 0},

556 "test-compile": {"status": "ok", "tookMs": 2852, "warnings": 0, "errors": 0, "sourceVersion": "3.8"},

557 "test": {"status": "ok", "tookMs": 759, "passed": 72, "failed": 0, "ignored": 0, "skipped": 0, "total": 72, "byFramework": [{"framework": "munit", "stats": {"passed": 72, "failed": 0, "ignored": 0, "skipped": 0, "total": 72}}]},

558 "publish": {"status": "skipped", "tookMs": 0},

559 "metadata": {

560 "crossScalaVersions": ["2.13.16", "2.12.20", "3.3.6"]

561}

562}]

563************************

564[success] Total time: 30 s, completed Jan 13, 2026, 3:39:50 PM

565[0JChecking patch project/plugins.sbt...

566Checking patch build.sbt...

567Applied patch project/plugins.sbt cleanly.

568Applied patch build.sbt cleanly.