Build Logs

lampepfl/gears • 3.8.0-RC4:2025-12-22

Errors

Warnings

Total Lines

306

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

2Clonning https://github.com/lampepfl/gears.git into /build/repo using revision v0.2.0

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

4Note: switching to 'a4a6b721442ce1ad964376b759766d7846947daf'.

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

21----

22Preparing build for 3.8.0-RC4

23Scala binary version found: 3.8

24Implicitly using source version 3.8

25Scala binary version found: 3.8

26Implicitly using source version 3.8

27Would try to apply common scalacOption (best-effort, sbt/mill only):

28Append: ,REQUIRE:-source:3.8

29Remove: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

30----

31Starting build for 3.8.0-RC4

32Execute tests: true

33sbt project found:

34Sbt version 1.10.0 is not supported, minimal supported version is 1.11.5

35Enforcing usage of sbt in version 1.11.5

36No prepare script found for project lampepfl/gears

37##################################

38Scala version: 3.8.0-RC4

39Targets: ch.epfl.lamp%gears

40Project projectConfig: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}

41##################################

42Using extra scalacOptions: ,REQUIRE:-source:3.8

43Filtering out scalacOptions: ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

44[sbt_options] declare -a sbt_options=()

45[process_args] java_version = '21'

46[copyRt] java9_rt = '/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_21/rt.jar'

47# Executing command line:

48java

49-Dfile.encoding=UTF-8

50-Dcommunitybuild.scala=3.8.0-RC4

51-Dcommunitybuild.project.dependencies.add=

52-Xmx7G

53-Xms4G

54-Xss8M

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

56-Dscala.ext.dirs=/root/.sbt/1.0/java9-rt-ext-eclipse_adoptium_21

57-jar

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

59"setCrossScalaVersions 3.8.0-RC4"

60"++3.8.0-RC4 -v"

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

62"set every credentials := Nil"

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

64"removeScalacOptionsStartingWith -P:wartremover"

66moduleMappings

67"runBuild 3.8.0-RC4 """{"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}""" ch.epfl.lamp%gears"

69[info] welcome to sbt 1.11.5 (Eclipse Adoptium Java 21)

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

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

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

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

74[info] Compilation completed in 8.597s.

75[info] done compiling

76[info] loading settings for project repo from build.sbt...

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

78Execute setCrossScalaVersions: 3.8.0-RC4

79OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC4 in rootNative/crossScalaVersions

80OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC4 in repo/crossScalaVersions

81OpenCB::Changing crossVersion 3.3.3 -> 3.8.0-RC4 in rootJVM/crossScalaVersions

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

83[info] Setting Scala version to 3.8.0-RC4 on 3 projects.

84[info] Switching Scala version on:

85[info] * repo (3.8.0-RC4)

86[info] rootJVM (3.8.0-RC4)

87[info] rootNative (3.8.0-RC4)

88[info] Excluding projects:

89[info] Reapplying settings...

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

91Execute mapScalacOptions: ,REQUIRE:-source:3.8,-Wconf:msg=can be rewritten automatically under:s ,-deprecation,-feature,-Xfatal-warnings,-Werror,MATCH:.*-Wconf.*any:e

92[info] Reapplying settings...

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

94[info] Defining Global / credentials, credentials and 1 others.

95[info] The new values will be used by Global / pgpSelectPassphrase, Global / pgpSigningKey and 14 others.

96[info] Run `last` for details.

97[info] Reapplying settings...

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

99Execute excludeLibraryDependency: com.github.ghik:zerowaste_{scalaVersion} com.olegpy:better-monadic-for_3 org.polyvariant:better-tostring_{scalaVersion} org.wartremover:wartremover_{scalaVersion}

100[info] Reapplying settings...

101OpenCB::Failed to reapply settings in excludeLibraryDependency: Reference to undefined setting:

102

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

104 Did you mean rootJVM / allExcludeDependencies ?

105 , retry without global scopes

106[info] Reapplying settings...

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

108Execute removeScalacOptionsStartingWith: -P:wartremover

109[info] Reapplying settings...

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

111[success] Total time: 0 s, completed Dec 22, 2025, 6:46:38 PM

112Build config: {"projects":{"exclude":[],"overrides":{}},"java":{"version":"21"},"sbt":{"commands":[],"options":[]},"mill":{"options":[]},"tests":"full","migrationVersions":[],"sourcePatches":[]}

113Parsed config: Success(ProjectBuildConfig(ProjectsConfig(List(),Map()),Full,List()))

114Starting build...

115Projects: Set(rootJVM)

116Starting build for ProjectRef(file:/build/repo/,rootJVM) (gears)... [0/1]

117OpenCB::Exclude Scala3 specific scalacOption `REQUIRE:-source:3.8` in Scala 2.12.20 module Global

118Compile scalacOptions: -Wconf:msg=can be rewritten automatically under:s, -source:3.8

119[info] compiling 21 Scala sources to /build/repo/jvm/target/scala-3.8.0-RC4/classes ...

120[warn] -- [E197] Potential Issue Warning: /build/repo/shared/src/main/scala/async/Listener.scala:53:8

121[warn] 53 | new Listener[T]:

122[warn] | ^

123[warn] | New anonymous class definition will be duplicated at each inline site

124[warn] |

125[warn] | longer explanation available when compiling with `-explain`

126[warn] there were 17 deprecation warnings; re-run with -deprecation for details

127[warn] two warnings found

128[info] done compiling

129[info] compiling 11 Scala sources to /build/repo/jvm/target/scala-3.8.0-RC4/test-classes ...

130[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/ChannelBehavior.scala:309:32

131[warn] 309 | a.readSource handle { case Right(v) =>

132[warn] | ^

133[warn] | match may not be exhaustive.

134[warn] |

135[warn] | It would fail on pattern case: Left(_)

136[warn] |

137[warn] | longer explanation available when compiling with `-explain`

138[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/ChannelBehavior.scala:312:36

139[warn] 312 | b.sendSource(10) handle { case Right(_) =>

140[warn] | ^

141[warn] | match may not be exhaustive.

142[warn] |

143[warn] | It would fail on pattern case: Left(_)

144[warn] |

145[warn] | longer explanation available when compiling with `-explain`

146[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/SourceBehavior.scala:134:43

147[warn] 134 | assertEquals(f.transformValuesWith({ case Success(i) => i + 1 }).awaitResult, 11)

148[warn] | ^

149[warn] | match may not be exhaustive.

150[warn] |

151[warn] | It would fail on pattern case: scala.util.Failure(_)

152[warn] |

153[warn] | longer explanation available when compiling with `-explain`

154[warn] -- [E029] Pattern Match Exhaustivity Warning: /build/repo/shared/src/test/scala/SourceBehavior.scala:136:43

155[warn] 136 | assertEquals(g.transformValuesWith({ case Failure(_) => 17 }).awaitResult, 17)

156[warn] | ^

157[warn] | match may not be exhaustive.

158[warn] |

159[warn] | It would fail on pattern case: scala.util.Success(_)

160[warn] |

161[warn] | longer explanation available when compiling with `-explain`

162[warn] -- [E092] Pattern Match Unchecked Warning: /build/repo/shared/src/test/scala/FutureBehavior.scala:184:13

163[warn] 184 | case _: Failure[CancellationException] => ()

164[warn] | ^

165[warn] |the type test for scala.util.Failure[java.util².concurrent.CancellationException] cannot be checked at runtime because its type arguments can't be determined from scala.util.Try[Int]

166[warn] |

167[warn] |where: util is a package in package scala

168[warn] | util² is a package in package java

169[warn] |

170[warn] | longer explanation available when compiling with `-explain`

171[warn] there were 33 deprecation warnings; re-run with -deprecation for details

172[warn] 6 warnings found

173[info] done compiling

174[warn] javaOptions will be ignored, fork is set to false

175true false

176ListenerBehavior:

177 + race two futures 0.042s

178 + lock two listeners 0.002s

179 + lock two listeners where one fails 0.002s

180 + lock two races 0.002s

181 + lock two races in reverse order 0.001s

182 + lock two nested races 0.001s

183 + lock two nested races in reverse order 0.001s

184 + race successful without wait 0.002s

185 + race successful with wait 0.003s

186 + race polling 0.001s

187 + race failed without wait 0.001s

188 + lockBoth of race with competing lock 0.001s

189 + conflicting locks 0.002s

190 + failing downstream listener is dropped in race 0.002s

191 + succeeding downstream listener is dropped in race 0.001s

192RetryBehavior:

193 + Exponential backoff(2) 50ms, 5 times total schedule 0.79s

194 + UntilSuccess 150ms 0.603s

195 + UntilFailure 150ms 0.603s

196 + delay policies 0.005s

197TaskScheduleBehavior:

198 + Every 100ms, 3 times total schedule 0.206s

199 + Exponential backoff(2) 50ms, 5 times total schedule 0.753s

200 + Fibonacci backoff 10ms, 6 times total schedule 0.122s

201 + UntilSuccess 150ms 0.603s

202 + UntilFailure 150ms 0.605s

203TimerBehavior:

204 + sleeping does sleep 0.218s

205 + timer does sleep 1.004s

206 + racing with a sleeping future 2.254s

207CancellationBehavior:

208 + no cancel 0.401s

209 + group cancel 0.001s

210 + link group 0.003s

211 + nested link group 0.001s

212 + link to already cancelled 0.503s

213 + link to already cancelled awaited 0.002s

214JVMCancellationBehavior:

215 + no cancel -> timeout 5.001s

2161

217FutureBehavior:

218 + Old test 0.014s

219 + Constant returns 0.003s

220 + Future.now returning 0.001s

221 + Constant future with timeout 0.051s

222 + or 0.007s

223 + orWithCancel of 2 futures 0.604s

224 + zip 0.002s

225 + result wraps exceptions 0.002s

226 + result wraps values 0.002s

227 + value propagates exceptions exceptions through futures 0.001s

228 + futures can be nested 0.028s

229 + future are cancelled via .interrupt() and not checking the flag in async 0.0s

230 + future should cancel its group when the main body is completed 1.504s

231 + zombie threads exist and run to completion after the Async.blocking barrier 0.302s

232==> i FutureBehavior.cancelled futures return the same constant CancellationException with no stack attached ignored 0.0s

233 + noninterruptible future immediate return 0.001s

234 + Noninterruptible future cannot be interrupted immediately but throws later 0.301s

235 + Promise can be cancelled 0.0s

236 + Promise can't be cancelled after completion 0.001s

237 + Future.withResolver cancel handler is run once 0.002s

238 + Future.withResolver cancel handler is not run after being completed 0.001s

239 + Future.withResolver is only completed after handler decides 0.002s

240 + Nesting of cancellations 0.402s

241 + future collector 1.002s

242 + mutable collector 2.003s

243 + future collection: awaitAll* 1.004s

244 + future collection: awaitFirst* 1.006s

245 + uninterruptible should continue even when Future is cancelled 0.001s

246ChannelBehavior:

247 + sending is blocking in SyncChannel 0.532s

248 + sending is nonblocking in empty BufferedChannel 0.503s

249 + sending is blocking in full BufferedChannel 0.502s

250 + read blocks until value is available in SyncChannel 1.002s

251 + read blocks until value is available in BufferedChannel 1.003s

252 + values arrive in order 0.088s

253 + reading a closed channel returns Failure(ChannelClosedException) 0.003s

254 + writing to a closed channel throws ChannelClosedException 0.002s

255 + send a lot of values via a channel and check their sum 0.15s

256 + multiple writers, multiple readers 6.004s

257 + race reads 0.081s

258 + unbounded channels with sync sending 0.001s

259 + race sends 0.12s

260 + race syntax 0.002s

261 + ChannelMultiplexer multiplexes - all subscribers read the same stream 0.006s

262 + ChannelMultiplexer multiple readers and writers 1.006s

263SchedulerBehavior:

264 + schedule cancellation works 1.003s

265 + schedule cancellation doesn't abort inner code 1.052s

266 + execute works 0.002s

267SourceBehavior:

268 + onComplete register after completion runs immediately 0.002s

269 + poll is asynchronous 0.001s

270 + onComplete is asynchronous 0.001s

271 + await is synchronous 0.351s

272 + sources wait on children sources when they block 0.143s

273 + sources do not wait on zombie sources (which are killed at the end of Async.Blocking) 0.001s

274 + poll() 0.101s

275 + onComplete() fires 0.214s

276 + dropped onComplete() listener does not fire 0.202s

277 + transform values with 0.001s

278 + all listeners in chain fire 0.152s

279 + either 0.402s

280 + source values 0.205s

281 + transformValuesWith unsubscribes 0.002s

282StressTest:

283 + survives a stress test that hammers on creating futures 11.521s

284 + survives a stress test that hammers on suspending 20.105s

285

286************************

287Build summary:

288[{

289 "module": "gears",

290 "compile": {"status": "ok", "tookMs": 12433, "warnings": 1, "errors": 0, "sourceVersion": "3.8"},

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

292 "test-compile": {"status": "ok", "tookMs": 4716, "warnings": 5, "errors": 0, "sourceVersion": "3.8"},

293 "test": {"status": "ok", "tookMs": 34028, "passed": 96, "failed": 0, "ignored": 1, "skipped": 0, "total": 97, "byFramework": [{"framework": "munit", "stats": {"passed": 96, "failed": 0, "ignored": 1, "skipped": 0, "total": 97}}]},

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

295 "metadata": {

296 "crossScalaVersions": ["3.3.3"]

297}

298}]

299************************

300[success] Total time: 61 s (0:01:01.0), completed Dec 22, 2025, 6:47:39 PM

301[0JChecking patch project/plugins.sbt...

302Checking patch project/build.properties...

303Checking patch build.sbt...

304Applied patch project/plugins.sbt cleanly.

305Applied patch project/build.properties cleanly.

306Applied patch build.sbt cleanly.