The game crashes directly on start with this mod installed. I use Minecraft 1.14.2 with Fabric 0.4.2.27.
Here the error log:

[main/INFO]: Loading for game Minecraft 1.14.2
Failed to start Minecraft:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)
Caused by: java.lang.RuntimeException: Failed to resolve mods!
at net.fabricmc.loader.FabricLoader.load(FabricLoader.java:147)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:120)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
... 8 more
Caused by: net.fabricmc.loader.discovery.ModResolutionException: Could not resolve valid mod collection (at: durabilityviewer requires {fabric @ [*]})
at net.fabricmc.loader.discovery.ModResolver.findCompatibleSet(ModResolver.java:185)
at net.fabricmc.loader.discovery.ModResolver.resolve(ModResolver.java:483)
at net.fabricmc.loader.FabricLoader.load(FabricLoader.java:145)
... 10 more
Caused by: net.fabricmc.loader.util.sat4j.specs.ContradictionException: Creating Empty clause ?
at net.fabricmc.loader.util.sat4j.minisat.constraints.cnf.Clauses.propagationCheck(Clauses.java:117)
at net.fabricmc.loader.util.sat4j.minisat.constraints.cnf.Clauses.sanityCheck(Clauses.java:97)
at net.fabricmc.loader.util.sat4j.minisat.constraints.MixedDataStructureDanielWL.createClause(MixedDataStructureDanielWL.java:81)
at net.fabricmc.loader.util.sat4j.minisat.core.Solver.addClause(Solver.java:401)
at net.fabricmc.loader.discovery.ModResolver.findCompatibleSet(ModResolver.java:183)
... 12 more

Well, after installing the Fabric API it works. Sorry for wasting your time just because I didn't see that I had to install an additional mod after installing Fabric...
Suggestion: Add a note that the mods need the Fabric API. Just to help other stupid people like me. ^^