High Memory Usage/Memory not freed

I'm running many instances of the container on many hosts, but on some hosts the memory begins to grow without being freed. Are there any recommendations to resolve this? Thanks!

100% on the graph is 128mb


docker inspect image:

```
"Id": "sha256:6c7afda380b21c90161d54a1f6d407f17d015efc9fc0b7b8cab7c3fdb6d96513",
"RepoTags": [
"gliderlabs/logspout:latest"
],
"RepoDigests": [],
"Parent": "",
"Comment": "",
"Created": "2016-05-23T21:36:58.770911598Z",
"Container": "79e44e12ada6373446e23ed6dec4e807533339c3346c2035baa2c37f0053ac75",
```

No source file, test, or entry point is named. Start by reproducing the memory growth with many logspout containers across hosts, using the supplied memory graph and Docker image details, then identify where memory remains allocated and define a regression check showing that usage is released.

Written by the indexing model from the issue text.