missing dependencies

```
START RequestId: 8129d07b-d4f2-4c9c-878e-9587c4f5bce6 Version: $LATEST
++ dirname /var/task/bootstrap
+ BASE=/var/task
+ EXE=/var/task/bin/playground
+ HOME=/tmp
+ export HOME
+ export RELEASE_READ_ONLY=true
+ RELEASE_READ_ONLY=true
+ export LD_LIBRARY_PATH=/lib64:/usr/lib64:/var/runtime:/var/runtime/lib:/var/task:/var/task/lib:/opt/lib:/var/task/lib/elixir_runtime-0.1.0/priv
+ LD_LIBRARY_PATH=/lib64:/usr/lib64:/var/runtime:/var/runtime/lib:/var/task:/var/task/lib:/opt/lib:/var/task/lib/elixir_runtime-0.1.0/priv
+ /var/task/bin/playground start
/var/task/erts-10.6.4/bin/beam.smp: /lib64/libtinfo.so.6: no version information available (required by /var/task/erts-10.6.4/bin/beam.smp)
/var/task/erts-10.6.4/bin/beam.smp: /lib64/libz.so.1: version `ZLIB_1.2.7.1' not found (required by /var/task/erts-10.6.4/bin/beam.smp)
/var/task/erts-10.6.4/bin/beam.smp: /lib64/libm.so.6: version `GLIBC_2.29' not found (required by /var/task/erts-10.6.4/bin/beam.smp)
END RequestId: 8129d07b-d4f2-4c9c-878e-9587c4f5bce6
REPORT RequestId: 8129d07b-d4f2-4c9c-878e-9587c4f5bce6 Duration: 662.47 ms Billed Duration: 663 ms Memory Size: 128 MB Max Memory Used: 5 MB
RequestId: 8129d07b-d4f2-4c9c-878e-9587c4f5bce6 Error: Runtime exited with error: exit status 1
Runtime.ExitError
```

Start by inspecting the /var/task/bootstrap entry point and the /var/task/bin/playground runtime invocation shown in the log. Reproduce the custom runtime in AWS Lambda and investigate the reported shared-library version requirements for libtinfo, libz, and libm. Done means the Elixir runtime starts without these dependency errors.

Written by the indexing model from the issue text.