Error with urlSession double free or corruption (fasttop) upgrade to swift 4.0.3

[csantanapr]

Doing a non blocking invoke using urlSession it fails with

Starting test Swift Whisk SDK tests using swift:4 should allow Swift actions to invoke other actions and not block at 2018-02-03 21:04:23.588
check failed for activation 9c418ab0f5424923818ab0f5420923ff: 


{
"logs":[
"2018-02-04T02:04:26.134158018Z stdout: Compiling","2018-02-04T02:04:26.134202437Z stdout: swiftc status is 0",
"2018-02-04T02:04:26.13420729Z  stdout: Linking",
"2018-02-04T02:04:26.65737652Z  stdout: ",
"2018-02-04T02:04:26.658329845Z stderr: *** Error in `/swift4Action/spm-build/.build/release/Action': double free or corruption (fasttop): 0x00007f4960000910 ***"]
}


Exception occurred during test execution: java.util.NoSuchElementException: key not found: activationId

It looks like is a known issue and fixed in 4.0.1+
https://bugs.swift.org/browse/SR-5936
https://bugs.swift.org/browse/SR-5972

Seems fixed in the latest 4.0.1 snapshot.

We need to pick up the new image version ibmcom/swift-ubuntu:4.0.3