Investigate flaky test-http-server-consumed-timeout on FreeBSD

[Trott]

https://ci.nodejs.org/job/node-test-commit-freebsd/3211/nodes=freebsd10-64/console

not ok 512 parallel/test-http-server-consumed-timeout
# 
# assert.js:89
#   throw new assert.AssertionError({
#   ^
# AssertionError: Should not happen
#     at IncomingMessage.req.setTimeout (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-consumed-timeout.js:14:5)
#     at emitOne (events.js:96:13)
#     at IncomingMessage.emit (events.js:188:7)
#     at Socket.<anonymous> (_http_server.js:307:50)
#     at emitNone (events.js:86:13)
#     at Socket.emit (events.js:185:7)
#     at Socket._onTimeout (net.js:333:8)
#     at tryOnTimeout (timers.js:224:11)
#     at Timer.listOnTimeout (timers.js:198:5)
  ---
  duration_ms: 0.650

[Trott]

Another one: https://ci.nodejs.org/job/node-test-commit-freebsd/3273/nodes=freebsd10-64/console

not ok 512 parallel/test-http-server-consumed-timeout
# 
# assert.js:89
#   throw new assert.AssertionError({
#   ^
# AssertionError: Should not happen
#     at IncomingMessage.req.setTimeout (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-consumed-timeout.js:14:5)
#     at emitOne (events.js:96:13)
#     at IncomingMessage.emit (events.js:188:7)
#     at Socket.<anonymous> (_http_server.js:307:50)
#     at emitNone (events.js:86:13)
#     at Socket.emit (events.js:185:7)
#     at Socket._onTimeout (net.js:333:8)
#     at tryOnTimeout (timers.js:224:11)
#     at Timer.listOnTimeout (timers.js:198:5)
  ---
  duration_ms: 0.597