Add logging to docker container setup process

[sargun]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 947

• 0 of 11 (0.0%) changed or added relevant lines in 1 file are covered.
• 4 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.05%) to 25.904%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
executor/runtime/docker/docker.go	0	11	0.0%

Files with Coverage Reduction	New Missed Lines	%
launchguard/client/client.go	4	71.43%

Totals
Change from base Build 943:	-0.05%
Covered Lines:	2407
Relevant Lines:	9292

---

💛 - Coveralls

[codecov]

Codecov Report

Merging #124 into master will increase coverage by 0.02%.
The diff coverage is 90%.

@@            Coverage Diff             @@
##           master     #124      +/-   ##
==========================================
+ Coverage   35.68%   35.71%   +0.02%     
==========================================
  Files          65       65              
  Lines        7350     7353       +3     
==========================================
+ Hits         2623     2626       +3     
  Misses       4426     4426              
  Partials      301      301

Impacted Files	Coverage Δ
executor/runtime/docker/docker.go	50.74% <90%> (+0.14%)	⬆️