Looking at the latest canary runs, it seems that a lot of canaries are failing due to a timeout. Even though some of the reported failures say "did not complete due to infrastructure issues", it seem like to me that they just timed out.

The canary master hasn't passed since 2016-03-24.

Latest canary master failure:
https://uberchromegw.corp.google.com/i/chromeos/builders/master-release/builds/1905

For example, rambi-d-release shows these messages for HWTest ninja and banjo.
https://uberchromegw.corp.google.com/i/chromeos/builders/rambi-d-release-group/builds/1677

The suite job has another 0:59:38.907144 till timeout.
The suite job has another 0:29:34.812105 till timeout.
The suite job has another -1 day, 23:59:25.918047 till timeout.
Suite timed out. Started on 04-04-2016 [06:42:31], timed out on 04-04-2016 [08:47:01]
Suite job                               [ FAILED ]
Suite job                                 ABORT: 
security_ProtocolFamilies               [ FAILED ]
security_ProtocolFamilies                 ABORT: Timed out, did not run.
security_Minijail0                      [ FAILED ]
security_Minijail0                        ABORT: Timed out, did not run.
login_CryptohomeIncognito               [ FAILED ]
login_CryptohomeIncognito                 ABORT: Timed out, did not run.
security_StatefulPermissions            [ FAILED ]
security_StatefulPermissions              ABORT: Timed out, did not run.
login_LoginSuccess                      [ FAILED ]
login_LoginSuccess                        ABORT: Timed out, did not run.
security_SandboxedServices              [ FAILED ]
security_SandboxedServices                ABORT: Timed out, did not run.
login_RetrieveActiveSessions            [ FAILED ]
login_RetrieveActiveSessions              ABORT: Timed out, did not run.
login_MultipleSessions                  [ FAILED ]
login_MultipleSessions                    ABORT: Timed out, did not run.
login_SameSessionTwice                  [ FAILED ]
login_SameSessionTwice                    ABORT: Timed out, did not run.
login_GuestAndActualSession             [ FAILED ]
login_GuestAndActualSession               ABORT: Timed out, did not run.
platform_DMVerityBitCorruption.first    [ PASSED ]

I also found  Issue 516795 . +dgarrett@ since he seems to be making some work on canaries.

Assigning to current infra deputy.