怎么看懂测试(testbird)输出的原生日志?

公司将IOS app给到了testbird做了兼容性测试, 在低版本上出现了一些问题, 测试人员反馈了问题并给到了一份log的日志文件, 但是里面都是原生日志, 看不太懂, 想问下怎么从中找到关键信息点?

日志类似这种:

Jun  8 14:05:07 iPhone6-ios1247 trustd[116] <Notice>: cert[0]: MissingIntermediate =(leaf)[force]> 0  
 Jun  8 14:05:07 iPhone6-ios1247 trustd[116] <Notice>: cert[0]: NonEmptySubject =(path)[]> 0  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] workspaceConnectedWithTaskPortRight: received task port  
 Jun  8 14:05:07 iPhone6-ios1247 HBuilder(libAccessibility.dylib)[569] <Notice>: Retrieving resting unlock: 0  
 Jun  8 14:05:07 iPhone6-ios1247 HBuilder(FrontBoardServices)[569] <Notice>: [FBSDisplaySource 1-1] silently connecting <FBSDisplayConfiguration: 0x28092c1c0; Main; mode: "375x667@2x 60Hz sRGB SDR">  
 Jun  8 14:05:07 iPhone6-ios1247 HBuilder(FrontBoardServices)[569] <Notice>: [FBSDisplaySource 1-1] initialized <FBSDisplayConfiguration: 0x28092c1c0; Main; mode: "375x667@2x 60Hz sRGB SDR">  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [SpringBoard:52] Attempting to acquire assertion for HBuilder:569: <BKProcessAssertion: 0x10174bcc0; "Resume" (activation:inf); id:\M-b\M^@\M-&FA68BD06B006>  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Add assertion: <BKProcessAssertion: 0x10174bcc0; id: 52-170BF366-CE5A-4641-A3E5-FA68BD06B006; name: Resume; state: active; reason: activation; duration: infs> {  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>:     owner = <BSProcessHandle: 0x10170f550; SpringBoard:52; valid: YES>;  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>:     flags = preventSuspend, preventThrottleDownUI, preventThrottleDownCPU, preventSuspendOnSleep;  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: }  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Activate assertion: <BKProcessAssertion: 0x10174bcc0; "Resume" (activation:inf); id:\M-b\M^@\M-&FA68BD06B006>  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [SpringBoard:52] Attempting to acquire assertion for HBuilder:569: <BKProcessAssertion: 0x1017378c0; "Deliver Message" (suspend:10s); id:\M-b\M^@\M-&FEB49A4980A9>  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Add assertion: <BKProcessAssertion: 0x1017378c0; id: 52-E7D45159-DCF2-4080-B16F-FEB49A4980A9; name: "Deliver Message"; state: active; reason: suspend; duration: 10.0s> {  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>:     owner = <BSProcessHandle: 0x10170f550; SpringBoard:52; valid: YES>;  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>:     flags = preventSuspend, preventThrottleDownUI, preventThrottleDownCPU, preventSuspendOnSleep;  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: }  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Activate assertion: <BKProcessAssertion: 0x1017378c0; "Deliver Message" (suspend:10s); id:\M-b\M^@\M-&FEB49A4980A9>  
 Jun  8 14:05:07 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Setting jetsam priority to 10 [0x10300]  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: Client relinquished <BKProcessAssertion: 0x10173b5b0; "UIApplicationLaunch" (activation:inf); id:\M-b\M^@\M-&12619F57FFEF>  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Deactivate assertion: <BKProcessAssertion: 0x10173b5b0; "UIApplicationLaunch" (activation:inf); id:\M-b\M^@\M-&12619F57FFEF>  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Scheduling allow-idle-sleep timer with interval: 180.0  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] New process assertion state; preventSuspend, preventThrottleDownUI, preventThrottleDownCPU, preventSuspendOnSleep (assertion 0x10173b5b0 added: (none); removed: wantsForegroundResourcePriority)  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: [HBuilder:569] Remove assertion: <BKProcessAssertion: 0x10173b5b0; "UIApplicationLaunch" (activation:inf); id:\M-b\M^@\M-&12619F57FFEF>  
 Jun  8 14:05:08 iPhone6-ios1247 assertiond[62] <Notice>: -[BKAssertion dealloc] - <0x10173b5b0>