Andre reported at http://g/chromeos-discuss/fdLkTmSClx0/discussion that his Pixelbook is rebooting sometimes when he opens the lid after suspending. He sent a feedback report at http://feedback/#/Report/85499832362.

CHROME VERSION 66.0.3359.203
CHROMEOS_RELEASE_BOARD eve-signed-mpkeys
CHROMEOS_RELEASE_DESCRIPTION 10452.99.0 (Official Build) stable-channel eve

...
321 | 2018-06-14 13:59:27 | ACPI Wake | Deep S3
322 | 2018-06-14 13:59:57 | ACPI Enter | S3
323 | 2018-06-14 14:00:09 | EC Event | Lid Open
324 | 2018-06-14 14:00:09 | ACPI Wake | Deep S3
325 | 2018-06-14 14:00:26 | ACPI Enter | S3
326 | 2018-06-14 14:19:50 | EC Event | Lid Open
327 | 2018-06-14 14:19:50 | ACPI Wake | Deep S3
328 | 2018-06-14 14:42:20 | ACPI Enter | S3
329 | 2018-06-14 14:42:58 | System boot | 27
330 | 2018-06-14 14:42:58 | EC Event | Panic Reset in previous boot
331 | 2018-06-14 14:42:58 | Power Fail
332 | 2018-06-14 14:42:58 | System Reset
333 | 2018-06-14 14:42:58 | ACPI Wake | Deep S5
334 | 2018-06-14 14:42:58 | Wake Source | Power Button | 0
335 | 2018-06-14 14:43:08 | Kernel Event | Clean Shutdown
336 | 2018-06-14 14:43:08 | ACPI Enter | S5
337 | 2018-06-14 14:48:42 | System boot | 28
338 | 2018-06-14 14:48:42 | EC Event | Lid Open
339 | 2018-06-14 14:48:42 | ACPI Wake | Deep S5
340 | 2018-06-14 14:48:42 | Wake Source | Power Button | 0

...
2018-06-14T14:38:59.392247-04:00 NOTICE temp_logger[19184]: 00:47 02:40 03:39 04:43 05:41 06:47 07:43
2018-06-14T14:39:59.433790-04:00 NOTICE temp_logger[19362]: 00:47 02:38 03:39 04:41 05:39 06:47 07:46
2018-06-14T14:40:59.454226-04:00 NOTICE temp_logger[19502]: 00:50 02:38 03:37 04:41 05:39 06:50 07:44
2018-06-14T14:41:59.475475-04:00 NOTICE temp_logger[19647]: 00:60 02:38 03:38 04:41 05:40 06:61 07:46
2018-06-14T14:42:17.163194-04:00 ERR kernel: [118783.206500] i2c_designware i2c_designware.1: i2c_dw_handle_tx_abort: slave address not acknowledged (7bit mode)
2018-06-14T14:42:17.169650-04:00 INFO session_manager[1172]: [INFO:session_manager_impl.cc(863)] LockScreen() method called.
2018-06-14T14:42:17.243834-04:00 INFO session_manager[1172]: [INFO:session_manager_impl.cc(868)] HandleLockScreenShown() method called.
2018-06-14T14:42:17.378649-04:00 INFO trunksd[1875]: Finished saving contexts.
2018-06-14T14:42:18.273380-04:00 INFO arc-oemcrypto[2534]: [WVOEMCrypto ../../../arc-oemcrypto-0.0.1/platform/arc-oemcrypto/widevine/oemcrypto_keybox.cc:166]Successfully loaded keybox from filesystem
2018-06-14T14:42:18.309573-04:00 NOTICE powerd_suspend[19752]: Going to suspend-to-RAM state: args=--suspend_duration=-1 --nosuspend_to_idle --wakeup_count=2576
2018-06-14T14:42:18.311677-04:00 INFO arc-oemcrypto[2534]: [WVOEMCrypto ../../../arc-oemcrypto-0.0.1/platform/arc-oemcrypto/widevine/oemcrypto_keybox.cc:166]Successfully loaded keybox from filesystem
2018-06-14T14:42:18.416042-04:00 NOTICE powerd_suspend[19809]: Disabling Bluetooth HCI mode change event before suspend
2018-06-14T14:42:18.534682-04:00 NOTICE powerd_suspend[19812]: Finalizing suspend
2018-06-14T14:42:18.539266-04:00 INFO kernel: [118784.582518] PM: suspend entry 2018-06-14 18:42:18.538418994 UTC
2018-06-14T14:43:01.429755-04:00 INFO kernel: [    0.000000] Initializing cgroup subsys cpuset
2018-06-14T14:43:01.429807-04:00 INFO kernel: [    0.000000] Initializing cgroup subsys cpu
2018-06-14T14:43:01.429809-04:00 INFO kernel: [    0.000000] Initializing cgroup subsys cpuacct
...

Todd, can you triage this?