memoryerror using generic esp8266 micropython binary?

[dony71]

I download generic esp8266 1M micropython binary from
https://micropython.org/download/esp8266/
and after that copy all files under src directory from this git
But after esp8266 reboot, repl shows memory error and reboot
Anything special so that I cannot use generic micropython binary?

load 0x40100000, len 30720, room 16
tail 0
chksum 0x68
load 0x3ffe8000, len 1012, room 8
tail 12
chksum 0x1c
ho 0 tail 12 room 4
load 0x3ffe8400, len 1080, room 12
tail 12
chksum 0x78
csum 0x78
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▒l▒▒l`▒Ē▒▒▒▒b▒r▒n▒#▒8▒▒
r▒▒▒▒▒8▒▒▒
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r▒▒▒▒▒8▒▒▒
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r▒▒▒▒I8▒
▒▒▒
▒lrr▒9l▒Ğ▒▒
▒▒b▒▒b▒$bĒ▒▒b|▒▒ƌ▒
▒l8~▒n▒n▒▒boot.py
2 boot.py wait...
1 boot.py wait...
sys.path=['.', '', '/lib', '/']
boot.py END
2 main.py wait...
1 main.py wait...
Setup WiFi interfaces
Still connected: ('192.168.100.88', '255.255.255.0', '192.168.100.1', '10.2.1.225')
start "soft" OTA
Wait 15 sec for soft-OTA connection on port 8267
2 Reset because: soft-OTA unknown error
1 Reset because: soft-OTA unknown error

 ets Jan  8 2013,rst cause:1, boot mode:(3,6)

load 0x40100000, len 30720, room 16
tail 0
chksum 0x68
load 0x3ffe8000, len 1012, room 8
tail 12
chksum 0x1c
ho 0 tail 12 room 4
load 0x3ffe8400, len 1080, room 12
tail 12
chksum 0x78
csum 0x78
▒▒▒▒8▒n▒▒>r▒▒▒n▒b
▒l▒▒l`▒Ē▒▒▒▒b▒r▒n▒#▒8▒▒
r▒▒▒▒▒8▒▒▒
▒
r▒▒▒▒I8▒▒▒
▒
r▒▒▒▒▒8▒
▒▒▒
▒lrr▒▒l▒Ğ▒▒
▒▒b▒▒b▒$bĒ▒▒b|▒▒ƌ▒
▒l8~▒n▒n▒▒boot.py
2 boot.py wait...
1 boot.py wait...
sys.path=['.', '', '/lib', '/']
boot.py END
2 main.py wait...
1 main.py wait...
Setup WiFi interfaces
Still connected: ('192.168.100.88', '255.255.255.0', '192.168.100.1', '10.2.1.225')
start webserver
restore py config _config_dim_level
Import error: no module named '_config_dim_level'
Web server started...
Still connected: ('192.168.100.88', '255.255.255.0', '192.168.100.1', '10.2.1.225')
Synchronize time from 'pool.ntp.org' ...
restore py config _config_timezone
Import error: no module named '_config_timezone'
old UTC.....: 2021-09-30T01:12:52+00:00
Error syncing time: [Errno 110] ETIMEDOUT, retry in 0 sec.
restore py config _config_timezone
Import error: no module named '_config_timezone'
new UTC.....: 2021-09-30T01:12:09+00:00
set from..: (2021, 9, 30, 3, 1, 12, 9, 486)
restore py config _config_timezone
Import error: no module named '_config_timezone'
set to....: (2021, 9, 30, 3, 1, 12, 9, 486)
restore py config _config_timezone
Import error: no module named '_config_timezone'
new local...: 2021-09-30T01:12:09+00:00
Update power timer: 686279560
Task exception wasn't retrieved
future: <Task> coro= <generator object 'periodical_tasks' at 3fff2ec0>
Traceback (most recent call last):
  File "uasyncio/core.py", line 1, in run_until_complete
  File "./webswitch.py", line 142, in periodical_tasks
  File "./tasks.py", line 19, in periodical_tasks
  File "./power_timer.py", line 52, in update_power_timer
MemoryError: memory a
Watchdog reset reason: Watchdog feed timeout
Reset reason: 'Watchdog feed timeout'
Reset device: 'Watchdog feed timeout'