tzdb::local_tz() function get None in linux, expect get Some value .

[baoyachi]

~ uname -a
~ Linux 3.10.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

~ timedatectl
      Local time: Tue 2022-08-09 17:46:20 CST
  Universal time: Tue 2022-08-09 09:46:20 UTC
        RTC time: Tue 2022-08-09 09:46:20
       Time zone: Asia/Shanghai (CST, +0800)
     NTP enabled: yes
NTP synchronized: yes
 RTC in local TZ: no
      DST active: n/a

[Kijewski]

"Asia/Shanghai" is contained in the shipped database, so the problem probably lies with getting the timezone name: iana_time_zone::get_timezone()

Linux 3.10 is ancient, but it should still be supported. Which distribution do you use. Can you show be the output of lsb_release -a?

[baoyachi]

"Asia/Shanghai" is contained in the shipped database, so the problem probably lies with getting the timezone name: iana_time_zone::get_timezone()

Linux 3.10 is ancient, but it should still be supported. Which distribution do you use. Can you show be the output of lsb_release -a?

~  lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-noarch
Distributor ID:	CentOS
Description:	CentOS Linux release 7.9.2009 (Core)
Release:	7.9.2009
Codename:	Core
~

[Kijewski]

I could verify the problem on CentOS 7, and filed an issue at strawlab/iana-time-zone#47. Will work on it tomorrow if no one else does in the meantime. :)

→ strawlab/iana-time-zone#48

[Kijewski]

Fixed in v0.4.1. Thank you for the bug report!