std::time::Duration::from_secs_f64 behavior is changed in Rust 1.63.

related python test:

• test_os::test_utime_by_indexed
• test_os::test_utime_by_times

test command:

• cargo +stable run Lib/test/test_os.py -k utime -v
• cargo +1.62.1 run Lib/test/test_os.py -k utime -v

Rust issue including minimal reproducible code

• std::time::Duration::from_secs_f64 behavior changed in 1.63.0 rust-lang/rust#100480

To-do

We will stay on 1.62.1 until checking if it is a rust bug or intended change.

Once it is resolved:

• Revert CI changes set CI toolchain to 1.62.1 #4046