fix: check canonical field elements

[rakita]

No description provided.

[github-actions]

Valgrind Results:

==3869== Cachegrind, a cache and branch-prediction profiler
==3869== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==3869== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==3869== Command: target/release/snailtracer
==3869== 
--3869-- warning: L3 cache found, using its data for the LL simulation.
Running snailtracer example!
elapsed: 1.814880093s
==3869== 
==3869== I   refs:      429,371,777
==3869== I1  misses:          3,134
==3869== LLi misses:          2,806
==3869== I1  miss rate:        0.00%
==3869== LLi miss rate:        0.00%
==3869== 
==3869== D   refs:      206,205,195  (133,650,679 rd   + 72,554,516 wr)
==3869== D1  misses:        344,843  (    204,777 rd   +    140,066 wr)
==3869== LLd misses:        137,631  (      4,271 rd   +    133,360 wr)
==3869== D1  miss rate:         0.2% (        0.2%     +        0.2%  )
==3869== LLd miss rate:         0.1% (        0.0%     +        0.2%  )
==3869== 
==3869== LL refs:           347,977  (    207,911 rd   +    140,066 wr)
==3869== LL misses:         140,437  (      7,077 rd   +    133,360 wr)
==3869== LL miss rate:          0.0% (        0.0%     +        0.2%  )

[rakita]

Closing in favor of #1434