Train results for text classification

I’m trying to get train results for text classification (https://github.com/huggingface/transformers/blob/main/examples/flax/text-classification)
using the following cmd:

export TASK_NAME=mrpc

python run_flax_glue.py \
  --model_name_or_path bert-base-cased \
  --task_name ${TASK_NAME} \
  --max_seq_length 128 \
  --learning_rate 2e-5 \
  --num_train_epochs 3 \
  --per_device_train_batch_size 4 \
  --eval_steps 100 \
  --output_dir ./$TASK_NAME/ \
  --evaluation_strategy epoch \
  --logging_dir ./$TASK_NAME/ \
  --logging_strategy epoch \
  --train_file ./$TASK_NAME/train.json \
  --overwrite_output_dir \
  --logging_steps 10 \
  --do_train \
  --do_eval

Unfortunately output folder does not contain expected train_results.json (like here How to monitor both train and validation metrics at the same step? - #13 by lewtun). In my case, the output folder is as follows:

drwxrwxr-x 2 root root       180 Nov 21 21:23 ./
drwxrwxr-x 3 root root       140 Nov 21 21:41 ../
-rw-rw-r-- 1 root root       682 Nov 21 21:42 config.json
-rw-rw-r-- 1 root root        78 Nov 21 21:42 eval_results.json
-rw-rw-r-- 1 root root 433254456 Nov 21 21:42 flax_model.msgpack
-rw-rw-r-- 1 root root       125 Nov 21 21:42 special_tokens_map.json
-rw-rw-r-- 1 root root    669188 Nov 21 21:42 tokenizer.json
-rw-rw-r-- 1 root root      1191 Nov 21 21:42 tokenizer_config.json
-rw-rw-r-- 1 root root    213450 Nov 21 21:42 vocab.txt

Any hint/advice how to get train results for this model?