RE to extract all individual lines not containing

Question

I'm somewhat new to re2 & regexextract, but I'm attempting to extract all lines containing:

FAILED

any attributes (attr#) that are not 0. (attr1, attr2, & attr3 are negligible)

attr8 > 250

Here's my data from cell B2:

/entry_a    0:0:0:0  brand1   SN:7384705       attr1:B2  attr2:[100]   attr3:(6)  FAILED  attr4:0    attr5:0  attr8:255
/entry_b    2:0:0:0  brand2   SN:HS749435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:33   attr5:0  attr7:0
/entry_c    3:0:0:0  brand2   SN:HS749475      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr7:0
/entry_d    4:0:0:0  brand2   SN:HS747430      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:16   attr5:0  attr6:212   attr7:212
/entry_e    5:0:0:0  brand2   SN:HS746435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:14   attr5:0  attr6:1233  attr7:1233
/entry_f    6:0:0:0  brand2   SN:HS74C438      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr7:0
/entry_g    6:0:1:0  brand2   SN:HS774635      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:135  attr5:0  attr6:3     attr7:3
/entry_h    6:0:2:0  brand2   SN:HS749432      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:60   attr5:0  attr6:12    attr7:12
/entry_i    6:0:3:0  brand2   SN:HS747435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr6:842   attr7:842
/entry_j    6:0:4:0  brand2   SN:HS749433      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr7:0
/entry_k    6:0:5:0  brand2   SN:HS7483F4      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr7:0
/entry_l    6:0:6:0  brand2   SN:H7D84735      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:1    attr5:0  attr6:190   attr7:190
/entry_m    6:0:7:0  brand2   SN:HS749436      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr6:11    attr7:11

Here's what I'm looking to get in cell C2:

/entry_a    0:0:0:0  brand1   SN:7384705       attr1:B2  attr2:[100]   attr3:(6)  FAILED  attr4:0    attr5:0  attr8:255
/entry_b    2:0:0:0  brand2   SN:HS749435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:33   attr5:0  attr7:0
/entry_d    4:0:0:0  brand2   SN:HS747430      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:16   attr5:0  attr6:212   attr7:212
/entry_e    5:0:0:0  brand2   SN:HS746435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:14   attr5:0  attr6:1233  attr7:1233
/entry_g    6:0:1:0  brand2   SN:HS774635      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:135  attr5:0  attr6:3     attr7:3
/entry_h    6:0:2:0  brand2   SN:HS749432      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:60   attr5:0  attr6:12    attr7:12
/entry_i    6:0:3:0  brand2   SN:HS747435      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr6:842   attr7:842
/entry_l    6:0:6:0  brand2   SN:H7D84735      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:1    attr5:0  attr6:190   attr7:190
/entry_m    6:0:7:0  brand2   SN:HS749436      attr1:C3  attr2:[3000]  attr3:(3)  PASSED  attr4:0    attr5:0  attr6:11    attr7:11

I've tried different variations of this:

=ArrayFormula(REGEXEXTRACT($B2:B,"(?ms).*"))

which gives me everything or an error, and have yet been able to get everything I need. How do I get there??

++ bonus points if you can inform me how to get this in cell D2:

SN:7384705
SN:HS749435
SN:HS747430
SN:HS746435
SN:HS774635
SN:HS749432
SN:HS747435
SN:H7D84735
SN:HS749436

Thanks in advance!!