$ rm .prove

$ cat t/test1.t
use Test::More tests => 1;
ok 1 == 1, 'A';

$ cat t/test2.t
use Test::More tests => 1;
ok 1 == 2, 'B';

$ cat t/test3.t
use Test::More tests => 1;
ok 1 == 1, 'C';

$ cat t/test4.t
use Test::More tests => 1;
ok 1 == 2, 'D';

$ prove -v --state=save t
t/test1.t ..
1..1
ok 1 - A
ok
t/test2.t ..
1..1
not ok 1 - B

#   Failed test 'B'
#   at t/test2.t line 2.
# Looks like you failed 1 test of 1.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests
t/test3.t ..
1..1
ok 1 - C
ok
t/test4.t ..
1..1
not ok 1 - D

#   Failed test 'D'
#   at t/test4.t line 2.
# Looks like you failed 1 test of 1.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests

Test Summary Report
-------------------
t/test2.t (Wstat: 256 Tests: 1 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
t/test4.t (Wstat: 256 Tests: 1 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
Files=4, Tests=4,  0 wallclock secs ( 0.03 usr  0.02 sys +  0.12 cusr  0.02 csys =  0.19 CPU)
Result: FAIL

$ cat .prove
---
generation: 1
last_run_time: 1519584062.28557
tests:
  t/test1.t:
    elapsed: 0.0381917953491211
    gen: 1
    last_pass_time: 1519584062.14733
    last_result: 0
    last_run_time: 1519584062.14733
    last_todo: 0
    seq: 1
    total_passes: 1
  t/test2.t:
    elapsed: 0.0359680652618408
    gen: 1
    last_fail_time: 1519584062.1927
    last_result: 2
    last_run_time: 1519584062.1927
    last_todo: 0
    seq: 2
    total_failures: 1
  t/test3.t:
    elapsed: 0.0373549461364746
    gen: 1
    last_pass_time: 1519584062.23968
    last_result: 0
    last_run_time: 1519584062.23968
    last_todo: 0
    seq: 3
    total_passes: 1
  t/test4.t:
    elapsed: 0.0356581211090088
    gen: 1
    last_fail_time: 1519584062.28471
    last_result: 2
    last_run_time: 1519584062.28471
    last_todo: 0
    seq: 4
    total_failures: 1
version: 1
...

$ prove -v --state=failed,save t
t/test2.t ..
1..1
not ok 1 - B

#   Failed test 'B'
#   at t/test2.t line 2.
# Looks like you failed 1 test of 1.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests
t/test4.t ..
1..1
not ok 1 - D

#   Failed test 'D'
#   at t/test4.t line 2.
# Looks like you failed 1 test of 1.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests
t/test1.t ..
1..1
ok 1 - A
ok
t/test3.t ..
1..1
ok 1 - C
ok

Test Summary Report
-------------------
t/test2.t (Wstat: 256 Tests: 1 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
t/test4.t (Wstat: 256 Tests: 1 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
Files=4, Tests=4,  0 wallclock secs ( 0.02 usr  0.01 sys +  0.12 cusr  0.02 csys =  0.17 CPU)
Result: FAIL

$ cat .prove
---
generation: 2
last_run_time: 1519584153.98762
tests:
  t/test1.t:
    elapsed: 0.0381758213043213
    gen: 2
    last_pass_time: 1519584153.94307
    last_result: 0
    last_run_time: 1519584153.94307
    last_todo: 0
    mtime: 1519583913
    seq: 7
    total_passes: 2
  t/test2.t:
    elapsed: 0.0387568473815918
    gen: 2
    last_fail_time: 1519584153.84872
    last_result: 2
    last_run_time: 1519584153.84872
    last_todo: 0
    mtime: 1519583940
    seq: 5
    total_failures: 2
  t/test3.t:
    elapsed: 0.0351169109344482
    gen: 2
    last_pass_time: 1519584153.98684
    last_result: 0
    last_run_time: 1519584153.98684
    last_todo: 0
    mtime: 1519583962
    seq: 8
    total_passes: 2
  t/test4.t:
    elapsed: 0.0388789176940918
    gen: 2
    last_fail_time: 1519584153.89626
    last_result: 2
    last_run_time: 1519584153.89626
    last_todo: 0
    mtime: 1519583950
    seq: 6
    total_failures: 2
version: 1
...