Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/st.c b/st.c
|index 91e7077..a76d983 100644
|--- a/st.c
|+++ b/st.c
--------------------------
Patching file st.c using Plan A...
Hunk #1 failed at 36.
Hunk #2 failed at 44.
Hunk #3 succeeded at 67 (offset -4 lines).
Hunk #4 failed at 134.
Hunk #5 failed at 196.
Hunk #6 succeeded at 240 (offset -4 lines).
Hunk #7 failed at 443.
Hunk #8 succeeded at 530 (offset 4 lines).
Hunk #9 succeeded at 553 (offset -4 lines).
Hunk #10 succeeded at 612 (offset 4 lines).
Hunk #11 failed at 623.
Hunk #12 failed at 646.
Hunk #13 failed at 664.
Hunk #14 succeeded at 694 (offset -4 lines).
Hunk #15 succeeded at 714 (offset 4 lines).
Hunk #16 failed at 923.
Hunk #17 succeeded at 1049 (offset -7 lines).
Hunk #18 succeeded at 1070 (offset 4 lines).
Hunk #19 succeeded at 1077 (offset -7 lines).
Hunk #20 failed at 1194.
Hunk #21 failed at 1217.
Hunk #22 failed at 1338.
Hunk #23 failed at 1428.
Hunk #24 succeeded at 1647 (offset -48 lines).
Hunk #25 succeeded at 1749 (offset -7 lines).
Hunk #26 succeeded at 1771 (offset -48 lines).
Hunk #27 succeeded at 1910 (offset -7 lines).
Hunk #28 failed at 1941.
Hunk #29 succeeded at 1931 (offset -48 lines).
Hunk #30 succeeded at 1998 (offset -7 lines).
Hunk #31 succeeded at 2279 (offset -21 lines).
Hunk #32 failed at 2501.
Hunk #33 failed at 2514.
Hunk #34 succeeded at 2668 (offset -7 lines).
Hunk #35 succeeded at 2690 (offset -21 lines).
Hunk #36 failed at 2728.
Hunk #37 failed at 3036.
18 out of 37 hunks failed
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/st.h b/st.h
|index 818a6f8..514ec08 100644
|--- a/st.h
|+++ b/st.h
--------------------------
Patching file st.h using Plan A...
Hunk #1 succeeded at 22.
Hunk #2 succeeded at 90 (offset -2 lines).
done