Rollup merge of rust-lang#120015 - Zalathar:format, r=dtolnay

coverage: Format all coverage tests with `rustfmt`

As suggested by <rust-lang#119984 (comment)>.

Test files in `tests/` are normally ignored by `x fmt`, but sometimes those files end up being run through `rustfmt` anyway, either by `rust-analyzer` or by hand.

When that happens, it's annoying to have to manually revert formatting changes that are unrelated to the actual changes being made. So it's helpful for the tests in the repository to already have standard formatting beforehand.

However, there are several coverage tests that deliberately use non-standard formatting, so that line counts reveal more information about where code regions begin and end. In those cases, we can use `#[rustfmt::skip]` to prevent that code from being disturbed.

``@rustbot`` label +A-code-coverage

Author: Nadrieril

tests/coverage/abort.cov-map

@@ -1,5 +1,5 @@
 Function name: abort::main
-Raw bytes (105): 0x[01, 01, 12, 01, 47, 05, 09, 03, 0d, 42, 11, 03, 0d, 11, 3e, 42, 11, 03, 0d, 3b, 15, 11, 3e, 42, 11, 03, 0d, 15, 36, 3b, 15, 11, 3e, 42, 11, 03, 0d, 05, 09, 0d, 01, 0d, 01, 01, 1b, 03, 02, 0b, 00, 18, 42, 01, 0c, 00, 19, 11, 00, 1a, 02, 0a, 3e, 02, 0a, 00, 0b, 3b, 02, 0c, 00, 19, 15, 00, 1a, 00, 31, 36, 00, 31, 00, 32, 33, 04, 0c, 00, 19, 05, 00, 1a, 00, 31, 09, 00, 31, 00, 32, 47, 01, 09, 00, 17, 0d, 02, 05, 01, 02]
+Raw bytes (105): 0x[01, 01, 12, 01, 47, 05, 09, 03, 0d, 42, 11, 03, 0d, 11, 3e, 42, 11, 03, 0d, 3b, 15, 11, 3e, 42, 11, 03, 0d, 15, 36, 3b, 15, 11, 3e, 42, 11, 03, 0d, 05, 09, 0d, 01, 0e, 01, 01, 1b, 03, 02, 0b, 00, 18, 42, 01, 0c, 00, 19, 11, 00, 1a, 02, 0a, 3e, 02, 0a, 00, 0b, 3b, 02, 0c, 00, 19, 15, 00, 1a, 00, 31, 36, 00, 31, 00, 32, 33, 04, 0c, 00, 19, 05, 00, 1a, 00, 31, 09, 00, 31, 00, 32, 47, 01, 09, 00, 17, 0d, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 18
@@ -22,7 +22,7 @@ Number of expressions: 18
 - expression 16 operands: lhs = Expression(0, Add), rhs = Counter(3)
 - expression 17 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 13
-- Code(Counter(0)) at (prev + 13, 1) to (start + 1, 27)
+- Code(Counter(0)) at (prev + 14, 1) to (start + 1, 27)
 - Code(Expression(0, Add)) at (prev + 2, 11) to (start + 0, 24)
     = (c0 + (c1 + c2))
 - Code(Expression(16, Sub)) at (prev + 1, 12) to (start + 0, 25)

tests/coverage/abort.coverage

@@ -10,6 +10,7 @@
    LL|     12|    }
    LL|     12|}
    LL|       |
+   LL|       |#[rustfmt::skip]
    LL|      1|fn main() -> Result<(), u8> {
    LL|      1|    let mut countdown = 10;
    LL|     11|    while countdown > 0 {

tests/coverage/abort.rs

@@ -10,6 +10,7 @@ extern "C" fn might_abort(should_abort: bool) {
     }
 }
 
+#[rustfmt::skip]
 fn main() -> Result<(), u8> {
     let mut countdown = 10;
     while countdown > 0 {

tests/coverage/async.cov-map

@@ -1,105 +1,105 @@
 Function name: async::c
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 07, 01, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 09, 01, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 7, 1) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 9, 1) to (start + 0, 25)
 
 Function name: async::c::{closure#0}
-Raw bytes (28): 0x[01, 01, 02, 01, 05, 05, 02, 04, 01, 07, 19, 01, 0e, 05, 02, 09, 00, 0a, 02, 02, 09, 00, 0a, 07, 02, 01, 00, 02]
+Raw bytes (28): 0x[01, 01, 02, 01, 05, 05, 02, 04, 01, 09, 19, 01, 0e, 05, 02, 09, 00, 0a, 02, 02, 09, 00, 0a, 07, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Expression(0, Sub)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 7, 25) to (start + 1, 14)
+- Code(Counter(0)) at (prev + 9, 25) to (start + 1, 14)
 - Code(Counter(1)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (c0 - c1)
 - Code(Expression(1, Add)) at (prev + 2, 1) to (start + 0, 2)
     = (c1 + (c0 - c1))
 
 Function name: async::d
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 0f, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 11, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 15, 1) to (start + 0, 20)
+- Code(Counter(0)) at (prev + 17, 1) to (start + 0, 20)
 
 Function name: async::d::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 0f, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 11, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 15, 20) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 17, 20) to (start + 0, 25)
 
 Function name: async::e (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 11, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 13, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 17, 1) to (start + 0, 20)
+- Code(Zero) at (prev + 19, 1) to (start + 0, 20)
 
 Function name: async::e::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 11, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 13, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 17, 20) to (start + 0, 25)
+- Code(Zero) at (prev + 19, 20) to (start + 0, 25)
 
 Function name: async::f
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 13, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 15, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 19, 1) to (start + 0, 20)
+- Code(Counter(0)) at (prev + 21, 1) to (start + 0, 20)
 
 Function name: async::f::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 13, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 15, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 19, 20) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 21, 20) to (start + 0, 25)
 
 Function name: async::foo (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 01, 00, 1e]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 17, 01, 00, 1e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 21, 1) to (start + 0, 30)
+- Code(Zero) at (prev + 23, 1) to (start + 0, 30)
 
 Function name: async::foo::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 1e, 00, 2d]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 17, 1e, 00, 2d]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 21, 30) to (start + 0, 45)
+- Code(Zero) at (prev + 23, 30) to (start + 0, 45)
 
 Function name: async::g
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 17, 01, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 19, 01, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 23, 1) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 25, 1) to (start + 0, 23)
 
 Function name: async::g::{closure#0} (unused)
-Raw bytes (69): 0x[01, 01, 00, 0d, 00, 17, 17, 01, 0c, 00, 02, 09, 00, 0a, 00, 00, 0e, 00, 11, 00, 00, 12, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 09, 00, 0a, 00, 00, 0e, 00, 11, 00, 00, 12, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (69): 0x[01, 01, 00, 0d, 00, 19, 17, 01, 0c, 00, 02, 09, 00, 0a, 00, 00, 0e, 00, 11, 00, 00, 12, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 09, 00, 0a, 00, 00, 0e, 00, 11, 00, 00, 12, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 13
-- Code(Zero) at (prev + 23, 23) to (start + 1, 12)
+- Code(Zero) at (prev + 25, 23) to (start + 1, 12)
 - Code(Zero) at (prev + 2, 9) to (start + 0, 10)
 - Code(Zero) at (prev + 0, 14) to (start + 0, 17)
 - Code(Zero) at (prev + 0, 18) to (start + 0, 23)
@@ -114,20 +114,20 @@ Number of file 0 mappings: 13
 - Code(Zero) at (prev + 2, 1) to (start + 0, 2)
 
 Function name: async::h
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 1f, 01, 00, 16]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 21, 01, 00, 16]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 31, 1) to (start + 0, 22)
+- Code(Counter(0)) at (prev + 33, 1) to (start + 0, 22)
 
 Function name: async::h::{closure#0} (unused)
-Raw bytes (44): 0x[01, 01, 00, 08, 00, 1f, 16, 03, 0c, 00, 04, 09, 00, 0a, 00, 00, 0e, 00, 13, 00, 00, 14, 00, 19, 00, 00, 1a, 00, 1b, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (44): 0x[01, 01, 00, 08, 00, 21, 16, 03, 0c, 00, 04, 09, 00, 0a, 00, 00, 0e, 00, 13, 00, 00, 14, 00, 19, 00, 00, 1a, 00, 1b, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 8
-- Code(Zero) at (prev + 31, 22) to (start + 3, 12)
+- Code(Zero) at (prev + 33, 22) to (start + 3, 12)
 - Code(Zero) at (prev + 4, 9) to (start + 0, 10)
 - Code(Zero) at (prev + 0, 14) to (start + 0, 19)
 - Code(Zero) at (prev + 0, 20) to (start + 0, 25)
@@ -137,22 +137,22 @@ Number of file 0 mappings: 8
 - Code(Zero) at (prev + 2, 1) to (start + 0, 2)
 
 Function name: async::i
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 28, 01, 00, 13]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 2a, 01, 00, 13]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 40, 1) to (start + 0, 19)
+- Code(Counter(0)) at (prev + 42, 1) to (start + 0, 19)
 
 Function name: async::i::{closure#0}
-Raw bytes (78): 0x[01, 01, 02, 07, 21, 19, 1d, 0e, 01, 28, 13, 04, 0c, 0d, 05, 09, 00, 0a, 01, 00, 0e, 00, 12, 05, 00, 13, 00, 18, 09, 00, 1c, 00, 21, 0d, 00, 27, 00, 2a, 15, 00, 2b, 00, 30, 1d, 01, 09, 00, 0a, 11, 00, 0e, 00, 11, 25, 00, 12, 00, 17, 29, 00, 1b, 00, 20, 1d, 00, 24, 00, 26, 21, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
+Raw bytes (78): 0x[01, 01, 02, 07, 21, 19, 1d, 0e, 01, 2a, 13, 04, 0c, 0d, 05, 09, 00, 0a, 01, 00, 0e, 00, 12, 05, 00, 13, 00, 18, 09, 00, 1c, 00, 21, 0d, 00, 27, 00, 2a, 15, 00, 2b, 00, 30, 1d, 01, 09, 00, 0a, 11, 00, 0e, 00, 11, 25, 00, 12, 00, 17, 29, 00, 1b, 00, 20, 1d, 00, 24, 00, 26, 21, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Expression(1, Add), rhs = Counter(8)
 - expression 1 operands: lhs = Counter(6), rhs = Counter(7)
 Number of file 0 mappings: 14
-- Code(Counter(0)) at (prev + 40, 19) to (start + 4, 12)
+- Code(Counter(0)) at (prev + 42, 19) to (start + 4, 12)
 - Code(Counter(3)) at (prev + 5, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 14) to (start + 0, 18)
 - Code(Counter(1)) at (prev + 0, 19) to (start + 0, 24)
@@ -169,14 +169,14 @@ Number of file 0 mappings: 14
     = ((c6 + c7) + c8)
 
 Function name: async::j
-Raw bytes (53): 0x[01, 01, 02, 07, 0d, 05, 09, 09, 01, 33, 01, 13, 0c, 05, 14, 09, 00, 0a, 01, 00, 0e, 00, 1b, 05, 00, 1f, 00, 27, 09, 01, 09, 00, 0a, 11, 00, 0e, 00, 1a, 09, 00, 1e, 00, 20, 0d, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
+Raw bytes (53): 0x[01, 01, 02, 07, 0d, 05, 09, 09, 01, 35, 01, 13, 0c, 05, 14, 09, 00, 0a, 01, 00, 0e, 00, 1b, 05, 00, 1f, 00, 27, 09, 01, 09, 00, 0a, 11, 00, 0e, 00, 1a, 09, 00, 1e, 00, 20, 0d, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Expression(1, Add), rhs = Counter(3)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 9
-- Code(Counter(0)) at (prev + 51, 1) to (start + 19, 12)
+- Code(Counter(0)) at (prev + 53, 1) to (start + 19, 12)
 - Code(Counter(1)) at (prev + 20, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 14) to (start + 0, 27)
 - Code(Counter(1)) at (prev + 0, 31) to (start + 0, 39)
@@ -188,50 +188,50 @@ Number of file 0 mappings: 9
     = ((c1 + c2) + c3)
 
 Function name: async::j::c
-Raw bytes (28): 0x[01, 01, 02, 01, 05, 05, 02, 04, 01, 35, 05, 01, 12, 05, 02, 0d, 00, 0e, 02, 0a, 0d, 00, 0e, 07, 02, 05, 00, 06]
+Raw bytes (28): 0x[01, 01, 02, 01, 05, 05, 02, 04, 01, 37, 05, 01, 12, 05, 02, 0d, 00, 0e, 02, 0a, 0d, 00, 0e, 07, 02, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Expression(0, Sub)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 53, 5) to (start + 1, 18)
+- Code(Counter(0)) at (prev + 55, 5) to (start + 1, 18)
 - Code(Counter(1)) at (prev + 2, 13) to (start + 0, 14)
 - Code(Expression(0, Sub)) at (prev + 10, 13) to (start + 0, 14)
     = (c0 - c1)
 - Code(Expression(1, Add)) at (prev + 2, 5) to (start + 0, 6)
     = (c1 + (c0 - c1))
 
 Function name: async::j::d
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 44, 05, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 46, 05, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 68, 5) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 70, 5) to (start + 0, 23)
 
 Function name: async::j::f
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 45, 05, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 47, 05, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 69, 5) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 71, 5) to (start + 0, 23)
 
 Function name: async::k (unused)
-Raw bytes (29): 0x[01, 01, 00, 05, 00, 4d, 01, 01, 0c, 00, 02, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (29): 0x[01, 01, 00, 05, 00, 4f, 01, 01, 0c, 00, 02, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 5
-- Code(Zero) at (prev + 77, 1) to (start + 1, 12)
+- Code(Zero) at (prev + 79, 1) to (start + 1, 12)
 - Code(Zero) at (prev + 2, 14) to (start + 0, 16)
 - Code(Zero) at (prev + 1, 14) to (start + 0, 16)
 - Code(Zero) at (prev + 1, 14) to (start + 0, 16)
 - Code(Zero) at (prev + 2, 1) to (start + 0, 2)
 
 Function name: async::l
-Raw bytes (37): 0x[01, 01, 04, 01, 07, 05, 09, 0f, 02, 09, 05, 05, 01, 55, 01, 01, 0c, 02, 02, 0e, 00, 10, 05, 01, 0e, 00, 10, 09, 01, 0e, 00, 10, 0b, 02, 01, 00, 02]
+Raw bytes (37): 0x[01, 01, 04, 01, 07, 05, 09, 0f, 02, 09, 05, 05, 01, 57, 01, 01, 0c, 02, 02, 0e, 00, 10, 05, 01, 0e, 00, 10, 09, 01, 0e, 00, 10, 0b, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -240,7 +240,7 @@ Number of expressions: 4
 - expression 2 operands: lhs = Expression(3, Add), rhs = Expression(0, Sub)
 - expression 3 operands: lhs = Counter(2), rhs = Counter(1)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 85, 1) to (start + 1, 12)
+- Code(Counter(0)) at (prev + 87, 1) to (start + 1, 12)
 - Code(Expression(0, Sub)) at (prev + 2, 14) to (start + 0, 16)
     = (c0 - (c1 + c2))
 - Code(Counter(1)) at (prev + 1, 14) to (start + 0, 16)
@@ -249,26 +249,26 @@ Number of file 0 mappings: 5
     = ((c2 + c1) + (c0 - (c1 + c2)))
 
 Function name: async::m
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 5d, 01, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 5f, 01, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 93, 1) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 95, 1) to (start + 0, 25)
 
 Function name: async::m::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 5d, 19, 00, 22]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 5f, 19, 00, 22]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 93, 25) to (start + 0, 34)
+- Code(Zero) at (prev + 95, 25) to (start + 0, 34)
 
 Function name: async::main
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 5f, 01, 08, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 61, 01, 08, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 95, 1) to (start + 8, 2)
+- Code(Counter(0)) at (prev + 97, 1) to (start + 8, 2)
 

tests/coverage/async.coverage

@@ -1,6 +1,8 @@
    LL|       |#![feature(coverage_attribute)]
+   LL|       |#![feature(custom_inner_attributes)] // for #![rustfmt::skip]
    LL|       |#![feature(noop_waker)]
    LL|       |#![allow(unused_assignments, dead_code)]
+   LL|       |#![rustfmt::skip]
    LL|       |// edition: 2018
    LL|       |// compile-flags: -Copt-level=1
    LL|       |

tests/coverage/async.rs

@@ -1,6 +1,8 @@
 #![feature(coverage_attribute)]
+#![feature(custom_inner_attributes)] // for #![rustfmt::skip]
 #![feature(noop_waker)]
 #![allow(unused_assignments, dead_code)]
+#![rustfmt::skip]
 // edition: 2018
 // compile-flags: -Copt-level=1