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Auto merge of #121087 - oli-obk:eager_const_failures, r=lcnr
Always evaluate free constants and statics, even if previous errors occurred work towards https://github.com/rust-lang/rust/issues/79738 We will need to evaluate static items before the `definitions.freeze()` below, as we will start creating new `DefId`s (for nested allocations) within the `eval_static_initializer` query. But even without that motivation, this is a good change. Hard errors should always be reported and not silenced if other errors happened earlier.
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ba2139afd6
@ -13,8 +13,6 @@
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const ARR: [i32; 2] = [1, 2];
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const REF: &i32 = &ARR[idx()]; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true.
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const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
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//~^ ERROR: failed
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const fn idx() -> usize {
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1
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@ -35,9 +33,6 @@ fn main() {
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x[const { idx() }]; // Ok, should not produce stderr.
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x[const { idx4() }]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays.
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const { &ARR[idx()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true.
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const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true.
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//
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//~^^ ERROR: failed
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let y = &x;
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y[0]; // Ok, referencing shouldn't affect this lint. See the issue 6021
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@ -1,17 +1,5 @@
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error[E0080]: evaluation of `main::{constant#3}` failed
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--> $DIR/test.rs:38:14
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LL | const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true.
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| ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4
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note: erroneous constant encountered
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--> $DIR/test.rs:38:5
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LL | const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true.
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| ^^^^^^^^^^^^^^^^^^^^^^
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error: indexing may panic
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--> $DIR/test.rs:29:5
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--> $DIR/test.rs:27:5
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LL | x[index];
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| ^^^^^^^^
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@ -21,7 +9,7 @@ LL | x[index];
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= help: to override `-D warnings` add `#[allow(clippy::indexing_slicing)]`
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error: indexing may panic
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--> $DIR/test.rs:47:5
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--> $DIR/test.rs:42:5
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LL | v[0];
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| ^^^^
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@ -29,7 +17,7 @@ LL | v[0];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/test.rs:48:5
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--> $DIR/test.rs:43:5
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LL | v[10];
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| ^^^^^
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@ -37,7 +25,7 @@ LL | v[10];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/test.rs:49:5
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--> $DIR/test.rs:44:5
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LL | v[1 << 3];
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| ^^^^^^^^^
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@ -45,7 +33,7 @@ LL | v[1 << 3];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/test.rs:55:5
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--> $DIR/test.rs:50:5
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LL | v[N];
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| ^^^^
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@ -53,19 +41,12 @@ LL | v[N];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/test.rs:56:5
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--> $DIR/test.rs:51:5
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LL | v[M];
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| ^^^^
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error[E0080]: evaluation of constant value failed
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--> $DIR/test.rs:16:24
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LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
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| ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4
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error: aborting due to 6 previous errors
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error: aborting due to 8 previous errors
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For more information about this error, try `rustc --explain E0080`.
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@ -13,8 +13,6 @@
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const ARR: [i32; 2] = [1, 2];
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const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-restriction-lint-in-const` default is false.
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//~^ ERROR: indexing may panic
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const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
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//~^ ERROR: indexing may panic
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const fn idx() -> usize {
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1
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@ -9,29 +9,20 @@ LL | const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-re
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= note: `-D clippy::indexing-slicing` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::indexing_slicing)]`
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:16:24
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LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
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| ^^^^^^^^^^^
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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= note: the suggestion might not be applicable in constant blocks
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error[E0080]: evaluation of `main::{constant#3}` failed
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--> $DIR/indexing_slicing_index.rs:48:14
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--> $DIR/indexing_slicing_index.rs:46:14
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LL | const { &ARR[idx4()] };
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| ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4
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note: erroneous constant encountered
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--> $DIR/indexing_slicing_index.rs:48:5
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--> $DIR/indexing_slicing_index.rs:46:5
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LL | const { &ARR[idx4()] };
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| ^^^^^^^^^^^^^^^^^^^^^^
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:29:5
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--> $DIR/indexing_slicing_index.rs:27:5
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LL | x[index];
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| ^^^^^^^^
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@ -39,7 +30,7 @@ LL | x[index];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: index is out of bounds
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--> $DIR/indexing_slicing_index.rs:32:5
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--> $DIR/indexing_slicing_index.rs:30:5
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LL | x[4];
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| ^^^^
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@ -48,13 +39,13 @@ LL | x[4];
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= help: to override `-D warnings` add `#[allow(clippy::out_of_bounds_indexing)]`
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error: index is out of bounds
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--> $DIR/indexing_slicing_index.rs:34:5
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--> $DIR/indexing_slicing_index.rs:32:5
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LL | x[1 << 3];
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| ^^^^^^^^^
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:45:14
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--> $DIR/indexing_slicing_index.rs:43:14
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LL | const { &ARR[idx()] };
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| ^^^^^^^^^^
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@ -63,7 +54,7 @@ LL | const { &ARR[idx()] };
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= note: the suggestion might not be applicable in constant blocks
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:48:14
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--> $DIR/indexing_slicing_index.rs:46:14
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LL | const { &ARR[idx4()] };
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| ^^^^^^^^^^^
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@ -72,13 +63,13 @@ LL | const { &ARR[idx4()] };
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= note: the suggestion might not be applicable in constant blocks
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error: index is out of bounds
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--> $DIR/indexing_slicing_index.rs:55:5
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--> $DIR/indexing_slicing_index.rs:53:5
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LL | y[4];
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| ^^^^
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:58:5
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--> $DIR/indexing_slicing_index.rs:56:5
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LL | v[0];
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| ^^^^
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@ -86,7 +77,7 @@ LL | v[0];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:60:5
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--> $DIR/indexing_slicing_index.rs:58:5
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LL | v[10];
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| ^^^^^
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@ -94,7 +85,7 @@ LL | v[10];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:62:5
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--> $DIR/indexing_slicing_index.rs:60:5
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LL | v[1 << 3];
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| ^^^^^^^^^
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@ -102,13 +93,13 @@ LL | v[1 << 3];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: index is out of bounds
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--> $DIR/indexing_slicing_index.rs:70:5
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--> $DIR/indexing_slicing_index.rs:68:5
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LL | x[N];
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| ^^^^
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:73:5
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--> $DIR/indexing_slicing_index.rs:71:5
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LL | v[N];
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| ^^^^
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@ -116,7 +107,7 @@ LL | v[N];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: indexing may panic
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--> $DIR/indexing_slicing_index.rs:75:5
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--> $DIR/indexing_slicing_index.rs:73:5
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LL | v[M];
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| ^^^^
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@ -124,17 +115,11 @@ LL | v[M];
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= help: consider using `.get(n)` or `.get_mut(n)` instead
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error: index is out of bounds
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--> $DIR/indexing_slicing_index.rs:79:13
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--> $DIR/indexing_slicing_index.rs:77:13
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LL | let _ = x[4];
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| ^^^^
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error[E0080]: evaluation of constant value failed
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--> $DIR/indexing_slicing_index.rs:16:24
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LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
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| ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4
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error: aborting due to 17 previous errors
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error: aborting due to 15 previous errors
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For more information about this error, try `rustc --explain E0080`.
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