From d17c04e4a220d6f7bf170eeb0f90498e215555fa Mon Sep 17 00:00:00 2001 From: Obei Sideg Date: Tue, 8 Apr 2025 05:31:24 +0300 Subject: [PATCH] Add test for `extern` without explicit ABI --- ...re-gate-explicit-extern-abis.current.fixed | 45 +++++++++++++++++++ ...e-gate-explicit-extern-abis.current.stderr | 22 +++++++++ ...explicit-extern-abis.current_feature.fixed | 45 +++++++++++++++++++ ...xplicit-extern-abis.current_feature.stderr | 22 +++++++++ ...ure-gate-explicit-extern-abis.future.fixed | 45 +++++++++++++++++++ ...re-gate-explicit-extern-abis.future.stderr | 22 +++++++++ ...explicit-extern-abis.future_feature.stderr | 26 +++++++++++ .../feature-gate-explicit-extern-abis.rs | 45 +++++++++++++++++++ .../suggest-libname-only-1.rs | 2 +- .../suggest-libname-only-1.stderr | 2 +- .../suggest-libname-only-2.rs | 2 +- .../suggest-libname-only-2.stderr | 2 +- .../lint/cli-lint-override.forbid_warn.stderr | 2 +- .../cli-lint-override.force_warn_deny.stderr | 2 +- tests/ui/lint/cli-lint-override.rs | 6 +-- .../lint/cli-lint-override.warn_deny.stderr | 2 +- tests/ui/parser/bad-lit-suffixes.stderr | 4 +- tests/ui/parser/lit-err-in-macro.stderr | 2 +- tests/ui/proc-macro/inner-attrs.rs | 2 +- tests/ui/proc-macro/inner-attrs.stderr | 2 +- 20 files changed, 287 insertions(+), 15 deletions(-) create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.fixed create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.stderr create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.fixed create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.stderr create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.fixed create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.stderr create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.future_feature.stderr create mode 100644 tests/ui/feature-gates/feature-gate-explicit-extern-abis.rs diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.fixed b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.fixed new file mode 100644 index 000000000000..525f78d162fc --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.fixed @@ -0,0 +1,45 @@ +// The purpose of this feature gate is to make something into a hard error in a +// future edition. Consequently, this test differs from most other feature gate +// tests. Instead of verifying that an error occurs when the feature gate is +// missing, it ensures that the hard error is only produced with the feature +// gate is present in the `future` edition -- and otherwise that only a warning +// is emitted. + +//@ revisions: current current_feature future future_feature + +//@ [current] run-rustfix +//@ [current] check-pass + +//@ [current_feature] run-rustfix +//@ [current_feature] check-pass + +//@ [future] edition: future +//@ [future] compile-flags: -Z unstable-options +//@ [future] run-rustfix +//@ [future] check-pass + +//@ [future_feature] edition: future +//@ [future_feature] compile-flags: -Z unstable-options + +#![cfg_attr(future_feature, feature(explicit_extern_abis))] +#![cfg_attr(current_feature, feature(explicit_extern_abis))] + +extern "C" fn _foo() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" fn _bar() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.stderr b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.stderr new file mode 100644 index 000000000000..cf927807c7c3 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current.stderr @@ -0,0 +1,22 @@ +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:27:1 + | +LL | extern fn _foo() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + | + = note: `#[warn(missing_abi)]` on by default + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:33:8 + | +LL | unsafe extern fn _bar() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:39:8 + | +LL | unsafe extern {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: 3 warnings emitted + diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.fixed b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.fixed new file mode 100644 index 000000000000..525f78d162fc --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.fixed @@ -0,0 +1,45 @@ +// The purpose of this feature gate is to make something into a hard error in a +// future edition. Consequently, this test differs from most other feature gate +// tests. Instead of verifying that an error occurs when the feature gate is +// missing, it ensures that the hard error is only produced with the feature +// gate is present in the `future` edition -- and otherwise that only a warning +// is emitted. + +//@ revisions: current current_feature future future_feature + +//@ [current] run-rustfix +//@ [current] check-pass + +//@ [current_feature] run-rustfix +//@ [current_feature] check-pass + +//@ [future] edition: future +//@ [future] compile-flags: -Z unstable-options +//@ [future] run-rustfix +//@ [future] check-pass + +//@ [future_feature] edition: future +//@ [future_feature] compile-flags: -Z unstable-options + +#![cfg_attr(future_feature, feature(explicit_extern_abis))] +#![cfg_attr(current_feature, feature(explicit_extern_abis))] + +extern "C" fn _foo() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" fn _bar() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.stderr b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.stderr new file mode 100644 index 000000000000..cf927807c7c3 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.current_feature.stderr @@ -0,0 +1,22 @@ +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:27:1 + | +LL | extern fn _foo() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + | + = note: `#[warn(missing_abi)]` on by default + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:33:8 + | +LL | unsafe extern fn _bar() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:39:8 + | +LL | unsafe extern {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: 3 warnings emitted + diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.fixed b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.fixed new file mode 100644 index 000000000000..525f78d162fc --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.fixed @@ -0,0 +1,45 @@ +// The purpose of this feature gate is to make something into a hard error in a +// future edition. Consequently, this test differs from most other feature gate +// tests. Instead of verifying that an error occurs when the feature gate is +// missing, it ensures that the hard error is only produced with the feature +// gate is present in the `future` edition -- and otherwise that only a warning +// is emitted. + +//@ revisions: current current_feature future future_feature + +//@ [current] run-rustfix +//@ [current] check-pass + +//@ [current_feature] run-rustfix +//@ [current_feature] check-pass + +//@ [future] edition: future +//@ [future] compile-flags: -Z unstable-options +//@ [future] run-rustfix +//@ [future] check-pass + +//@ [future_feature] edition: future +//@ [future_feature] compile-flags: -Z unstable-options + +#![cfg_attr(future_feature, feature(explicit_extern_abis))] +#![cfg_attr(current_feature, feature(explicit_extern_abis))] + +extern "C" fn _foo() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" fn _bar() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern "C" {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.stderr b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.stderr new file mode 100644 index 000000000000..cf927807c7c3 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future.stderr @@ -0,0 +1,22 @@ +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:27:1 + | +LL | extern fn _foo() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + | + = note: `#[warn(missing_abi)]` on by default + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:33:8 + | +LL | unsafe extern fn _bar() {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: `extern` declarations without an explicit ABI are deprecated + --> $DIR/feature-gate-explicit-extern-abis.rs:39:8 + | +LL | unsafe extern {} + | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"` + +warning: 3 warnings emitted + diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future_feature.stderr b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future_feature.stderr new file mode 100644 index 000000000000..096a6f434169 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.future_feature.stderr @@ -0,0 +1,26 @@ +error: `extern` declarations without an explicit ABI are disallowed + --> $DIR/feature-gate-explicit-extern-abis.rs:27:1 + | +LL | extern fn _foo() {} + | ^^^^^^ help: specify an ABI: `extern ""` + | + = help: prior to Rust 2024, a default ABI was inferred + +error: `extern` declarations without an explicit ABI are disallowed + --> $DIR/feature-gate-explicit-extern-abis.rs:33:8 + | +LL | unsafe extern fn _bar() {} + | ^^^^^^ help: specify an ABI: `extern ""` + | + = help: prior to Rust 2024, a default ABI was inferred + +error: `extern` declarations without an explicit ABI are disallowed + --> $DIR/feature-gate-explicit-extern-abis.rs:39:8 + | +LL | unsafe extern {} + | ^^^^^^ help: specify an ABI: `extern ""` + | + = help: prior to Rust 2024, a default ABI was inferred + +error: aborting due to 3 previous errors + diff --git a/tests/ui/feature-gates/feature-gate-explicit-extern-abis.rs b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.rs new file mode 100644 index 000000000000..379c45f58990 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-explicit-extern-abis.rs @@ -0,0 +1,45 @@ +// The purpose of this feature gate is to make something into a hard error in a +// future edition. Consequently, this test differs from most other feature gate +// tests. Instead of verifying that an error occurs when the feature gate is +// missing, it ensures that the hard error is only produced with the feature +// gate is present in the `future` edition -- and otherwise that only a warning +// is emitted. + +//@ revisions: current current_feature future future_feature + +//@ [current] run-rustfix +//@ [current] check-pass + +//@ [current_feature] run-rustfix +//@ [current_feature] check-pass + +//@ [future] edition: future +//@ [future] compile-flags: -Z unstable-options +//@ [future] run-rustfix +//@ [future] check-pass + +//@ [future_feature] edition: future +//@ [future_feature] compile-flags: -Z unstable-options + +#![cfg_attr(future_feature, feature(explicit_extern_abis))] +#![cfg_attr(current_feature, feature(explicit_extern_abis))] + +extern fn _foo() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern fn _bar() {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +unsafe extern {} +//[current]~^ WARN `extern` declarations without an explicit ABI are deprecated +//[current_feature]~^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future]~^^^ WARN `extern` declarations without an explicit ABI are deprecated +//[future_feature]~^^^^ ERROR `extern` declarations without an explicit ABI are disallowed + +fn main() {} diff --git a/tests/ui/link-native-libs/suggest-libname-only-1.rs b/tests/ui/link-native-libs/suggest-libname-only-1.rs index c69949d1fdb3..8699e4819e62 100644 --- a/tests/ui/link-native-libs/suggest-libname-only-1.rs +++ b/tests/ui/link-native-libs/suggest-libname-only-1.rs @@ -2,7 +2,7 @@ //@ compile-flags: --crate-type rlib #[link(name = "libfoo.a", kind = "static")] -extern { } //~ WARN extern declarations without an explicit ABI are deprecated +extern { } //~ WARN `extern` declarations without an explicit ABI are deprecated //~| HELP explicitly specify the "C" ABI pub fn main() { } diff --git a/tests/ui/link-native-libs/suggest-libname-only-1.stderr b/tests/ui/link-native-libs/suggest-libname-only-1.stderr index 0320294a8004..59bd99f619a0 100644 --- a/tests/ui/link-native-libs/suggest-libname-only-1.stderr +++ b/tests/ui/link-native-libs/suggest-libname-only-1.stderr @@ -1,4 +1,4 @@ -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/suggest-libname-only-1.rs:5:1 | LL | extern { } diff --git a/tests/ui/link-native-libs/suggest-libname-only-2.rs b/tests/ui/link-native-libs/suggest-libname-only-2.rs index d5150c327cd5..87373f563d09 100644 --- a/tests/ui/link-native-libs/suggest-libname-only-2.rs +++ b/tests/ui/link-native-libs/suggest-libname-only-2.rs @@ -2,7 +2,7 @@ //@ compile-flags: --crate-type rlib #[link(name = "bar.lib", kind = "static")] -extern { } //~ WARN extern declarations without an explicit ABI are deprecated +extern { } //~ WARN `extern` declarations without an explicit ABI are deprecated //~| HELP explicitly specify the "C" ABI pub fn main() { } diff --git a/tests/ui/link-native-libs/suggest-libname-only-2.stderr b/tests/ui/link-native-libs/suggest-libname-only-2.stderr index e492aea27b45..298a9ced1707 100644 --- a/tests/ui/link-native-libs/suggest-libname-only-2.stderr +++ b/tests/ui/link-native-libs/suggest-libname-only-2.stderr @@ -1,4 +1,4 @@ -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/suggest-libname-only-2.rs:5:1 | LL | extern { } diff --git a/tests/ui/lint/cli-lint-override.forbid_warn.stderr b/tests/ui/lint/cli-lint-override.forbid_warn.stderr index fb8779ad4f15..fe3437ae3d75 100644 --- a/tests/ui/lint/cli-lint-override.forbid_warn.stderr +++ b/tests/ui/lint/cli-lint-override.forbid_warn.stderr @@ -1,4 +1,4 @@ -error: extern declarations without an explicit ABI are deprecated +error: `extern` declarations without an explicit ABI are deprecated --> $DIR/cli-lint-override.rs:12:1 | LL | extern fn foo() {} diff --git a/tests/ui/lint/cli-lint-override.force_warn_deny.stderr b/tests/ui/lint/cli-lint-override.force_warn_deny.stderr index 10fc13e3f52f..f48fca4bd9f3 100644 --- a/tests/ui/lint/cli-lint-override.force_warn_deny.stderr +++ b/tests/ui/lint/cli-lint-override.force_warn_deny.stderr @@ -1,4 +1,4 @@ -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/cli-lint-override.rs:12:1 | LL | extern fn foo() {} diff --git a/tests/ui/lint/cli-lint-override.rs b/tests/ui/lint/cli-lint-override.rs index 4b3fd0d9c01c..b733872166aa 100644 --- a/tests/ui/lint/cli-lint-override.rs +++ b/tests/ui/lint/cli-lint-override.rs @@ -10,8 +10,8 @@ extern fn foo() {} -//[warn_deny]~^ ERROR extern declarations without an explicit ABI are deprecated -//[forbid_warn]~^^ ERROR extern declarations without an explicit ABI are deprecated -//[force_warn_deny]~^^^ WARN extern declarations without an explicit ABI are deprecated +//[warn_deny]~^ ERROR `extern` declarations without an explicit ABI are deprecated +//[forbid_warn]~^^ ERROR `extern` declarations without an explicit ABI are deprecated +//[force_warn_deny]~^^^ WARN `extern` declarations without an explicit ABI are deprecated fn main() {} diff --git a/tests/ui/lint/cli-lint-override.warn_deny.stderr b/tests/ui/lint/cli-lint-override.warn_deny.stderr index 979ca22324f1..91baad1f9f87 100644 --- a/tests/ui/lint/cli-lint-override.warn_deny.stderr +++ b/tests/ui/lint/cli-lint-override.warn_deny.stderr @@ -1,4 +1,4 @@ -error: extern declarations without an explicit ABI are deprecated +error: `extern` declarations without an explicit ABI are deprecated --> $DIR/cli-lint-override.rs:12:1 | LL | extern fn foo() {} diff --git a/tests/ui/parser/bad-lit-suffixes.stderr b/tests/ui/parser/bad-lit-suffixes.stderr index d6b50b0e0d1f..86ef35bf7833 100644 --- a/tests/ui/parser/bad-lit-suffixes.stderr +++ b/tests/ui/parser/bad-lit-suffixes.stderr @@ -51,7 +51,7 @@ LL | #[rustc_layout_scalar_valid_range_start(0suffix)] | = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/bad-lit-suffixes.rs:3:1 | LL | extern @@ -59,7 +59,7 @@ LL | extern | = note: `#[warn(missing_abi)]` on by default -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/bad-lit-suffixes.rs:7:1 | LL | extern diff --git a/tests/ui/parser/lit-err-in-macro.stderr b/tests/ui/parser/lit-err-in-macro.stderr index 9422f22f9c8f..08fe58643d40 100644 --- a/tests/ui/parser/lit-err-in-macro.stderr +++ b/tests/ui/parser/lit-err-in-macro.stderr @@ -4,7 +4,7 @@ error: suffixes on string literals are invalid LL | f!("Foo"__); | ^^^^^^^ invalid suffix `__` -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/lit-err-in-macro.rs:3:9 | LL | extern $abi fn f() {} diff --git a/tests/ui/proc-macro/inner-attrs.rs b/tests/ui/proc-macro/inner-attrs.rs index c541e93f9041..ca4b2029a338 100644 --- a/tests/ui/proc-macro/inner-attrs.rs +++ b/tests/ui/proc-macro/inner-attrs.rs @@ -82,7 +82,7 @@ fn bar() { } -extern { //~ WARN extern declarations without an explicit ABI are deprecated +extern { //~ WARN `extern` declarations without an explicit ABI are deprecated fn weird_extern() { #![print_target_and_args_consume(tenth)] } diff --git a/tests/ui/proc-macro/inner-attrs.stderr b/tests/ui/proc-macro/inner-attrs.stderr index 4e7825c0d007..54cccae8da08 100644 --- a/tests/ui/proc-macro/inner-attrs.stderr +++ b/tests/ui/proc-macro/inner-attrs.stderr @@ -22,7 +22,7 @@ error: expected non-macro inner attribute, found attribute macro `print_attr` LL | #![print_attr] | ^^^^^^^^^^ not a non-macro inner attribute -warning: extern declarations without an explicit ABI are deprecated +warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/inner-attrs.rs:85:1 | LL | extern {