Switch from trybuild to ui-test

Cargo.toml

@@ -85,6 +85,11 @@ std = ["alloc"]
 # removed at any time.
 __internal_use_only_features_that_work_on_stable = ["alloc", "derive", "simd", "std"]
 
+[[test]]
+name = "ui"
+path = "tests/ui.rs"
+harness = false
+
 [dependencies]
 zerocopy-derive = { version = "=0.8.29", path = "zerocopy-derive", optional = true }
 
@@ -106,10 +111,5 @@ rand = { version = "0.8.5", default-features = false, features = ["small_rng"] }
 rustversion = "1.0"
 static_assertions = "1.1"
 testutil = { path = "testutil" }
-# Pinned to a specific version so that the version used for local development
-# and the version used in CI are guaranteed to be the same. Future versions
-# sometimes change the output format slightly, so a version mismatch can cause
-# CI test failures.
-trybuild = { version = "=1.0.89", features = ["diff"] }
 # In tests, unlike in production, zerocopy-derive is not optional
 zerocopy-derive = { version = "=0.8.29", path = "zerocopy-derive" }

cargo.sh

@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+#
 # Copyright 2024 The Fuchsia Authors
 #
 # Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0

tests/ui-msrv/diagnostic-not-implemented-from-bytes.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_from_bytes`
    |
 21 | fn takes_from_bytes<T: FromBytes>() {}
    |                        ^^^^^^^^^ required by this bound in `takes_from_bytes`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-from-zeros.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_from_zeros`
    |
 21 | fn takes_from_zeros<T: FromZeros>() {}
    |                        ^^^^^^^^^ required by this bound in `takes_from_zeros`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-immutable.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_immutable`
    |
 21 | fn takes_immutable<T: Immutable>() {}
    |                       ^^^^^^^^^ required by this bound in `takes_immutable`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-into-bytes.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_into_bytes`
    |
 21 | fn takes_into_bytes<T: IntoBytes>() {}
    |                        ^^^^^^^^^ required by this bound in `takes_into_bytes`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-issue-1296.stderr

@@ -9,3 +9,7 @@ error[E0277]: the trait bound `NotZerocopy: zerocopy::IntoBytes` is not satisfie
    |
 52 |     Foo.write_obj(NotZerocopy(()));
    |                   ^^^^^^^^^^^^^^^ the trait `zerocopy::IntoBytes` is not implemented for `NotZerocopy`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-known-layout.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_known_layout`
    |
 21 | fn takes_known_layout<T: KnownLayout>() {}
    |                          ^^^^^^^^^^^ required by this bound in `takes_known_layout`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-try-from-bytes.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_try_from_bytes`
    |
 21 | fn takes_try_from_bytes<T: TryFromBytes>() {}
    |                            ^^^^^^^^^^^^ required by this bound in `takes_try_from_bytes`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/diagnostic-not-implemented-unaligned.stderr

@@ -9,3 +9,7 @@ note: required by a bound in `takes_unaligned`
    |
 21 | fn takes_unaligned<T: Unaligned>() {}
    |                       ^^^^^^^^^ required by this bound in `takes_unaligned`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/include_value_not_from_bytes.stderr

@@ -13,3 +13,7 @@ note: required by a bound in `NOT_FROM_BYTES::transmute`
    |                                          required by a bound in this
    |                                          required by this bound in `NOT_FROM_BYTES::transmute`
    = note: this error originates in the macro `$crate::transmute` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.

tests/ui-msrv/include_value_wrong_size.stderr

@@ -7,3 +7,7 @@ error[E0512]: cannot transmute between types of different sizes, or dependently-
    = note: source type: `[u8; 4]` (32 bits)
    = note: target type: `u64` (64 bits)
    = note: this error originates in the macro `$crate::transmute` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0512`.