error building regalloc2-0.12.2

[morenol]

--> /Users/morenol/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.12.2/src/lib.rs:1698:24
     |
1698 |         self.0.deref().allocate(layout)
     |                        ^^^^^^^^
     |
    ::: /Users/morenol/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:292:1
     |
292  | pub struct Bump<const MIN_ALIGN: usize = 1> {
     | ------------------------------------------- doesn't satisfy `bumpalo::Bump: allocator_api2::alloc::Allocator`
     |
     = note: the following trait bounds were not satisfied:
             `bumpalo::Bump: allocator_api2::alloc::Allocator`
             which is required by `&bumpalo::Bump: allocator_api2::alloc::Allocator`
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `allocate` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;

Seems to be related to this release?

[jadamcrain]

@morenol I'm seeing the same issue (below).

What's super strange about is that we're using a Cargo.lock and I can query our workspace:

cargo tree -p bumpalo -i

bumpalo v3.17.0
├── cranelift-codegen v0.116.1
│   ├── cranelift-frontend v0.116.1
│   │   └── wasmtime-cranelift v29.0.1
│   │       └── wasmtime v29.0.1
│   │           └── edge-wasm-host v0.1.0 (/home/jadamcrain/Documents/code/batt-mono-repo/edge/components/wasm/host)
│   │               └── batt-edge v0.1.0 (/home/jadamcrain/Documents/code/batt-mono-repo/edge/app)
│   ├── cranelift-native v0.116.1
│   │   └── wasmtime-cranelift v29.0.1 (*)
│   └── wasmtime-cranelift v29.0.1 (*)
├── regalloc2 v0.11.2
│   └── cranelift-codegen v0.116.1 (*)
├── wasmtime v29.0.1 (*)
└── wast v229.0.0
    └── wat v1.229.0
        └── wasmtime v29.0.1 (*)

bumpalo v3.17.0
└── zopfli v0.8.2
    └── zip v2.6.1
        [build-dependencies]
        └── utoipa-swagger-ui v9.0.1
            └── edge-http-api v0.1.0 (/home/jadamcrain/Documents/code/batt-mono-repo/edge/components/http-api)
                └── batt-edge v0.1.0 (/home/jadamcrain/Documents/code/batt-mono-repo/edge/app)

We should be locked on bumpalo 3.17.0 right? Our builds started failing though right after bumpalo 3.18 was released....

error[E0599]: the method `allocate` exists for reference `&Bump`, but its trait bounds were not satisfied
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1691:24
     |
1691 |         self.0.deref().allocate(layout)
     |                        ^^^^^^^^
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:292:1
     |
292  | pub struct Bump<const MIN_ALIGN: usize = 1> {
     | ------------------------------------------- doesn't satisfy `bumpalo::Bump: allocator_api2::alloc::Allocator`
     |
     = note: the following trait bounds were not satisfied:
             `bumpalo::Bump: allocator_api2::alloc::Allocator`
             which is required by `&bumpalo::Bump: allocator_api2::alloc::Allocator`
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `allocate` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

error[E0599]: the method `deallocate` exists for reference `&Bump`, but its trait bounds were not satisfied
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1695:24
     |
1695 |         self.0.deref().deallocate(ptr, layout);
     |                        ^^^^^^^^^^
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:292:1
     |
292  | pub struct Bump<const MIN_ALIGN: usize = 1> {
     | ------------------------------------------- doesn't satisfy `bumpalo::Bump: allocator_api2::alloc::Allocator`
     |
     = note: the following trait bounds were not satisfied:
             `bumpalo::Bump: allocator_api2::alloc::Allocator`
             which is required by `&bumpalo::Bump: allocator_api2::alloc::Allocator`
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `deallocate` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

error[E0599]: the method `allocate_zeroed` exists for reference `&Bump`, but its trait bounds were not satisfied
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1702:24
     |
1702 |         self.0.deref().allocate_zeroed(layout)
     |                        ^^^^^^^^^^^^^^^
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:292:1
     |
292  | pub struct Bump<const MIN_ALIGN: usize = 1> {
     | ------------------------------------------- doesn't satisfy `bumpalo::Bump: allocator_api2::alloc::Allocator`
     |
     = note: the following trait bounds were not satisfied:
             `bumpalo::Bump: allocator_api2::alloc::Allocator`
             which is required by `&bumpalo::Bump: allocator_api2::alloc::Allocator`
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `allocate_zeroed` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

error[E0624]: method `grow` is private
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1711:24
     |
1711 |           self.0.deref().grow(ptr, old_layout, new_layout)
     |                          ^^^^ private method
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:2342:5
     |
2342 | /     unsafe fn grow(
2343 | |         &self,
2344 | |         ptr: NonNull<u8>,
2345 | |         old_layout: Layout,
2346 | |         new_layout: Layout,
2347 | |     ) -> Result<NonNull<u8>, AllocErr> {
     | |______________________________________- private method defined here
     |
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `grow` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

error[E0599]: the method `grow_zeroed` exists for reference `&Bump`, but its trait bounds were not satisfied
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1720:24
     |
1720 |         self.0.deref().grow_zeroed(ptr, old_layout, new_layout)
     |                        ^^^^^^^^^^^ method cannot be called on `&Bump` due to unsatisfied trait bounds
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:292:1
     |
292  | pub struct Bump<const MIN_ALIGN: usize = 1> {
     | ------------------------------------------- doesn't satisfy `bumpalo::Bump: allocator_api2::alloc::Allocator`
     |
     = note: the following trait bounds were not satisfied:
             `bumpalo::Bump: allocator_api2::alloc::Allocator`
             which is required by `&bumpalo::Bump: allocator_api2::alloc::Allocator`
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `grow_zeroed` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

error[E0624]: method `shrink` is private
    --> /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regalloc2-0.11.2/src/lib.rs:1729:24
     |
1729 |           self.0.deref().shrink(ptr, old_layout, new_layout)
     |                          ^^^^^^ private method
     |
    ::: /home/jadamcrain/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.18.0/src/lib.rs:2246:5
     |
2246 | /     unsafe fn shrink(
2247 | |         &self,
2248 | |         ptr: NonNull<u8>,
2249 | |         old_layout: Layout,
2250 | |         new_layout: Layout,
2251 | |     ) -> Result<NonNull<u8>, AllocErr> {
     | |______________________________________- private method defined here
     |
     = help: items from traits can only be used if the trait is in scope
help: trait `Allocator` which provides `shrink` is implemented but not in scope; perhaps you want to import it
     |
17   + use allocator_api2::alloc::Allocator;
     |

Some errors have detailed explanations: E0599, E0624.
For more information about an error, try `rustc --explain E0599`.
error: could not compile `regalloc2` (lib) due to 6 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile `batt-edge v0.1.0 (/home/jadamcrain/Documents/code/batt-mono-repo/edge/app)`, intermediate artifacts can be found at `/home/jadamcrain/Documents/code/batt-mono-repo/target`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path

[bjorn3]

cargo install ignores the lockfile unless you pass --locked.

[jadamcrain]

@bjorn3 Ah!! Thanks for that.

[Amanieu]

This broke CI in hashbrown: rust-lang/hashbrown#625

Bumping the allocator-api2 version was a breaking change, the latest release should be yanked and re-released with a major version bump.

[fitzgen]

Ah, I was under the impression that it was doing the re-export trick. Will yank, revert the allocator_api2 bump, and publish 3.18.1.

[fitzgen]

Revert in #278