[INFO] fetching crate local-sync 0.1.1...
[INFO] testing local-sync-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate local-sync 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate local-sync 0.1.1
[INFO] finished tweaking crates.io crate local-sync 0.1.1
[INFO] tweaked toml for crates.io crate local-sync 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate local-sync 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding monoio v0.1.9 (available: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aac693504af819c83f59d743a018b338ee1bbab896b68fecc063cf25fd2ab9d5
[INFO] running `Command { std: "docker" "start" "-a" "aac693504af819c83f59d743a018b338ee1bbab896b68fecc063cf25fd2ab9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aac693504af819c83f59d743a018b338ee1bbab896b68fecc063cf25fd2ab9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac693504af819c83f59d743a018b338ee1bbab896b68fecc063cf25fd2ab9d5", kill_on_drop: false }`
[INFO] [stdout] aac693504af819c83f59d743a018b338ee1bbab896b68fecc063cf25fd2ab9d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9876860d37491ef3c5ab0a83b3497138230229512e260f283fdea8e37dc1d5e
[INFO] running `Command { std: "docker" "start" "-a" "d9876860d37491ef3c5ab0a83b3497138230229512e260f283fdea8e37dc1d5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling local-sync v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "d9876860d37491ef3c5ab0a83b3497138230229512e260f283fdea8e37dc1d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9876860d37491ef3c5ab0a83b3497138230229512e260f283fdea8e37dc1d5e", kill_on_drop: false }`
[INFO] [stdout] d9876860d37491ef3c5ab0a83b3497138230229512e260f283fdea8e37dc1d5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d2e8bbf3d6aa8f860d9155d7cebe4b68643f3613c43d2c2cbd127a08452c4dd
[INFO] running `Command { std: "docker" "start" "-a" "1d2e8bbf3d6aa8f860d9155d7cebe4b68643f3613c43d2c2cbd127a08452c4dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling io-uring v0.6.4
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling monoio-macros v0.1.0
[INFO] [stderr]    Compiling auto-const-array v0.2.2
[INFO] [stderr]    Compiling monoio v0.1.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(io_error_more)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(lazy_cell)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(slice_internals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(thread_local)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained opaque type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/io/stream/stream_ext.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     impl Future<Output = ()>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ForEachFut` must be used in combination with a concrete type within the same crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/io/stream/stream_ext.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |       fn for_each<Fut, F>(mut self, mut f: F) -> ForEachFut<Self, Fut, F>
[INFO] [stdout]    |                                                  ------------------------ expected `ForEachFut<Self, Fut, F>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 35 | /         async move {
[INFO] [stdout] 36 | |             while let Some(item) = self.next().await {
[INFO] [stdout] 37 | |                 (f)(item).await;
[INFO] [stdout] 38 | |             }
[INFO] [stdout] 39 | |         }
[INFO] [stdout]    | |_________^ expected future, found `async` block
[INFO] [stdout] ...
[INFO] [stdout] 47 |       impl Future<Output = ()>;
[INFO] [stdout]    |       ------------------------ the expected future
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `ForEachFut<Self, Fut, F>`
[INFO] [stdout]             found `async` block `{async block@/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/io/stream/stream_ext.rs:35:9: 35:19}`
[INFO] [stdout] note: this item must have a `#[define_opaque(ForEachFut)]` attribute to be able to define hidden types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.1.9/src/io/stream/stream_ext.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn for_each<Fut, F>(mut self, mut f: F) -> ForEachFut<Self, Fut, F>
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monoio` (lib) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "1d2e8bbf3d6aa8f860d9155d7cebe4b68643f3613c43d2c2cbd127a08452c4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d2e8bbf3d6aa8f860d9155d7cebe4b68643f3613c43d2c2cbd127a08452c4dd", kill_on_drop: false }`
[INFO] [stdout] 1d2e8bbf3d6aa8f860d9155d7cebe4b68643f3613c43d2c2cbd127a08452c4dd
