[INFO] fetching crate unsized-vec 0.0.2-alpha.6...
[INFO] testing unsized-vec-0.0.2-alpha.6 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate unsized-vec 0.0.2-alpha.6 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate unsized-vec 0.0.2-alpha.6 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsized-vec 0.0.2-alpha.6
[INFO] finished tweaking crates.io crate unsized-vec 0.0.2-alpha.6
[INFO] tweaked toml for crates.io crate unsized-vec 0.0.2-alpha.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate unsized-vec 0.0.2-alpha.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded emplacable v0.1.0-alpha.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0100c079096366294dc3b9c2d49a1e7e21ab51482e0539d80b7b6096239742b0
[INFO] running `Command { std: "docker" "start" "-a" "0100c079096366294dc3b9c2d49a1e7e21ab51482e0539d80b7b6096239742b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0100c079096366294dc3b9c2d49a1e7e21ab51482e0539d80b7b6096239742b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0100c079096366294dc3b9c2d49a1e7e21ab51482e0539d80b7b6096239742b0", kill_on_drop: false }`
[INFO] [stdout] 0100c079096366294dc3b9c2d49a1e7e21ab51482e0539d80b7b6096239742b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7238b91bbf89aa5b8164b2141197c9c8aea7f5c4b52371a0866f19694ec5473f
[INFO] running `Command { std: "docker" "start" "-a" "7238b91bbf89aa5b8164b2141197c9c8aea7f5c4b52371a0866f19694ec5473f", kill_on_drop: false }`
[INFO] [stderr]    Compiling emplacable v0.1.0-alpha.6
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:78:1
[INFO] [stdout]    |
[INFO] [stdout] 78 | / #![feature(
[INFO] [stdout] 79 | |     allocator_api,
[INFO] [stdout] 80 | |     array_zip,
[INFO] [stdout] 81 | |     closure_lifetime_binder,
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |     unsized_fn_params
[INFO] [stdout] 90 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:679:20
[INFO] [stdout]     |
[INFO] [stdout] 679 |     type Closure = impl EmplacableFn<Self>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:752:20
[INFO] [stdout]     |
[INFO] [stdout] 752 |     type Closure = impl for<'a> FnOnce(&'a mut Emplacer<[T]>) + 's;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:785:20
[INFO] [stdout]     |
[INFO] [stdout] 785 |     type Closure = impl for<'a> FnOnce(&'a mut Emplacer<str>) + 's;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:822:20
[INFO] [stdout]     |
[INFO] [stdout] 822 |     type Closure = impl for<'a> FnOnce(&'a mut Emplacer<CStr>) + 's;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:953:20
[INFO] [stdout]     |
[INFO] [stdout] 953 |     type Closure = impl EmplacableFn<[u8]>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:1000:20
[INFO] [stdout]      |
[INFO] [stdout] 1000 |     type Closure = impl EmplacableFn<T>;
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:1045:20
[INFO] [stdout]      |
[INFO] [stdout] 1045 |     type Closure = impl EmplacableFn<[T]>;
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:1102:20
[INFO] [stdout]      |
[INFO] [stdout] 1102 |     type Closure = impl EmplacableFn<[T]>;
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:1122:20
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     type Closure = impl EmplacableFn<[T; N]>;
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:1197:20
[INFO] [stdout]      |
[INFO] [stdout] 1197 |     type Closure = impl EmplacableFn<[T]>;
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     allocator_api,
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     array_zip,
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     forget_unsized,
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     ptr_metadata,
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     unchecked_math,
[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-6f17d22bba15001f/emplacable-0.1.0-alpha.6/src/lib.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     unsize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 17 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `emplacable` (lib) due to 18 previous errors
[INFO] running `Command { std: "docker" "inspect" "7238b91bbf89aa5b8164b2141197c9c8aea7f5c4b52371a0866f19694ec5473f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7238b91bbf89aa5b8164b2141197c9c8aea7f5c4b52371a0866f19694ec5473f", kill_on_drop: false }`
[INFO] [stdout] 7238b91bbf89aa5b8164b2141197c9c8aea7f5c4b52371a0866f19694ec5473f
