[INFO] fetching crate synco 0.0.0...
[INFO] testing synco-0.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate synco 0.0.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate synco 0.0.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synco 0.0.0
[INFO] finished tweaking crates.io crate synco 0.0.0
[INFO] tweaked toml for crates.io crate synco 0.0.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate crates.io crate synco 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b49ba7db470fab527d9bd9ce94cc2d83e7464735f102713d8a017ba69bfc2c28
[INFO] running `Command { std: "docker" "start" "-a" "b49ba7db470fab527d9bd9ce94cc2d83e7464735f102713d8a017ba69bfc2c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b49ba7db470fab527d9bd9ce94cc2d83e7464735f102713d8a017ba69bfc2c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b49ba7db470fab527d9bd9ce94cc2d83e7464735f102713d8a017ba69bfc2c28", kill_on_drop: false }`
[INFO] [stdout] b49ba7db470fab527d9bd9ce94cc2d83e7464735f102713d8a017ba69bfc2c28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cda0027de93e07bb7a957beeb23a2ddb9ef4c685ca6954def2a00d8261686de
[INFO] running `Command { std: "docker" "start" "-a" "0cda0027de93e07bb7a957beeb23a2ddb9ef4c685ca6954def2a00d8261686de", kill_on_drop: false }`
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling synco v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     min_type_alias_impl_trait,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of full type_alias_impl_trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![feature(
[INFO] [stdout] 2 | |     generic_associated_types,
[INFO] [stdout] 3 | |     maybe_uninit_ref,
[INFO] [stdout] 4 | |     maybe_uninit_extra,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     fn_traits,
[INFO] [stdout] 9 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]    --> src/entity.rs:107:27
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type EntityIter<'a> = impl Iterator<Item = Entity> + 'a;
[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 type aliases is unstable
[INFO] [stdout]   --> src/system.rs:93:28
[INFO] [stdout]    |
[INFO] [stdout] 93 |     type System = FnSystem<impl FnOnce(Args) -> O, Args, O>;
[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] warning: unused import: `super::*`
[INFO] [stdout]  --> src/entity.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ref`
[INFO] [stdout]  --> src/query.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cell::{UnsafeCell, Ref},
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/query.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 };);*
[INFO] [stdout]     |                    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: where clause not allowed here
[INFO] [stdout]   --> src/storage.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         type Ref<'a> where T: 'a = &'a T;
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated_where_clause_location)]` on by default
[INFO] [stdout]    = note: see issue #89122 <https://github.com/rust-lang/rust/issues/89122> for more information
[INFO] [stdout] help: move it to the end of the type declaration
[INFO] [stdout]    |
[INFO] [stdout] 38 -         type Ref<'a> where T: 'a = &'a T;
[INFO] [stdout] 38 +         type Ref<'a>  = &'a T where T: 'a;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: where clause not allowed here
[INFO] [stdout]   --> src/storage.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |         type RefMut<'a> where T: 'a = &'a mut T;
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #89122 <https://github.com/rust-lang/rust/issues/89122> for more information
[INFO] [stdout] help: move it to the end of the type declaration
[INFO] [stdout]    |
[INFO] [stdout] 39 -         type RefMut<'a> where T: 'a = &'a mut T;
[INFO] [stdout] 39 +         type RefMut<'a>  = &'a mut T where T: 'a;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: where clause not allowed here
[INFO] [stdout]   --> src/storage.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 |         type Ref<'a> where T: 'a = &'a T;
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #89122 <https://github.com/rust-lang/rust/issues/89122> for more information
[INFO] [stdout] help: move it to the end of the type declaration
[INFO] [stdout]    |
[INFO] [stdout] 72 -         type Ref<'a> where T: 'a = &'a T;
[INFO] [stdout] 72 +         type Ref<'a>  = &'a T where T: 'a;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: where clause not allowed here
[INFO] [stdout]   --> src/storage.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |         type RefMut<'a> where T: 'a = &'a mut T;
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #89122 <https://github.com/rust-lang/rust/issues/89122> for more information
[INFO] [stdout] help: move it to the end of the type declaration
[INFO] [stdout]    |
[INFO] [stdout] 73 -         type RefMut<'a> where T: 'a = &'a mut T;
[INFO] [stdout] 73 +         type RefMut<'a>  = &'a mut T where T: 'a;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     maybe_uninit_ref,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     maybe_uninit_extra,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn_traits,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_extra` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     maybe_uninit_extra,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     maybe_uninit_ref,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synco` due to 8 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0cda0027de93e07bb7a957beeb23a2ddb9ef4c685ca6954def2a00d8261686de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cda0027de93e07bb7a957beeb23a2ddb9ef4c685ca6954def2a00d8261686de", kill_on_drop: false }`
[INFO] [stdout] 0cda0027de93e07bb7a957beeb23a2ddb9ef4c685ca6954def2a00d8261686de