[INFO] fetching crate department 0.2.6...
[INFO] testing department-0.2.6 against 1.90.0 for beta-1.91-3
[INFO] extracting crate department 0.2.6 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate department 0.2.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate department 0.2.6
[INFO] tweaked toml for crates.io crate department 0.2.6 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate department 0.2.6 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate department 0.2.6 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d050a9ed4786c0e800d02ea1eb93da525c294f5673730719df8d95c3d2ea7419
[INFO] running `Command { std: "docker" "start" "-a" "d050a9ed4786c0e800d02ea1eb93da525c294f5673730719df8d95c3d2ea7419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d050a9ed4786c0e800d02ea1eb93da525c294f5673730719df8d95c3d2ea7419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d050a9ed4786c0e800d02ea1eb93da525c294f5673730719df8d95c3d2ea7419", kill_on_drop: false }`
[INFO] [stdout] d050a9ed4786c0e800d02ea1eb93da525c294f5673730719df8d95c3d2ea7419
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e168e4863a0e0be680ab2f4d2dec0898cb9e25f5718327c602cc6950402c1e4e
[INFO] running `Command { std: "docker" "start" "-a" "e168e4863a0e0be680ab2f4d2dec0898cb9e25f5718327c602cc6950402c1e4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling department v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(ptr_metadata)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(layout_for_ptr)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![cfg_attr(feature = "unsize", feature(unsize, coerce_unsized))]
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "alloc", feature(allocator_api))]
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<T as Pointee>::Metadata == ()`
[INFO] [stdout]    --> src/base.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         allocate_single, deallocate_single
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ expected `()`, found associated type
[INFO] [stdout]     |
[INFO] [stdout]     = note:    expected unit type `()`
[INFO] [stdout]             found associated type `<T as std::ptr::Pointee>::Metadata`
[INFO] [stdout] help: consider constraining the associated type `<T as std::ptr::Pointee>::Metadata` to `()`
[INFO] [stdout]     |
[INFO] [stdout]  21 |         fn $create<T: Pointee<Metadata = ()>>(
[INFO] [stdout]     |                              +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<T as Pointee>::Metadata == ()`
[INFO] [stdout]    --> src/base.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |         allocate, deallocate
[INFO] [stdout]     |         ^^^^^^^^ expected `()`, found associated type
[INFO] [stdout]     |
[INFO] [stdout]     = note:    expected unit type `()`
[INFO] [stdout]             found associated type `<T as std::ptr::Pointee>::Metadata`
[INFO] [stdout] help: consider constraining the associated type `<T as std::ptr::Pointee>::Metadata` to `()`
[INFO] [stdout]     |
[INFO] [stdout]  21 |         fn $create<T: Pointee<Metadata = ()>>(
[INFO] [stdout]     |                              +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/handles.rs:164:38
[INFO] [stdout]     |
[INFO] [stdout] 164 |         NonNull::from_raw_parts(self.cast(), meta)
[INFO] [stdout]     |         -----------------------      ^^^^ cannot infer type of the type parameter `U` declared on the method `cast`
[INFO] [stdout]     |         |
[INFO] [stdout]     |         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `NonNull::<T>::from_raw_parts`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/non_null.rs:297:5
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 164 |         NonNull::from_raw_parts(self.cast::<U>(), meta)
[INFO] [stdout]     |                                          +++++
[INFO] [stdout] help: consider removing this method call, as the receiver has type `NonNull<T>` and `NonNull<T>: Thin` trivially holds
[INFO] [stdout]     |
[INFO] [stdout] 164 -         NonNull::from_raw_parts(self.cast(), meta)
[INFO] [stdout] 164 +         NonNull::from_raw_parts(self, meta)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/alloc.rs:117:44
[INFO] [stdout]     |
[INFO] [stdout] 117 |         Ok(NonNull::from_raw_parts(new_ptr.cast(), capacity))
[INFO] [stdout]     |            -----------------------         ^^^^ cannot infer type of the type parameter `U` declared on the method `cast`
[INFO] [stdout]     |            |
[INFO] [stdout]     |            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `NonNull::<T>::from_raw_parts`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/non_null.rs:297:5
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 117 |         Ok(NonNull::from_raw_parts(new_ptr.cast::<U>(), capacity))
[INFO] [stdout]     |                                                +++++
[INFO] [stdout] help: consider removing this method call, as the receiver has type `NonNull<[u8]>` and `NonNull<[u8]>: Thin` trivially holds
[INFO] [stdout]     |
[INFO] [stdout] 117 -         Ok(NonNull::from_raw_parts(new_ptr.cast(), capacity))
[INFO] [stdout] 117 +         Ok(NonNull::from_raw_parts(new_ptr, capacity))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/alloc.rs:139:44
[INFO] [stdout]     |
[INFO] [stdout] 139 |         Ok(NonNull::from_raw_parts(new_ptr.cast(), capacity))
[INFO] [stdout]     |            -----------------------         ^^^^ cannot infer type of the type parameter `U` declared on the method `cast`
[INFO] [stdout]     |            |
[INFO] [stdout]     |            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `NonNull::<T>::from_raw_parts`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/non_null.rs:297:5
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 139 |         Ok(NonNull::from_raw_parts(new_ptr.cast::<U>(), capacity))
[INFO] [stdout]     |                                                +++++
[INFO] [stdout] help: consider removing this method call, as the receiver has type `NonNull<[u8]>` and `NonNull<[u8]>: Thin` trivially holds
[INFO] [stdout]     |
[INFO] [stdout] 139 -         Ok(NonNull::from_raw_parts(new_ptr.cast(), capacity))
[INFO] [stdout] 139 +         Ok(NonNull::from_raw_parts(new_ptr, capacity))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `NonNull<_>`
[INFO] [stdout]    --> src/heap.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let ptr = unsafe { NonNull::new_unchecked(slice_ptr).cast() };
[INFO] [stdout]     |             ^^^            ---------------------------------------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving `ptr` an explicit type, where the type for type parameter `U` is specified
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let ptr: NonNull<U> = unsafe { NonNull::new_unchecked(slice_ptr).cast() };
[INFO] [stdout]     |                ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0282, E0283, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `department` (lib) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "e168e4863a0e0be680ab2f4d2dec0898cb9e25f5718327c602cc6950402c1e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e168e4863a0e0be680ab2f4d2dec0898cb9e25f5718327c602cc6950402c1e4e", kill_on_drop: false }`
[INFO] [stdout] e168e4863a0e0be680ab2f4d2dec0898cb9e25f5718327c602cc6950402c1e4e