[INFO] fetching crate dyn-ptr 0.2.3...
[INFO] testing dyn-ptr-0.2.3 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate dyn-ptr 0.2.3 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate dyn-ptr 0.2.3
[INFO] finished tweaking crates.io crate dyn-ptr 0.2.3
[INFO] tweaked toml for crates.io crate dyn-ptr 0.2.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dyn-ptr 0.2.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee
[INFO] running `Command { std: "docker" "start" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling dyn-ptr v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature = "any-ptr", feature(generic_const_exprs, specialization))]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:119:54
[INFO] [stdout]     |
[INFO] [stdout] 119 |         ptr::from_raw_parts(ptr::addr_of!(self.repr).cast(), self.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: the type must implement `Thin`
[INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts`
[INFO] [stdout]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/metadata.rs:116:0
[INFO] [stdout] help: consider specifying a concrete type for the type parameter `U`
[INFO] [stdout]     |
[INFO] [stdout] 119 |         ptr::from_raw_parts(ptr::addr_of!(self.repr).cast::</* Type */>(), self.meta)
[INFO] [stdout]     |                                                          ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:123:62
[INFO] [stdout]     |
[INFO] [stdout] 123 |         ptr::from_raw_parts_mut(ptr::addr_of_mut!(self.repr).cast(), self.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: the type must implement `Thin`
[INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts_mut`
[INFO] [stdout]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/metadata.rs:129:0
[INFO] [stdout] help: consider specifying a concrete type for the type parameter `U`
[INFO] [stdout]     |
[INFO] [stdout] 123 |         ptr::from_raw_parts_mut(ptr::addr_of_mut!(self.repr).cast::</* Type */>(), self.meta)
[INFO] [stdout]     |                                                                  ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0283, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dyn-ptr` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee", kill_on_drop: false }`
[INFO] [stdout] d3b6fff626b2cb5bf3caff7dccd8823ff0dbabf9f3178a9e4c388f1f5fc69fee
