[INFO] fetching crate dyn-ptr 0.2.3...
[INFO] testing dyn-ptr-0.2.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dyn-ptr 0.2.3 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dyn-ptr 0.2.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[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] [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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 07a05bbde6f6c3f71c0a1431d0450d0ce4f06dcb480bd7aea89e3f50f1d7d626
[INFO] running `Command { std: "docker" "start" "-a" "07a05bbde6f6c3f71c0a1431d0450d0ce4f06dcb480bd7aea89e3f50f1d7d626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07a05bbde6f6c3f71c0a1431d0450d0ce4f06dcb480bd7aea89e3f50f1d7d626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a05bbde6f6c3f71c0a1431d0450d0ce4f06dcb480bd7aea89e3f50f1d7d626", kill_on_drop: false }`
[INFO] [stdout] 07a05bbde6f6c3f71c0a1431d0450d0ce4f06dcb480bd7aea89e3f50f1d7d626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ce68d7183d7a9eaed30c3f8fece99f11b9bf341fa706ddc0e4fcb5b4be7caac6
[INFO] running `Command { std: "docker" "start" "-a" "ce68d7183d7a9eaed30c3f8fece99f11b9bf341fa706ddc0e4fcb5b4be7caac6", 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 stable 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[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(unsize, ptr_metadata, exact_size_is_empty, trivial_bounds)]
[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: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/metadata.rs:112:1
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 119 |         ptr::from_raw_parts(ptr::addr_of!(self.repr).cast::<U>(), 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: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts_mut`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ptr/metadata.rs:125:1
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 123 |         ptr::from_raw_parts_mut(ptr::addr_of_mut!(self.repr).cast::<U>(), 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 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ce68d7183d7a9eaed30c3f8fece99f11b9bf341fa706ddc0e4fcb5b4be7caac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce68d7183d7a9eaed30c3f8fece99f11b9bf341fa706ddc0e4fcb5b4be7caac6", kill_on_drop: false }`
[INFO] [stdout] ce68d7183d7a9eaed30c3f8fece99f11b9bf341fa706ddc0e4fcb5b4be7caac6
