[INFO] fetching crate awint_core 0.4.0...
[INFO] testing awint_core-0.4.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate awint_core 0.4.0 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate awint_core 0.4.0 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 awint_core 0.4.0
[INFO] finished tweaking crates.io crate awint_core 0.4.0
[INFO] tweaked toml for crates.io crate awint_core 0.4.0 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 0b339a70b3d6441fadff9e398bd50a68cc67c32ac7c5ecf1dbd76e770e022103
[INFO] running `Command { std: "docker" "start" "-a" "0b339a70b3d6441fadff9e398bd50a68cc67c32ac7c5ecf1dbd76e770e022103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b339a70b3d6441fadff9e398bd50a68cc67c32ac7c5ecf1dbd76e770e022103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b339a70b3d6441fadff9e398bd50a68cc67c32ac7c5ecf1dbd76e770e022103", kill_on_drop: false }`
[INFO] [stdout] 0b339a70b3d6441fadff9e398bd50a68cc67c32ac7c5ecf1dbd76e770e022103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 9281c516cfdef088225e456b617d9be1a5f1210609c2b057cbae2a5079abd86b
[INFO] running `Command { std: "docker" "start" "-a" "9281c516cfdef088225e456b617d9be1a5f1210609c2b057cbae2a5079abd86b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling awint_internals v0.4.0
[INFO] [stderr]    Compiling awint_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![cfg_attr(feature = "const_support", feature(const_maybe_uninit_as_mut_ptr))]
[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:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![cfg_attr(feature = "const_support", feature(const_mut_refs))]
[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:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "const_support", feature(const_ptr_read))]
[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:15:40
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![cfg_attr(feature = "const_support", feature(const_ptr_write))]
[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:16:40
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "const_support", feature(const_intrinsic_copy))]
[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:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![cfg_attr(feature = "const_support", feature(const_slice_from_raw_parts))]
[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:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![cfg_attr(feature = "const_support", feature(const_swap))]
[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:19:40
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "const_support", feature(const_option))]
[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:12:48
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![cfg_attr(feature = "const_support", feature(const_maybe_uninit_as_mut_ptr))]
[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:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "const_support", feature(const_ptr_read))]
[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:15:48
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![cfg_attr(feature = "const_support", feature(const_ptr_write))]
[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:16:48
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "const_support", feature(const_intrinsic_copy))]
[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:17:48
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![cfg_attr(feature = "const_support", feature(const_slice_from_raw_parts))]
[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:18:48
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![cfg_attr(feature = "const_support", feature(const_swap))]
[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:19:48
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "const_support", feature(const_option))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 15 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `awint_core` due to 16 previous errors
[INFO] running `Command { std: "docker" "inspect" "9281c516cfdef088225e456b617d9be1a5f1210609c2b057cbae2a5079abd86b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9281c516cfdef088225e456b617d9be1a5f1210609c2b057cbae2a5079abd86b", kill_on_drop: false }`
[INFO] [stdout] 9281c516cfdef088225e456b617d9be1a5f1210609c2b057cbae2a5079abd86b