[INFO] fetching crate spwf 0.0.2...
[INFO] testing spwf-0.0.2 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate spwf 0.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate spwf 0.0.2 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spwf 0.0.2
[INFO] finished tweaking crates.io crate spwf 0.0.2
[INFO] tweaked toml for crates.io crate spwf 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate spwf 0.0.2 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minstant v0.1.2
[INFO] [stderr]   Downloaded aoko v0.3.0-alpha.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0927ae6521e966bcae3a1550fb06988ff37c9d494d6c88d719af7b206bb478a8
[INFO] running `Command { std: "docker" "start" "-a" "0927ae6521e966bcae3a1550fb06988ff37c9d494d6c88d719af7b206bb478a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0927ae6521e966bcae3a1550fb06988ff37c9d494d6c88d719af7b206bb478a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0927ae6521e966bcae3a1550fb06988ff37c9d494d6c88d719af7b206bb478a8", kill_on_drop: false }`
[INFO] [stdout] 0927ae6521e966bcae3a1550fb06988ff37c9d494d6c88d719af7b206bb478a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ee598f0078efde2c3444f3eb0de882403940c2511725bac55ab9a14e77db5d2
[INFO] running `Command { std: "docker" "start" "-a" "5ee598f0078efde2c3444f3eb0de882403940c2511725bac55ab9a14e77db5d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling minstant v0.1.2
[INFO] [stderr]    Compiling aoko v0.3.0-alpha.24
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/aoko-0.3.0-alpha.24/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(impl_trait_in_fn_trait_return)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/aoko-0.3.0-alpha.24/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `aoko` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5ee598f0078efde2c3444f3eb0de882403940c2511725bac55ab9a14e77db5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ee598f0078efde2c3444f3eb0de882403940c2511725bac55ab9a14e77db5d2", kill_on_drop: false }`
[INFO] [stdout] 5ee598f0078efde2c3444f3eb0de882403940c2511725bac55ab9a14e77db5d2
