[INFO] fetching crate runa-io 0.0.1-alpha1...
[INFO] testing runa-io-0.0.1-alpha1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate runa-io 0.0.1-alpha1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate runa-io 0.0.1-alpha1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate runa-io 0.0.1-alpha1
[INFO] finished tweaking crates.io crate runa-io 0.0.1-alpha1
[INFO] tweaked toml for crates.io crate runa-io 0.0.1-alpha1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded runa-wayland-scanner v0.1.0
[INFO] [stderr]   Downloaded runa-io-traits v0.0.1-alpha1
[INFO] [stderr]   Downloaded runa-wayland-scanner-macros v0.1.0
[INFO] [stderr]   Downloaded linkify v0.9.0
[INFO] [stderr]   Downloaded arbitrary v1.3.2
[INFO] [stderr]   Downloaded runa-wayland-scanner-codegen v0.1.0
[INFO] [stderr]   Downloaded runa-wayland-spec-parser v0.1.0
[INFO] [stderr]   Downloaded runa-wayland-types v0.1.0
[INFO] [stderr]   Downloaded runa-wayland-protocols v0.1.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 641c965fd4e0cbd287bd6ad5c879c2fce93a4652fc4d87c521b3e37b5f0ac8a4
[INFO] running `Command { std: "docker" "start" "-a" "641c965fd4e0cbd287bd6ad5c879c2fce93a4652fc4d87c521b3e37b5f0ac8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "641c965fd4e0cbd287bd6ad5c879c2fce93a4652fc4d87c521b3e37b5f0ac8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "641c965fd4e0cbd287bd6ad5c879c2fce93a4652fc4d87c521b3e37b5f0ac8a4", kill_on_drop: false }`
[INFO] [stdout] 641c965fd4e0cbd287bd6ad5c879c2fce93a4652fc4d87c521b3e37b5f0ac8a4
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3890d71e45de6705784ad3ab0d0d900cda0f8c6fbc78756086d3a1e02ce17a4f
[INFO] running `Command { std: "docker" "start" "-a" "3890d71e45de6705784ad3ab0d0d900cda0f8c6fbc78756086d3a1e02ce17a4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-lite v2.1.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling concurrent-queue v2.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling event-listener v4.0.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling async-lock v3.2.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling waker-fn v1.1.1
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling async-task v4.7.0
[INFO] [stderr]    Compiling piper v0.2.1
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling async-channel v2.1.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling event-listener v3.1.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling async-executor v1.8.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling runa-io-traits v0.0.1-alpha1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/runa-io-traits-0.0.1-alpha1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runa-io-traits` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3890d71e45de6705784ad3ab0d0d900cda0f8c6fbc78756086d3a1e02ce17a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3890d71e45de6705784ad3ab0d0d900cda0f8c6fbc78756086d3a1e02ce17a4f", kill_on_drop: false }`
[INFO] [stdout] 3890d71e45de6705784ad3ab0d0d900cda0f8c6fbc78756086d3a1e02ce17a4f
