[INFO] fetching crate ector 0.5.0...
[INFO] testing ector-0.5.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate ector 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ector 0.5.0 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 ector 0.5.0
[INFO] finished tweaking crates.io crate ector 0.5.0
[INFO] tweaked toml for crates.io crate ector 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ector 0.5.0 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" "+1.75.0" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-rc.1
[INFO] [stderr]   Downloaded embedded-io v0.5.0
[INFO] [stderr]   Downloaded embassy-macros v0.2.1
[INFO] [stderr]   Downloaded ector-macros v0.5.0
[INFO] [stderr]   Downloaded embedded-hal-async v1.0.0-rc.1
[INFO] [stderr]   Downloaded static_cell v1.2.0
[INFO] [stderr]   Downloaded embassy-time v0.1.3
[INFO] [stderr]   Downloaded embassy-executor v0.3.0
[INFO] [stderr]   Downloaded embedded-io-async v0.5.0
[INFO] [stderr]   Downloaded embassy-sync v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b61b2cb4bc8f74b80630c6b4ce4957439e41c5fa557723a73810e33ccdd04481
[INFO] running `Command { std: "docker" "start" "-a" "b61b2cb4bc8f74b80630c6b4ce4957439e41c5fa557723a73810e33ccdd04481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b61b2cb4bc8f74b80630c6b4ce4957439e41c5fa557723a73810e33ccdd04481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61b2cb4bc8f74b80630c6b4ce4957439e41c5fa557723a73810e33ccdd04481", kill_on_drop: false }`
[INFO] [stdout] b61b2cb4bc8f74b80630c6b4ce4957439e41c5fa557723a73810e33ccdd04481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0c6c1a2667f39b9808ef2b5a6e0692c6b239e2d3e2bfc78d6a9076fe5c77bbf7
[INFO] running `Command { std: "docker" "start" "-a" "0c6c1a2667f39b9808ef2b5a6e0692c6b239e2d3e2bfc78d6a9076fe5c77bbf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling atomic-polyfill v1.0.3
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling embassy-sync v0.3.0
[INFO] [stderr]    Compiling embassy-executor v0.3.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-io v0.5.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling embedded-io-async v0.5.0
[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/embedded-io-async-0.5.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_fn_in_trait, impl_trait_projections)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `impl_trait_projections` has been stable since `1.74.0` and no longer requires an attribute to enable
[INFO] [stdout]   = help: the feature `impl_trait_projections` has been stable since `1.74.0` and no longer requires an attribute to enable
[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 `embedded-io-async` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0c6c1a2667f39b9808ef2b5a6e0692c6b239e2d3e2bfc78d6a9076fe5c77bbf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6c1a2667f39b9808ef2b5a6e0692c6b239e2d3e2bfc78d6a9076fe5c77bbf7", kill_on_drop: false }`
[INFO] [stdout] 0c6c1a2667f39b9808ef2b5a6e0692c6b239e2d3e2bfc78d6a9076fe5c77bbf7
