[INFO] fetching crate printhor-hwa-common 0.0.1...
[INFO] testing printhor-hwa-common-0.0.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate printhor-hwa-common 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate printhor-hwa-common 0.0.1 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 printhor-hwa-common 0.0.1
[INFO] finished tweaking crates.io crate printhor-hwa-common 0.0.1
[INFO] tweaked toml for crates.io crate printhor-hwa-common 0.0.1 written to /workspace/builds/worker-1-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 embedded-io-async v0.6.1
[INFO] [stderr]   Downloaded embassy-sync v0.4.0
[INFO] [stderr]   Downloaded static_cell v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2f62e16dfe89cdc767684b9d6605027de8400f6d5963849804f63cb260d68559
[INFO] running `Command { std: "docker" "start" "-a" "2f62e16dfe89cdc767684b9d6605027de8400f6d5963849804f63cb260d68559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f62e16dfe89cdc767684b9d6605027de8400f6d5963849804f63cb260d68559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f62e16dfe89cdc767684b9d6605027de8400f6d5963849804f63cb260d68559", kill_on_drop: false }`
[INFO] [stdout] 2f62e16dfe89cdc767684b9d6605027de8400f6d5963849804f63cb260d68559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e13c7845c4529bd4fe9ff0090b17b4e9cffa2415a2e1c18cdd59aaca5264b012
[INFO] running `Command { std: "docker" "start" "-a" "e13c7845c4529bd4fe9ff0090b17b4e9cffa2415a2e1c18cdd59aaca5264b012", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling embassy-sync v0.4.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling static_cell v2.0.0
[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/embassy-sync-0.4.0/src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "nightly", 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 `embassy-sync` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e13c7845c4529bd4fe9ff0090b17b4e9cffa2415a2e1c18cdd59aaca5264b012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13c7845c4529bd4fe9ff0090b17b4e9cffa2415a2e1c18cdd59aaca5264b012", kill_on_drop: false }`
[INFO] [stdout] e13c7845c4529bd4fe9ff0090b17b4e9cffa2415a2e1c18cdd59aaca5264b012
