[INFO] fetching crate async-embedded-traits 0.1.3...
[INFO] testing async-embedded-traits-0.1.3 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate async-embedded-traits 0.1.3 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate async-embedded-traits 0.1.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-embedded-traits 0.1.3
[INFO] finished tweaking crates.io crate async-embedded-traits 0.1.3
[INFO] tweaked toml for crates.io crate async-embedded-traits 0.1.3 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b87fee2011c05c55c672f86f4aa242809431ba65149b87cb2b7cf629099562
[INFO] running `Command { std: "docker" "start" "-a" "e7b87fee2011c05c55c672f86f4aa242809431ba65149b87cb2b7cf629099562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b87fee2011c05c55c672f86f4aa242809431ba65149b87cb2b7cf629099562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b87fee2011c05c55c672f86f4aa242809431ba65149b87cb2b7cf629099562", kill_on_drop: false }`
[INFO] [stdout] e7b87fee2011c05c55c672f86f4aa242809431ba65149b87cb2b7cf629099562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d5f83d49ed2cafc114e02e9881fb5f7419b53f8a1f0b1c6e4cd4056c1c12ed
[INFO] running `Command { std: "docker" "start" "-a" "f9d5f83d49ed2cafc114e02e9881fb5f7419b53f8a1f0b1c6e4cd4056c1c12ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling async-embedded-traits v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_associated_types)]
[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 `async-embedded-traits` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f9d5f83d49ed2cafc114e02e9881fb5f7419b53f8a1f0b1c6e4cd4056c1c12ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d5f83d49ed2cafc114e02e9881fb5f7419b53f8a1f0b1c6e4cd4056c1c12ed", kill_on_drop: false }`
[INFO] [stdout] f9d5f83d49ed2cafc114e02e9881fb5f7419b53f8a1f0b1c6e4cd4056c1c12ed
