[INFO] fetching crate collectivity 3.2.2...
[INFO] testing collectivity-3.2.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate collectivity 3.2.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate collectivity 3.2.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/.cargo/config
[INFO] started tweaking crates.io crate collectivity 3.2.2
[INFO] finished tweaking crates.io crate collectivity 3.2.2
[INFO] tweaked toml for crates.io crate collectivity 3.2.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate collectivity 3.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded value-trait v0.2.9
[INFO] [stderr]   Downloaded halfbrown v0.1.12
[INFO] [stderr]   Downloaded simd-json v0.4.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00b8e8d244a1be9e6ab0ce8e3b862be054f1609d7a46ccd35ac326a097657c77
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00b8e8d244a1be9e6ab0ce8e3b862be054f1609d7a46ccd35ac326a097657c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00b8e8d244a1be9e6ab0ce8e3b862be054f1609d7a46ccd35ac326a097657c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00b8e8d244a1be9e6ab0ce8e3b862be054f1609d7a46ccd35ac326a097657c77", kill_on_drop: false }`
[INFO] [stdout] 00b8e8d244a1be9e6ab0ce8e3b862be054f1609d7a46ccd35ac326a097657c77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f622eab3ff8f67d923d2d8f2fe56d1de6d188566e981f31aea684fb612de192
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f622eab3ff8f67d923d2d8f2fe56d1de6d188566e981f31aea684fb612de192", kill_on_drop: false }`
[INFO] [stderr]    Compiling collectivity v3.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_associated_types, associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collectivity` due to 2 previous errors
[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] running `Command { std: "docker" "inspect" "8f622eab3ff8f67d923d2d8f2fe56d1de6d188566e981f31aea684fb612de192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f622eab3ff8f67d923d2d8f2fe56d1de6d188566e981f31aea684fb612de192", kill_on_drop: false }`
[INFO] [stdout] 8f622eab3ff8f67d923d2d8f2fe56d1de6d188566e981f31aea684fb612de192