[INFO] fetching crate net_sync_tokio 0.2.1...
[INFO] testing net_sync_tokio-0.2.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate net_sync_tokio 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate net_sync_tokio 0.2.1 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] started tweaking crates.io crate net_sync_tokio 0.2.1
[INFO] finished tweaking crates.io crate net_sync_tokio 0.2.1
[INFO] tweaked toml for crates.io crate net_sync_tokio 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 thread-id v4.0.0
[INFO] [stderr]   Downloaded bincode2 v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 6bdd8e410fe30c2492a62d76441133bdf89b0e92c5e0e705a82ab8ca83b3f354
[INFO] running `Command { std: "docker" "start" "-a" "6bdd8e410fe30c2492a62d76441133bdf89b0e92c5e0e705a82ab8ca83b3f354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bdd8e410fe30c2492a62d76441133bdf89b0e92c5e0e705a82ab8ca83b3f354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdd8e410fe30c2492a62d76441133bdf89b0e92c5e0e705a82ab8ca83b3f354", kill_on_drop: false }`
[INFO] [stdout] 6bdd8e410fe30c2492a62d76441133bdf89b0e92c5e0e705a82ab8ca83b3f354
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 48ced9c119950361d7e61bede8777caf454671a1c53496281fe0b11ba2b9711b
[INFO] running `Command { std: "docker" "start" "-a" "48ced9c119950361d7e61bede8777caf454671a1c53496281fe0b11ba2b9711b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling thread-id v4.0.0
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling bincode2 v2.0.1
[INFO] [stderr]    Compiling net_sync_tokio v0.2.1 (/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)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing required bound on `BorrowedSubscriptionType`
[INFO] [stdout]   --> src/sync/subscription.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     type BorrowedSubscriptionType<'a>: SubscriptionBiStream<ID=Self::ID, Conn=Self::UnderlyingConn> + Into<Self::SubscriptionType>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |                                                                                                                                   |
[INFO] [stdout]    |                                                                                                                                   help: add the required where clause: `where Self: 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this bound is currently required to ensure that impls have maximum flexibility
[INFO] [stdout]    = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net_sync_tokio` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "48ced9c119950361d7e61bede8777caf454671a1c53496281fe0b11ba2b9711b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ced9c119950361d7e61bede8777caf454671a1c53496281fe0b11ba2b9711b", kill_on_drop: false }`
[INFO] [stdout] 48ced9c119950361d7e61bede8777caf454671a1c53496281fe0b11ba2b9711b