[INFO] fetching crate coap-handler-implementations 0.3.3...
[INFO] testing coap-handler-implementations-0.3.3 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate coap-handler-implementations 0.3.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate coap-handler-implementations 0.3.3 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coap-handler-implementations 0.3.3
[INFO] finished tweaking crates.io crate coap-handler-implementations 0.3.3
[INFO] tweaked toml for crates.io crate coap-handler-implementations 0.3.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b9844f9b87a1477964f9804923ec2f1a9c864c453d0bc20f8ba1b881edf6c95c
[INFO] running `Command { std: "docker" "start" "-a" "b9844f9b87a1477964f9804923ec2f1a9c864c453d0bc20f8ba1b881edf6c95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9844f9b87a1477964f9804923ec2f1a9c864c453d0bc20f8ba1b881edf6c95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9844f9b87a1477964f9804923ec2f1a9c864c453d0bc20f8ba1b881edf6c95c", kill_on_drop: false }`
[INFO] [stdout] b9844f9b87a1477964f9804923ec2f1a9c864c453d0bc20f8ba1b881edf6c95c
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81645e109a11af6f341f1076aa5f9b72a7b43c849d8dbc8b8b49e9a12c0aa8a0
[INFO] running `Command { std: "docker" "start" "-a" "81645e109a11af6f341f1076aa5f9b72a7b43c849d8dbc8b8b49e9a12c0aa8a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling coap-numbers v0.1.2
[INFO] [stderr]    Compiling coap-message v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/coap-message-0.2.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![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 `coap-message` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "81645e109a11af6f341f1076aa5f9b72a7b43c849d8dbc8b8b49e9a12c0aa8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81645e109a11af6f341f1076aa5f9b72a7b43c849d8dbc8b8b49e9a12c0aa8a0", kill_on_drop: false }`
[INFO] [stdout] 81645e109a11af6f341f1076aa5f9b72a7b43c849d8dbc8b8b49e9a12c0aa8a0