[INFO] fetching crate elrond-wasm-sc-dns 1.1.0...
[INFO] testing elrond-wasm-sc-dns-1.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate elrond-wasm-sc-dns 1.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate elrond-wasm-sc-dns 1.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elrond-wasm-sc-dns 1.1.0
[INFO] finished tweaking crates.io crate elrond-wasm-sc-dns 1.1.0
[INFO] tweaked toml for crates.io crate elrond-wasm-sc-dns 1.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded elrond-codec-derive v0.5.3
[INFO] [stderr]   Downloaded mandos v0.7.2
[INFO] [stderr]   Downloaded elrond-codec v0.5.3
[INFO] [stderr]   Downloaded elrond-wasm-node v0.16.2
[INFO] [stderr]   Downloaded elrond-wasm-module-features v0.16.2
[INFO] [stderr]   Downloaded elrond-wasm-debug v0.16.2
[INFO] [stderr]   Downloaded elrond-wasm-derive v0.16.2
[INFO] [stderr]   Downloaded elrond-wasm v0.16.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f94ef54998cf5d2447dcd5038cf6da5368bbe00d51c679c04f43238fbb707a53
[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" "f94ef54998cf5d2447dcd5038cf6da5368bbe00d51c679c04f43238fbb707a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f94ef54998cf5d2447dcd5038cf6da5368bbe00d51c679c04f43238fbb707a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94ef54998cf5d2447dcd5038cf6da5368bbe00d51c679c04f43238fbb707a53", kill_on_drop: false }`
[INFO] [stdout] f94ef54998cf5d2447dcd5038cf6da5368bbe00d51c679c04f43238fbb707a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e79c47bfc2cbc7739de7082b00ea8df445b24fe1e40a382216cda41be8941d6
[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" "8e79c47bfc2cbc7739de7082b00ea8df445b24fe1e40a382216cda41be8941d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling hex-literal v0.3.3
[INFO] [stderr]    Compiling elrond-codec-derive v0.5.3
[INFO] [stderr]    Compiling elrond-wasm-derive v0.16.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling elrond-codec v0.5.3
[INFO] [stderr]    Compiling elrond-wasm v0.16.2
[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/elrond-wasm-0.16.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/elrond-wasm-0.16.2/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_trait_v2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/elrond-wasm-0.16.2/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(control_flow_enum)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `elrond-wasm` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "8e79c47bfc2cbc7739de7082b00ea8df445b24fe1e40a382216cda41be8941d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e79c47bfc2cbc7739de7082b00ea8df445b24fe1e40a382216cda41be8941d6", kill_on_drop: false }`
[INFO] [stdout] 8e79c47bfc2cbc7739de7082b00ea8df445b24fe1e40a382216cda41be8941d6