[INFO] fetching crate elrond-wasm 0.30.0...
[INFO] testing elrond-wasm-0.30.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate elrond-wasm 0.30.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate elrond-wasm 0.30.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elrond-wasm 0.30.0
[INFO] finished tweaking crates.io crate elrond-wasm 0.30.0
[INFO] tweaked toml for crates.io crate elrond-wasm 0.30.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d857b8243abb5f3d8f053d30454645a27e7deccf0d06fbbfb0e98c55d983ec31
[INFO] running `Command { std: "docker" "start" "-a" "d857b8243abb5f3d8f053d30454645a27e7deccf0d06fbbfb0e98c55d983ec31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d857b8243abb5f3d8f053d30454645a27e7deccf0d06fbbfb0e98c55d983ec31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d857b8243abb5f3d8f053d30454645a27e7deccf0d06fbbfb0e98c55d983ec31", kill_on_drop: false }`
[INFO] [stdout] d857b8243abb5f3d8f053d30454645a27e7deccf0d06fbbfb0e98c55d983ec31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00a935480eb160f0a9290232f6941af4df01d2dd399ad47fb3c0498b0694bfd7
[INFO] running `Command { std: "docker" "start" "-a" "00a935480eb160f0a9290232f6941af4df01d2dd399ad47fb3c0498b0694bfd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling radix_trie v0.1.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling elrond-codec-derive v0.10.0
[INFO] [stderr]    Compiling elrond-wasm-derive v0.30.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/elrond-wasm-derive-0.30.0/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_quote)]
[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 `elrond-wasm-derive` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "00a935480eb160f0a9290232f6941af4df01d2dd399ad47fb3c0498b0694bfd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00a935480eb160f0a9290232f6941af4df01d2dd399ad47fb3c0498b0694bfd7", kill_on_drop: false }`
[INFO] [stdout] 00a935480eb160f0a9290232f6941af4df01d2dd399ad47fb3c0498b0694bfd7