[INFO] fetching crate hdk_proc_macros 0.0.52-alpha2...
[INFO] checking hdk_proc_macros-0.0.52-alpha2 against beta for pr-78714
[INFO] extracting crate hdk_proc_macros 0.0.52-alpha2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hdk_proc_macros 0.0.52-alpha2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hdk_proc_macros 0.0.52-alpha2
[INFO] finished tweaking crates.io crate hdk_proc_macros 0.0.52-alpha2
[INFO] tweaked toml for crates.io crate hdk_proc_macros 0.0.52-alpha2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83f32bf0b2b359b39660a804897fa87f3c3031faf87e7bd9730a71a0676616ff
[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" "83f32bf0b2b359b39660a804897fa87f3c3031faf87e7bd9730a71a0676616ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83f32bf0b2b359b39660a804897fa87f3c3031faf87e7bd9730a71a0676616ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f32bf0b2b359b39660a804897fa87f3c3031faf87e7bd9730a71a0676616ff", kill_on_drop: false }`
[INFO] [stdout] 83f32bf0b2b359b39660a804897fa87f3c3031faf87e7bd9730a71a0676616ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97b4c77011d1d671c7a458519c8deff448e6c0f529a20f7a878f6f5dd95dae25
[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" "97b4c77011d1d671c7a458519c8deff448e6c0f529a20f7a878f6f5dd95dae25", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking backtrace-sys v0.1.37
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking toml v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking regex v1.1.2
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking backtrace v0.3.27
[INFO] [stderr]     Checking multihash v0.8.0
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num-bigint v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling mashup-impl v0.1.12
[INFO] [stderr]     Checking wasmi v0.4.4
[INFO] [stderr]     Checking holochain_locksmith v0.0.52-alpha2
[INFO] [stderr]     Checking mashup v0.1.12
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking rust-base58 v0.0.4
[INFO] [stderr]    Compiling holochain_core_types v0.0.52-alpha2
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking holochain_logging v0.0.7
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling holochain_json_derive v0.0.23
[INFO] [stderr]    Compiling zeroize_derive v0.9.3
[INFO] [stderr]     Checking holochain_json_api v0.0.23
[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/holochain_json_api-0.0.23/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(try_trait)]
[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/holochain_json_api-0.0.23/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[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 `holochain_json_api`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "97b4c77011d1d671c7a458519c8deff448e6c0f529a20f7a878f6f5dd95dae25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b4c77011d1d671c7a458519c8deff448e6c0f529a20f7a878f6f5dd95dae25", kill_on_drop: false }`
[INFO] [stdout] 97b4c77011d1d671c7a458519c8deff448e6c0f529a20f7a878f6f5dd95dae25