[INFO] fetching crate holochain_wasm_utils 0.0.52-alpha2...
[INFO] checking holochain_wasm_utils-0.0.52-alpha2 against beta for pr-78714
[INFO] extracting crate holochain_wasm_utils 0.0.52-alpha2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate holochain_wasm_utils 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 holochain_wasm_utils 0.0.52-alpha2
[INFO] finished tweaking crates.io crate holochain_wasm_utils 0.0.52-alpha2
[INFO] tweaked toml for crates.io crate holochain_wasm_utils 0.0.52-alpha2 written to /workspace/builds/worker-12/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8a0684c0b59627ce28e881f4af6b2943f2ea0463da7a5e0e2d87be2e8d09ca4d
[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" "8a0684c0b59627ce28e881f4af6b2943f2ea0463da7a5e0e2d87be2e8d09ca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a0684c0b59627ce28e881f4af6b2943f2ea0463da7a5e0e2d87be2e8d09ca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a0684c0b59627ce28e881f4af6b2943f2ea0463da7a5e0e2d87be2e8d09ca4d", kill_on_drop: false }`
[INFO] [stdout] 8a0684c0b59627ce28e881f4af6b2943f2ea0463da7a5e0e2d87be2e8d09ca4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] fac1d214c9970ae605531d0b0f2326b87b024b88d5666bd847e385f947d4db20
[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" "fac1d214c9970ae605531d0b0f2326b87b024b88d5666bd847e385f947d4db20", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling holochain_json_api v0.0.23
[INFO] [stderr]     Checking reed-solomon v0.2.1
[INFO] [stderr]     Checking sha1 v0.5.0
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling holochain_persistence_api v0.0.18
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling backtrace v0.3.27
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking hcid v0.0.6
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking multihash v0.8.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling mashup-impl v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking mashup v0.1.12
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num-bigint v0.3.1
[INFO] [stderr]     Checking wasmi v0.4.4
[INFO] [stderr]    Compiling holochain_core_types v0.0.52-alpha2
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[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 synstructure v0.10.2
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]    Compiling zeroize_derive v0.9.3
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking toml v0.5.0
[INFO] [stderr]     Checking holochain_locksmith v0.0.52-alpha2
[INFO] [stderr]     Checking zeroize v0.9.2
[INFO] [stderr]     Checking lib3h_crypto_api v0.0.42
[INFO] [stderr]     Checking holochain_logging v0.0.7
[INFO] [stderr]    Compiling holochain_json_derive 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] running `Command { std: "docker" "inspect" "fac1d214c9970ae605531d0b0f2326b87b024b88d5666bd847e385f947d4db20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac1d214c9970ae605531d0b0f2326b87b024b88d5666bd847e385f947d4db20", kill_on_drop: false }`
[INFO] [stdout] fac1d214c9970ae605531d0b0f2326b87b024b88d5666bd847e385f947d4db20