[INFO] fetching crate enso-data 0.1.2...
[INFO] checking enso-data-0.1.2 against beta for pr-78714
[INFO] extracting crate enso-data 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate enso-data 0.1.2 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 enso-data 0.1.2
[INFO] finished tweaking crates.io crate enso-data 0.1.2
[INFO] tweaked toml for crates.io crate enso-data 0.1.2 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] 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] b95842798ef4222afc85841ec4ae69d113fdf7020bf5cff1881e71fa31be0822
[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" "b95842798ef4222afc85841ec4ae69d113fdf7020bf5cff1881e71fa31be0822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b95842798ef4222afc85841ec4ae69d113fdf7020bf5cff1881e71fa31be0822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95842798ef4222afc85841ec4ae69d113fdf7020bf5cff1881e71fa31be0822", kill_on_drop: false }`
[INFO] [stdout] b95842798ef4222afc85841ec4ae69d113fdf7020bf5cff1881e71fa31be0822
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c8c075168d205ed4ac7c8535e3973ebcd5fe6d08c7b24d0b0e99a7a84b00ea9
[INFO] running `Command { std: "docker" "start" "-a" "1c8c075168d205ed4ac7c8535e3973ebcd5fe6d08c7b24d0b0e99a7a84b00ea9", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]     Checking weak-table v0.2.4
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling enso-macro-utils v0.1.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking rand_distr 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/enso-macro-utils-0.1.1/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(trait_alias)]
[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 `enso-macro-utils`
[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" "1c8c075168d205ed4ac7c8535e3973ebcd5fe6d08c7b24d0b0e99a7a84b00ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c8c075168d205ed4ac7c8535e3973ebcd5fe6d08c7b24d0b0e99a7a84b00ea9", kill_on_drop: false }`
[INFO] [stdout] 1c8c075168d205ed4ac7c8535e3973ebcd5fe6d08c7b24d0b0e99a7a84b00ea9