[INFO] fetching crate heim-process 0.0.11...
[INFO] checking heim-process-0.0.11 against beta for pr-78714
[INFO] extracting crate heim-process 0.0.11 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate heim-process 0.0.11 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 heim-process 0.0.11
[INFO] finished tweaking crates.io crate heim-process 0.0.11
[INFO] tweaked toml for crates.io crate heim-process 0.0.11 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate heim-process 0.0.11 already has a lockfile, it will not be regenerated
[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] 0cd685c71391c4b199b48209392099bd08e6004ff33cb558f3401a78bad82e27
[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" "0cd685c71391c4b199b48209392099bd08e6004ff33cb558f3401a78bad82e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd685c71391c4b199b48209392099bd08e6004ff33cb558f3401a78bad82e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd685c71391c4b199b48209392099bd08e6004ff33cb558f3401a78bad82e27", kill_on_drop: false }`
[INFO] [stdout] 0cd685c71391c4b199b48209392099bd08e6004ff33cb558f3401a78bad82e27
[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] bee366eb66816855e52f7ee5d6832234213283f31c4478d1a225363601c4bccb
[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" "bee366eb66816855e52f7ee5d6832234213283f31c4478d1a225363601c4bccb", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]    Compiling heim-common v0.0.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling heim-host v0.0.11
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]     Checking macaddr v1.0.1
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling heim-derive v0.0.10
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking uom v0.30.0
[INFO] [stderr]     Checking version-sync v0.8.1
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking heim-runtime v0.0.7
[INFO] [stderr]     Checking heim-net v0.0.11
[INFO] [stderr]     Checking heim-cpu v0.0.11
[INFO] [stderr]     Checking heim-process v0.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/process.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure, test)]
[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 `heim-process`
[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" "bee366eb66816855e52f7ee5d6832234213283f31c4478d1a225363601c4bccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee366eb66816855e52f7ee5d6832234213283f31c4478d1a225363601c4bccb", kill_on_drop: false }`
[INFO] [stdout] bee366eb66816855e52f7ee5d6832234213283f31c4478d1a225363601c4bccb