[INFO] cloning repository https://github.com/iovxw/babel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iovxw/babel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01d16153443656cfc54338c07c738aca881a401
[INFO] testing iovxw/babel against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fbabel" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iovxw/babel on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iovxw/babel
[INFO] finished tweaking git repo https://github.com/iovxw/babel
[INFO] tweaked toml for git repo https://github.com/iovxw/babel written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/iovxw/babel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded selectors v0.19.0
[INFO] [stderr]   Downloaded tokio-tls v0.2.0
[INFO] [stderr]   Downloaded lazycell v1.1.0
[INFO] [stderr]   Downloaded cssparser v0.23.10
[INFO] [stderr]   Downloaded cssparser-macros v0.3.4
[INFO] [stderr]   Downloaded markup5ever v0.7.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.5
[INFO] [stderr]   Downloaded termcolor v1.0.3
[INFO] [stderr]   Downloaded atom_syndication v0.6.0
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.6
[INFO] [stderr]   Downloaded tokio-channel v0.1.0
[INFO] [stderr]   Downloaded scraper v0.7.0
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.6
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.6
[INFO] [stderr]   Downloaded http v0.1.12
[INFO] [stderr]   Downloaded actix-web v0.7.7
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.6
[INFO] [stderr]   Downloaded html5ever v0.22.3
[INFO] [stderr]   Downloaded pin-utils v0.1.0-alpha.2
[INFO] [stderr]   Downloaded quick-xml v0.12.3
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.6
[INFO] [stderr]   Downloaded tokio-async-await v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48559e69717ed32d86c95b9debe859d752cf87f0939f482f627bbac2df3e175d
[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" "48559e69717ed32d86c95b9debe859d752cf87f0939f482f627bbac2df3e175d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48559e69717ed32d86c95b9debe859d752cf87f0939f482f627bbac2df3e175d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48559e69717ed32d86c95b9debe859d752cf87f0939f482f627bbac2df3e175d", kill_on_drop: false }`
[INFO] [stdout] 48559e69717ed32d86c95b9debe859d752cf87f0939f482f627bbac2df3e175d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de3415bc55158da0bb5a7f3f359d2b3040028abbfc8548655fe91465c1c54ad7
[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" "de3415bc55158da0bb5a7f3f359d2b3040028abbfc8548655fe91465c1c54ad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling futures v0.1.24
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling lazycell v1.1.0
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.4
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[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/pin-utils-0.1.0-alpha.2/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pin)]
[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 `pin-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" "de3415bc55158da0bb5a7f3f359d2b3040028abbfc8548655fe91465c1c54ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3415bc55158da0bb5a7f3f359d2b3040028abbfc8548655fe91465c1c54ad7", kill_on_drop: false }`
[INFO] [stdout] de3415bc55158da0bb5a7f3f359d2b3040028abbfc8548655fe91465c1c54ad7
