[INFO] fetching crate rabbithole-endpoint-actix 0.3.1...
[INFO] documenting rabbithole-endpoint-actix-0.3.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rabbithole-endpoint-actix 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rabbithole-endpoint-actix 0.3.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rabbithole-endpoint-actix 0.3.1
[INFO] finished tweaking crates.io crate rabbithole-endpoint-actix 0.3.1
[INFO] tweaked toml for crates.io crate rabbithole-endpoint-actix 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rabbithole-endpoint-actix 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rabbithole-derive v0.3.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.5
[INFO] [stderr]   Downloaded frunk_derives v0.3.0
[INFO] [stderr]   Downloaded rsql-rs v0.2.0
[INFO] [stderr]   Downloaded frunk_proc_macros v0.0.3
[INFO] [stderr]   Downloaded frunk_core v0.3.0
[INFO] [stderr]   Downloaded thiserror v1.0.5
[INFO] [stderr]   Downloaded frunk_proc_macros_impl v0.0.3
[INFO] [stderr]   Downloaded frunk v0.3.0
[INFO] [stderr]   Downloaded rabbithole v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 106065ea54a00f1713166294cf959fa9e5f040f690577cd87b9261802d293a37
[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" "106065ea54a00f1713166294cf959fa9e5f040f690577cd87b9261802d293a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "106065ea54a00f1713166294cf959fa9e5f040f690577cd87b9261802d293a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106065ea54a00f1713166294cf959fa9e5f040f690577cd87b9261802d293a37", kill_on_drop: false }`
[INFO] [stdout] 106065ea54a00f1713166294cf959fa9e5f040f690577cd87b9261802d293a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e92e5bfdf213a5668b1f8b5830bc18a25117366a2570690f19e8868381cc73f
[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" "1e92e5bfdf213a5668b1f8b5830bc18a25117366a2570690f19e8868381cc73f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling frunk_core v0.3.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking actix-threadpool v0.1.2
[INFO] [stderr]     Checking signal-hook v0.1.11
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking actix-rt v0.2.6
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking actix-server-config v0.1.2
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking actix-server v0.6.1
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]     Checking actix-testing v0.1.0
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.3
[INFO] [stderr]    Compiling frunk_derives v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.5
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling async-trait v0.1.18
[INFO] [stderr]    Compiling actix-web-codegen v0.1.3
[INFO] [stderr]     Checking thiserror v1.0.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling rabbithole-derive v0.3.1
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.3
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking frunk_proc_macros v0.0.3
[INFO] [stderr]     Checking frunk v0.3.0
[INFO] [stderr]     Checking const-random v0.1.6
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking actix-connect v0.2.5
[INFO] [stderr]     Checking serde v1.0.102
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking actix-router v0.1.5
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking actix-http v0.2.11
[INFO] [stderr]     Checking rsql-rs v0.2.0
[INFO] [stderr]     Checking config v0.9.3
[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/rsql-rs-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(backtrace)]
[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 `rsql-rs`.
[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" "1e92e5bfdf213a5668b1f8b5830bc18a25117366a2570690f19e8868381cc73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e92e5bfdf213a5668b1f8b5830bc18a25117366a2570690f19e8868381cc73f", kill_on_drop: false }`
[INFO] [stdout] 1e92e5bfdf213a5668b1f8b5830bc18a25117366a2570690f19e8868381cc73f