[INFO] fetching crate fffft 0.1.2...
[INFO] documenting fffft-0.1.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate fffft 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate fffft 0.1.2 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 crates.io crate fffft 0.1.2
[INFO] finished tweaking crates.io crate fffft 0.1.2
[INFO] tweaked toml for crates.io crate fffft 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 734ed236fa40f7dd7963e72341981fd87beca15aa99ad84ea64ce2d3dc4b8cc2
[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" "734ed236fa40f7dd7963e72341981fd87beca15aa99ad84ea64ce2d3dc4b8cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "734ed236fa40f7dd7963e72341981fd87beca15aa99ad84ea64ce2d3dc4b8cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734ed236fa40f7dd7963e72341981fd87beca15aa99ad84ea64ce2d3dc4b8cc2", kill_on_drop: false }`
[INFO] [stdout] 734ed236fa40f7dd7963e72341981fd87beca15aa99ad84ea64ce2d3dc4b8cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a05da061369a9a6fde4f4c84566234e34f9b36e0e71fef70bf205794343b13ce
[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" "a05da061369a9a6fde4f4c84566234e34f9b36e0e71fef70bf205794343b13ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling radium v0.4.1
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking bitvec v0.18.4
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling addchain v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling ff_derive v0.8.0
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking ff v0.8.0
[INFO] [stderr]  Documenting fffft v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 document `fffft`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name fffft src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern err_derive=/opt/rustwide/target/debug/deps/liberr_derive-249404efe6e78496.so --extern ff=/opt/rustwide/target/debug/deps/libff-9c67de20cd5144ae.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-e1ed9c4ac28924f7.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cd1a570d7370ced7.rmeta --cap-lints=warn --crate-version 0.1.2` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "a05da061369a9a6fde4f4c84566234e34f9b36e0e71fef70bf205794343b13ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05da061369a9a6fde4f4c84566234e34f9b36e0e71fef70bf205794343b13ce", kill_on_drop: false }`
[INFO] [stdout] a05da061369a9a6fde4f4c84566234e34f9b36e0e71fef70bf205794343b13ce
