[INFO] fetching crate paillier 0.2.0...
[INFO] documenting paillier-0.2.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate paillier 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate paillier 0.2.0 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 paillier 0.2.0
[INFO] finished tweaking crates.io crate paillier 0.2.0
[INFO] tweaked toml for crates.io crate paillier 0.2.0 written to /workspace/builds/worker-1/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] 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 rust-gmp v0.5.0
[INFO] [stderr]   Downloaded framp v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ba4c8d35030ddcb5d516e26d395d5572467c2c63e600ee69f2d287296fc6220b
[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" "ba4c8d35030ddcb5d516e26d395d5572467c2c63e600ee69f2d287296fc6220b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba4c8d35030ddcb5d516e26d395d5572467c2c63e600ee69f2d287296fc6220b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba4c8d35030ddcb5d516e26d395d5572467c2c63e600ee69f2d287296fc6220b", kill_on_drop: false }`
[INFO] [stdout] ba4c8d35030ddcb5d516e26d395d5572467c2c63e600ee69f2d287296fc6220b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 556d23eb7dae511417f73b04b382db8fa560ef9ce289eaddbe7c96e18db59784
[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" "556d23eb7dae511417f73b04b382db8fa560ef9ce289eaddbe7c96e18db59784", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking rust-gmp v0.5.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]  Documenting paillier v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `paillier`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name paillier src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="keygen"' --cfg 'feature="proofs"' --cfg 'feature="ring"' --cfg 'feature="rust-gmp"' --cfg 'feature="usegmp"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bit_vec=/opt/rustwide/target/debug/deps/libbit_vec-5725140601a058cc.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-996ecac5420b3288.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c76a88e4c7aa4788.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cd1a570d7370ced7.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-fb709669f7fce07e.rmeta --extern gmp=/opt/rustwide/target/debug/deps/libgmp-f35de62151630dec.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-206cfb4b5fe90396.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e3451a74a47779dd.so --cap-lints=warn --crate-version 0.2.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "556d23eb7dae511417f73b04b382db8fa560ef9ce289eaddbe7c96e18db59784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556d23eb7dae511417f73b04b382db8fa560ef9ce289eaddbe7c96e18db59784", kill_on_drop: false }`
[INFO] [stdout] 556d23eb7dae511417f73b04b382db8fa560ef9ce289eaddbe7c96e18db59784
