[INFO] fetching crate paillier 0.2.0...
[INFO] documenting paillier-0.2.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate paillier 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate paillier 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0527e72e6a7061bafbb5e6daac7488f79ff9101287a73ef390ea2d6f48dc2090
[INFO] running `Command { std: "docker" "start" "-a" "0527e72e6a7061bafbb5e6daac7488f79ff9101287a73ef390ea2d6f48dc2090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0527e72e6a7061bafbb5e6daac7488f79ff9101287a73ef390ea2d6f48dc2090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0527e72e6a7061bafbb5e6daac7488f79ff9101287a73ef390ea2d6f48dc2090", kill_on_drop: false }`
[INFO] [stdout] 0527e72e6a7061bafbb5e6daac7488f79ff9101287a73ef390ea2d6f48dc2090
[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" "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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15a7f12efe27705be796d3aa9b91680ba9ffa02cc94331aea50a2057c13c0005
[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" "15a7f12efe27705be796d3aa9b91680ba9ffa02cc94331aea50a2057c13c0005", kill_on_drop: false }`
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking rust-gmp v0.5.0
[INFO] [stderr]  Documenting paillier v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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 stable 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-b2e110f3a0e4d4e6.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-23d0e8019ec8f115.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-eac865bbb6348113.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-8d823b7f65145b73.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-f09ac50769a7d248.rmeta --extern gmp=/opt/rustwide/target/debug/deps/libgmp-f44610338d52a280.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-eb6cdf579abc545a.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5f078a3096470b53.so --cap-lints=warn --crate-version 0.2.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "15a7f12efe27705be796d3aa9b91680ba9ffa02cc94331aea50a2057c13c0005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a7f12efe27705be796d3aa9b91680ba9ffa02cc94331aea50a2057c13c0005", kill_on_drop: false }`
[INFO] [stdout] 15a7f12efe27705be796d3aa9b91680ba9ffa02cc94331aea50a2057c13c0005
