[INFO] fetching crate concrete 0.2.1...
[INFO] documenting concrete-0.2.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate concrete 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate concrete 0.2.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concrete 0.2.1
[INFO] finished tweaking crates.io crate concrete 0.2.1
[INFO] tweaked toml for crates.io crate concrete 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aes-soft v0.6.4
[INFO] [stderr]   Downloaded reborrow v0.5.4
[INFO] [stderr]   Downloaded concrete-integer v0.1.1
[INFO] [stderr]   Downloaded concrete-boolean v0.2.1
[INFO] [stderr]   Downloaded dyn-stack v0.8.3
[INFO] [stderr]   Downloaded concrete-utils v0.2.0
[INFO] [stderr]   Downloaded concrete-csprng v0.2.2
[INFO] [stderr]   Downloaded concrete-shortint v0.1.1
[INFO] [stderr]   Downloaded concrete-fft v0.1.0
[INFO] [stderr]   Downloaded concrete-core v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00606961b24060501b86daf0fe9db532a6e9017d169a09d024b756ff084724a6
[INFO] running `Command { std: "docker" "start" "-a" "00606961b24060501b86daf0fe9db532a6e9017d169a09d024b756ff084724a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00606961b24060501b86daf0fe9db532a6e9017d169a09d024b756ff084724a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00606961b24060501b86daf0fe9db532a6e9017d169a09d024b756ff084724a6", kill_on_drop: false }`
[INFO] [stdout] 00606961b24060501b86daf0fe9db532a6e9017d169a09d024b756ff084724a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59db2efc49ac917de40365fed12ab2ebbc88fed83287bc7df3b812e8acaecaa2
[INFO] running `Command { std: "docker" "start" "-a" "59db2efc49ac917de40365fed12ab2ebbc88fed83287bc7df3b812e8acaecaa2", kill_on_drop: false }`
[INFO] [stderr]  Documenting concrete v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(doc, feature(doc_auto_cfg))]
[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:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^
[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 `concrete`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name concrete src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=82bba47c2a4cf68b -L dependency=/opt/rustwide/target/debug/deps --extern paste=/opt/rustwide/target/debug/deps/libpaste-b379911497bfa74c.so --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "59db2efc49ac917de40365fed12ab2ebbc88fed83287bc7df3b812e8acaecaa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59db2efc49ac917de40365fed12ab2ebbc88fed83287bc7df3b812e8acaecaa2", kill_on_drop: false }`
[INFO] [stdout] 59db2efc49ac917de40365fed12ab2ebbc88fed83287bc7df3b812e8acaecaa2
