[INFO] fetching crate rustls-extra 0.15.0...
[INFO] documenting rustls-extra-0.15.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate rustls-extra 0.15.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rustls-extra 0.15.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustls-extra 0.15.0
[INFO] finished tweaking crates.io crate rustls-extra 0.15.0
[INFO] tweaked toml for crates.io crate rustls-extra 0.15.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded likely v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ad7aa3d3fa7c984b2ce4eb915aa7786c8c836a7a6be4d078432c8b8c7ce2387
[INFO] running `Command { std: "docker" "start" "-a" "1ad7aa3d3fa7c984b2ce4eb915aa7786c8c836a7a6be4d078432c8b8c7ce2387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ad7aa3d3fa7c984b2ce4eb915aa7786c8c836a7a6be4d078432c8b8c7ce2387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad7aa3d3fa7c984b2ce4eb915aa7786c8c836a7a6be4d078432c8b8c7ce2387", kill_on_drop: false }`
[INFO] [stdout] 1ad7aa3d3fa7c984b2ce4eb915aa7786c8c836a7a6be4d078432c8b8c7ce2387
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f0546bfe8d84a2151c82be37c822b5afd0208b85bdaa0cc5cc18417c018354b
[INFO] running `Command { std: "docker" "start" "-a" "0f0546bfe8d84a2151c82be37c822b5afd0208b85bdaa0cc5cc18417c018354b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking likely v0.1.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking ct-logs v0.5.1
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]  Documenting rustls-extra v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(core_intrinsics)]
[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 document `rustls-extra`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name rustls_extra src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c1b0027e61132bf5 -L dependency=/opt/rustwide/target/debug/deps --extern ct_logs=/opt/rustwide/target/debug/deps/libct_logs-24e29d86e4afadb2.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-33ef8bea342ba240.rmeta --extern likely=/opt/rustwide/target/debug/deps/liblikely-2487bc56f235c900.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-c51d111e881691ec.rmeta --extern webpki=/opt/rustwide/target/debug/deps/libwebpki-0694731072c19fc8.rmeta --cap-lints=warn --crate-version 0.15.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0f0546bfe8d84a2151c82be37c822b5afd0208b85bdaa0cc5cc18417c018354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f0546bfe8d84a2151c82be37c822b5afd0208b85bdaa0cc5cc18417c018354b", kill_on_drop: false }`
[INFO] [stdout] 0f0546bfe8d84a2151c82be37c822b5afd0208b85bdaa0cc5cc18417c018354b