[INFO] fetching crate fabruic 0.0.1-dev.5...
[INFO] documenting fabruic-0.0.1-dev.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate fabruic 0.0.1-dev.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fabruic 0.0.1-dev.5 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 fabruic 0.0.1-dev.5
[INFO] finished tweaking crates.io crate fabruic 0.0.1-dev.5
[INFO] tweaked toml for crates.io crate fabruic 0.0.1-dev.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate fabruic 0.0.1-dev.5 already has a lockfile, it will not be regenerated
[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 zeroize_derive v1.2.2
[INFO] [stderr]   Downloaded quinn v0.8.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.21.0-alpha.4
[INFO] [stderr]   Downloaded trust-dns-proto v0.21.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c54dfad0a0c4aa726b99a3f0991d9b79ab839431d756f87668f2cd3385cb37c
[INFO] running `Command { std: "docker" "start" "-a" "9c54dfad0a0c4aa726b99a3f0991d9b79ab839431d756f87668f2cd3385cb37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c54dfad0a0c4aa726b99a3f0991d9b79ab839431d756f87668f2cd3385cb37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c54dfad0a0c4aa726b99a3f0991d9b79ab839431d756f87668f2cd3385cb37c", kill_on_drop: false }`
[INFO] [stdout] 9c54dfad0a0c4aa726b99a3f0991d9b79ab839431d756f87668f2cd3385cb37c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2936d28fdf4e9ab4f8ef96e6fd95304c4dca8ae9ba9820a03a6db67c67917700
[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" "2936d28fdf4e9ab4f8ef96e6fd95304c4dca8ae9ba9820a03a6db67c67917700", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling oid-registry v0.2.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking if_chain v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking rustls-native-certs v0.6.1
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking nanorand v0.6.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking yasna v0.4.0
[INFO] [stderr]     Checking rusticata-macros v4.0.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rcgen v0.8.14
[INFO] [stderr]     Checking ct-logs v0.9.0
[INFO] [stderr]     Checking rustls v0.20.2
[INFO] [stderr]     Checking webpki-roots v0.22.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling der-oid-macro v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking der-parser v6.0.0
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking flume v0.10.9
[INFO] [stderr]     Checking x509-parser v0.12.0
[INFO] [stderr]     Checking quinn-proto v0.8.0
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking quinn-udp v0.1.0
[INFO] [stderr]     Checking quinn v0.8.0
[INFO] [stderr]     Checking serde v1.0.132
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting fabruic v0.0.1-dev.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:53:2
[INFO] [stdout]    |
[INFO] [stdout] 53 |     feature(doc_cfg),
[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 `fabruic`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name fabruic src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="rcgen"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3788e7e5574d88e9 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-02645b0d3aa9108c.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-bd4b85b11108e1a3.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-57de1f6d7c9c6f6c.rmeta --extern ct_logs=/opt/rustwide/target/debug/deps/libct_logs-4db74a5db3044fd5.rmeta --extern flume=/opt/rustwide/target/debug/deps/libflume-57839c4dc6c20e05.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-ec57869eaff79d76.rmeta --extern futures_executor=/opt/rustwide/target/debug/deps/libfutures_executor-bad12fb0e403033e.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-5a6e7baf90256cb7.rmeta --extern if_chain=/opt/rustwide/target/debug/deps/libif_chain-0ecffd2cac26375a.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-26e9472035688aaa.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-3701dd4bd2b4753b.rmeta --extern quinn=/opt/rustwide/target/debug/deps/libquinn-a16e48f5997c7484.rmeta --extern rcgen=/opt/rustwide/target/debug/deps/librcgen-3009941b17bb60c3.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7c0527cf77078c20.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-7a879fcac13d9b54.rmeta --extern rustls_native_certs=/opt/rustwide/target/debug/deps/librustls_native_certs-9bad0ee1072b8b5b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-dc558488c21bf623.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-ca577f722ccf9c2e.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-ffb2bf03fb2fec7b.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-23c5f0dd26fee521.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-a35cfd85ea65b537.rmeta --extern webpki=/opt/rustwide/target/debug/deps/libwebpki-0a97eb6896d23b6b.rmeta --extern webpki_roots=/opt/rustwide/target/debug/deps/libwebpki_roots-0257582617c9aa07.rmeta --extern x509_parser=/opt/rustwide/target/debug/deps/libx509_parser-221e49324dc360e0.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-a763704b0c686df1.rmeta --cap-lints=warn --crate-version 0.0.1-dev.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2936d28fdf4e9ab4f8ef96e6fd95304c4dca8ae9ba9820a03a6db67c67917700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2936d28fdf4e9ab4f8ef96e6fd95304c4dca8ae9ba9820a03a6db67c67917700", kill_on_drop: false }`
[INFO] [stdout] 2936d28fdf4e9ab4f8ef96e6fd95304c4dca8ae9ba9820a03a6db67c67917700