[INFO] fetching crate libside 0.1.17...
[INFO] documenting libside-0.1.17 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate libside 0.1.17 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate libside 0.1.17 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 libside 0.1.17
[INFO] finished tweaking crates.io crate libside 0.1.17
[INFO] tweaked toml for crates.io crate libside 0.1.17 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate libside 0.1.17 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded serde v1.0.136
[INFO] [stderr]   Downloaded serde_derive v1.0.136
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded toml v0.5.8
[INFO] [stderr]   Downloaded syn v1.0.86
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.8.0
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded block-buffer v0.10.0
[INFO] [stderr]   Downloaded crypto-common v0.1.1
[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.16
[INFO] [stderr]   Downloaded itertools v0.10.3
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded rand_chacha v0.1.1
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded rand_hc v0.1.0
[INFO] [stderr]   Downloaded rand_isaac v0.1.1
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded etc-passwd v0.1.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.30
[INFO] [stderr]   Downloaded itoa v1.0.1
[INFO] [stderr]   Downloaded rand_chacha v0.3.1
[INFO] [stderr]   Downloaded ryu v1.0.9
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded rand v0.8.4
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded once_cell v1.9.0
[INFO] [stderr]   Downloaded quote v1.0.15
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded libc v0.2.114
[INFO] [stderr]   Downloaded rand_core v0.6.3
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded serde_json v1.0.78
[INFO] [stderr]   Downloaded sha3 v0.10.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded proc-macro2 v1.0.36
[INFO] [stderr]   Downloaded thiserror v1.0.30
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded rand_pcg v0.1.2
[INFO] [stderr]   Downloaded gensym v0.1.0
[INFO] [stderr]   Downloaded libside-procmacro v0.1.0
[INFO] [stderr]   Downloaded rand_jitter v0.1.4
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded rand_os v0.1.3
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded rand_xorshift v0.1.1
[INFO] [stderr]   Downloaded rand v0.6.5
[INFO] [stderr]   Downloaded uuid v0.7.4
[INFO] [stderr]   Downloaded cc v1.0.72
[INFO] [stderr]   Downloaded pkg-config v0.3.24
[INFO] [stderr]   Downloaded vcpkg v0.2.15
[INFO] [stderr]   Downloaded openssl-sys v0.9.72
[INFO] [stderr]   Downloaded openssl v0.10.38
[INFO] [stderr]   Downloaded paste v1.0.6
[INFO] [stderr]   Downloaded getrandom v0.2.4
[INFO] [stderr]   Downloaded rand_hc v0.3.1
[INFO] [stderr]   Downloaded digest v0.10.1
[INFO] [stderr]   Downloaded keccak v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/ram-disk/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/ram-disk/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/ram-disk/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/ram-disk/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] 65766ee7071c208a4cb5c54b45cad3f6358df8053fb954eaa78faa3a91ff67b2
[INFO] running `Command { std: "docker" "start" "-a" "65766ee7071c208a4cb5c54b45cad3f6358df8053fb954eaa78faa3a91ff67b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65766ee7071c208a4cb5c54b45cad3f6358df8053fb954eaa78faa3a91ff67b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65766ee7071c208a4cb5c54b45cad3f6358df8053fb954eaa78faa3a91ff67b2", kill_on_drop: false }`
[INFO] [stdout] 65766ee7071c208a4cb5c54b45cad3f6358df8053fb954eaa78faa3a91ff67b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/ram-disk/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/ram-disk/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/ram-disk/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/ram-disk/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] 337c052dcb40b2ad23182333336da8daab1d4c98a8e9ac2797675108bdfed5b3
[INFO] running `Command { std: "docker" "start" "-a" "337c052dcb40b2ad23182333336da8daab1d4c98a8e9ac2797675108bdfed5b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.114
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking etc-passwd v0.1.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking sha3 v0.10.0
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling gensym v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling libside-procmacro v0.1.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]  Documenting libside v0.1.17 (/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(generic_associated_types, negative_impls, auto_traits)]
[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 `libside`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name libside src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cadbc1e0bb93d3c8 -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-8bcb81a96746c276.rmeta --extern etc_passwd=/opt/rustwide/target/debug/deps/libetc_passwd-82ebdae3b790f4b2.rmeta --extern gensym=/opt/rustwide/target/debug/deps/libgensym-e74ad2565cf6c931.so --extern itertools=/opt/rustwide/target/debug/deps/libitertools-c3e915a3b5e36158.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern libside_procmacro=/opt/rustwide/target/debug/deps/liblibside_procmacro-22912cae4bdf72db.so --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-2e41ce0bb257d137.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-9c2c52a65a0ba416.so --extern rand=/opt/rustwide/target/debug/deps/librand-341fea2d2d1d1839.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-286db2550b948a2e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9157fd09bd520405.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-c45058d2e304459d.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-19b33b46fb780a19.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-6c68f7b3619c2bcc.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-5cb7da4eb50b62e7.rmeta --extern typemap=/opt/rustwide/target/debug/deps/libtypemap-e2ae44097755af18.rmeta --cap-lints=warn --crate-version 0.1.17` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "337c052dcb40b2ad23182333336da8daab1d4c98a8e9ac2797675108bdfed5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337c052dcb40b2ad23182333336da8daab1d4c98a8e9ac2797675108bdfed5b3", kill_on_drop: false }`
[INFO] [stdout] 337c052dcb40b2ad23182333336da8daab1d4c98a8e9ac2797675108bdfed5b3