[INFO] fetching crate embedded-svc 0.21.2...
[INFO] documenting embedded-svc-0.21.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate embedded-svc 0.21.2 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate embedded-svc 0.21.2 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 embedded-svc 0.21.2
[INFO] finished tweaking crates.io crate embedded-svc 0.21.2
[INFO] tweaked toml for crates.io crate embedded-svc 0.21.2 written to /workspace/builds/worker-62/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] [stderr]     Blocking waiting for file lock on package cache
[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 proc-macro-crate v1.1.3
[INFO] [stderr]   Downloaded darling v0.13.4
[INFO] [stderr]   Downloaded darling_macro v0.13.4
[INFO] [stderr]   Downloaded anyhow v1.0.57
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded enumset_derive v0.6.0
[INFO] [stderr]   Downloaded enumset v1.0.11
[INFO] [stderr]   Downloaded darling_core v0.13.4
[INFO] [stderr]   Downloaded strum v0.23.0
[INFO] [stderr]   Downloaded strum_macros v0.23.1
[INFO] [stderr]   Downloaded http-auth-basic v0.1.3
[INFO] [stderr]   Downloaded num_enum v0.5.7
[INFO] [stderr]   Downloaded rustversion v1.0.6
[INFO] [stderr]   Downloaded num_enum_derive v0.5.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] 3a9d63d851323d40729a47b0526d0b8a14a8e771bffd4c1e2041a8f54d1e2d5e
[INFO] running `Command { std: "docker" "start" "-a" "3a9d63d851323d40729a47b0526d0b8a14a8e771bffd4c1e2041a8f54d1e2d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a9d63d851323d40729a47b0526d0b8a14a8e771bffd4c1e2041a8f54d1e2d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a9d63d851323d40729a47b0526d0b8a14a8e771bffd4c1e2041a8f54d1e2d5e", kill_on_drop: false }`
[INFO] [stdout] 3a9d63d851323d40729a47b0526d0b8a14a8e771bffd4c1e2041a8f54d1e2d5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] c7555bfe54af307bcd755768ce96b2aef3584426a472b139d104745d9c4dfd37
[INFO] running `Command { std: "docker" "start" "-a" "c7555bfe54af307bcd755768ce96b2aef3584426a472b139d104745d9c4dfd37", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking http-auth-basic v0.1.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling strum_macros v0.23.1
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]     Checking strum v0.23.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling enumset_derive v0.6.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]     Checking num_enum v0.5.7
[INFO] [stderr]     Checking no-std-net v0.5.0
[INFO] [stderr]     Checking enumset v1.0.11
[INFO] [stderr]  Documenting embedded-svc v0.21.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `embedded-svc`
[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(cfg_version)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_associated_types)] // For mutex, http, http::client, http::server, ota, ghota and all asyncs; soon to be stabilized
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(cfg_target_has_atomic)] // Soon to be stabilized
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name embedded_svc src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="anyhow"' --cfg 'feature="default"' --cfg 'feature="http-auth-basic"' --cfg 'feature="num_enum"' --cfg 'feature="serde_json"' --cfg 'feature="std"' --cfg 'feature="strum"' --cfg 'feature="strum_macros"' --cfg 'feature="use_numenum"' --cfg 'feature="use_serde"' --cfg 'feature="use_strum"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=94e9a82146a1880a -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-d462f27f5f00cc0d.rmeta --extern enumset=/opt/rustwide/target/debug/deps/libenumset-8858b24946bbb7e9.rmeta --extern http_auth_basic=/opt/rustwide/target/debug/deps/libhttp_auth_basic-43edb616a5673d7a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-11fcf639aa746c8b.rmeta --extern no_std_net=/opt/rustwide/target/debug/deps/libno_std_net-96ccc6c7b9e52060.rmeta --extern num_enum=/opt/rustwide/target/debug/deps/libnum_enum-ac55e1252d0b3a0b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e63ef017a3a0495a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-230342bcb8a9391b.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-70ef925c8e3faea5.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-fd2f145100291649.so --cap-lints=warn --crate-version 0.21.2` (exit status: 1)
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c7555bfe54af307bcd755768ce96b2aef3584426a472b139d104745d9c4dfd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7555bfe54af307bcd755768ce96b2aef3584426a472b139d104745d9c4dfd37", kill_on_drop: false }`
[INFO] [stdout] c7555bfe54af307bcd755768ce96b2aef3584426a472b139d104745d9c4dfd37