[INFO] fetching crate embedded-tls 0.6.0...
[INFO] documenting embedded-tls-0.6.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate embedded-tls 0.6.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate embedded-tls 0.6.0 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] removed /workspace/builds/worker-57/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate embedded-tls 0.6.0
[INFO] finished tweaking crates.io crate embedded-tls 0.6.0
[INFO] tweaked toml for crates.io crate embedded-tls 0.6.0 written to /workspace/builds/worker-57/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 untrusted v0.7.1
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded tokio-macros v1.7.0
[INFO] [stderr]   Downloaded sha2 v0.9.9
[INFO] [stderr]   Downloaded parking_lot v0.12.0
[INFO] [stderr]   Downloaded ntapi v0.3.7
[INFO] [stderr]   Downloaded polyval v0.4.5
[INFO] [stderr]   Downloaded ghash v0.3.1
[INFO] [stderr]   Downloaded aes-gcm v0.8.0
[INFO] [stderr]   Downloaded aead v0.3.2
[INFO] [stderr]   Downloaded hkdf v0.10.0
[INFO] [stderr]   Downloaded cipher v0.2.5
[INFO] [stderr]   Downloaded sct v0.6.1
[INFO] [stderr]   Downloaded p256 v0.10.1
[INFO] [stderr]   Downloaded ctr v0.6.0
[INFO] [stderr]   Downloaded aesni v0.10.0
[INFO] [stderr]   Downloaded pem-parser v0.1.1
[INFO] [stderr]   Downloaded elliptic-curve v0.11.12
[INFO] [stderr]   Downloaded sec1 v0.2.1
[INFO] [stderr]   Downloaded rustls v0.19.1
[INFO] [stderr]   Downloaded rustls-pemfile v0.2.1
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded webpki v0.21.4
[INFO] [stderr]   Downloaded cpuid-bool v0.2.0
[INFO] [stderr]   Downloaded universal-hash v0.4.1
[INFO] [stderr]   Downloaded hmac v0.10.1
[INFO] [stderr]   Downloaded crypto-mac v0.10.1
[INFO] [stderr]   Downloaded mio v0.7.14
[INFO] [stderr]   Downloaded base16ct v0.1.1
[INFO] [stderr]   Downloaded ff v0.11.1
[INFO] [stderr]   Downloaded group v0.11.0
[INFO] [stderr]   Downloaded digest v0.9.0
[INFO] [stderr]   Downloaded aes-soft v0.6.4
[INFO] [stderr]   Downloaded aes v0.6.0
[INFO] [stderr]   Downloaded crypto-bigint v0.3.2
[INFO] [stderr]   Downloaded const-oid v0.7.1
[INFO] [stderr]   Downloaded der v0.5.1
[INFO] [stderr]   Downloaded subtle v2.4.1
[INFO] [stderr]   Downloaded zeroize v1.5.5
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded block-buffer v0.9.0
[INFO] [stderr]   Downloaded opaque-debug v0.3.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.3
[INFO] [stderr]   Downloaded ring v0.16.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 4cd7017722f5c04821c08391020935f25405e6219aac699a448c8050c497198e
[INFO] running `Command { std: "docker" "start" "-a" "4cd7017722f5c04821c08391020935f25405e6219aac699a448c8050c497198e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cd7017722f5c04821c08391020935f25405e6219aac699a448c8050c497198e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd7017722f5c04821c08391020935f25405e6219aac699a448c8050c497198e", kill_on_drop: false }`
[INFO] [stdout] 4cd7017722f5c04821c08391020935f25405e6219aac699a448c8050c497198e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 6a23ffae3db792ad99cf0994c5b9c08d0f84c220b4c832102043c511e51306ba
[INFO] running `Command { std: "docker" "start" "-a" "6a23ffae3db792ad99cf0994c5b9c08d0f84c220b4c832102043c511e51306ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling defmt-macros v0.3.2
[INFO] [stderr]    Compiling defmt v0.3.1
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking der v0.5.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.3
[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]     Checking mio v0.8.3
[INFO] [stderr]     Checking ff v0.11.1
[INFO] [stderr]     Checking group v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling heapless v0.7.13
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking crypto-mac v0.10.1
[INFO] [stderr]     Checking crypto-bigint v0.3.2
[INFO] [stderr]     Checking sec1 v0.2.1
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking elliptic-curve v0.11.12
[INFO] [stderr]     Checking p256 v0.10.1
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]  Documenting embedded-tls v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `embedded-tls`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name embedded_tls src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="async"' --cfg 'feature="default"' --cfg 'feature="log"' --cfg 'feature="std"' --cfg 'feature="tokio"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7be1cfa0b6ef569f -L dependency=/opt/rustwide/target/debug/deps --extern aes_gcm=/opt/rustwide/target/debug/deps/libaes_gcm-ea590a1c7301507c.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-18eb6b96f77eaf21.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-424251e817f5ded2.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-3388c8727f47c2b9.rmeta --extern hkdf=/opt/rustwide/target/debug/deps/libhkdf-8df743ea2e6f87b4.rmeta --extern hmac=/opt/rustwide/target/debug/deps/libhmac-9054f871fbe99ec0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4c2b941844e2fcbb.rmeta --extern p256=/opt/rustwide/target/debug/deps/libp256-c30965038d601187.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-addc3d3167a64c80.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-1d5971ec3adb7d32.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-88a1aab153499108.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-d5d797e647ec61d1.rmeta --cap-lints=warn --crate-version 0.6.0` (exit status: 1)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "async", feature(generic_associated_types))]
[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:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "async", feature(type_alias_impl_trait))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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" "6a23ffae3db792ad99cf0994c5b9c08d0f84c220b4c832102043c511e51306ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a23ffae3db792ad99cf0994c5b9c08d0f84c220b4c832102043c511e51306ba", kill_on_drop: false }`
[INFO] [stdout] 6a23ffae3db792ad99cf0994c5b9c08d0f84c220b4c832102043c511e51306ba