[INFO] fetching crate drogue-tls 0.2.0...
[INFO] documenting drogue-tls-0.2.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate drogue-tls 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate drogue-tls 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate drogue-tls 0.2.0
[INFO] finished tweaking crates.io crate drogue-tls 0.2.0
[INFO] tweaked toml for crates.io crate drogue-tls 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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" "+beta-2021-08-01" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4826f46df8a49bd8d62c070f7c4abb6abc557149e964a6db5378392765032f8a
[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" "4826f46df8a49bd8d62c070f7c4abb6abc557149e964a6db5378392765032f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4826f46df8a49bd8d62c070f7c4abb6abc557149e964a6db5378392765032f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4826f46df8a49bd8d62c070f7c4abb6abc557149e964a6db5378392765032f8a", kill_on_drop: false }`
[INFO] [stdout] 4826f46df8a49bd8d62c070f7c4abb6abc557149e964a6db5378392765032f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d69d7ed0715f4981f280b696cb788f90afa4aaafa367051b4e5bc391b7109f5b
[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" "d69d7ed0715f4981f280b696cb788f90afa4aaafa367051b4e5bc391b7109f5b", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling heapless v0.6.1
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking crypto-mac v0.10.1
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking ff v0.9.0
[INFO] [stderr]     Checking group v0.9.0
[INFO] [stderr]     Checking elliptic-curve v0.9.12
[INFO] [stderr]     Checking p256 v0.8.1
[INFO] [stderr]  Documenting drogue-tls v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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 beta release channel
[INFO] [stdout]  --> src/lib.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "async", feature(min_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] [stderr] error: could not document `drogue-tls`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name drogue_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 --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern aes_gcm=/opt/rustwide/target/debug/deps/libaes_gcm-4a742684f5a8ed60.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-e4752f3ee7e4c2db.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-e6b019cdb61312b0.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-72305751f3be0793.rmeta --extern hkdf=/opt/rustwide/target/debug/deps/libhkdf-7d2f064c72a05792.rmeta --extern hmac=/opt/rustwide/target/debug/deps/libhmac-ee54948ade04507d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-56a705720bafac8d.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-3fd1d1d307dd9c01.rmeta --extern p256=/opt/rustwide/target/debug/deps/libp256-d3d833dd8b97b809.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-34e9de95e96ef730.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-85d6898f84445706.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-302837af451a0bc1.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-12ddda03e0414e14.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d69d7ed0715f4981f280b696cb788f90afa4aaafa367051b4e5bc391b7109f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69d7ed0715f4981f280b696cb788f90afa4aaafa367051b4e5bc391b7109f5b", kill_on_drop: false }`
[INFO] [stdout] d69d7ed0715f4981f280b696cb788f90afa4aaafa367051b4e5bc391b7109f5b
