[INFO] fetching crate drogue-tls 0.2.0...
[INFO] documenting drogue-tls-0.2.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate drogue-tls 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate drogue-tls 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt-parser v0.2.2
[INFO] [stderr]   Downloaded defmt-macros v0.2.3
[INFO] [stderr]   Downloaded group v0.9.0
[INFO] [stderr]   Downloaded defmt v0.2.3
[INFO] [stderr]   Downloaded heapless v0.6.1
[INFO] [stderr]   Downloaded ff v0.9.0
[INFO] [stderr]   Downloaded rustls-pemfile v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e5984f649d8619dcbeb1a7a4c62583eb148b1de7aed6cc41b81e315eef33508
[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" "3e5984f649d8619dcbeb1a7a4c62583eb148b1de7aed6cc41b81e315eef33508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e5984f649d8619dcbeb1a7a4c62583eb148b1de7aed6cc41b81e315eef33508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e5984f649d8619dcbeb1a7a4c62583eb148b1de7aed6cc41b81e315eef33508", kill_on_drop: false }`
[INFO] [stdout] 3e5984f649d8619dcbeb1a7a4c62583eb148b1de7aed6cc41b81e315eef33508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a46d23c972c08ca9a8f96878ea9b2253921dfc705c532fdf7729af8ad7227e5e
[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" "a46d23c972c08ca9a8f96878ea9b2253921dfc705c532fdf7729af8ad7227e5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling heapless v0.6.1
[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 cipher v0.2.5
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking crypto-mac v0.10.1
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking hmac v0.10.1
[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 hash32 v0.1.1
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking aes-gcm v0.8.0
[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 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(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-be79ace36ef4545c.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-221c11a0636f42ae.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-0f2ff2e379a5743d.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-f4beeee21bb282d6.rmeta --extern hkdf=/opt/rustwide/target/debug/deps/libhkdf-454291ab7e65ad45.rmeta --extern hmac=/opt/rustwide/target/debug/deps/libhmac-0c5bb945b75535e6.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-dbf3cbdc9ce07144.rmeta --extern p256=/opt/rustwide/target/debug/deps/libp256-d636487393018de7.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-470277536ca74700.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-72ced47ccec608d9.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-69fc186269981c94.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-8fa0e6bbb9428c5d.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a46d23c972c08ca9a8f96878ea9b2253921dfc705c532fdf7729af8ad7227e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46d23c972c08ca9a8f96878ea9b2253921dfc705c532fdf7729af8ad7227e5e", kill_on_drop: false }`
[INFO] [stdout] a46d23c972c08ca9a8f96878ea9b2253921dfc705c532fdf7729af8ad7227e5e
