[INFO] cloning repository https://github.com/stoksc/actix-bb8-service
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stoksc/actix-bb8-service" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstoksc%2Factix-bb8-service", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstoksc%2Factix-bb8-service'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0df30437d8723a87df1750c816da3b75f66e10f6
[INFO] documenting stoksc/actix-bb8-service against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstoksc%2Factix-bb8-service" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stoksc/actix-bb8-service 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] started tweaking git repo https://github.com/stoksc/actix-bb8-service
[INFO] finished tweaking git repo https://github.com/stoksc/actix-bb8-service
[INFO] tweaked toml for git repo https://github.com/stoksc/actix-bb8-service written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/stoksc/actix-bb8-service already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ce66fe8e2a9e1bffa07e375994f80ed4bc61191033b83622e11870296d6e721a
[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" "ce66fe8e2a9e1bffa07e375994f80ed4bc61191033b83622e11870296d6e721a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce66fe8e2a9e1bffa07e375994f80ed4bc61191033b83622e11870296d6e721a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce66fe8e2a9e1bffa07e375994f80ed4bc61191033b83622e11870296d6e721a", kill_on_drop: false }`
[INFO] [stdout] ce66fe8e2a9e1bffa07e375994f80ed4bc61191033b83622e11870296d6e721a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7581e5b25efe769b4046b5b8d2c73b8138f1b3e63d5122f4056efd5ddf3953e0
[INFO] running `Command { std: "docker" "start" "-a" "7581e5b25efe769b4046b5b8d2c73b8138f1b3e63d5122f4056efd5ddf3953e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking tokio-executor v0.1.9
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.20
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling actix_derive v0.4.0
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking tokio-timer v0.2.12
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking postgres-protocol v0.5.0-alpha.1
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking actix-codec v0.1.2
[INFO] [stderr]     Checking postgres-types v0.1.0-alpha.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking actix-utils v0.4.7
[INFO] [stderr]     Checking actix-server-config v0.1.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking actix-threadpool v0.1.2
[INFO] [stderr]     Checking actix-rt v0.2.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.6
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling async-trait v0.1.19
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling actix-web-codegen v0.2.0-alpha.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking tracing v0.1.10
[INFO] [stderr]     Checking const-random v0.1.6
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.6
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking actix-connect v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking h2 v0.2.0-alpha.3
[INFO] [stderr]     Checking actix-threadpool v0.2.0
[INFO] [stderr]     Checking actix-service v1.0.0-alpha.1
[INFO] [stderr]     Checking actix-codec v0.2.0-alpha.1
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.6
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.6
[INFO] [stderr]     Checking actix-utils v0.5.0-alpha1
[INFO] [stderr]     Checking tokio v0.2.0-alpha.6
[INFO] [stderr]     Checking trust-dns-proto v0.18.0-alpha.1
[INFO] [stderr]     Checking actix-server-config v0.3.0-alpha.1
[INFO] [stderr]     Checking actix-rt v1.0.0-alpha.1
[INFO] [stderr]     Checking tokio-postgres v0.5.0-alpha.1
[INFO] [stderr]     Checking actix-server v0.8.0-alpha.1
[INFO] [stderr]     Checking bb8 v0.4.0-pre (https://github.com/stoksc/bb8?branch=actix-rt#130b76c6)
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking actix-router v0.1.5
[INFO] [stderr]     Checking actix-testing v0.3.0-alpha.1
[INFO] [stderr]     Checking actix-http v0.2.11
[INFO] [stderr]     Checking bb8-postgres v0.4.0-pre (https://github.com/stoksc/bb8?branch=actix-rt#130b76c6)
[INFO] [stderr]     Checking trust-dns-resolver v0.18.0-alpha.1
[INFO] [stderr]     Checking actix-connect v1.0.0-alpha.1
[INFO] [stderr]     Checking actix-http v0.3.0-alpha.1
[INFO] [stderr]     Checking actix v0.8.3
[INFO] [stderr]     Checking awc v0.3.0-alpha.1
[INFO] [stderr]     Checking actix-web v2.0.0-alpha.1
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]  Documenting actix-bb8-try v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]   --> src/main.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 | ) -> Result<HttpResponse, !> {
[INFO] [stdout]    |                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[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] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `actix-bb8-try`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name actix_bb8_try src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-80f07871ab226950.rmeta --extern actix_rt=/opt/rustwide/target/debug/deps/libactix_rt-84e815dfb828f122.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-66d21023af603a08.rmeta --extern bb8=/opt/rustwide/target/debug/deps/libbb8-f8cef8dd5cd05ec8.rmeta --extern bb8_postgres=/opt/rustwide/target/debug/deps/libbb8_postgres-5ef6c4fbc4bbb0d8.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-ea964f0e3a2e6e0e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-ec59ff00892aaa57.rmeta --extern jemallocator=/opt/rustwide/target/debug/deps/libjemallocator-8809fb94e61e6277.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b2e75e57b4d042f6.rmeta --extern tokio_executor=/opt/rustwide/target/debug/deps/libtokio_executor-cd16d0a5f51663bd.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "7581e5b25efe769b4046b5b8d2c73b8138f1b3e63d5122f4056efd5ddf3953e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7581e5b25efe769b4046b5b8d2c73b8138f1b3e63d5122f4056efd5ddf3953e0", kill_on_drop: false }`
[INFO] [stdout] 7581e5b25efe769b4046b5b8d2c73b8138f1b3e63d5122f4056efd5ddf3953e0
