[INFO] cloning repository https://github.com/vgarleanu/quicksocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vgarleanu/quicksocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgarleanu%2Fquicksocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgarleanu%2Fquicksocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b0995c6d54b99a16dc51acb99dc3672c1014008
[INFO] documenting vgarleanu/quicksocks 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%2Fvgarleanu%2Fquicksocks" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vgarleanu/quicksocks 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/vgarleanu/quicksocks
[INFO] finished tweaking git repo https://github.com/vgarleanu/quicksocks
[INFO] tweaked toml for git repo https://github.com/vgarleanu/quicksocks written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/vgarleanu/quicksocks 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] [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 tokio-rustls v0.12.2
[INFO] [stderr]   Downloaded tokio-macros v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 4f928c5a0dad44e9b6c6a829086568f40e4737379da94588f966492a8bc84d12
[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" "4f928c5a0dad44e9b6c6a829086568f40e4737379da94588f966492a8bc84d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f928c5a0dad44e9b6c6a829086568f40e4737379da94588f966492a8bc84d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f928c5a0dad44e9b6c6a829086568f40e4737379da94588f966492a8bc84d12", kill_on_drop: false }`
[INFO] [stdout] 4f928c5a0dad44e9b6c6a829086568f40e4737379da94588f966492a8bc84d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2ce24b081971a375328e812f8f7e649aced0e27a4453afd2fea2fc5e5daa5442
[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" "2ce24b081971a375328e812f8f7e649aced0e27a4453afd2fea2fc5e5daa5442", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]     Checking tokio v0.2.10
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.12.2
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]  Documenting quicksockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | #![feature(type_ascription)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `quicksockets`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name quicksockets src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-d36e702769f62673.so --extern base64=/opt/rustwide/target/debug/deps/libbase64-4a89151e30420df8.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-3dea7b43aa26a863.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-991d12bab4fcd132.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-0707715bea786870.rmeta --extern httparse=/opt/rustwide/target/debug/deps/libhttparse-fa8851e3beed50ed.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-6dec89d0a87330c2.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-2d086ffce35acaea.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-0032385fc9c9ceec.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-8b9893e256b99ccf.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-ebfb505e8cd6b342.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-1b329c5e88046e0a.rmeta --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-f2ae0db0e8a00b82.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-c90e80cde035c1e3.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2ce24b081971a375328e812f8f7e649aced0e27a4453afd2fea2fc5e5daa5442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce24b081971a375328e812f8f7e649aced0e27a4453afd2fea2fc5e5daa5442", kill_on_drop: false }`
[INFO] [stdout] 2ce24b081971a375328e812f8f7e649aced0e27a4453afd2fea2fc5e5daa5442
