[INFO] cloning repository https://github.com/aochagavia/chat-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aochagavia/chat-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Fchat-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Fchat-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 398394cc53e853df67778da926a62959adf2ba59
[INFO] documenting aochagavia/chat-rs against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Fchat-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aochagavia/chat-rs on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aochagavia/chat-rs
[INFO] finished tweaking git repo https://github.com/aochagavia/chat-rs
[INFO] tweaked toml for git repo https://github.com/aochagavia/chat-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/aochagavia/chat-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", 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] c0e214e2d6933aa5b150ccab1d78dfee7b2060c24bb9e36d1a311fffd32ba0fc
[INFO] running `Command { std: "docker" "start" "-a" "c0e214e2d6933aa5b150ccab1d78dfee7b2060c24bb9e36d1a311fffd32ba0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0e214e2d6933aa5b150ccab1d78dfee7b2060c24bb9e36d1a311fffd32ba0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0e214e2d6933aa5b150ccab1d78dfee7b2060c24bb9e36d1a311fffd32ba0fc", kill_on_drop: false }`
[INFO] [stdout] c0e214e2d6933aa5b150ccab1d78dfee7b2060c24bb9e36d1a311fffd32ba0fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-05-20" "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] 6c6df49ee63b1a74c6324798b198caab1e9ed14f43a8d31c6ca617d453838957
[INFO] running `Command { std: "docker" "start" "-a" "6c6df49ee63b1a74c6324798b198caab1e9ed14f43a8d31c6ca617d453838957", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking bytes v0.4.4
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]     Checking tokio-io v0.1.2
[INFO] [stderr]     Checking tokio-core v0.1.8
[INFO] [stderr]     Checking protocol v0.1.0 (/opt/rustwide/workdir/protocol)
[INFO] [stderr]  Documenting protocol v0.1.0 (/opt/rustwide/workdir/protocol)
[INFO] [stderr]  Documenting client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stderr]  Documenting server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> client/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(conservative_impl_trait, never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[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 `client`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name client client/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=a26b5c79121ec6c2 -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-eb57df1c3f54c21d.rmeta --extern protocol=/opt/rustwide/target/debug/deps/libprotocol-d8f401d86f08eb08.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-0a34bc8b951532d1.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-2b21bd755c6d8d56.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> server/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `server`
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name server server/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d531577a4131be7f -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-eb57df1c3f54c21d.rmeta --extern protocol=/opt/rustwide/target/debug/deps/libprotocol-d8f401d86f08eb08.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-0a34bc8b951532d1.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-2b21bd755c6d8d56.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6c6df49ee63b1a74c6324798b198caab1e9ed14f43a8d31c6ca617d453838957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6df49ee63b1a74c6324798b198caab1e9ed14f43a8d31c6ca617d453838957", kill_on_drop: false }`
[INFO] [stdout] 6c6df49ee63b1a74c6324798b198caab1e9ed14f43a8d31c6ca617d453838957