[INFO] cloning repository https://github.com/hydro-project/hydroflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hydro-project/hydroflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhydro-project%2Fhydroflow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhydro-project%2Fhydroflow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6a942f6a282fc142080e234e3eb1c16b3fcc34d
[INFO] documenting hydro-project/hydroflow 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%2Fhydro-project%2Fhydroflow" "/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/hydro-project/hydroflow 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] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/hydro-project/hydroflow
[INFO] finished tweaking git repo https://github.com/hydro-project/hydroflow
[INFO] tweaked toml for git repo https://github.com/hydro-project/hydroflow written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/hydro-project/hydroflow 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-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8f8a4ae013964397b49a1ff88eee0a463addfe0d60cb6792082bad9a5553c63
[INFO] running `Command { std: "docker" "start" "-a" "f8f8a4ae013964397b49a1ff88eee0a463addfe0d60cb6792082bad9a5553c63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8f8a4ae013964397b49a1ff88eee0a463addfe0d60cb6792082bad9a5553c63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f8a4ae013964397b49a1ff88eee0a463addfe0d60cb6792082bad9a5553c63", kill_on_drop: false }`
[INFO] [stdout] f8f8a4ae013964397b49a1ff88eee0a463addfe0d60cb6792082bad9a5553c63
[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: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] [stdout] ffcae6d15ede1255a47323eb4c15808008bdf47ddb0b132cec064daa7afe4d3e
[INFO] running `Command { std: "docker" "start" "-a" "ffcae6d15ede1255a47323eb4c15808008bdf47ddb0b132cec064daa7afe4d3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_json v1.0.80
[INFO] [stderr]    Compiling ref-cast v1.0.7
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tuple_list v0.1.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling xshell-macros v0.1.17
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking xshell v0.1.17
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling ref-cast-impl v1.0.7
[INFO] [stderr]    Compiling sealed v0.4.0
[INFO] [stderr]     Checking tokio v1.18.1
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking datadriven v0.6.0
[INFO] [stderr]     Checking hydroflow v0.1.0 (/opt/rustwide/workdir/hydroflow)
[INFO] [stderr]  Documenting hydroflow v0.1.0 (/opt/rustwide/workdir/hydroflow)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hydroflow/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hydroflow/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hydroflow/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hydroflow/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hydroflow/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![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]  --> hydroflow/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `hydroflow`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name hydroflow hydroflow/src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="async"' --cfg 'feature="default"' --cfg 'feature="futures"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c3359ec03dfbe861 -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-2d726c06d53b00f3.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-3ff2dcaec82f87b7.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-d92ce7a8a3dabd59.rmeta --extern ref_cast=/opt/rustwide/target/debug/deps/libref_cast-a0f318c3360a7add.rmeta --extern sealed=/opt/rustwide/target/debug/deps/libsealed-bcf52c7424f5e4de.so --extern serde=/opt/rustwide/target/debug/deps/libserde-467ded9eeaf684fd.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f82416b9b24c1a1.rmeta --extern slotmap=/opt/rustwide/target/debug/deps/libslotmap-df1226646c775a6f.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-0676c5c55130f395.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f4a6b50cbdd2d82c.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-82bf0d9e0089c844.rmeta --extern tuple_list=/opt/rustwide/target/debug/deps/libtuple_list-46a52559fa5d07f5.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: 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 compile `hydroflow` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ffcae6d15ede1255a47323eb4c15808008bdf47ddb0b132cec064daa7afe4d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcae6d15ede1255a47323eb4c15808008bdf47ddb0b132cec064daa7afe4d3e", kill_on_drop: false }`
[INFO] [stdout] ffcae6d15ede1255a47323eb4c15808008bdf47ddb0b132cec064daa7afe4d3e