[INFO] cloning repository https://github.com/CN-Zxcv/learn_tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CN-Zxcv/learn_tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ce311d09667236ed53c4cb0ca32e2e9d9fedd5c
[INFO] documenting CN-Zxcv/learn_tokio against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CN-Zxcv/learn_tokio on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] finished tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] tweaked toml for git repo https://github.com/CN-Zxcv/learn_tokio written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CN-Zxcv/learn_tokio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-bincode v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 112579fdd32d35ba41c765db975b77f36e93078b8de0ebd7a413c71a8058e0e5
[INFO] running `Command { std: "docker" "start" "-a" "112579fdd32d35ba41c765db975b77f36e93078b8de0ebd7a413c71a8058e0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "112579fdd32d35ba41c765db975b77f36e93078b8de0ebd7a413c71a8058e0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112579fdd32d35ba41c765db975b77f36e93078b8de0ebd7a413c71a8058e0e5", kill_on_drop: false }`
[INFO] [stdout] 112579fdd32d35ba41c765db975b77f36e93078b8de0ebd7a413c71a8058e0e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98f1bc6a5dfb68afde4c65b57fb13a52caafec0a8cc3ac0a6e8f96ff8756ee42
[INFO] running `Command { std: "docker" "start" "-a" "98f1bc6a5dfb68afde4c65b57fb13a52caafec0a8cc3ac0a6e8f96ff8756ee42", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
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[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
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[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling syn v1.0.109
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[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling tokio v1.28.1
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[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking vec_map v0.8.2
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[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking half v1.8.2
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[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking clap v2.34.0
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[INFO] [stderr]     Checking chrono v0.4.24
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[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking rayon v1.7.0
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[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tokio-bincode v0.1.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking learn_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting learn_tokio 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn_tokio` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `learn_tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name learn_tokio src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=73f07a69da310657 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-ae976571b1482d26.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-a967cbc582f75f27.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-a147f7542d0a905a.rmeta --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-3186ad84c12a9ec5.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a7993d3b1c68b1fd.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-f0d955de1fb2541c.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-f1c2614c0228f03f.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern mini_redis=/opt/rustwide/target/debug/deps/libmini_redis-013b60679c7af6fd.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-8fe0f29310f39d08.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0ff2f3c766d371ad.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-44074fa7bc708649.rmeta --extern tokio_bincode=/opt/rustwide/target/debug/deps/libtokio_bincode-46dbbc5463901a5e.rmeta --extern tokio_stream=/opt/rustwide/target/debug/deps/libtokio_stream-b821a1c35773f5da.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-bf1466fe7b3b57f8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "98f1bc6a5dfb68afde4c65b57fb13a52caafec0a8cc3ac0a6e8f96ff8756ee42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f1bc6a5dfb68afde4c65b57fb13a52caafec0a8cc3ac0a6e8f96ff8756ee42", kill_on_drop: false }`
[INFO] [stdout] 98f1bc6a5dfb68afde4c65b57fb13a52caafec0a8cc3ac0a6e8f96ff8756ee42
[INFO] documenting CN-Zxcv/learn_tokio against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CN-Zxcv/learn_tokio on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] finished tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] tweaked toml for git repo https://github.com/CN-Zxcv/learn_tokio written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CN-Zxcv/learn_tokio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10717d9133fc11c1f8d6d95f665c604ae8b0df3d399588a5913799c9d730b92c
[INFO] running `Command { std: "docker" "start" "-a" "10717d9133fc11c1f8d6d95f665c604ae8b0df3d399588a5913799c9d730b92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10717d9133fc11c1f8d6d95f665c604ae8b0df3d399588a5913799c9d730b92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10717d9133fc11c1f8d6d95f665c604ae8b0df3d399588a5913799c9d730b92c", kill_on_drop: false }`
[INFO] [stdout] 10717d9133fc11c1f8d6d95f665c604ae8b0df3d399588a5913799c9d730b92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba26e49dda73599dfef589529b5b6563854c672f7700d55c27ac26e697ee8a28
[INFO] running `Command { std: "docker" "start" "-a" "ba26e49dda73599dfef589529b5b6563854c672f7700d55c27ac26e697ee8a28", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking clap_builder v4.3.0
[INFO] [stderr]     Checking ciborium-ll v0.2.1
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[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking itertools v0.10.5
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[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.68
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[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking anes v0.1.6
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[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tokio-bincode v0.1.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking learn_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting learn_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn_tokio` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `learn_tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name learn_tokio src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9c591d6e16b05dbd -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-709c39cab49c4d58.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-b38bea602dc3bf56.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-dd9fa1fea82c9d3d.rmeta --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-730e59230969d573.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-efc1239b3ad6243d.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-de459e642c2c788e.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-4e82c1d2e871ca82.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-cc91e7c9c894213a.rmeta --extern mini_redis=/opt/rustwide/target/debug/deps/libmini_redis-f802c58b99845e9f.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-eaff434003305f3c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-29889f08edc0ed55.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c58929587f502726.rmeta --extern tokio_bincode=/opt/rustwide/target/debug/deps/libtokio_bincode-4d9ef07b1fa0f0f1.rmeta --extern tokio_stream=/opt/rustwide/target/debug/deps/libtokio_stream-27636d5fd7153e94.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-00776a575bb8a0be.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ba26e49dda73599dfef589529b5b6563854c672f7700d55c27ac26e697ee8a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba26e49dda73599dfef589529b5b6563854c672f7700d55c27ac26e697ee8a28", kill_on_drop: false }`
[INFO] [stdout] ba26e49dda73599dfef589529b5b6563854c672f7700d55c27ac26e697ee8a28
