[INFO] cloning repository https://github.com/daogangtang/learn-libp2p
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daogangtang/learn-libp2p" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Flearn-libp2p", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Flearn-libp2p'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5af80970091694cf447984cdcdcedf270a9d0702
[INFO] documenting daogangtang/learn-libp2p against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Flearn-libp2p" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daogangtang/learn-libp2p on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daogangtang/learn-libp2p
[INFO] removed path dependency libp2p from git repo https://github.com/daogangtang/learn-libp2p
[INFO] finished tweaking git repo https://github.com/daogangtang/learn-libp2p
[INFO] tweaked toml for git repo https://github.com/daogangtang/learn-libp2p written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/daogangtang/learn-libp2p already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] a481007b9bb4e57e0b047a19555a3c192fe09b7050c96cac46f48d1d6c14a8fc
[INFO] running `Command { std: "docker" "start" "-a" "a481007b9bb4e57e0b047a19555a3c192fe09b7050c96cac46f48d1d6c14a8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a481007b9bb4e57e0b047a19555a3c192fe09b7050c96cac46f48d1d6c14a8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a481007b9bb4e57e0b047a19555a3c192fe09b7050c96cac46f48d1d6c14a8fc", kill_on_drop: false }`
[INFO] [stdout] a481007b9bb4e57e0b047a19555a3c192fe09b7050c96cac46f48d1d6c14a8fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 296d893f72a0a4d69a608b94206a0b4a05642049c42be79959fb35710d8f45be
[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" "296d893f72a0a4d69a608b94206a0b4a05642049c42be79959fb35710d8f45be", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]     Checking futures-core v0.3.5
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[INFO] [stderr]    Compiling multimap v0.8.2
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[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking c_linked_list v1.1.1
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[INFO] [stderr]     Checking parity-send-wrapper v0.1.0
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking atomic v0.4.6
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]    Compiling libz-sys v1.1.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking quicksink v0.1.2
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[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]    Compiling snow v0.7.1
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking stream-cipher v0.4.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]    Compiling prost-build v0.6.1
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[INFO] [stderr]     Checking sct v0.6.0
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[INFO] [stderr]     Checking sha-1 v0.9.1
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[INFO] [stderr]     Checking salsa20-core v0.2.3
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[INFO] [stderr]     Checking cuckoofilter v0.3.2
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[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]     Checking poly1305 v0.6.0
[INFO] [stderr]     Checking salsa20 v0.3.0
[INFO] [stderr]     Checking aes-ctr v0.3.0
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking multihash v0.11.4
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
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[INFO] [stderr]     Checking aes v0.4.0
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[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking tokio-stdin-stdout v0.1.5
[INFO] [stderr]     Checking aes-gcm v0.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]     Checking lru v0.6.0
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking chacha20 v0.4.3
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking chacha20poly1305 v0.5.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking x25519-dalek v0.6.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.17
[INFO] [stderr]    Compiling libp2p-core v0.21.0
[INFO] [stderr]    Compiling libp2p-identify v0.21.0
[INFO] [stderr]    Compiling libp2p-kad v0.22.1
[INFO] [stderr]    Compiling libp2p-secio v0.21.0
[INFO] [stderr]    Compiling libp2p-floodsub v0.21.0
[INFO] [stderr]    Compiling libp2p-gossipsub v0.21.0
[INFO] [stderr]    Compiling libp2p-plaintext v0.21.0
[INFO] [stderr]    Compiling libp2p-noise v0.23.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking futures_codec v0.4.1
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]     Checking yamux v0.4.9
[INFO] [stderr]     Checking async-tls v0.8.0
[INFO] [stderr]     Checking soketto v0.4.2
[INFO] [stderr]     Checking libp2p-pnet v0.19.1
[INFO] [stderr]     Checking unsigned-varint v0.4.0
[INFO] [stderr]     Checking parity-multiaddr v0.9.2
[INFO] [stderr]     Checking multistream-select v0.8.2
[INFO] [stderr]     Checking libp2p-swarm v0.21.0
[INFO] [stderr]     Checking libp2p-deflate v0.21.0
[INFO] [stderr]     Checking libp2p-wasm-ext v0.21.0
[INFO] [stderr]     Checking libp2p-tcp v0.21.0
[INFO] [stderr]     Checking libp2p-websocket v0.22.0
[INFO] [stderr]     Checking libp2p-yamux v0.21.0
[INFO] [stderr]     Checking libp2p-uds v0.21.0
[INFO] [stderr]     Checking libp2p-mplex v0.21.0
[INFO] [stderr]     Checking libp2p-dns v0.21.0
[INFO] [stderr]     Checking libp2p-ping v0.21.0
[INFO] [stderr]     Checking libp2p-mdns v0.21.0
[INFO] [stderr]     Checking libp2p-request-response v0.2.0
[INFO] [stderr]     Checking libp2p v0.24.0
[INFO] [stderr]  Documenting learn-libp2p v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `libp2p::tokio_codec`
[INFO] [stdout]   --> src/ping_client2.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     tokio_codec::{FramedRead, LinesCodec}
[INFO] [stdout]    |     ^^^^^^^^^^^ could not find `tokio_codec` in `libp2p`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `learn-libp2p`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ping_client2 src/ping_client2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-ad89badb0221dfda.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-c6476947246ab096.rmeta --extern libp2p=/opt/rustwide/target/debug/deps/liblibp2p-3593ad0fbfb34591.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-a9ec9fd5b461a5ec.rmeta --extern tokio_stdin_stdout=/opt/rustwide/target/debug/deps/libtokio_stdin_stdout-e214bedf60271a86.rmeta --cap-lints=warn` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `libp2p::tokio_codec`
[INFO] [stdout]   --> src/ping_listen2.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     tokio_codec::{FramedRead, LinesCodec}
[INFO] [stdout]    |     ^^^^^^^^^^^ could not find `tokio_codec` in `libp2p`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `libp2p::tokio_codec`
[INFO] [stdout]   --> src/chat.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     tokio_codec::{FramedRead, LinesCodec}
[INFO] [stdout]    |     ^^^^^^^^^^^ could not find `tokio_codec` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:89:44
[INFO] [stdout]    |
[INFO] [stdout] 89 |     struct MyBehaviour<TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite> {
[INFO] [stdout]    |                                            ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:89:74
[INFO] [stdout]    |
[INFO] [stdout] 89 |     struct MyBehaviour<TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite> {
[INFO] [stdout]    |                                                                          ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:95:30
[INFO] [stdout]    |
[INFO] [stdout] 95 |     impl<TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite> MyBehaviour<TSubstream> {
[INFO] [stdout]    |                              ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:95:60
[INFO] [stdout]    |
[INFO] [stdout] 95 |     impl<TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite> MyBehaviour<TSubstream> {
[INFO] [stdout]    |                                                            ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:98:35
[INFO] [stdout]    |
[INFO] [stdout] 98 |         where TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite
[INFO] [stdout]    |                                   ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `tokio_io` in `libp2p`
[INFO] [stdout]   --> src/chat.rs:98:65
[INFO] [stdout]    |
[INFO] [stdout] 98 |         where TSubstream: libp2p::tokio_io::AsyncRead + libp2p::tokio_io::AsyncWrite
[INFO] [stdout]    |                                                                 ^^^^^^^^ could not find `tokio_io` in `libp2p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `swarm` in `core`
[INFO] [stdout]   --> src/chat.rs:97:112
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...floodsub::Floodsub<TSubstream> as libp2p::core::swarm::NetworkBehaviour<TTopology>>::OutEvent)
[INFO] [stdout]    |                                                    ^^^^^ could not find `swarm` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::net::TcpListener`
[INFO] [stdout]  --> src/ping_listen.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::net::TcpListener;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^ no `TcpListener` in `net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::net::TcpStream`
[INFO] [stdout]  --> src/ping_listen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `TcpStream` in `net`
[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] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `libp2p::tokio_codec`
[INFO] [stdout]   --> src/ping_client3.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     tokio_codec::{FramedRead, LinesCodec}
[INFO] [stdout]    |     ^^^^^^^^^^^ could not find `tokio_codec` in `libp2p`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `libp2p::tokio_codec`
[INFO] [stdout]   --> src/ping_listen3.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     tokio_codec::{FramedRead, LinesCodec}
[INFO] [stdout]    |     ^^^^^^^^^^^ could not find `tokio_codec` in `libp2p`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::net::TcpListener`
[INFO] [stdout]  --> src/ping_client.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::net::TcpListener;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^ no `TcpListener` in `net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::net::TcpStream`
[INFO] [stdout]  --> src/ping_client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `TcpStream` in `net`
[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] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "296d893f72a0a4d69a608b94206a0b4a05642049c42be79959fb35710d8f45be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296d893f72a0a4d69a608b94206a0b4a05642049c42be79959fb35710d8f45be", kill_on_drop: false }`
[INFO] [stdout] 296d893f72a0a4d69a608b94206a0b4a05642049c42be79959fb35710d8f45be