[INFO] cloning repository https://github.com/jmcph4/rust-libp2p-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmcph4/rust-libp2p-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcph4%2Frust-libp2p-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcph4%2Frust-libp2p-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a68a1af37d302476040a5faf607ffb784b250cb5
[INFO] testing jmcph4/rust-libp2p-playground against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcph4%2Frust-libp2p-playground" "/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/jmcph4/rust-libp2p-playground on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmcph4/rust-libp2p-playground
[INFO] finished tweaking git repo https://github.com/jmcph4/rust-libp2p-playground
[INFO] tweaked toml for git repo https://github.com/jmcph4/rust-libp2p-playground written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/jmcph4/rust-libp2p-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minicbor-derive v0.6.3
[INFO] [stderr]   Downloaded aead v0.4.1
[INFO] [stderr]   Downloaded polyval v0.5.1
[INFO] [stderr]   Downloaded poly1305 v0.7.0
[INFO] [stderr]   Downloaded libp2p-gossipsub v0.31.0
[INFO] [stderr]   Downloaded aes-gcm v0.9.2
[INFO] [stderr]   Downloaded libp2p v0.38.0
[INFO] [stderr]   Downloaded libp2p-noise v0.31.0
[INFO] [stderr]   Downloaded ghash v0.4.2
[INFO] [stderr]   Downloaded salsa20 v0.8.0
[INFO] [stderr]   Downloaded lru v0.6.5
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 37360008761f98a284917f096c3e5f308e4e7ee22d895319ac2d297c83505c4c
[INFO] running `Command { std: "docker" "start" "-a" "37360008761f98a284917f096c3e5f308e4e7ee22d895319ac2d297c83505c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37360008761f98a284917f096c3e5f308e4e7ee22d895319ac2d297c83505c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37360008761f98a284917f096c3e5f308e4e7ee22d895319ac2d297c83505c4c", kill_on_drop: false }`
[INFO] [stdout] 37360008761f98a284917f096c3e5f308e4e7ee22d895319ac2d297c83505c4c
[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" "RUSTFLAGS=--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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--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] 8a9a008e106298d9983c47277a1f1830d5b860173c9316a824be2ffe2c173238
[INFO] running `Command { std: "docker" "start" "-a" "8a9a008e106298d9983c47277a1f1830d5b860173c9316a824be2ffe2c173238", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
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[INFO] [stderr]    Compiling cc v1.0.68
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[INFO] [stderr]    Compiling asn1_der v0.7.4
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[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling hex v0.4.3
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[INFO] [stderr]    Compiling hex_fmt v0.3.0
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[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling async-mutex v1.4.0
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[INFO] [stderr]    Compiling ed25519 v1.1.1
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[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.4.1
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[INFO] [stderr]    Compiling ctr v0.7.0
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[INFO] [stderr]    Compiling ghash v0.4.2
[INFO] [stderr]    Compiling getrandom v0.2.3
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[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
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[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling aes-gcm v0.9.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling cuckoofilter v0.5.0
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]    Compiling webpki-roots v0.21.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling minicbor-derive v0.6.3
[INFO] [stderr]    Compiling libp2p-swarm-derive v0.23.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling rustls v0.19.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling curve25519-dalek v3.1.0
[INFO] [stderr]    Compiling chacha20 v0.7.1
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling chacha20poly1305 v0.8.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling if-watch v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling x25519-dalek v1.1.1
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling minicbor v0.8.1
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling futures-rustls v0.21.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling asynchronous-codec v0.6.0
[INFO] [stderr]    Compiling trust-dns-proto v0.20.3
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling unsigned-varint v0.7.0
[INFO] [stderr]    Compiling rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling wasm-timer v0.2.5
[INFO] [stderr]    Compiling soketto v0.4.2
[INFO] [stderr]    Compiling yamux v0.9.0
[INFO] [stderr]    Compiling libp2p-pnet v0.21.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling multistream-select v0.10.2
[INFO] [stderr]    Compiling libp2p-core v0.28.3
[INFO] [stderr]    Compiling libp2p-noise v0.31.0
[INFO] [stderr]    Compiling libp2p-relay v0.2.0
[INFO] [stderr]    Compiling libp2p-gossipsub v0.31.0
[INFO] [stderr]    Compiling libp2p-plaintext v0.28.0
[INFO] [stderr]    Compiling libp2p-kad v0.30.0
[INFO] [stderr]    Compiling libp2p-floodsub v0.29.0
[INFO] [stderr]    Compiling libp2p-identify v0.29.0
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling trust-dns-resolver v0.20.3
[INFO] [stderr]    Compiling async-std-resolver v0.20.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.24
[INFO] [stderr]    Compiling multihash-derive v0.7.2
[INFO] [stderr]    Compiling multihash v0.13.2
[INFO] [stderr]    Compiling parity-multiaddr v0.11.2
[INFO] [stderr]    Compiling libp2p-swarm v0.29.0
[INFO] [stderr]    Compiling libp2p-wasm-ext v0.28.2
[INFO] [stderr]    Compiling libp2p-tcp v0.28.0
[INFO] [stderr]    Compiling libp2p-dns v0.28.1
[INFO] [stderr]    Compiling libp2p-uds v0.28.0
[INFO] [stderr]    Compiling libp2p-deflate v0.28.0
[INFO] [stderr]    Compiling libp2p-websocket v0.29.0
[INFO] [stderr]    Compiling libp2p-yamux v0.32.0
[INFO] [stderr]    Compiling libp2p-mplex v0.28.0
[INFO] [stderr]    Compiling libp2p-ping v0.29.0
[INFO] [stderr]    Compiling libp2p-request-response v0.11.0
[INFO] [stderr]    Compiling libp2p-mdns v0.30.2
[INFO] [stderr]    Compiling libp2p v0.38.0
[INFO] [stderr]    Compiling rust-libp2p-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]  --> src/main.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libp2p::{floodsub, identity, Multiaddr, PeerId, Transport};
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `topic`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let topic: floodsub::Topic = floodsub::Topic::new("recipes".to_string());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_topic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data_filepath`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     data_filepath: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 11s
[INFO] running `Command { std: "docker" "inspect" "8a9a008e106298d9983c47277a1f1830d5b860173c9316a824be2ffe2c173238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a9a008e106298d9983c47277a1f1830d5b860173c9316a824be2ffe2c173238", kill_on_drop: false }`
[INFO] [stdout] 8a9a008e106298d9983c47277a1f1830d5b860173c9316a824be2ffe2c173238
[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" "RUSTFLAGS=--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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--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] c4fbe25e9d7d1105f8c8c0c08a63180ef895a44f47910aac610db97749f71a64
[INFO] running `Command { std: "docker" "start" "-a" "c4fbe25e9d7d1105f8c8c0c08a63180ef895a44f47910aac610db97749f71a64", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-libp2p-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]  --> src/main.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libp2p::{floodsub, identity, Multiaddr, PeerId, Transport};
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `topic`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let topic: floodsub::Topic = floodsub::Topic::new("recipes".to_string());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_topic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data_filepath`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     data_filepath: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "c4fbe25e9d7d1105f8c8c0c08a63180ef895a44f47910aac610db97749f71a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fbe25e9d7d1105f8c8c0c08a63180ef895a44f47910aac610db97749f71a64", kill_on_drop: false }`
[INFO] [stdout] c4fbe25e9d7d1105f8c8c0c08a63180ef895a44f47910aac610db97749f71a64
[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" "RUSTFLAGS=--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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b7565150452b4ec89e8a7d22e0a55a469c14c6bedec1a966201c0af928e1cb5
[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" "7b7565150452b4ec89e8a7d22e0a55a469c14c6bedec1a966201c0af928e1cb5", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Transport`
[INFO] [stderr]  --> src/main.rs:8:53
[INFO] [stderr]   |
[INFO] [stderr] 8 | use libp2p::{floodsub, identity, Multiaddr, PeerId, Transport};
[INFO] [stderr]   |                                                     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `topic`
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let topic: floodsub::Topic = floodsub::Topic::new("recipes".to_string());
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_topic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data_filepath`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     data_filepath: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-libp2p-playground` (bin "rust-libp2p-playground" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_libp2p_playground-6af21bf991b14995)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b7565150452b4ec89e8a7d22e0a55a469c14c6bedec1a966201c0af928e1cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7565150452b4ec89e8a7d22e0a55a469c14c6bedec1a966201c0af928e1cb5", kill_on_drop: false }`
[INFO] [stdout] 7b7565150452b4ec89e8a7d22e0a55a469c14c6bedec1a966201c0af928e1cb5