[INFO] fetching crate sia 0.0.4...
[INFO] checking sia-0.0.4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate sia 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sia 0.0.4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sia 0.0.4
[INFO] finished tweaking crates.io crate sia 0.0.4
[INFO] tweaked toml for crates.io crate sia 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 209 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.1)
[INFO] [stderr]       Adding aead v0.4.3 (latest: v0.5.2)
[INFO] [stderr]       Adding aes v0.7.5 (latest: v0.8.4)
[INFO] [stderr]       Adding aes-gcm v0.9.4 (latest: v0.10.3)
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.3.1)
[INFO] [stderr]       Adding async-io v1.13.0 (latest: v2.3.4)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.4.0)
[INFO] [stderr]       Adding async-process v1.8.1 (latest: v2.2.4)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.1)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding blake2 v0.9.2 (latest: v0.10.6)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding chacha20 v0.7.3 (latest: v0.9.1)
[INFO] [stderr]       Adding chacha20poly1305 v0.8.2 (latest: v0.10.1)
[INFO] [stderr]       Adding cipher v0.3.0 (latest: v0.4.4)
[INFO] [stderr]       Adding compact_str v0.2.0 (latest: v0.8.0)
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding crypto-mac v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding ctr v0.8.0 (latest: v0.9.2)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (latest: v4.1.3)
[INFO] [stderr]       Adding dashmap v5.5.3 (latest: v6.0.1)
[INFO] [stderr]       Adding derive_more v0.99.18 (latest: v1.0.0)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.1)
[INFO] [stderr]       Adding event-listener v3.1.0 (latest: v5.3.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.1.1)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding ghash v0.4.4 (latest: v0.5.1)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding gloo-timers v0.2.6 (latest: v0.3.0)
[INFO] [stderr]       Adding hash32 v0.2.1 (latest: v0.3.1)
[INFO] [stderr]       Adding heapless v0.7.17 (latest: v0.8.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding igcp v0.0.4 (latest: v0.1.6)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (latest: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (latest: v0.6.5)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.5)
[INFO] [stderr]       Adding miniz_oxide v0.7.4 (latest: v0.8.0)
[INFO] [stderr]       Adding polling v2.8.0 (latest: v3.7.3)
[INFO] [stderr]       Adding poly1305 v0.7.2 (latest: v0.8.0)
[INFO] [stderr]       Adding polyval v0.5.3 (latest: v0.6.2)
[INFO] [stderr]       Adding postcard v0.7.3 (latest: v1.0.10)
[INFO] [stderr]       Adding postcard-cobs v0.1.5-pre (latest: v0.2.0)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.2.0)
[INFO] [stderr]       Adding radium v0.7.0 (latest: v1.1.0)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rustc_version v0.3.3 (latest: v0.4.1)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.35)
[INFO] [stderr]       Adding semver v0.11.0 (latest: v1.0.23)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding snow v0.8.0 (latest: v0.9.6)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.7)
[INFO] [stderr]       Adding subtle v2.4.1 (latest: v2.6.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.20)
[INFO] [stderr]       Adding universal-hash v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.18)
[INFO] [stderr]       Adding wyz v0.5.1 (latest: v0.6.1)
[INFO] [stderr]       Adding x25519-dalek v1.2.0 (latest: v2.0.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (latest: v1.8.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 postcard v0.7.3
[INFO] [stderr]   Downloaded chacha20 v0.7.3
[INFO] [stderr]   Downloaded igcp v0.0.4
[INFO] [stderr]   Downloaded ghash v0.4.4
[INFO] [stderr]   Downloaded sia-macro v0.0.2
[INFO] [stderr]   Downloaded chacha20poly1305 v0.8.2
[INFO] [stderr]   Downloaded compact_str v0.2.0
[INFO] [stderr]   Downloaded aes-gcm v0.9.4
[INFO] [stderr]   Downloaded snow v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb6280873507de3acfaccdce567a1a5f5498202de55ac5a16bbb10d585dda4f
[INFO] running `Command { std: "docker" "start" "-a" "3eb6280873507de3acfaccdce567a1a5f5498202de55ac5a16bbb10d585dda4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb6280873507de3acfaccdce567a1a5f5498202de55ac5a16bbb10d585dda4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb6280873507de3acfaccdce567a1a5f5498202de55ac5a16bbb10d585dda4f", kill_on_drop: false }`
[INFO] [stdout] 3eb6280873507de3acfaccdce567a1a5f5498202de55ac5a16bbb10d585dda4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be43358267d6320e39f8b3980bc5490b0f14516945c24846ab8ffa082c85b20a
[INFO] running `Command { std: "docker" "start" "-a" "be43358267d6320e39f8b3980bc5490b0f14516945c24846ab8ffa082c85b20a", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking cpufeatures v0.2.13
[INFO] [stderr]    Compiling rustix v0.38.35
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]     Checking event-listener v5.3.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking value-bag v1.9.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking polyval v0.5.3
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling serde_json v1.0.127
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking ghash v0.4.4
[INFO] [stderr]     Checking async-executor v1.13.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking event-listener v3.1.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking aes-gcm v0.9.4
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking chacha20 v0.7.3
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking chacha20poly1305 v0.8.2
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling pest v2.7.11
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.7.3
[INFO] [stderr]     Checking x25519-dalek v1.2.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking async-io v2.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking async-signal v0.2.10
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking async-process v1.8.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]    Compiling serde_repr v0.1.19
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling sia-macro v0.0.2
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling snow v0.8.0
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking compact_str v0.2.0
[INFO] [stderr]     Checking postcard v0.7.3
[INFO] [stderr]     Checking bson v2.11.0
[INFO] [stderr]     Checking igcp v0.0.4
[INFO] [stderr]     Checking sia v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/tcp.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Tcp(TcpListener);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/tcp.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct InsecureTcp(TcpListener);
[INFO] [stdout]    |            ----------- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/unix.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Unix(UnixListener);
[INFO] [stdout]    |            ---- ^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/unix.rs:82:25
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub struct InsecureUnix(UnixListener);
[INFO] [stdout]    |            ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/tcp.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Tcp(TcpListener);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/tcp.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct InsecureTcp(TcpListener);
[INFO] [stdout]    |            ----------- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/unix.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Unix(UnixListener);
[INFO] [stdout]    |            ---- ^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/providers/unix.rs:82:25
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub struct InsecureUnix(UnixListener);
[INFO] [stdout]    |            ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snow v0.8.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "be43358267d6320e39f8b3980bc5490b0f14516945c24846ab8ffa082c85b20a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be43358267d6320e39f8b3980bc5490b0f14516945c24846ab8ffa082c85b20a", kill_on_drop: false }`
[INFO] [stdout] be43358267d6320e39f8b3980bc5490b0f14516945c24846ab8ffa082c85b20a