[INFO] fetching crate ort-tcp 0.2.0...
[INFO] building ort-tcp-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate ort-tcp 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ort-tcp 0.2.0
[INFO] finished tweaking crates.io crate ort-tcp 0.2.0
[INFO] tweaked toml for crates.io crate ort-tcp 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ort-tcp 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] [stderr]       Adding drain v0.1.2 (available: v0.2.1)
[INFO] [stderr]       Adding tokio-util v0.6.10 (available: v0.7.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c5185129f8200bbec13017b71a7e2d6b8ea99189852147463fa184be1b9b97b
[INFO] running `Command { std: "docker" "start" "-a" "7c5185129f8200bbec13017b71a7e2d6b8ea99189852147463fa184be1b9b97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c5185129f8200bbec13017b71a7e2d6b8ea99189852147463fa184be1b9b97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5185129f8200bbec13017b71a7e2d6b8ea99189852147463fa184be1b9b97b", kill_on_drop: false }`
[INFO] [stdout] 7c5185129f8200bbec13017b71a7e2d6b8ea99189852147463fa184be1b9b97b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] defab2b282107b5cddd2586d42e15c3e771a54de98322b7cc1afae0790d20b38
[INFO] running `Command { std: "docker" "start" "-a" "defab2b282107b5cddd2586d42e15c3e771a54de98322b7cc1afae0790d20b38", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling ort-core v0.2.0
[INFO] [stderr]    Compiling tokio-util v0.6.10
[INFO] [stderr]    Compiling drain v0.1.2
[INFO] [stderr]    Compiling ort-tcp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: fields `buffer_capacity`, `encoder`, and `decoder` are never read
[INFO] [stdout]   --> src/muxer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Muxer<E, D> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     buffer_capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     encoder: FramedEncode<E>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     decoder: FramedDecode<D>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Muxer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout]  1 | #![deny(warnings, rust_2018_idioms)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ort-tcp` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "defab2b282107b5cddd2586d42e15c3e771a54de98322b7cc1afae0790d20b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defab2b282107b5cddd2586d42e15c3e771a54de98322b7cc1afae0790d20b38", kill_on_drop: false }`
[INFO] [stdout] defab2b282107b5cddd2586d42e15c3e771a54de98322b7cc1afae0790d20b38