[INFO] fetching crate ort-tcp 0.2.0...
[INFO] testing ort-tcp-0.2.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate ort-tcp 0.2.0 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ort-tcp 0.2.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 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: v0.7.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9239df32ff7b21982e4ef99c652fbe8d114f6dccbe48d49a07aecddfc4070fb1
[INFO] running `Command { std: "docker" "start" "-a" "9239df32ff7b21982e4ef99c652fbe8d114f6dccbe48d49a07aecddfc4070fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9239df32ff7b21982e4ef99c652fbe8d114f6dccbe48d49a07aecddfc4070fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9239df32ff7b21982e4ef99c652fbe8d114f6dccbe48d49a07aecddfc4070fb1", kill_on_drop: false }`
[INFO] [stdout] 9239df32ff7b21982e4ef99c652fbe8d114f6dccbe48d49a07aecddfc4070fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78345bd3186c8ec97ebc2fd870472bf61c45f401e71ef662f59ffcd5c1d3499a
[INFO] running `Command { std: "docker" "start" "-a" "78345bd3186c8ec97ebc2fd870472bf61c45f401e71ef662f59ffcd5c1d3499a", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling tokio-util v0.6.10
[INFO] [stderr]    Compiling drain v0.1.2
[INFO] [stderr]    Compiling ort-core v0.2.0
[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" "78345bd3186c8ec97ebc2fd870472bf61c45f401e71ef662f59ffcd5c1d3499a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78345bd3186c8ec97ebc2fd870472bf61c45f401e71ef662f59ffcd5c1d3499a", kill_on_drop: false }`
[INFO] [stdout] 78345bd3186c8ec97ebc2fd870472bf61c45f401e71ef662f59ffcd5c1d3499a