[INFO] fetching crate constraint-mux 0.2.0...
[INFO] checking constraint-mux-0.2.0 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate constraint-mux 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate constraint-mux 0.2.0
[INFO] finished tweaking crates.io crate constraint-mux 0.2.0
[INFO] tweaked toml for crates.io crate constraint-mux 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate constraint-mux 0.2.0 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate constraint-mux 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `constraint-mux` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio-serial v5.0.6
[INFO] [stderr]   Downloaded unescaper v0.1.8
[INFO] [stderr]   Downloaded tokio-serial v5.4.5
[INFO] [stderr]   Downloaded serialport v4.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb
[INFO] running `Command { std: "docker" "start" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `constraint-mux` (manifest) generated 1 warning
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking tower-http v0.6.11
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.6.1
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking unescaper v0.1.8
[INFO] [stderr]     Checking tungstenite v0.29.0
[INFO] [stderr]     Checking tungstenite v0.24.0
[INFO] [stderr]     Checking serialport v4.9.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking mio-serial v5.0.6
[INFO] [stderr]     Checking axum-core v0.5.6
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking hyper v1.9.0
[INFO] [stderr]     Checking tower v0.5.3
[INFO] [stderr]     Checking tokio-tungstenite v0.29.0
[INFO] [stderr]     Checking tokio-tungstenite v0.24.0
[INFO] [stderr]     Checking tokio-serial v5.4.5
[INFO] [stderr]     Checking hyper-util v0.1.20
[INFO] [stderr]     Checking axum v0.8.9
[INFO] [stderr]     Checking constraint-mux v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/protocol.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let len = u32::from_be_bytes([framed[0], framed[1], framed[2], framed[3]]) as usize;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ratio` is never used
[INFO] [stdout]   --> src/consonance.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl LatticePoint {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn ratio(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConsonanceEvent` is never constructed
[INFO] [stdout]    --> src/consonance.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct ConsonanceEvent {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `normalized` and `decay` are never used
[INFO] [stdout]    --> src/consonance.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl ConsonanceHeatmap {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 190 |     pub fn normalized(&self) -> Vec<Vec<f32>> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn decay(&mut self, factor: f32) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `alias` is never read
[INFO] [stdout]   --> src/multiplexer.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Multiplexer {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 12 |     pub alias: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `client_count` is never used
[INFO] [stdout]    --> src/multiplexer.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Multiplexer {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 178 |     pub fn client_count(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `encode`, `encode_framed`, and `to_event` are never used
[INFO] [stdout]   --> src/protocol.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl ConsonanceMessage {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn encode_framed(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn to_event(&self) -> ConsonanceEvent {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `encode_framed` and `decode` are never used
[INFO] [stdout]    --> src/protocol.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl MuxMessage {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 110 |     /// Encode to JSON bytes with 4-byte BE length prefix.
[INFO] [stdout] 111 |     pub fn encode_framed(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn decode(data: &[u8]) -> Option<Self> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/protocol.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let len = u32::from_be_bytes([framed[0], framed[1], framed[2], framed[3]]) as usize;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConsonanceEvent` is never constructed
[INFO] [stdout]    --> src/consonance.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct ConsonanceEvent {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `alias` is never read
[INFO] [stdout]   --> src/multiplexer.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Multiplexer {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 12 |     pub alias: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_event` is never used
[INFO] [stdout]   --> src/protocol.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl ConsonanceMessage {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn to_event(&self) -> ConsonanceEvent {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `dirs`
[INFO] [stderr]   --> Cargo.toml:22:15
[INFO] [stderr]    |
[INFO] [stderr] 22 | [dependencies.dirs]
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `dirs`
[INFO] [stderr] warning: unused dependency `tower-http`
[INFO] [stderr]   --> Cargo.toml:45:15
[INFO] [stderr]    |
[INFO] [stderr] 45 | [dependencies.tower-http]
[INFO] [stderr]    |               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tower-http`
[INFO] [stderr] warning: `constraint-mux` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb", kill_on_drop: false }`
[INFO] [stdout] 7c74c126d36b47e0490307da83d4856bb98b418463a968f427a60f09e7428ddb
