[INFO] cloning repository https://github.com/DavidVentura/snapcast-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavidVentura/snapcast-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidVentura%2Fsnapcast-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidVentura%2Fsnapcast-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9885c9ecca6c9043d7f3fbeedf1ff9d43068c04
[INFO] checking DavidVentura/snapcast-client against try#24e1a22664233bce1f9b5dc6eee7c1f74327e28c for pr-159343
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidVentura%2Fsnapcast-client" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DavidVentura/snapcast-client
[INFO] finished tweaking git repo https://github.com/DavidVentura/snapcast-client
[INFO] tweaked toml for git repo https://github.com/DavidVentura/snapcast-client written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DavidVentura/snapcast-client on toolchain 24e1a22664233bce1f9b5dc6eee7c1f74327e28c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DavidVentura/snapcast-client 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" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3
[INFO] running `Command { std: "docker" "start" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3", 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" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3", 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" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Expired(TimeVal),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Expired(TimeVal),
[INFO] [stdout] 14 +     Expired(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clock_offset` is never used
[INFO] [stdout]   --> src/client.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl ClientMachine {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn clock_offset(&self) -> TimeVal {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clock_offset` is never used
[INFO] [stdout]    --> src/client.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl ConnectedClient {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn clock_offset(&self) -> TimeVal {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_volume` and `sample_rate` are never used
[INFO] [stdout]   --> src/playback/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Player {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn set_volume(&mut self, val: u8) -> anyhow::Result<()>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 25 |     fn sample_rate(&self) -> u16;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/playback/file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct File {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     f: std::fs::File,
[INFO] [stdout] 6 |     sample_rate: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/playback/tcp.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Tcp {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 6 |     s: TcpStream,
[INFO] [stdout] 7 |     sample_rate: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_buf`, `abs`, and `millis` are never used
[INFO] [stdout]   --> src/proto.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl TimeVal {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn as_buf(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn abs(&self) -> TimeVal {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn millis(&self) -> anyhow::Result<u16> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ClientMessage` is never used
[INFO] [stdout]    --> src/proto.rs:138:10
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub enum ClientMessage<'a> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_buf` is never used
[INFO] [stdout]    --> src/proto.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | impl CodecHeader<'_> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] 207 |     pub fn as_buf(&self, id: u16, now: TimeVal) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_buf` is never used
[INFO] [stdout]    --> src/proto.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl ServerSettings {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] 227 |     pub fn as_buf(&self, id: u16, now: TimeVal) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_buf` is never used
[INFO] [stdout]    --> src/proto.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 251 | impl WireChunk<'_> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] 252 |     pub fn as_buf(&self, id: u16, now: TimeVal) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `decode_c` is never used
[INFO] [stdout]    --> src/proto.rs:326:12
[INFO] [stdout]     |
[INFO] [stdout] 309 | impl Base {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 326 |     pub fn decode_c<'a>(&self, payload: &'a [u8]) -> anyhow::Result<ClientMessage<'a>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `as_buf` is never used
[INFO] [stdout]    --> src/proto.rs:358:12
[INFO] [stdout]     |
[INFO] [stdout] 352 | impl Time {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 358 |     pub fn as_buf(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPUS_MARKER` is never used
[INFO] [stdout]    --> src/proto.rs:429:11
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub const OPUS_MARKER: u32 = 0x4F50_5553;
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_payload` is never used
[INFO] [stdout]    --> src/proto.rs:432:12
[INFO] [stdout]     |
[INFO] [stdout] 431 | impl OpusMetadata {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] 432 |     pub fn as_payload(&self) -> [u8; 12] {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `channels` and `as_payload` are never used
[INFO] [stdout]    --> src/proto.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 510 | impl CodecMetadata {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] 511 |     pub fn channels(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 525 |     fn as_payload(&self) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clock_offset` is never used
[INFO] [stdout]    --> src/client.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl ConnectedClient {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn clock_offset(&self) -> TimeVal {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_volume` and `sample_rate` are never used
[INFO] [stdout]   --> src/playback/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Player {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn set_volume(&mut self, val: u8) -> anyhow::Result<()>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 25 |     fn sample_rate(&self) -> u16;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/playback/file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct File {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     f: std::fs::File,
[INFO] [stdout] 6 |     sample_rate: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/playback/tcp.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Tcp {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 6 |     s: TcpStream,
[INFO] [stdout] 7 |     sample_rate: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `millis` is never used
[INFO] [stdout]   --> src/proto.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl TimeVal {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn millis(&self) -> anyhow::Result<u16> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `channels` is never used
[INFO] [stdout]    --> src/proto.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 510 | impl CodecMetadata {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] 511 |     pub fn channels(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 10s
[INFO] running `Command { std: "docker" "inspect" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3", kill_on_drop: false }`
[INFO] [stdout] 5bce049c0a02bd0c171785d47cbc8181cac400bcf611ddb1dce475c5afb996d3