[INFO] fetching crate grpc_logger 0.10.0...
[INFO] testing grpc_logger-0.10.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate grpc_logger 0.10.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate grpc_logger 0.10.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate grpc_logger 0.10.0
[INFO] tweaked toml for crates.io crate grpc_logger 0.10.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grpc_logger 0.10.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grpc_logger 0.10.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `GrpcWriter` is never constructed
[INFO] [stdout]  --> src/grpc/writer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GrpcWriter {
[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 `BatchingGrpcWriter` is never constructed
[INFO] [stdout]   --> src/grpc/writer.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct BatchingGrpcWriter {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/grpc/writer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl BatchingGrpcWriter {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn new(sender: mpsc::UnboundedSender<String>, buffer_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/grpc/layer.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         self.service.broadcast_log(log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogOutput` is never used
[INFO] [stdout]   --> src/config.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum LogOutput {
[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 `LogFieldsConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct LogFieldsConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct DebugConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct LogConfig {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `default_log_all_messages` is never used
[INFO] [stdout]   --> src/config.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn default_log_all_messages() -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ServerRetryConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct ServerRetryConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClientRetryConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct ClientRetryConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomTimer` is never constructed
[INFO] [stdout]    --> src/config.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | struct CustomTimer;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomFormatter` is never constructed
[INFO] [stdout]    --> src/config.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct CustomFormatter {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_timestamp`, `write_level`, `write_metadata`, and `write_location_info` are never used
[INFO] [stdout]    --> src/config.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl CustomFormatter {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout] 139 |     fn write_timestamp(&self, writer: &mut Writer<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn write_level(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn write_metadata(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn write_location_info(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_config` is never used
[INFO] [stdout]    --> src/config.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub fn load_config(path: &str) -> Result<LogConfig, Box<dyn std::error::Error + Send + Sync>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_logging` is never used
[INFO] [stdout]    --> src/config.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub fn setup_logging(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcConfig` is never constructed
[INFO] [stdout]  --> src/grpc/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct GrpcConfig {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcLayer` is never constructed
[INFO] [stdout]  --> src/grpc/layer.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct GrpcLayer {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcWriter` is never constructed
[INFO] [stdout]  --> src/grpc/writer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GrpcWriter {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchingGrpcWriter` is never constructed
[INFO] [stdout]   --> src/grpc/writer.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct BatchingGrpcWriter {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/grpc/writer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl BatchingGrpcWriter {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn new(sender: mpsc::UnboundedSender<String>, buffer_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LoggingService` is never constructed
[INFO] [stdout]   --> src/server_build.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct LoggingService {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init`, `start_server`, and `broadcast_log` are never used
[INFO] [stdout]    --> src/server_build.rs:39:12
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl LoggingService {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  39 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  48 |     pub async fn init(&self, config: &LogConfig) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     async fn start_server(&self, config: &LogConfig) -> Result<(), Box<dyn std::error::Error + Sync + Send>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |      pub async fn broadcast_log(&self, log: LogMessage) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_internal_message` is never used
[INFO] [stdout]    --> src/server_build.rs:302:4
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn is_internal_message(log: &LogMessage) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/grpc/layer.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         self.service.broadcast_log(log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "fc0b274eea5d7922e6b38b0743bee22b4ca123953de02a599c44f428258d77ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0b274eea5d7922e6b38b0743bee22b4ca123953de02a599c44f428258d77ae", kill_on_drop: false }`
[INFO] [stdout] fc0b274eea5d7922e6b38b0743bee22b4ca123953de02a599c44f428258d77ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb4f02acacd75b167126e7a62b4fe685361c394a8fa551a4c8c5398de306c9c7
[INFO] running `Command { std: "docker" "start" "-a" "fb4f02acacd75b167126e7a62b4fe685361c394a8fa551a4c8c5398de306c9c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling grpc_logger v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `GrpcWriter` is never constructed
[INFO] [stdout]  --> src/grpc/writer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GrpcWriter {
[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 `BatchingGrpcWriter` is never constructed
[INFO] [stdout]   --> src/grpc/writer.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct BatchingGrpcWriter {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/grpc/writer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl BatchingGrpcWriter {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn new(sender: mpsc::UnboundedSender<String>, buffer_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/grpc/layer.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         self.service.broadcast_log(log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcWriter` is never constructed
[INFO] [stdout]  --> src/grpc/writer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GrpcWriter {
[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 `BatchingGrpcWriter` is never constructed
[INFO] [stdout]   --> src/grpc/writer.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct BatchingGrpcWriter {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/grpc/writer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl BatchingGrpcWriter {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn new(sender: mpsc::UnboundedSender<String>, buffer_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/grpc/layer.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         self.service.broadcast_log(log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `dyn std::error::Error + Send + Sync: Sized` is not satisfied
[INFO] [stdout]  --> examples/basic.rs:7:52
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let config = load_config("examples/basic.yaml")?;
[INFO] [stdout]   |                  ----------------------------------^ doesn't have a size known at compile-time
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  this can't be annotated with `?` because it has type `Result<_, Box<(dyn std::error::Error + Send + Sync + 'static)>>`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Sized` is not implemented for `dyn std::error::Error + Send + Sync`
[INFO] [stdout]   = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]   = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `std::error::Error`
[INFO] [stdout]   = note: required for `Box<dyn std::error::Error>` to implement `From<Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `dyn std::error::Error + Send + Sync` cannot be known at compilation time
[INFO] [stdout]   --> examples/retry.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |                     return Err(e.into());
[INFO] [stdout]    |                                  ^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `dyn std::error::Error + Send + Sync`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `std::error::Error`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error>` to implement `From<Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `Into<Box<dyn std::error::Error>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `dyn std::error::Error + Send + Sync: Sized` is not satisfied
[INFO] [stdout]   --> examples/basic.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 |     service.init(&config).await?;
[INFO] [stdout]    |     ---------------------------^ doesn't have a size known at compile-time
[INFO] [stdout]    |     |
[INFO] [stdout]    |     this can't be annotated with `?` because it has type `Result<_, Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `dyn std::error::Error + Send + Sync`
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `std::error::Error`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error>` to implement `From<Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grpc_logger` (example "basic") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `check_connection` found for struct `LoggingService` in the current scope
[INFO] [stdout]   --> examples/retry.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 |         if let Err(e) = service.check_connection().await {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ method not found in `LoggingService`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `dyn std::error::Error + Send + Sync: Sized` is not satisfied
[INFO] [stdout]   --> examples/retry.rs:42:52
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let config = load_config("examples/retry.yaml")?;
[INFO] [stdout]    |                  ----------------------------------^ doesn't have a size known at compile-time
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this can't be annotated with `?` because it has type `Result<_, Box<(dyn std::error::Error + Send + Sync + 'static)>>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `dyn std::error::Error + Send + Sync`
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `std::error::Error`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error>` to implement `From<Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grpc_logger` (example "retry") due to 3 previous errors
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `dyn std::error::Error + Send + Sync: Sized` is not satisfied
[INFO] [stdout]   --> examples/client.rs:67:53
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let config = load_config("examples/client.yaml")?;
[INFO] [stdout]    |                  -----------------------------------^ doesn't have a size known at compile-time
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this can't be annotated with `?` because it has type `Result<_, Box<(dyn std::error::Error + Send + Sync + 'static)>>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `dyn std::error::Error + Send + Sync`
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error + Send + Sync>` to implement `std::error::Error`
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error>` to implement `From<Box<dyn std::error::Error + Send + Sync>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grpc_logger` (example "client") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogOutput` is never used
[INFO] [stdout]   --> src/config.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum LogOutput {
[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 `LogFieldsConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct LogFieldsConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct DebugConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct LogConfig {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `default_log_all_messages` is never used
[INFO] [stdout]   --> src/config.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn default_log_all_messages() -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ServerRetryConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct ServerRetryConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClientRetryConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct ClientRetryConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomTimer` is never constructed
[INFO] [stdout]    --> src/config.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | struct CustomTimer;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomFormatter` is never constructed
[INFO] [stdout]    --> src/config.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct CustomFormatter {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_timestamp`, `write_level`, `write_metadata`, and `write_location_info` are never used
[INFO] [stdout]    --> src/config.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl CustomFormatter {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout] 139 |     fn write_timestamp(&self, writer: &mut Writer<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn write_level(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn write_metadata(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn write_location_info(&self, writer: &mut Writer<'_>, event: &tracing::Event<'_>) -> std::fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_config` is never used
[INFO] [stdout]    --> src/config.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub fn load_config(path: &str) -> Result<LogConfig, Box<dyn std::error::Error + Send + Sync>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_logging` is never used
[INFO] [stdout]    --> src/config.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub fn setup_logging(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcConfig` is never constructed
[INFO] [stdout]  --> src/grpc/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct GrpcConfig {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcLayer` is never constructed
[INFO] [stdout]  --> src/grpc/layer.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct GrpcLayer {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GrpcWriter` is never constructed
[INFO] [stdout]  --> src/grpc/writer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GrpcWriter {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchingGrpcWriter` is never constructed
[INFO] [stdout]   --> src/grpc/writer.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct BatchingGrpcWriter {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/grpc/writer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl BatchingGrpcWriter {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 40 |     pub fn new(sender: mpsc::UnboundedSender<String>, buffer_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LoggingService` is never constructed
[INFO] [stdout]   --> src/server_build.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct LoggingService {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init`, `start_server`, and `broadcast_log` are never used
[INFO] [stdout]    --> src/server_build.rs:39:12
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl LoggingService {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  39 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  48 |     pub async fn init(&self, config: &LogConfig) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     async fn start_server(&self, config: &LogConfig) -> Result<(), Box<dyn std::error::Error + Sync + Send>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |      pub async fn broadcast_log(&self, log: LogMessage) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_internal_message` is never used
[INFO] [stdout]    --> src/server_build.rs:302:4
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn is_internal_message(log: &LogMessage) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/grpc/layer.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         self.service.broadcast_log(log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb4f02acacd75b167126e7a62b4fe685361c394a8fa551a4c8c5398de306c9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4f02acacd75b167126e7a62b4fe685361c394a8fa551a4c8c5398de306c9c7", kill_on_drop: false }`
[INFO] [stdout] fb4f02acacd75b167126e7a62b4fe685361c394a8fa551a4c8c5398de306c9c7
