[INFO] cloning repository https://github.com/A-The-Programming-Language/a-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/A-The-Programming-Language/a-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-The-Programming-Language%2Fa-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-The-Programming-Language%2Fa-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86e2bfd980f4c23b1ce777fbb8649500501f61fa
[INFO] checking A-The-Programming-Language/a-lang against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-The-Programming-Language%2Fa-lang" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/A-The-Programming-Language/a-lang
[INFO] finished tweaking git repo https://github.com/A-The-Programming-Language/a-lang
[INFO] tweaked toml for git repo https://github.com/A-The-Programming-Language/a-lang written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/A-The-Programming-Language/a-lang on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/A-The-Programming-Language/a-lang 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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "d35e7f7c86c9401644ededf5499d1d86d98aab1254c6baaaa5db084d258e58e7", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "d35e7f7c86c9401644ededf5499d1d86d98aab1254c6baaaa5db084d258e58e7", kill_on_drop: false }`
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[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "5c86c8c6a62507dff1348ce16fe10c86d24ea107488ad33251a162c79db203fc", kill_on_drop: false }`
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[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking proptest v1.9.0
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking a-lang v1.0.0-preview (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/stdlib/bytes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_void`
[INFO] [stdout]  --> src/stdlib/ffi.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::os::raw::{c_char, c_double, c_int, c_void};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HeaderMap`, `Method`, `Next`, `Path`, `Query`, `Response`, `State`, and `self`
[INFO] [stdout]  --> src/stdlib/http_server.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     extract::{Json, Path, Query, State},
[INFO] [stdout]   |                     ^^^^  ^^^^^  ^^^^^
[INFO] [stdout] 7 |     http::{HeaderMap, Method, StatusCode},
[INFO] [stdout]   |            ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 8 |     middleware::{self, Next},
[INFO] [stdout]   |                  ^^^^  ^^^^
[INFO] [stdout] 9 |     response::{IntoResponse, Response},
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ByteOrder`, `HttpMethod`, `HttpRequest`, `PinMode`, `PinState`, `SpiMode`, `StructPacker`, `UartConfig`, and `UartParity`
[INFO] [stdout]  --> src/stdlib/integration.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 |     bytes::{BinaryEncoder, BitOps, ByteBuffer, ByteOrder, StructPacker},
[INFO] [stdout]   |                                                ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 7 |     ffi::FFIContext,
[INFO] [stdout] 8 |     hardware::{HardwareManager, PinMode, PinState, SpiMode, UartConfig, UartParity},
[INFO] [stdout]   |                                 ^^^^^^^  ^^^^^^^^  ^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 9 |     network::{HttpClient, HttpMethod, HttpRequest, NetUtils, TcpConnection, UdpSocketWrapper},
[INFO] [stdout]   |                           ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddr`
[INFO] [stdout]  --> src/stdlib/network.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::net::{SocketAddr, TcpListener, TcpStream, ToSocketAddrs, UdpSocket};
[INFO] [stdout]   |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/stdlib/network.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MaybeTlsStream`, `WebSocketStream`, and `connect_async`
[INFO] [stdout]   --> src/stdlib/websocket.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     connect_async, tungstenite::protocol::Message as WsMessage, MaybeTlsStream, WebSocketStream,
[INFO] [stdout]    |     ^^^^^^^^^^^^^                                               ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/stdlib/bytes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_void`
[INFO] [stdout]  --> src/stdlib/ffi.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::os::raw::{c_char, c_double, c_int, c_void};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HeaderMap`, `Method`, `Next`, `Path`, `Query`, `Response`, `State`, and `self`
[INFO] [stdout]  --> src/stdlib/http_server.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     extract::{Json, Path, Query, State},
[INFO] [stdout]   |                     ^^^^  ^^^^^  ^^^^^
[INFO] [stdout] 7 |     http::{HeaderMap, Method, StatusCode},
[INFO] [stdout]   |            ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 8 |     middleware::{self, Next},
[INFO] [stdout]   |                  ^^^^  ^^^^
[INFO] [stdout] 9 |     response::{IntoResponse, Response},
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ByteOrder`, `HttpMethod`, `HttpRequest`, `PinMode`, `PinState`, `SpiMode`, `StructPacker`, `UartConfig`, and `UartParity`
[INFO] [stdout]  --> src/stdlib/integration.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 |     bytes::{BinaryEncoder, BitOps, ByteBuffer, ByteOrder, StructPacker},
[INFO] [stdout]   |                                                ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 7 |     ffi::FFIContext,
[INFO] [stdout] 8 |     hardware::{HardwareManager, PinMode, PinState, SpiMode, UartConfig, UartParity},
[INFO] [stdout]   |                                 ^^^^^^^  ^^^^^^^^  ^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 9 |     network::{HttpClient, HttpMethod, HttpRequest, NetUtils, TcpConnection, UdpSocketWrapper},
[INFO] [stdout]   |                           ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddr`
[INFO] [stdout]  --> src/stdlib/network.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::net::{SocketAddr, TcpListener, TcpStream, ToSocketAddrs, UdpSocket};
[INFO] [stdout]   |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/stdlib/network.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MaybeTlsStream`, `WebSocketStream`, and `connect_async`
[INFO] [stdout]   --> src/stdlib/websocket.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     connect_async, tungstenite::protocol::Message as WsMessage, MaybeTlsStream, WebSocketStream,
[INFO] [stdout]    |     ^^^^^^^^^^^^^                                               ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> src/stdlib/websocket.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_util::{SinkExt, StreamExt};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SinkExt`
[INFO] [stdout]  --> src/stdlib/websocket.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_util::{SinkExt, StreamExt};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> src/stdlib/websocket.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_util::{SinkExt, StreamExt};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SinkExt`
[INFO] [stdout]  --> src/stdlib/websocket.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_util::{SinkExt, StreamExt};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `init_stmt`
[INFO] [stdout]    --> src/parser/mod.rs:693:21
[INFO] [stdout]     |
[INFO] [stdout] 693 |         if let Some(init_stmt) = init {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_stmt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `init_stmt`
[INFO] [stdout]    --> src/parser/mod.rs:693:21
[INFO] [stdout]     |
[INFO] [stdout] 693 |         if let Some(init_stmt) = init {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_stmt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protocol`
[INFO] [stdout]    --> src/stdlib/network.rs:337:14
[INFO] [stdout]     |
[INFO] [stdout] 337 |         let (protocol, rest) = if url.starts_with("http://") {
[INFO] [stdout]     |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/syntax_ext/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut registry = SyntaxRegistry::new();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protocol`
[INFO] [stdout]    --> src/stdlib/network.rs:337:14
[INFO] [stdout]     |
[INFO] [stdout] 337 |         let (protocol, rest) = if url.starts_with("http://") {
[INFO] [stdout]     |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protocol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `current_node` is never read
[INFO] [stdout]    --> src/reactive/mod.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct ReactiveContext {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 243 |     current_node: RwLock<Option<NodeId>>,
[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 `config` is never read
[INFO] [stdout]    --> src/stdlib/database.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct Database {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 107 |     config: DatabaseConfig,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/stdlib/ffi.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct FFILibrary {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/stdlib/network.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct TcpConnection {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 20 |     stream: TcpStream,
[INFO] [stdout] 21 |     address: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/stdlib/network.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct TcpServer {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 81 |     listener: TcpListener,
[INFO] [stdout] 82 |     address: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]    --> src/stdlib/network.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct UdpSocketWrapper {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 112 |     socket: UdpSocket,
[INFO] [stdout] 113 |     address: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_index` is never read
[INFO] [stdout]    --> src/time_travel/mod.rs:406:5
[INFO] [stdout]     |
[INFO] [stdout] 405 | pub struct ReplaySession<'a> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 406 |     start_index: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/time_travel/mod.rs:342:24
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn replay_from(&mut self, snapshot_id: usize) -> Result<ReplaySession, TimeTravelError> {
[INFO] [stdout]     |                        ^^^^^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn replay_from(&mut self, snapshot_id: usize) -> Result<ReplaySession<'_>, TimeTravelError> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `current_node` is never read
[INFO] [stdout]    --> src/reactive/mod.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct ReactiveContext {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 243 |     current_node: RwLock<Option<NodeId>>,
[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 `config` is never read
[INFO] [stdout]    --> src/stdlib/database.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct Database {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 107 |     config: DatabaseConfig,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/stdlib/ffi.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct FFILibrary {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/stdlib/network.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct TcpConnection {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 20 |     stream: TcpStream,
[INFO] [stdout] 21 |     address: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]   --> src/stdlib/network.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct TcpServer {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 81 |     listener: TcpListener,
[INFO] [stdout] 82 |     address: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]    --> src/stdlib/network.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct UdpSocketWrapper {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 112 |     socket: UdpSocket,
[INFO] [stdout] 113 |     address: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_index` is never read
[INFO] [stdout]    --> src/time_travel/mod.rs:406:5
[INFO] [stdout]     |
[INFO] [stdout] 405 | pub struct ReplaySession<'a> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 406 |     start_index: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/time_travel/mod.rs:342:24
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn replay_from(&mut self, snapshot_id: usize) -> Result<ReplaySession, TimeTravelError> {
[INFO] [stdout]     |                        ^^^^^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn replay_from(&mut self, snapshot_id: usize) -> Result<ReplaySession<'_>, TimeTravelError> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.28s
[INFO] running `Command { std: "docker" "inspect" "5c86c8c6a62507dff1348ce16fe10c86d24ea107488ad33251a162c79db203fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c86c8c6a62507dff1348ce16fe10c86d24ea107488ad33251a162c79db203fc", kill_on_drop: false }`
[INFO] [stdout] 5c86c8c6a62507dff1348ce16fe10c86d24ea107488ad33251a162c79db203fc
