[INFO] cloning repository https://github.com/ukaushik-98/async-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ukaushik-98/async-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fukaushik-98%2Fasync-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fukaushik-98%2Fasync-playground'... 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[INFO] started tweaking git repo https://github.com/ukaushik-98/async-playground [INFO] finished tweaking git repo https://github.com/ukaushik-98/async-playground [INFO] tweaked toml for git repo https://github.com/ukaushik-98/async-playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ukaushik-98/async-playground on toolchain 8365fcb2b840c95eeb0bc377af8bd498fad22245 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ukaushik-98/async-playground 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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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_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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 578e9099b758a8ffd718989409961c8180426b2320090ebdcffd65ac9441c322 [INFO] running `Command { std: "docker" "start" "-a" "578e9099b758a8ffd718989409961c8180426b2320090ebdcffd65ac9441c322", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "578e9099b758a8ffd718989409961c8180426b2320090ebdcffd65ac9441c322", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "578e9099b758a8ffd718989409961c8180426b2320090ebdcffd65ac9441c322", kill_on_drop: false }` [INFO] [stdout] 578e9099b758a8ffd718989409961c8180426b2320090ebdcffd65ac9441c322 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 27de46ac3d44ee675679fca984af34cd4df33f433c27836040cc8d1bbdf11f87 [INFO] running `Command { std: "docker" "start" "-a" "27de46ac3d44ee675679fca984af34cd4df33f433c27836040cc8d1bbdf11f87", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking utf8parse v0.2.2 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking is_terminal_polyfill v1.70.1 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Checking anstyle v1.0.10 [INFO] [stderr] Checking anstyle-query v1.1.2 [INFO] [stderr] Checking colorchoice v1.0.3 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking clap_lex v0.7.4 [INFO] [stderr] Checking anstyle-parse v0.2.6 [INFO] [stderr] Checking strsim v0.11.1 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Checking bytes v1.9.0 [INFO] [stderr] Checking tower-service v0.3.3 [INFO] [stderr] Checking sync_wrapper v1.0.2 [INFO] [stderr] Checking tower-layer v0.3.3 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking anstream v0.6.18 [INFO] [stderr] Checking tracing-core v0.1.33 [INFO] [stderr] Checking clap_builder v4.5.26 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Compiling syn v2.0.96 [INFO] [stderr] Checking mio v1.0.3 [INFO] [stderr] Checking socket2 v0.5.8 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling clap_derive v4.5.24 [INFO] [stderr] Checking tokio v1.43.0 [INFO] [stderr] Checking clap v4.5.26 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking async-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `runner2` [INFO] [stdout] --> src/lifetimes/mod.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use runner::{runner, runner2, runner3}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::task` [INFO] [stdout] --> src/lifetimes/ref_users.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use tokio::task; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `future::Future` and `time::Duration` [INFO] [stdout] --> src/lifetimes/spawn.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{future::Future, rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::sleep` [INFO] [stdout] --> src/lifetimes/spawn.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use tokio::time::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt::Debug` and `rc::Rc` [INFO] [stdout] --> src/send_sync/implicit_type.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> src/tower_impl/mod.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `runner2` [INFO] [stdout] --> src/lifetimes/mod.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use runner::{runner, runner2, runner3}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::task` [INFO] [stdout] --> src/lifetimes/ref_users.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use tokio::task; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `future::Future` and `time::Duration` [INFO] [stdout] --> src/lifetimes/spawn.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{future::Future, rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::sleep` [INFO] [stdout] --> src/lifetimes/spawn.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use tokio::time::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt::Debug` and `rc::Rc` [INFO] [stdout] --> src/send_sync/implicit_type.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> src/tower_impl/mod.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{rc::Rc, time::Duration}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/ref_users.rs:36:43 [INFO] [stdout] | [INFO] [stdout] 36 | pub async fn runc>(x: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/ref_users.rs:36:43 [INFO] [stdout] | [INFO] [stdout] 36 | pub async fn runc>(x: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/ref_users.rs:38:53 [INFO] [stdout] | [INFO] [stdout] 38 | pub async fn foo<'a, T: Send + std::fmt::Debug>(mut x: &'a mut T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lifetimes/ref_users.rs:38:49 [INFO] [stdout] | [INFO] [stdout] 38 | pub async fn foo<'a, T: Send + std::fmt::Debug>(mut x: &'a mut T) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/ref_users.rs:38:53 [INFO] [stdout] | [INFO] [stdout] 38 | pub async fn foo<'a, T: Send + std::fmt::Debug>(mut x: &'a mut T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lifetimes/ref_users.rs:38:49 [INFO] [stdout] | [INFO] [stdout] 38 | pub async fn foo<'a, T: Send + std::fmt::Debug>(mut x: &'a mut T) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/spawn.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | let x = a; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lifetimes/spawn.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let y = x.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/spawn.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | let x = a; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `names` [INFO] [stdout] --> src/lifetimes/mod.rs:69:22 [INFO] [stdout] | [INFO] [stdout] 69 | async fn garbage<'a>(names: &'a Vec<&String>) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_names` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lifetimes/spawn.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let y = x.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lifetimes/mod.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let t = task::spawn(async { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lifetimes/mod.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | let y = &x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/implicit_type.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let x = create_t::().await; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let x = create_vec::<'a, T>(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `names` [INFO] [stdout] --> src/lifetimes/mod.rs:69:22 [INFO] [stdout] | [INFO] [stdout] 69 | async fn garbage<'a>(names: &'a Vec<&String>) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_names` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let x = foo2::().await; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lifetimes/mod.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let t = task::spawn(async { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lifetimes/mod.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | let y = &x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/implicit_type.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let x = create_t::().await; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let x = create_vec::<'a, T>(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let x = foo2::().await; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/spawn.rs:16:18 [INFO] [stdout] | [INFO] [stdout] 16 | fn send_check(x: T) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/implicit_type.rs:12:20 [INFO] [stdout] | [INFO] [stdout] 12 | fn static_check(x: T) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:35:31 [INFO] [stdout] | [INFO] [stdout] 35 | fn foo_send<'a, T: Send + 'a>(x: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetimes/spawn.rs:16:18 [INFO] [stdout] | [INFO] [stdout] 16 | fn send_check(x: T) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/implicit_type.rs:12:20 [INFO] [stdout] | [INFO] [stdout] 12 | fn static_check(x: T) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | async fn foo<'a, T>() -> T [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fooRc` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn fooRc() -> Rc { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_check` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn send_check(x: T) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo2` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:22:10 [INFO] [stdout] | [INFO] [stdout] 22 | async fn foo2<'a, T>(x: T) -> T [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo3` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:36:10 [INFO] [stdout] | [INFO] [stdout] 36 | async fn foo3() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/send_sync/mod.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | async fn foo() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_vec` is never used [INFO] [stdout] --> src/send_sync/mod.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn create_vec<'a, T>() -> &'a T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo2` is never used [INFO] [stdout] --> src/send_sync/mod.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | async fn foo2<'a, T>() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo_send` is never used [INFO] [stdout] --> src/send_sync/mod.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn foo_send<'a, T: Send + 'a>(x: T) {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/send_sync/mod.rs:37:10 [INFO] [stdout] | [INFO] [stdout] 37 | async fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `baz` is never used [INFO] [stdout] --> src/services/mod.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | async fn baz() {} [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/services/mod.rs:52:10 [INFO] [stdout] | [INFO] [stdout] 52 | async fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Request` is never constructed [INFO] [stdout] --> src/tower_impl/mod.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Request<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Request<'a> { [INFO] [stdout] | -------------------- associated function in this implementation [INFO] [stdout] 12 | fn new(x: &'a String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Response` is never constructed [INFO] [stdout] --> src/tower_impl/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct Response<'a>(&'a str); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `into_body` are never used [INFO] [stdout] --> src/tower_impl/mod.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl<'a> Response<'a> { [INFO] [stdout] | --------------------- associated items in this implementation [INFO] [stdout] 18 | fn new(body: &'a str) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn into_body(self) -> &'a str { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `static_check` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn static_check(x: T) -> T [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handle` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:33:10 [INFO] [stdout] | [INFO] [stdout] 33 | async fn handle<'a>(request: Request<'a>) -> Result, BoxError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `runner` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | async fn runner<'a>() -> Result<(), BoxError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lifetimes/arc_users.rs:9:42 [INFO] [stdout] | [INFO] [stdout] 9 | pub async fn create_users(names: Arc>) -> Vec { [INFO] [stdout] | ^^^^ ---- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided 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] 9 | pub async fn create_users(names: Arc>) -> Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fooRc` should have a snake case name [INFO] [stdout] --> src/lifetimes/spawn.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn fooRc() -> Rc { [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `foo_rc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/send_sync/mod.rs:35:31 [INFO] [stdout] | [INFO] [stdout] 35 | fn foo_send<'a, T: Send + 'a>(x: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | async fn foo<'a, T>() -> T [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fooRc` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn fooRc() -> Rc { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_check` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn send_check(x: T) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo2` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:22:10 [INFO] [stdout] | [INFO] [stdout] 22 | async fn foo2<'a, T>(x: T) -> T [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo3` is never used [INFO] [stdout] --> src/lifetimes/spawn.rs:36:10 [INFO] [stdout] | [INFO] [stdout] 36 | async fn foo3() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/send_sync/mod.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | async fn foo() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_vec` is never used [INFO] [stdout] --> src/send_sync/mod.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn create_vec<'a, T>() -> &'a T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo2` is never used [INFO] [stdout] --> src/send_sync/mod.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | async fn foo2<'a, T>() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo_send` is never used [INFO] [stdout] --> src/send_sync/mod.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn foo_send<'a, T: Send + 'a>(x: T) {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/send_sync/mod.rs:37:10 [INFO] [stdout] | [INFO] [stdout] 37 | async fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `baz` is never used [INFO] [stdout] --> src/services/mod.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | async fn baz() {} [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/services/mod.rs:52:10 [INFO] [stdout] | [INFO] [stdout] 52 | async fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Request` is never constructed [INFO] [stdout] --> src/tower_impl/mod.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Request<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Request<'a> { [INFO] [stdout] | -------------------- associated function in this implementation [INFO] [stdout] 12 | fn new(x: &'a String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Response` is never constructed [INFO] [stdout] --> src/tower_impl/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct Response<'a>(&'a str); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `into_body` are never used [INFO] [stdout] --> src/tower_impl/mod.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl<'a> Response<'a> { [INFO] [stdout] | --------------------- associated items in this implementation [INFO] [stdout] 18 | fn new(body: &'a str) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn into_body(self) -> &'a str { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `static_check` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn static_check(x: T) -> T [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handle` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:33:10 [INFO] [stdout] | [INFO] [stdout] 33 | async fn handle<'a>(request: Request<'a>) -> Result, BoxError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `runner` is never used [INFO] [stdout] --> src/tower_impl/mod.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | async fn runner<'a>() -> Result<(), BoxError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lifetimes/arc_users.rs:9:42 [INFO] [stdout] | [INFO] [stdout] 9 | pub async fn create_users(names: Arc>) -> Vec { [INFO] [stdout] | ^^^^ ---- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided 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] 9 | pub async fn create_users(names: Arc>) -> Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fooRc` should have a snake case name [INFO] [stdout] --> src/lifetimes/spawn.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn fooRc() -> Rc { [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `foo_rc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `send_sync::implicit_type::foo` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | send_sync::implicit_type::foo, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `send_sync::implicit_type::foo` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | send_sync::implicit_type::foo, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.91s [INFO] running `Command { std: "docker" "inspect" "27de46ac3d44ee675679fca984af34cd4df33f433c27836040cc8d1bbdf11f87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27de46ac3d44ee675679fca984af34cd4df33f433c27836040cc8d1bbdf11f87", kill_on_drop: false }` [INFO] [stdout] 27de46ac3d44ee675679fca984af34cd4df33f433c27836040cc8d1bbdf11f87