[INFO] fetching crate samotop-async-trait 0.2.1...
[INFO] building samotop-async-trait-0.2.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate samotop-async-trait 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate samotop-async-trait 0.2.1
[INFO] finished tweaking crates.io crate samotop-async-trait 0.2.1
[INFO] tweaked toml for crates.io crate samotop-async-trait 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate samotop-async-trait 0.2.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c1e9f41b7e6fda805630eefacda552645964d11c785ac16b8fa1199a29f8ea5
[INFO] running `Command { std: "docker" "start" "-a" "3c1e9f41b7e6fda805630eefacda552645964d11c785ac16b8fa1199a29f8ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c1e9f41b7e6fda805630eefacda552645964d11c785ac16b8fa1199a29f8ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c1e9f41b7e6fda805630eefacda552645964d11c785ac16b8fa1199a29f8ea5", kill_on_drop: false }`
[INFO] [stdout] 3c1e9f41b7e6fda805630eefacda552645964d11c785ac16b8fa1199a29f8ea5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b7d1c639a7695b8534cdc91b78488744d09593ad336268bc9dfad03146c7bc
[INFO] running `Command { std: "docker" "start" "-a" "27b7d1c639a7695b8534cdc91b78488744d09593ad336268bc9dfad03146c7bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling samotop-async-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `HasAsyncLifetime` is never constructed
[INFO] [stdout]  --> src/lifetime.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct HasAsyncLifetime(bool);
[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 `ReplaceReceiver` is never constructed
[INFO] [stdout]   --> src/receiver.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct ReplaceReceiver {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan` is never used
[INFO] [stdout]  --> src/respan.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) fn respan<T>(node: &T, span: Span) -> T
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `self_ty`, `self_to_qself_type`, `self_to_qself_expr`, `self_to_qself`, `self_to_expr_path`, and `visit_token_stream` are never used
[INFO] [stdout]    --> src/receiver.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout]  71 | impl ReplaceReceiver {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout]  72 |     fn self_ty(&self, span: Span) -> Type {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  76 |     fn self_to_qself_type(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn self_to_qself_expr(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn self_to_qself(&self, qself: &mut Option<QSelf>, path: &mut Path, include_as_trait: bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn self_to_expr_path(&self, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn visit_token_stream(&self, tokens: &mut TokenStream) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prepend_underscore_to_self` is never used
[INFO] [stdout]    --> src/receiver.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn prepend_underscore_to_self(ident: &mut Ident) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan_tokens` is never used
[INFO] [stdout]   --> src/respan.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn respan_tokens(tokens: TokenStream, span: Span) -> TokenStream {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "27b7d1c639a7695b8534cdc91b78488744d09593ad336268bc9dfad03146c7bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b7d1c639a7695b8534cdc91b78488744d09593ad336268bc9dfad03146c7bc", kill_on_drop: false }`
[INFO] [stdout] 27b7d1c639a7695b8534cdc91b78488744d09593ad336268bc9dfad03146c7bc
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a9c2b7a7753956a80504f341de1146d6bcc03bb1fb20aee3eaad35e4fb609b5
[INFO] running `Command { std: "docker" "start" "-a" "3a9c2b7a7753956a80504f341de1146d6bcc03bb1fb20aee3eaad35e4fb609b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling toml_writer v1.0.3
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling serde_spanned v1.0.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling toml v0.9.7
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling samotop-async-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `HasAsyncLifetime` is never constructed
[INFO] [stdout]  --> src/lifetime.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct HasAsyncLifetime(bool);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan` is never used
[INFO] [stdout]  --> src/respan.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) fn respan<T>(node: &T, span: Span) -> T
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan_tokens` is never used
[INFO] [stdout]   --> src/respan.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn respan_tokens(tokens: TokenStream, span: Span) -> TokenStream {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReplaceReceiver` is never constructed
[INFO] [stdout]   --> src/receiver.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct ReplaceReceiver {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `self_ty`, `self_to_qself_type`, `self_to_qself_expr`, `self_to_qself`, `self_to_expr_path`, and `visit_token_stream` are never used
[INFO] [stdout]    --> src/receiver.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout]  71 | impl ReplaceReceiver {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout]  72 |     fn self_ty(&self, span: Span) -> Type {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  76 |     fn self_to_qself_type(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn self_to_qself_expr(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn self_to_qself(&self, qself: &mut Option<QSelf>, path: &mut Path, include_as_trait: bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn self_to_expr_path(&self, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn visit_token_stream(&self, tokens: &mut TokenStream) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prepend_underscore_to_self` is never used
[INFO] [stdout]    --> src/receiver.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn prepend_underscore_to_self(ident: &mut Ident) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling trybuild v1.0.111
[INFO] [stdout] warning: struct `HasAsyncLifetime` is never constructed
[INFO] [stdout]  --> src/lifetime.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct HasAsyncLifetime(bool);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan` is never used
[INFO] [stdout]  --> src/respan.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) fn respan<T>(node: &T, span: Span) -> T
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respan_tokens` is never used
[INFO] [stdout]   --> src/respan.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn respan_tokens(tokens: TokenStream, span: Span) -> TokenStream {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReplaceReceiver` is never constructed
[INFO] [stdout]   --> src/receiver.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct ReplaceReceiver {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `self_ty`, `self_to_qself_type`, `self_to_qself_expr`, `self_to_qself`, `self_to_expr_path`, and `visit_token_stream` are never used
[INFO] [stdout]    --> src/receiver.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout]  71 | impl ReplaceReceiver {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout]  72 |     fn self_ty(&self, span: Span) -> Type {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  76 |     fn self_to_qself_type(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn self_to_qself_expr(&self, qself: &mut Option<QSelf>, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn self_to_qself(&self, qself: &mut Option<QSelf>, path: &mut Path, include_as_trait: bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn self_to_expr_path(&self, path: &mut Path) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn visit_token_stream(&self, tokens: &mut TokenStream) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prepend_underscore_to_self` is never used
[INFO] [stdout]    --> src/receiver.rs:294:4
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn prepend_underscore_to_self(ident: &mut Ident) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `async_trait_nightly_testing`
[INFO] [stdout]  --> tests/test.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(async_trait_nightly_testing, feature(specialization, const_generics))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(async_trait_nightly_testing)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(async_trait_nightly_testing)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `async_trait_nightly_testing`
[INFO] [stdout]    --> tests/test.rs:275:7
[INFO] [stdout]     |
[INFO] [stdout] 275 | #[cfg(async_trait_nightly_testing)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(async_trait_nightly_testing)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(async_trait_nightly_testing)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `async_trait_nightly_testing`
[INFO] [stdout]    --> tests/test.rs:631:7
[INFO] [stdout]     |
[INFO] [stdout] 631 | #[cfg(async_trait_nightly_testing)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(async_trait_nightly_testing)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(async_trait_nightly_testing)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> tests/test.rs:799:20
[INFO] [stdout]     |
[INFO] [stdout] 799 |     impl Trait for (dyn Fn(u8) + Send + Sync) {
[INFO] [stdout]     |                    ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 799 -     impl Trait for (dyn Fn(u8) + Send + Sync) {
[INFO] [stdout] 799 +     impl Trait for dyn Fn(u8) + Send + Sync {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `UnsafeTraitPubCrate` is never used
[INFO] [stdout]    --> tests/test.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub(crate) unsafe trait UnsafeTraitPubCrate {}
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]     --> tests/test.rs:1052:30
[INFO] [stdout]      |
[INFO] [stdout] 1049 |     #[async_trait]
[INFO] [stdout]      |     -------------- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 1052 |         async fn f(&self) -> &str;
[INFO] [stdout]      |                              ^^^^ the same 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: consistently use `'life0`
[INFO] [stdout]      |
[INFO] [stdout] 1052 |         async fn f(&self) -> &'life0 str;
[INFO] [stdout]      |                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]     --> tests/test.rs:1065:30
[INFO] [stdout]      |
[INFO] [stdout] 1062 |     #[async_trait]
[INFO] [stdout]      |     -------------- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 1065 |         async fn f(&self) -> &str {
[INFO] [stdout]      |                              ^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'life0`
[INFO] [stdout]      |
[INFO] [stdout] 1065 |         async fn f(&self) -> &'life0 str {
[INFO] [stdout]      |                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Issue11` is never used
[INFO] [stdout]    --> tests/test.rs:200:11
[INFO] [stdout]     |
[INFO] [stdout] 200 |     trait Issue11 {
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Struct` is never constructed
[INFO] [stdout]    --> tests/test.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 |     struct Struct;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]    --> tests/test.rs:217:11
[INFO] [stdout]     |
[INFO] [stdout] 217 |     trait Trait {}
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Issue15` is never used
[INFO] [stdout]    --> tests/test.rs:220:11
[INFO] [stdout]     |
[INFO] [stdout] 220 |     trait Issue15 {
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `T1` is never used
[INFO] [stdout]    --> tests/test.rs:920:11
[INFO] [stdout]     |
[INFO] [stdout] 920 |     trait T1 {
[INFO] [stdout]     |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]    --> tests/test.rs:935:12
[INFO] [stdout]     |
[INFO] [stdout] 935 |     struct Foo;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]     --> tests/test.rs:1001:11
[INFO] [stdout]      |
[INFO] [stdout] 1001 |     trait Trait {
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]     --> tests/test.rs:1016:11
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     trait Trait<T = ()> {
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Elided` is never used
[INFO] [stdout]     --> tests/test.rs:1088:10
[INFO] [stdout]      |
[INFO] [stdout] 1088 |     type Elided<'a> = &'a usize;
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Test` is never used
[INFO] [stdout]     --> tests/test.rs:1091:11
[INFO] [stdout]      |
[INFO] [stdout] 1091 |     trait Test {
[INFO] [stdout]      |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Issue1` is never used
[INFO] [stdout]    --> tests/test.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |     trait Issue1 {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]    --> tests/test.rs:784:11
[INFO] [stdout]     |
[INFO] [stdout] 784 |     trait Trait {
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Str` is never constructed
[INFO] [stdout]    --> tests/test.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     struct Str<'a>(&'a str);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait1` is never used
[INFO] [stdout]    --> tests/test.rs:328:11
[INFO] [stdout]     |
[INFO] [stdout] 328 |     trait Trait1<'a> {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait2` is never used
[INFO] [stdout]    --> tests/test.rs:343:11
[INFO] [stdout]     |
[INFO] [stdout] 343 |     trait Trait2 {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait3` is never used
[INFO] [stdout]    --> tests/test.rs:353:11
[INFO] [stdout]     |
[INFO] [stdout] 353 |     trait Trait3<'a, 'b> {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]    --> tests/test.rs:262:12
[INFO] [stdout]     |
[INFO] [stdout] 262 |     struct S {}
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `UnsafeTraitPrivate` is never used
[INFO] [stdout]    --> tests/test.rs:149:14
[INFO] [stdout]     |
[INFO] [stdout] 149 | unsafe trait UnsafeTraitPrivate {}
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]     --> tests/test.rs:1017:30
[INFO] [stdout]      |
[INFO] [stdout] 1015 |     #[async_trait]
[INFO] [stdout]      |     -------------- the lifetime is named here
[INFO] [stdout] 1016 |     trait Trait<T = ()> {
[INFO] [stdout] 1017 |         async fn f(&self) -> &str
[INFO] [stdout]      |                              ^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'life0`
[INFO] [stdout]      |
[INFO] [stdout] 1017 |         async fn f(&self) -> &'life0 str
[INFO] [stdout]      |                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/test.rs:591:22
[INFO] [stdout]     |
[INFO] [stdout] 591 |     pub struct Tuple(u8);
[INFO] [stdout]     |                ----- ^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Issue17` is never used
[INFO] [stdout]    --> tests/test.rs:230:11
[INFO] [stdout]     |
[INFO] [stdout] 230 |     trait Issue17 {
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Struct` is never constructed
[INFO] [stdout]    --> tests/test.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 234 |     struct Struct {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.29s
[INFO] running `Command { std: "docker" "inspect" "3a9c2b7a7753956a80504f341de1146d6bcc03bb1fb20aee3eaad35e4fb609b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a9c2b7a7753956a80504f341de1146d6bcc03bb1fb20aee3eaad35e4fb609b5", kill_on_drop: false }`
[INFO] [stdout] 3a9c2b7a7753956a80504f341de1146d6bcc03bb1fb20aee3eaad35e4fb609b5
