[INFO] fetching crate ftswarm 0.2.5...
[INFO] testing ftswarm-0.2.5 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate ftswarm 0.2.5 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ftswarm 0.2.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ftswarm 0.2.5
[INFO] tweaked toml for crates.io crate ftswarm 0.2.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ftswarm 0.2.5 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ftswarm 0.2.5 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.3.0
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded ftswarm_serial v0.2.5
[INFO] [stderr]   Downloaded ftswarm_macros v0.2.5
[INFO] [stderr]   Downloaded ftswarm_proto v0.2.5
[INFO] [stderr]   Downloaded unescaper v0.1.4
[INFO] [stderr]   Downloaded rand_chacha v0.9.0-alpha.0
[INFO] [stderr]   Downloaded rand_core v0.9.0-alpha.0
[INFO] [stderr]   Downloaded zerocopy v0.8.0-alpha.5
[INFO] [stderr]   Downloaded rand v0.9.0-alpha.0
[INFO] [stderr]   Downloaded tokio v1.36.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.0-alpha.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2a41087c66dfbc135566bdb7e797c243289ec6b22a7480fb04f029425291a51
[INFO] running `Command { std: "docker" "start" "-a" "b2a41087c66dfbc135566bdb7e797c243289ec6b22a7480fb04f029425291a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2a41087c66dfbc135566bdb7e797c243289ec6b22a7480fb04f029425291a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a41087c66dfbc135566bdb7e797c243289ec6b22a7480fb04f029425291a51", kill_on_drop: false }`
[INFO] [stdout] b2a41087c66dfbc135566bdb7e797c243289ec6b22a7480fb04f029425291a51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8131cce0decf27fdb6313a7f8afe36bdc71e9c7b2675bde92707d523dab7bf
[INFO] running `Command { std: "docker" "start" "-a" "6f8131cce0decf27fdb6313a7f8afe36bdc71e9c7b2675bde92707d523dab7bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.5
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling strum v0.26.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling rand_core v0.9.0-alpha.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling rand_chacha v0.9.0-alpha.0
[INFO] [stderr]    Compiling rand v0.9.0-alpha.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling ftswarm_macros v0.2.5
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling unescaper v0.1.4
[INFO] [stderr]    Compiling serialport v4.3.0
[INFO] [stderr]    Compiling ftswarm_serial v0.2.5
[INFO] [stderr]    Compiling ftswarm_proto v0.2.5
[INFO] [stderr]    Compiling ftswarm v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<T> {
[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] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<'_, T> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.76s
[INFO] running `Command { std: "docker" "inspect" "6f8131cce0decf27fdb6313a7f8afe36bdc71e9c7b2675bde92707d523dab7bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8131cce0decf27fdb6313a7f8afe36bdc71e9c7b2675bde92707d523dab7bf", kill_on_drop: false }`
[INFO] [stdout] 6f8131cce0decf27fdb6313a7f8afe36bdc71e9c7b2675bde92707d523dab7bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fa5ddcbbfe6fa0146a4df3830def5fe67146fbb894315cbe1abcb6b54504c2a
[INFO] running `Command { std: "docker" "start" "-a" "9fa5ddcbbfe6fa0146a4df3830def5fe67146fbb894315cbe1abcb6b54504c2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling ftswarm_serial v0.2.5
[INFO] [stderr]    Compiling ftswarm v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling anstream v0.6.13
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<T> {
[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] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<'_, T> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     led1.lock().await.set_color(LedColor::blue()).await?;
[INFO] [stdout]    |                 ^^^^^ `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-2272784504074812808.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     led1.lock().await.set_color(LedColor::blue()).await?;
[INFO] [stdout] 46 +     led1.lock().set_color(LedColor::blue()).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |     led2.lock().await.set_color(LedColor::cyan()).await?;
[INFO] [stdout]    |                 ^^^^^ `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-11993592202428561337.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     led2.lock().await.set_color(LedColor::cyan()).await?;
[INFO] [stdout] 47 +     led2.lock().set_color(LedColor::cyan()).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut switch_state = switch.lock().await.value;
[INFO] [stdout]    |                                          ^^^^^ `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-10042291368789272835.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 49 -     let mut switch_state = switch.lock().await.value;
[INFO] [stdout] 49 +     let mut switch_state = switch.lock().value;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:51:35
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let value = switch.lock().await.value;
[INFO] [stdout]    |                                   ^^^^^ `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Digital>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-9502898237596964014.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 51 -         let value = switch.lock().await.value;
[INFO] [stdout] 51 +         let value = switch.lock().value;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:59:25
[INFO] [stdout]    |
[INFO] [stdout] 59 |             led1.lock().await.set_color(color.clone()).await?;
[INFO] [stdout]    |                         ^^^^^ `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-17803069662943836547.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 59 -             led1.lock().await.set_color(color.clone()).await?;
[INFO] [stdout] 59 +             led1.lock().set_color(color.clone()).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]   --> examples/hello_world.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |             led2.lock().await.set_color(color).await?;
[INFO] [stdout]    |                         ^^^^^ `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` is not a future
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Future` is not implemented for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>`
[INFO] [stdout]    = note: Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>> must be a future or must implement `IntoFuture` to be awaited
[INFO] [stdout]    = note: required for `Result<MutexGuard<'_, Box<Led>>, PoisonError<MutexGuard<'_, ...>>>` to implement `IntoFuture`
[INFO] [stdout]    = note: the full name for the type has been written to '/opt/rustwide/target/debug/examples/hello_world-6e3e91441484ac63.long-type-17693652365547464321.txt'
[INFO] [stdout]    = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: remove the `.await`
[INFO] [stdout]    |
[INFO] [stdout] 60 -             led2.lock().await.set_color(color).await?;
[INFO] [stdout] 60 +             led2.lock().set_color(color).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ftswarm` (example "hello_world") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<T> {
[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] 46 | async fn lock<T>(mutex: &Mutex<T>) -> std::sync::MutexGuard<'_, T> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9fa5ddcbbfe6fa0146a4df3830def5fe67146fbb894315cbe1abcb6b54504c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa5ddcbbfe6fa0146a4df3830def5fe67146fbb894315cbe1abcb6b54504c2a", kill_on_drop: false }`
[INFO] [stdout] 9fa5ddcbbfe6fa0146a4df3830def5fe67146fbb894315cbe1abcb6b54504c2a