[INFO] cloning repository https://github.com/elpiel/repository-trait-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elpiel/repository-trait-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpiel%2Frepository-trait-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpiel%2Frepository-trait-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be3d6be55f1ca61c97fd7421795b2dfa55a7204a
[INFO] checking elpiel/repository-trait-rs against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpiel%2Frepository-trait-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/elpiel/repository-trait-rs
[INFO] finished tweaking git repo https://github.com/elpiel/repository-trait-rs
[INFO] tweaked toml for git repo https://github.com/elpiel/repository-trait-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/elpiel/repository-trait-rs on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/elpiel/repository-trait-rs 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" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "fetch" "--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]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking elpiel/repository-trait-rs against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpiel%2Frepository-trait-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/elpiel/repository-trait-rs
[INFO] finished tweaking git repo https://github.com/elpiel/repository-trait-rs
[INFO] tweaked toml for git repo https://github.com/elpiel/repository-trait-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/elpiel/repository-trait-rs on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/elpiel/repository-trait-rs 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" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded try_future v0.1.3
[INFO] [stderr]   Downloaded tokio-uds v0.2.5
[INFO] [stderr]   Downloaded tokio-postgres v0.4.0-rc.2
[INFO] [stderr]   Downloaded tokio-tcp v0.1.3
[INFO] [stderr]   Downloaded tokio-reactor v0.1.9
[INFO] [stderr]   Downloaded futures v0.1.27
[INFO] [stderr]   Downloaded darling_macro v0.8.6
[INFO] [stderr]   Downloaded hmac v0.7.0
[INFO] [stderr]   Downloaded tokio-udp v0.1.3
[INFO] [stderr]   Downloaded bb8-postgres v0.3.0
[INFO] [stderr]   Downloaded derive_state_machine_future v0.2.0
[INFO] [stderr]   Downloaded tokio-fs v0.1.6
[INFO] [stderr]   Downloaded bb8 v0.3.0
[INFO] [stderr]   Downloaded opaque-debug v0.2.2
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded rent_to_own v0.1.0
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded darling v0.8.6
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.7
[INFO] [stderr]   Downloaded fallible-iterator v0.1.6
[INFO] [stderr]   Downloaded tokio-trace-core v0.1.0
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded postgres-protocol v0.4.0
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.6
[INFO] [stderr]   Downloaded tokio-io v0.1.12
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded tokio-timer v0.2.10
[INFO] [stderr]   Downloaded darling_core v0.8.6
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded tokio-sync v0.1.5
[INFO] [stderr]   Downloaded state_machine_future v0.2.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.14
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded tokio v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a
[INFO] running `Command { std: "docker" "start" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rent_to_own v0.1.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking try_future v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking hmac v0.7.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking bb8 v0.3.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking postgres-protocol v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.16
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling derive_state_machine_future v0.2.0
[INFO] [stderr]     Checking state_machine_future v0.2.0
[INFO] [stderr]     Checking tokio-postgres v0.4.0-rc.2
[INFO] [stderr]     Checking bb8-postgres v0.3.0
[INFO] [stderr]     Checking repository v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await, await_macro)]
[INFO] [stdout]   |                         ^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.38.0; see <https://github.com/rust-lang/rust/pull/62293> for more information
[INFO] [stdout]   = note: subsumed by `.await` syntax
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await, await_macro)]
[INFO] [stdout]   |                         ^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.38.0; see <https://github.com/rust-lang/rust/pull/62293> for more information
[INFO] [stdout]   = note: subsumed by `.await` syntax
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await, await_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await, await_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/domain.rs:9:40
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type RepositoryFuture<T> = Pin<Box<Future<Output=Result<T, RepositoryError>> + Send>>;
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type RepositoryFuture<T> = Pin<Box<dyn Future<Output=Result<T, RepositoryError>> + Send>>;
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/domain.rs:9:40
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type RepositoryFuture<T> = Pin<Box<Future<Output=Result<T, RepositoryError>> + Send>>;
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type RepositoryFuture<T> = Pin<Box<dyn Future<Output=Result<T, RepositoryError>> + Send>>;
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/application/handler.rs:9:40
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(channel_repository: &'a ChannelRepository) -> Self {
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(channel_repository: &'a dyn ChannelRepository) -> Self {
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/application/handler.rs:9:40
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(channel_repository: &'a ChannelRepository) -> Self {
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(channel_repository: &'a dyn ChannelRepository) -> Self {
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/infrastructure/persistence/channel.rs:89:23
[INFO] [stdout]    |
[INFO] [stdout] 89 |             .map_err(|err| RepositoryError::AlreadyExist)
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/infrastructure/persistence/channel.rs:89:23
[INFO] [stdout]    |
[INFO] [stdout] 89 |             .map_err(|err| RepositoryError::AlreadyExist)
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `repository` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `repository` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a", kill_on_drop: false }`
[INFO] [stdout] 63695367e468aee39f69cfbfe33dd186c69471688092abc7f56881ddb7edc07a
