[INFO] fetching crate tokio-metrics-collector 0.2.3...
[INFO] testing tokio-metrics-collector-0.2.3 against nightly-2024-10-28 for randomize-layout
[INFO] extracting crate tokio-metrics-collector 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate tokio-metrics-collector 0.2.3 on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-metrics-collector 0.2.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-metrics-collector 0.2.3
[INFO] tweaked toml for crates.io crate tokio-metrics-collector 0.2.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate tokio-metrics-collector 0.2.3 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" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper-util v0.1.8
[INFO] [stderr]   Downloaded tokio-metrics v0.3.1
[INFO] [stderr]   Downloaded axum-core v0.4.4
[INFO] [stderr]   Downloaded axum v0.7.6
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "5d1f10fa19870b4e11a3b313a9b34ff47595aeea69d1043f4c34b189a04f0ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d1f10fa19870b4e11a3b313a9b34ff47595aeea69d1043f4c34b189a04f0ff4", kill_on_drop: false }`
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[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65b2dff4f01ca95aaa3ef999e02f55ecb1f50bd4d50fa2b4b54765c14d25c799
[INFO] running `Command { std: "docker" "start" "-a" "65b2dff4f01ca95aaa3ef999e02f55ecb1f50bd4d50fa2b4b54765c14d25c799", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling prometheus v0.13.4
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-stream v0.1.16
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tokio-metrics v0.3.1
[INFO] [stderr]    Compiling tokio-metrics-collector v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tokio_unstable`
[INFO] [stdout]   --> src/lib.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     all(tokio_unstable, feature = "rt"),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[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(tokio_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: `tokio_unstable`
[INFO] [stdout]    --> src/lib.rs:99:23
[INFO] [stdout]     |
[INFO] [stdout] 99  |               #[cfg(all(tokio_unstable, feature = "rt"))]
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 | / cfg_rt! {
[INFO] [stdout] 107 | |     mod runtime;
[INFO] [stdout] 108 | |     pub use runtime::default_collector as default_runtime_collector;
[INFO] [stdout] 109 | |     pub use runtime::RuntimeCollector;
[INFO] [stdout] 110 | | }
[INFO] [stdout]     | |_- in this macro invocation
[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(tokio_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: this warning originates in the macro `cfg_rt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.73s
[INFO] running `Command { std: "docker" "inspect" "65b2dff4f01ca95aaa3ef999e02f55ecb1f50bd4d50fa2b4b54765c14d25c799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b2dff4f01ca95aaa3ef999e02f55ecb1f50bd4d50fa2b4b54765c14d25c799", kill_on_drop: false }`
[INFO] [stdout] 65b2dff4f01ca95aaa3ef999e02f55ecb1f50bd4d50fa2b4b54765c14d25c799
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e863527dadd1531dfe0617260885f2f2c037b8109a30b573e65b2d99df74979
[INFO] running `Command { std: "docker" "start" "-a" "3e863527dadd1531dfe0617260885f2f2c037b8109a30b573e65b2d99df74979", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling bytes v1.7.2
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[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling thread_local v1.1.8
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[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
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[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling async-trait v0.1.82
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling prometheus v0.13.4
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling axum-core v0.4.4
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling tokio-stream v0.1.16
[INFO] [stderr]    Compiling hyper v1.4.1
[INFO] [stderr]    Compiling tower v0.5.1
[INFO] [stderr]    Compiling tokio-metrics v0.3.1
[INFO] [stderr]    Compiling tokio-metrics-collector v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tokio_unstable`
[INFO] [stdout]   --> src/lib.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     all(tokio_unstable, feature = "rt"),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[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(tokio_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: `tokio_unstable`
[INFO] [stdout]    --> src/lib.rs:99:23
[INFO] [stdout]     |
[INFO] [stdout] 99  |               #[cfg(all(tokio_unstable, feature = "rt"))]
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 | / cfg_rt! {
[INFO] [stdout] 107 | |     mod runtime;
[INFO] [stdout] 108 | |     pub use runtime::default_collector as default_runtime_collector;
[INFO] [stdout] 109 | |     pub use runtime::RuntimeCollector;
[INFO] [stdout] 110 | | }
[INFO] [stdout]     | |_- in this macro invocation
[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(tokio_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: this warning originates in the macro `cfg_rt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hyper-util v0.1.8
[INFO] [stderr]    Compiling axum v0.7.6
[INFO] [stdout] warning: unexpected `cfg` condition name: `tokio_unstable`
[INFO] [stdout]   --> src/lib.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     all(tokio_unstable, feature = "rt"),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[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(tokio_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: `tokio_unstable`
[INFO] [stdout]    --> src/lib.rs:99:23
[INFO] [stdout]     |
[INFO] [stdout] 99  |               #[cfg(all(tokio_unstable, feature = "rt"))]
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 | / cfg_rt! {
[INFO] [stdout] 107 | |     mod runtime;
[INFO] [stdout] 108 | |     pub use runtime::default_collector as default_runtime_collector;
[INFO] [stdout] 109 | |     pub use runtime::RuntimeCollector;
[INFO] [stdout] 110 | | }
[INFO] [stdout]     | |_- in this macro invocation
[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(tokio_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tokio_unstable)");` 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: this warning originates in the macro `cfg_rt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `default_runtime_collector` in crate `tokio_metrics_collector`
[INFO] [stdout]    --> examples/server.rs:13:38
[INFO] [stdout]     |
[INFO] [stdout] 13  |             tokio_metrics_collector::default_runtime_collector(),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `default_task_collector`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/task.rs:475:1
[INFO] [stdout]     |
[INFO] [stdout] 475 | pub fn default_collector() -> &'static TaskCollector {
[INFO] [stdout]     | ---------------------------------------------------- similarly named function `default_task_collector` defined here
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:108:43
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub use runtime::default_collector as default_runtime_collector;
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: the item is gated here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:106:1
[INFO] [stdout]     |
[INFO] [stdout] 106 | / cfg_rt! {
[INFO] [stdout] 107 | |     mod runtime;
[INFO] [stdout] 108 | |     pub use runtime::default_collector as default_runtime_collector;
[INFO] [stdout] 109 | |     pub use runtime::RuntimeCollector;
[INFO] [stdout] 110 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this error originates in the macro `cfg_rt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-metrics-collector` (example "server") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `monitor`
[INFO] [stdout]    --> src/task.rs:486:13
[INFO] [stdout]     |
[INFO] [stdout] 486 |         let monitor = tokio_metrics::TaskMonitor::new();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_monitor`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3e863527dadd1531dfe0617260885f2f2c037b8109a30b573e65b2d99df74979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e863527dadd1531dfe0617260885f2f2c037b8109a30b573e65b2d99df74979", kill_on_drop: false }`
[INFO] [stdout] 3e863527dadd1531dfe0617260885f2f2c037b8109a30b573e65b2d99df74979
