[INFO] fetching crate tracing-forest 0.1.6...
[INFO] testing tracing-forest-0.1.6 against 1.75.0 for beta-1.76-1
[INFO] extracting crate tracing-forest 0.1.6 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate tracing-forest 0.1.6 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-forest 0.1.6
[INFO] finished tweaking crates.io crate tracing-forest 0.1.6
[INFO] tweaked toml for crates.io crate tracing-forest 0.1.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 713de4d7ca92c1fc325d0b048e0b736c63ae0ee3b888e38032a3d556a26353b4
[INFO] running `Command { std: "docker" "start" "-a" "713de4d7ca92c1fc325d0b048e0b736c63ae0ee3b888e38032a3d556a26353b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "713de4d7ca92c1fc325d0b048e0b736c63ae0ee3b888e38032a3d556a26353b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713de4d7ca92c1fc325d0b048e0b736c63ae0ee3b888e38032a3d556a26353b4", kill_on_drop: false }`
[INFO] [stdout] 713de4d7ca92c1fc325d0b048e0b736c63ae0ee3b888e38032a3d556a26353b4
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a64473e903ce3f39dc04c887cb556eacc2d4ab95a76d510b8ebe9f62cd9e5c7
[INFO] running `Command { std: "docker" "start" "-a" "4a64473e903ce3f39dc04c887cb556eacc2d4ab95a76d510b8ebe9f62cd9e5c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tracing-forest v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "4a64473e903ce3f39dc04c887cb556eacc2d4ab95a76d510b8ebe9f62cd9e5c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a64473e903ce3f39dc04c887cb556eacc2d4ab95a76d510b8ebe9f62cd9e5c7", kill_on_drop: false }`
[INFO] [stdout] 4a64473e903ce3f39dc04c887cb556eacc2d4ab95a76d510b8ebe9f62cd9e5c7
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c85443e44856112c4d8926b86baa6767eba4ba2458adcaea099415f0e790e2d
[INFO] running `Command { std: "docker" "start" "-a" "9c85443e44856112c4d8926b86baa6767eba4ba2458adcaea099415f0e790e2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling tracing-forest v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "9c85443e44856112c4d8926b86baa6767eba4ba2458adcaea099415f0e790e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c85443e44856112c4d8926b86baa6767eba4ba2458adcaea099415f0e790e2d", kill_on_drop: false }`
[INFO] [stdout] 9c85443e44856112c4d8926b86baa6767eba4ba2458adcaea099415f0e790e2d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d4c8c0b69ecf92f25a97bd21d8452d250d567cdfe38bcb0ba5c8277efadf261b
[INFO] running `Command { std: "docker" "start" "-a" "d4c8c0b69ecf92f25a97bd21d8452d250d567cdfe38bcb0ba5c8277efadf261b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_forest-992090f03ac57428)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/captured.rs (/opt/rustwide/target/debug/deps/captured-8a3fee0b8eeb819b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/demo.rs (/opt/rustwide/target/debug/deps/demo-6934899bb7cf0693)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/id.rs (/opt/rustwide/target/debug/deps/id-887b5f7b5a4ab3cf)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/set_global.rs (/opt/rustwide/target/debug/deps/set_global-302634f4cb59e8a7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/simulate_connections.rs (/opt/rustwide/target/debug/deps/simulate_connections-9ab724f1909c6b8d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/simulate_connections_blocking.rs (/opt/rustwide/target/debug/deps/simulate_connections_blocking-ef618eea5e24a82c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/spawned_tasks.rs (/opt/rustwide/target/debug/deps/spawned_tasks-7d982e75879ed69c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tag.rs (/opt/rustwide/target/debug/deps/tag-0fb95df23dbb77d1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing-forest
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - (line 198) ... FAILED
[INFO] [stdout] test src/tree/mod.rs - tree::Tree::span (line 173) ... FAILED
[INFO] [stdout] test src/tag.rs - tag (line 34) ... FAILED
[INFO] [stdout] test src/printer/mod.rs - printer::Formatter (line 18) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 49) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 208) ... FAILED
[INFO] [stdout] test src/tree/mod.rs - tree::Tree::event (line 134) ... FAILED
[INFO] [stdout] test src/tag.rs - tag::Tag::builder (line 101) ... ok
[INFO] [stdout] test src/layer/mod.rs - layer::test_init (line 373) ... ok
[INFO] [stdout] test src/layer/mod.rs - layer::init (line 344) ... ok
[INFO] [stdout] test src/lib.rs - (line 233) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/processor.rs - processor::from_fn (line 117) ... ok
[INFO] [stdout] test src/lib.rs - (line 131) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 198) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `uuid`
[INFO] [stdout]  --> src/lib.rs:200:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use uuid::Uuid;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `uuid`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/tree/mod.rs - tree::Tree::span (line 173) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `capture` in crate `tracing_forest`
[INFO] [stdout]    --> src/tree/mod.rs:180:43
[INFO] [stdout]     |
[INFO] [stdout] 9   |     let logs: Vec<Tree> = tracing_forest::capture()
[INFO] [stdout]     |                                           ^^^^^^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:301:23
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub use runtime::{capture, worker_task};
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `tokio` feature
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/tag.rs - tag (line 34) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `worker_task` in crate `tracing_forest`
[INFO] [stdout]    --> src/tag.rs:55:21
[INFO] [stdout]     |
[INFO] [stdout] 23  |     tracing_forest::worker_task()
[INFO] [stdout]     |                     ^^^^^^^^^^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:301:32
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub use runtime::{capture, worker_task};
[INFO] [stdout]     |                                ^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `tokio` feature
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/printer/mod.rs - printer::Formatter (line 18) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `worker_task` in crate `tracing_forest`
[INFO] [stdout]    --> src/printer/mod.rs:23:17
[INFO] [stdout]     |
[INFO] [stdout] 7   | tracing_forest::worker_task()
[INFO] [stdout]     |                 ^^^^^^^^^^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:301:32
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub use runtime::{capture, worker_task};
[INFO] [stdout]     |                                ^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `tokio` feature
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 49) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `worker_task` in crate `tracing_forest`
[INFO] [stdout]    --> src/lib.rs:55:21
[INFO] [stdout]     |
[INFO] [stdout] 8   |     tracing_forest::worker_task()
[INFO] [stdout]     |                     ^^^^^^^^^^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:301:32
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub use runtime::{capture, worker_task};
[INFO] [stdout]     |                                ^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `tokio` feature
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `EnvFilter`
[INFO] [stdout]   --> src/lib.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |             .with(EnvFilter::from_default_env())
[INFO] [stdout]    |                   ^^^^^^^^^ use of undeclared type `EnvFilter`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 208) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `uuid`
[INFO] [stdout]  --> src/lib.rs:211:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use uuid::Uuid;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `uuid`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `id` in crate `tracing_forest`
[INFO] [stdout]    --> src/lib.rs:216:38
[INFO] [stdout]     |
[INFO] [stdout] 11  |     let current_id = tracing_forest::id();
[INFO] [stdout]     |                                      ^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:305:24
[INFO] [stdout]     |
[INFO] [stdout] 305 |     pub use layer::id::id;
[INFO] [stdout]     |                        ^^
[INFO] [stdout]     = note: the item is gated behind the `uuid` feature
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 2   + use std::process::id;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `id`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 11  -     let current_id = tracing_forest::id();
[INFO] [stdout] 11  +     let current_id = id();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/tree/mod.rs - tree::Tree::event (line 134) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `capture` in crate `tracing_forest`
[INFO] [stdout]    --> src/tree/mod.rs:141:43
[INFO] [stdout]     |
[INFO] [stdout] 9   |     let logs: Vec<Tree> = tracing_forest::capture()
[INFO] [stdout]     |                                           ^^^^^^^ not found in `tracing_forest`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:301:23
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub use runtime::{capture, worker_task};
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `tokio` feature
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 198)
[INFO] [stdout]     src/lib.rs - (line 208)
[INFO] [stdout]     src/lib.rs - (line 49)
[INFO] [stdout]     src/printer/mod.rs - printer::Formatter (line 18)
[INFO] [stdout]     src/tag.rs - tag (line 34)
[INFO] [stdout]     src/tree/mod.rs - tree::Tree::event (line 134)
[INFO] [stdout]     src/tree/mod.rs - tree::Tree::span (line 173)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d4c8c0b69ecf92f25a97bd21d8452d250d567cdfe38bcb0ba5c8277efadf261b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c8c0b69ecf92f25a97bd21d8452d250d567cdfe38bcb0ba5c8277efadf261b", kill_on_drop: false }`
[INFO] [stdout] d4c8c0b69ecf92f25a97bd21d8452d250d567cdfe38bcb0ba5c8277efadf261b
