[INFO] fetching crate tracing-tunnel 0.1.0...
[INFO] testing tracing-tunnel-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate tracing-tunnel 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate tracing-tunnel 0.1.0 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-tunnel 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-tunnel 0.1.0
[INFO] tweaked toml for crates.io crate tracing-tunnel 0.1.0 written to /workspace/builds/worker-7-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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c33a693aaf679bc04010de70c443ac9abc0fc8565ee479ebae13b8bee538b4fe
[INFO] running `Command { std: "docker" "start" "-a" "c33a693aaf679bc04010de70c443ac9abc0fc8565ee479ebae13b8bee538b4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c33a693aaf679bc04010de70c443ac9abc0fc8565ee479ebae13b8bee538b4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33a693aaf679bc04010de70c443ac9abc0fc8565ee479ebae13b8bee538b4fe", kill_on_drop: false }`
[INFO] [stdout] c33a693aaf679bc04010de70c443ac9abc0fc8565ee479ebae13b8bee538b4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9994d6f859eb81623deae08c11c6ea7b0803b5359c46407ec944c8d9627284b6
[INFO] running `Command { std: "docker" "start" "-a" "9994d6f859eb81623deae08c11c6ea7b0803b5359c46407ec944c8d9627284b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling tracing-tunnel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.28s
[INFO] running `Command { std: "docker" "inspect" "9994d6f859eb81623deae08c11c6ea7b0803b5359c46407ec944c8d9627284b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9994d6f859eb81623deae08c11c6ea7b0803b5359c46407ec944c8d9627284b6", kill_on_drop: false }`
[INFO] [stdout] 9994d6f859eb81623deae08c11c6ea7b0803b5359c46407ec944c8d9627284b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 351814990fa3f8ef302127c62a16fac1affe07c22a40ea2c0d9a899da534c0b7
[INFO] running `Command { std: "docker" "start" "-a" "351814990fa3f8ef302127c62a16fac1affe07c22a40ea2c0d9a899da534c0b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling winnow v0.5.32
[INFO] [stderr]    Compiling pulldown-cmark v0.9.3
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling similar v2.4.0
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling insta v1.34.0
[INFO] [stderr]    Compiling tracing-tunnel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling version-sync v0.9.5
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `Command { std: "docker" "inspect" "351814990fa3f8ef302127c62a16fac1affe07c22a40ea2c0d9a899da534c0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "351814990fa3f8ef302127c62a16fac1affe07c22a40ea2c0d9a899da534c0b7", kill_on_drop: false }`
[INFO] [stdout] 351814990fa3f8ef302127c62a16fac1affe07c22a40ea2c0d9a899da534c0b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 07d282b20e3b836ff4e0f8636498dab92f0d3e9bb986e50798d27fab4341996d
[INFO] running `Command { std: "docker" "start" "-a" "07d282b20e3b836ff4e0f8636498dab92f0d3e9bb986e50798d27fab4341996d", 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_tunnel-cf8fc30609a417b4)
[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/version_match.rs (/opt/rustwide/target/debug/deps/version_match-e3ed844da7160757)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test readme_is_in_sync ... ok
[INFO] [stdout] test html_root_url_is_in_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing-tunnel
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 117) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 236) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 88) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 259) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 117) stdout ----
[INFO] [stdout] error[E0432]: unresolved imports `tracing_tunnel::LocalSpans`, `tracing_tunnel::PersistedMetadata`, `tracing_tunnel::PersistedSpans`, `tracing_tunnel::TracingEventReceiver`
[INFO] [stdout]    --> src/lib.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 6   |     LocalSpans, PersistedMetadata, PersistedSpans, TracingEvent, TracingEventReceiver
[INFO] [stdout]     |     ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^ no `TracingEventReceiver` in the root
[INFO] [stdout]     |     |           |                  |
[INFO] [stdout]     |     |           |                  no `PersistedSpans` in the root
[INFO] [stdout]     |     |           no `PersistedMetadata` in the root
[INFO] [stdout]     |     no `LocalSpans` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:36
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:66
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[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/lib.rs - (line 236) stdout ----
[INFO] [stdout] error[E0432]: unresolved imports `tracing_tunnel::TracingEventSender`, `tracing_tunnel::TracingEventReceiver`
[INFO] [stdout]    --> src/lib.rs:239:36
[INFO] [stdout]     |
[INFO] [stdout] 6   | use tracing_tunnel::{TracingEvent, TracingEventSender, TracingEventReceiver};
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^ no `TracingEventReceiver` in the root
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    no `TracingEventSender` in the root
[INFO] [stdout]     |                                    help: a similar name exists in the module: `TracingEvent`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:184:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub use crate::sender::TracingEventSender;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `sender` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:66
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[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/lib.rs - (line 88) stdout ----
[INFO] [stdout] error[E0432]: unresolved imports `tracing_tunnel::TracingEventSender`, `tracing_tunnel::TracingEventReceiver`
[INFO] [stdout]    --> src/lib.rs:92:36
[INFO] [stdout]     |
[INFO] [stdout] 7   | use tracing_tunnel::{TracingEvent, TracingEventSender, TracingEventReceiver};
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^ no `TracingEventReceiver` in the root
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    no `TracingEventSender` in the root
[INFO] [stdout]     |                                    help: a similar name exists in the module: `TracingEvent`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:184:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub use crate::sender::TracingEventSender;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `sender` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:66
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[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/lib.rs - (line 259) stdout ----
[INFO] [stdout] error[E0432]: unresolved imports `tracing_tunnel::LocalSpans`, `tracing_tunnel::PersistedMetadata`, `tracing_tunnel::PersistedSpans`, `tracing_tunnel::TracingEventReceiver`
[INFO] [stdout]    --> src/lib.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 7   |     LocalSpans, PersistedMetadata, PersistedSpans, TracingEvent, TracingEventReceiver,
[INFO] [stdout]     |     ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^ no `TracingEventReceiver` in the root
[INFO] [stdout]     |     |           |                  |
[INFO] [stdout]     |     |           |                  no `PersistedSpans` in the root
[INFO] [stdout]     |     |           no `PersistedMetadata` in the root
[INFO] [stdout]     |     no `LocalSpans` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:36
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:181:66
[INFO] [stdout]     |
[INFO] [stdout] 181 |     LocalSpans, PersistedMetadata, PersistedSpans, ReceiveError, TracingEventReceiver,
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: the item is gated behind the `receiver` feature
[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] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 117)
[INFO] [stdout]     src/lib.rs - (line 236)
[INFO] [stdout]     src/lib.rs - (line 259)
[INFO] [stdout]     src/lib.rs - (line 88)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "07d282b20e3b836ff4e0f8636498dab92f0d3e9bb986e50798d27fab4341996d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d282b20e3b836ff4e0f8636498dab92f0d3e9bb986e50798d27fab4341996d", kill_on_drop: false }`
[INFO] [stdout] 07d282b20e3b836ff4e0f8636498dab92f0d3e9bb986e50798d27fab4341996d
