[INFO] fetching crate reactive-streams 0.0.1...
[INFO] documenting reactive-streams-0.0.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate reactive-streams 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate reactive-streams 0.0.1 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 reactive-streams 0.0.1
[INFO] finished tweaking crates.io crate reactive-streams 0.0.1
[INFO] tweaked toml for crates.io crate reactive-streams 0.0.1 written to /workspace/builds/worker-4-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] 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 789a4aa7e54d85acb504046ca7ed49b262dcf8470724c1bd46c31eb588198eaf
[INFO] running `Command { std: "docker" "start" "-a" "789a4aa7e54d85acb504046ca7ed49b262dcf8470724c1bd46c31eb588198eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "789a4aa7e54d85acb504046ca7ed49b262dcf8470724c1bd46c31eb588198eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789a4aa7e54d85acb504046ca7ed49b262dcf8470724c1bd46c31eb588198eaf", kill_on_drop: false }`
[INFO] [stdout] 789a4aa7e54d85acb504046ca7ed49b262dcf8470724c1bd46c31eb588198eaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f6e0d29242b3801ad1d94ec219c1b384b7591ec58aed10c68d47be946040d7
[INFO] running `Command { std: "docker" "start" "-a" "42f6e0d29242b3801ad1d94ec219c1b384b7591ec58aed10c68d47be946040d7", kill_on_drop: false }`
[INFO] [stderr]  Documenting reactive-streams v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0038]: the trait `Subscriber` cannot be made into an object
[INFO] [stdout]   --> src/lib.rs:3:19
[INFO] [stdout]    |
[INFO] [stdout] 3  |   fn subscribe(s: Subscriber<T>);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ `Subscriber` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/lib.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Subscriber<T> {
[INFO] [stdout]    |           ---------- this trait cannot be made into an object...
[INFO] [stdout] 14 |   #[allow(non_snake_case)]
[INFO] [stdout] 15 |   fn onSubscribe(s: Subscription);
[INFO] [stdout]    |      ^^^^^^^^^^^ ...because associated function `onSubscribe` has no `self` parameter
[INFO] [stdout] 16 |   #[allow(non_snake_case)]
[INFO] [stdout] 17 |   fn onNext(t: T);
[INFO] [stdout]    |      ^^^^^^ ...because associated function `onNext` has no `self` parameter
[INFO] [stdout] 18 |   #[allow(non_snake_case)]
[INFO] [stdout] 19 |   fn onError(e: std::error::Error);
[INFO] [stdout]    |      ^^^^^^^ ...because associated function `onError` has no `self` parameter
[INFO] [stdout] 20 |   #[allow(non_snake_case)]
[INFO] [stdout] 21 |   fn onComplete();
[INFO] [stdout]    |      ^^^^^^^^^^ ...because associated function `onComplete` has no `self` parameter
[INFO] [stdout] help: consider turning `onSubscribe` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 15 |   fn onSubscribe(&self, s: Subscription);
[INFO] [stdout]    |                  ++++++
[INFO] [stdout] help: alternatively, consider constraining `onSubscribe` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 15 |   fn onSubscribe(s: Subscription) where Self: Sized;
[INFO] [stdout]    |                                   +++++++++++++++++
[INFO] [stdout] help: consider turning `onNext` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 17 |   fn onNext(&self, t: T);
[INFO] [stdout]    |             ++++++
[INFO] [stdout] help: alternatively, consider constraining `onNext` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 17 |   fn onNext(t: T) where Self: Sized;
[INFO] [stdout]    |                   +++++++++++++++++
[INFO] [stdout] help: consider turning `onError` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn onError(&self, e: std::error::Error);
[INFO] [stdout]    |              ++++++
[INFO] [stdout] help: alternatively, consider constraining `onError` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn onError(e: std::error::Error) where Self: Sized;
[INFO] [stdout]    |                                    +++++++++++++++++
[INFO] [stdout] help: consider turning `onComplete` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 21 |   fn onComplete(&self);
[INFO] [stdout]    |                 +++++
[INFO] [stdout] help: alternatively, consider constraining `onComplete` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 21 |   fn onComplete() where Self: Sized;
[INFO] [stdout]    |                   +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `Subscription` cannot be made into an object
[INFO] [stdout]   --> src/lib.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |   fn onSubscribe(s: Subscription);
[INFO] [stdout]    |                     ^^^^^^^^^^^^ `Subscription` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/lib.rs:8:6
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Subscription {
[INFO] [stdout]    |           ------------ this trait cannot be made into an object...
[INFO] [stdout] 7  |   #[allow(non_snake_case)]
[INFO] [stdout] 8  |   fn request(n: u64);
[INFO] [stdout]    |      ^^^^^^^ ...because associated function `request` has no `self` parameter
[INFO] [stdout] 9  |   #[allow(non_snake_case)]
[INFO] [stdout] 10 |   fn cancel();
[INFO] [stdout]    |      ^^^^^^ ...because associated function `cancel` has no `self` parameter
[INFO] [stdout] help: consider turning `request` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 8  |   fn request(&self, n: u64);
[INFO] [stdout]    |              ++++++
[INFO] [stdout] help: alternatively, consider constraining `request` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 8  |   fn request(n: u64) where Self: Sized;
[INFO] [stdout]    |                      +++++++++++++++++
[INFO] [stdout] help: consider turning `cancel` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn cancel(&self);
[INFO] [stdout]    |             +++++
[INFO] [stdout] help: alternatively, consider constraining `cancel` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn cancel() where Self: Sized;
[INFO] [stdout]    |               +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `reactive-streams`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type lib --crate-name reactive_streams src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9769acc4e8f585c4 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "42f6e0d29242b3801ad1d94ec219c1b384b7591ec58aed10c68d47be946040d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f6e0d29242b3801ad1d94ec219c1b384b7591ec58aed10c68d47be946040d7", kill_on_drop: false }`
[INFO] [stdout] 42f6e0d29242b3801ad1d94ec219c1b384b7591ec58aed10c68d47be946040d7
