[INFO] fetching crate foxglove-ws 0.2.2...
[INFO] testing foxglove-ws-0.2.2 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate foxglove-ws 0.2.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate foxglove-ws 0.2.2
[INFO] finished tweaking crates.io crate foxglove-ws 0.2.2
[INFO] tweaked toml for crates.io crate foxglove-ws 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate foxglove-ws 0.2.2 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate foxglove-ws 0.2.2 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7860c2a89fcb6ca33c46661c88a55160e61d2a432b5b2b685920b78b2fee2bac
[INFO] running `Command { std: "docker" "start" "-a" "7860c2a89fcb6ca33c46661c88a55160e61d2a432b5b2b685920b78b2fee2bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7860c2a89fcb6ca33c46661c88a55160e61d2a432b5b2b685920b78b2fee2bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7860c2a89fcb6ca33c46661c88a55160e61d2a432b5b2b685920b78b2fee2bac", kill_on_drop: false }`
[INFO] [stdout] 7860c2a89fcb6ca33c46661c88a55160e61d2a432b5b2b685920b78b2fee2bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f3ecf69f05f31bcc85c35b47965d9482ca209e564fe7c5061a5f65db6fe5dc9
[INFO] running `Command { std: "docker" "start" "-a" "1f3ecf69f05f31bcc85c35b47965d9482ca209e564fe7c5061a5f65db6fe5dc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling bytes v1.5.0
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[INFO] [stderr]    Compiling digest v0.10.7
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[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.107
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[INFO] [stderr]    Compiling rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
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[INFO] [stderr]    Compiling num_cpus v1.16.0
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[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling uuid v1.4.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v2.1.0
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[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tokio-util v0.7.9
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling tokio-tungstenite v0.20.1
[INFO] [stderr]    Compiling h2 v0.3.21
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling warp v0.3.6
[INFO] [stderr]    Compiling foxglove-ws v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 32s
[INFO] running `Command { std: "docker" "inspect" "1f3ecf69f05f31bcc85c35b47965d9482ca209e564fe7c5061a5f65db6fe5dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3ecf69f05f31bcc85c35b47965d9482ca209e564fe7c5061a5f65db6fe5dc9", kill_on_drop: false }`
[INFO] [stdout] 1f3ecf69f05f31bcc85c35b47965d9482ca209e564fe7c5061a5f65db6fe5dc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92399970cd39483f926a379abbf642c15f74fc63bd1ed409eca26504a124c294
[INFO] running `Command { std: "docker" "start" "-a" "92399970cd39483f926a379abbf642c15f74fc63bd1ed409eca26504a124c294", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling rustix v0.38.15
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[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling multer v2.1.0
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[INFO] [stderr]    Compiling tokio-util v0.7.9
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[INFO] [stderr]    Compiling regex v1.9.6
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling warp v0.3.6
[INFO] [stderr]    Compiling foxglove-ws v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "92399970cd39483f926a379abbf642c15f74fc63bd1ed409eca26504a124c294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92399970cd39483f926a379abbf642c15f74fc63bd1ed409eca26504a124c294", kill_on_drop: false }`
[INFO] [stdout] 92399970cd39483f926a379abbf642c15f74fc63bd1ed409eca26504a124c294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6097fcce77173c594a261691ecf6214c7b3ab69ade8e6562cff64218c73c8d6
[INFO] running `Command { std: "docker" "start" "-a" "d6097fcce77173c594a261691ecf6214c7b3ab69ade8e6562cff64218c73c8d6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/foxglove_ws-a9d610235b30f998)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests foxglove_ws
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 13) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[tokio::main]
[INFO] [stdout]    | -------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 31 |         .await?;
[INFO] [stdout]    |               ^ cannot use the `?` operator in an async block that returns `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[tokio::main]
[INFO] [stdout]    | -------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 35 |             &build_string_message("Hello!")?,
[INFO] [stdout]    |                                            ^ cannot use the `?` operator in an async block that returns `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:48:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[tokio::main]
[INFO] [stdout]    | -------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 37 |         .await?;
[INFO] [stdout]    |               ^ cannot use the `?` operator in an async block that returns `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |   async fn main() -> anyhow::Result<()> {
[INFO] [stdout]    |                      ------------------ expected `Result<(), anyhow::Error>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 32 | /     channel
[INFO] [stdout] 33 | |         .send(
[INFO] [stdout] 34 | |             SystemTime::now().elapsed().unwrap().as_nanos() as u64,
[INFO] [stdout] 35 | |             &build_string_message("Hello!")?,
[INFO] [stdout] 36 | |         )
[INFO] [stdout] 37 | |         .await?;
[INFO] [stdout]    | |________________^ expected `Result<(), Error>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), anyhow::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] help: try adding an expression at the end of the block
[INFO] [stdout]    |
[INFO] [stdout] 37 ~         .await?;;
[INFO] [stdout] 38 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 13)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d6097fcce77173c594a261691ecf6214c7b3ab69ade8e6562cff64218c73c8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6097fcce77173c594a261691ecf6214c7b3ab69ade8e6562cff64218c73c8d6", kill_on_drop: false }`
[INFO] [stdout] d6097fcce77173c594a261691ecf6214c7b3ab69ade8e6562cff64218c73c8d6
