[INFO] fetching crate medea-jason 0.4.0... [INFO] checking medea-jason-0.4.0 against master#36b61e5aa593cc60cc92fc548b0d351e414aee2a for pr-116930 [INFO] extracting crate medea-jason 0.4.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate medea-jason 0.4.0 on toolchain 36b61e5aa593cc60cc92fc548b0d351e414aee2a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate medea-jason 0.4.0 [INFO] finished tweaking crates.io crate medea-jason 0.4.0 [INFO] tweaked toml for crates.io crate medea-jason 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "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" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded medea-macro v0.3.0 [INFO] [stderr] Downloaded medea-reactive v0.1.2 [INFO] [stderr] Downloaded build-target v0.4.0 [INFO] [stderr] Downloaded sealed v0.5.0 [INFO] [stderr] Downloaded dart-sys v4.0.2 [INFO] [stderr] Downloaded sealed v0.3.0 [INFO] [stderr] Downloaded medea-client-api-proto v0.5.0 [INFO] [stderr] Downloaded wasm-logger v0.2.0 [INFO] [stderr] Downloaded allo-isolate v0.1.20 [INFO] [stderr] Downloaded android_logger v0.13.3 [INFO] [stderr] Downloaded tracerr v0.3.0 [INFO] [stderr] Downloaded flutter_rust_bridge_macros v1.82.3 [INFO] [stderr] Downloaded flutter_rust_bridge v1.77.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 592ad8abb588605cfe14498cae45bb592a0d6f096c1c2866dddc67d6d26abf68 [INFO] running `Command { std: "docker" "start" "-a" "592ad8abb588605cfe14498cae45bb592a0d6f096c1c2866dddc67d6d26abf68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "592ad8abb588605cfe14498cae45bb592a0d6f096c1c2866dddc67d6d26abf68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "592ad8abb588605cfe14498cae45bb592a0d6f096c1c2866dddc67d6d26abf68", kill_on_drop: false }` [INFO] [stdout] 592ad8abb588605cfe14498cae45bb592a0d6f096c1c2866dddc67d6d26abf68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d6dddd0331b166fe6ab9569679cabec85932b84e4cc4ec1cda0e7d852fb7167 [INFO] running `Command { std: "docker" "start" "-a" "5d6dddd0331b166fe6ab9569679cabec85932b84e4cc4ec1cda0e7d852fb7167", kill_on_drop: false }` [INFO] [stderr] Compiling rustix v0.38.20 [INFO] [stderr] Compiling aho-corasick v1.1.2 [INFO] [stderr] Compiling serde v1.0.189 [INFO] [stderr] Compiling regex-syntax v0.8.2 [INFO] [stderr] Compiling darling_core v0.20.3 [INFO] [stderr] Compiling dart-sys v4.0.2 [INFO] [stderr] Compiling build-target v0.4.0 [INFO] [stderr] Checking powerfmt v0.2.0 [INFO] [stderr] Checking futures-util v0.3.28 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Compiling synstructure v0.13.0 [INFO] [stderr] Compiling time-macros v0.2.15 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Checking time-core v0.1.2 [INFO] [stderr] Checking allo-isolate v0.1.20 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling sealed v0.3.0 [INFO] [stderr] Compiling medea-jason v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking deranged v0.3.9 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Compiling flutter_rust_bridge v1.77.1 [INFO] [stderr] Compiling flutter_rust_bridge_macros v1.82.3 [INFO] [stderr] Checking bytemuck v1.14.0 [INFO] [stderr] Compiling sealed v0.5.0 [INFO] [stderr] Compiling derive_more v0.99.17 [INFO] [stderr] Checking backoff v0.4.0 [INFO] [stderr] Compiling async-recursion v1.0.5 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking colored v2.0.4 [INFO] [stderr] Checking time v0.3.30 [INFO] [stderr] Compiling darling_macro v0.20.3 [INFO] [stderr] Compiling regex-automata v0.4.3 [INFO] [stderr] Checking simple_logger v4.2.0 [INFO] [stderr] Compiling darling v0.20.3 [INFO] [stderr] Compiling serde_with_macros v3.4.0 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking medea-reactive v0.1.2 [INFO] [stderr] Checking serde_json v1.0.107 [INFO] [stderr] Checking tracerr v0.3.0 [INFO] [stderr] Checking serde_with v3.4.0 [INFO] [stderr] Compiling regex v1.10.2 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Compiling medea-macro v0.3.0 [INFO] [stderr] Checking medea-client-api-proto v0.5.0 [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/component/watchers.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:104:5 [INFO] [stdout] | [INFO] [stdout] 104 | let_underscore_drop, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 52 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 52 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/component/watchers.rs:421:9 [INFO] [stdout] | [INFO] [stdout] 421 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 421 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 421 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/repo.rs:227:9 [INFO] [stdout] | [INFO] [stdout] 227 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 227 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 227 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/component/watchers.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:104:5 [INFO] [stdout] | [INFO] [stdout] 104 | let_underscore_drop, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 52 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 52 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/component/watchers.rs:421:9 [INFO] [stdout] | [INFO] [stdout] 421 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 421 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 421 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-binding let on a type that implements `Drop` [INFO] [stdout] --> src/peer/repo.rs:227:9 [INFO] [stdout] | [INFO] [stdout] 227 | _: Rc, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 227 | _unused: Rc, [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 227 | drop(_): Rc, [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::result::Result::::map_or` that must be used [INFO] [stdout] --> src/rpc/heartbeat.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.transport [INFO] [stdout] 69 | | .send(&ClientMsg::Pong(n)) [INFO] [stdout] 70 | | .map_err(tracerr::wrap!(=> platform::TransportError)) [INFO] [stdout] 71 | | .map_err(|e| log::error!("Failed to send pong: {e}")) [INFO] [stdout] 72 | | .map_or((), drop); [INFO] [stdout] | |_____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.transport [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::result::Result::::map_or` that must be used [INFO] [stdout] --> src/rpc/heartbeat.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.transport [INFO] [stdout] 69 | | .send(&ClientMsg::Pong(n)) [INFO] [stdout] 70 | | .map_err(tracerr::wrap!(=> platform::TransportError)) [INFO] [stdout] 71 | | .map_err(|e| log::error!("Failed to send pong: {e}")) [INFO] [stdout] 72 | | .map_or((), drop); [INFO] [stdout] | |_____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.transport [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.05s [INFO] running `Command { std: "docker" "inspect" "5d6dddd0331b166fe6ab9569679cabec85932b84e4cc4ec1cda0e7d852fb7167", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d6dddd0331b166fe6ab9569679cabec85932b84e4cc4ec1cda0e7d852fb7167", kill_on_drop: false }` [INFO] [stdout] 5d6dddd0331b166fe6ab9569679cabec85932b84e4cc4ec1cda0e7d852fb7167