[INFO] fetching crate embedded-packet-io 0.1.0... [INFO] testing embedded-packet-io-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate embedded-packet-io 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate embedded-packet-io 0.1.0 [INFO] finished tweaking crates.io crate embedded-packet-io 0.1.0 [INFO] tweaked toml for crates.io crate embedded-packet-io 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate embedded-packet-io 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate embedded-packet-io 0.1.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 606fe3010d0240d0fdeaf60ba1834ae713fd09dc94e5ec4b84530a8be4b1f0ac [INFO] running `Command { std: "docker" "start" "-a" "606fe3010d0240d0fdeaf60ba1834ae713fd09dc94e5ec4b84530a8be4b1f0ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "606fe3010d0240d0fdeaf60ba1834ae713fd09dc94e5ec4b84530a8be4b1f0ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "606fe3010d0240d0fdeaf60ba1834ae713fd09dc94e5ec4b84530a8be4b1f0ac", kill_on_drop: false }` [INFO] [stdout] 606fe3010d0240d0fdeaf60ba1834ae713fd09dc94e5ec4b84530a8be4b1f0ac [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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bd62dee977585c985b9a26503ff1a2c7d449c9872752d332345d987d562ad3be [INFO] running `Command { std: "docker" "start" "-a" "bd62dee977585c985b9a26503ff1a2c7d449c9872752d332345d987d562ad3be", kill_on_drop: false }` [INFO] [stderr] Compiling embedded-io-async v0.6.1 [INFO] [stderr] Compiling hash32 v0.3.1 [INFO] [stderr] Compiling embedded-io v0.6.1 [INFO] [stderr] Compiling heapless v0.8.0 [INFO] [stderr] Compiling embedded-packet-io v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 8 - async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] 8 + fn read_packet(&mut self) -> impl std::future::Future, Self::Error>> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 15 - async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] 15 + fn write_packet(&mut self, x: heapless::Vec) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 16 - async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] 16 + fn flush(&mut self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s [INFO] running `Command { std: "docker" "inspect" "bd62dee977585c985b9a26503ff1a2c7d449c9872752d332345d987d562ad3be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd62dee977585c985b9a26503ff1a2c7d449c9872752d332345d987d562ad3be", kill_on_drop: false }` [INFO] [stdout] bd62dee977585c985b9a26503ff1a2c7d449c9872752d332345d987d562ad3be [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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a6375b739463e8c115d4829c45e865806f9a5877881b5acd6a315539b167c2c [INFO] running `Command { std: "docker" "start" "-a" "9a6375b739463e8c115d4829c45e865806f9a5877881b5acd6a315539b167c2c", kill_on_drop: false }` [INFO] [stderr] Compiling embedded-packet-io v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 8 - async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] 8 + fn read_packet(&mut self) -> impl std::future::Future, Self::Error>> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 15 - async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] 15 + fn write_packet(&mut self, x: heapless::Vec) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 16 - async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] 16 + fn flush(&mut self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 8 - async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stdout] 8 + fn read_packet(&mut self) -> impl std::future::Future, Self::Error>> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 15 - async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stdout] 15 + fn write_packet(&mut self, x: heapless::Vec) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stdout] --> src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stdout] | [INFO] [stdout] 16 - async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stdout] 16 + fn flush(&mut self) -> impl std::future::Future> + Send; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "9a6375b739463e8c115d4829c45e865806f9a5877881b5acd6a315539b167c2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a6375b739463e8c115d4829c45e865806f9a5877881b5acd6a315539b167c2c", kill_on_drop: false }` [INFO] [stdout] 9a6375b739463e8c115d4829c45e865806f9a5877881b5acd6a315539b167c2c [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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b0a67daf1d085373a41c7aadce1446c9424cc5784c946ca0b887e40382ca913d [INFO] running `Command { std: "docker" "start" "-a" "b0a67daf1d085373a41c7aadce1446c9424cc5784c946ca0b887e40382ca913d", kill_on_drop: false }` [INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stderr] --> src/lib.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stderr] = note: `#[warn(async_fn_in_trait)]` on by default [INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stderr] | [INFO] [stderr] 8 - async fn read_packet(&mut self) -> Result, Self::Error>; [INFO] [stderr] 8 + fn read_packet(&mut self) -> impl std::future::Future, Self::Error>> + Send; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stderr] --> src/lib.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stderr] | [INFO] [stderr] 15 - async fn write_packet(&mut self, x: heapless::Vec) -> Result<(),Self::Error>; [INFO] [stderr] 15 + fn write_packet(&mut self, x: heapless::Vec) -> impl std::future::Future> + Send; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified [INFO] [stderr] --> src/lib.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future` [INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change [INFO] [stderr] | [INFO] [stderr] 16 - async fn flush(&mut self) -> Result<(),Self::Error>; [INFO] [stderr] 16 + fn flush(&mut self) -> impl std::future::Future> + Send; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `embedded-packet-io` (lib) generated 3 warnings [INFO] [stderr] warning: `embedded-packet-io` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/embedded_packet_io-d82a47b03214c0ba) [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 embedded_packet_io [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] running `Command { std: "docker" "inspect" "b0a67daf1d085373a41c7aadce1446c9424cc5784c946ca0b887e40382ca913d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0a67daf1d085373a41c7aadce1446c9424cc5784c946ca0b887e40382ca913d", kill_on_drop: false }` [INFO] [stdout] b0a67daf1d085373a41c7aadce1446c9424cc5784c946ca0b887e40382ca913d