[INFO] fetching crate drogue-http-client 0.0.2...
[INFO] checking drogue-http-client-0.0.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate drogue-http-client 0.0.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate drogue-http-client 0.0.2
[INFO] finished tweaking crates.io crate drogue-http-client 0.0.2
[INFO] tweaked toml for crates.io crate drogue-http-client 0.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate drogue-http-client 0.0.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.7.1 (available: v0.11.8)
[INFO] [stderr]       Adding heapless v0.5.6 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 227dcf90fb9bb063c9bf7ea41dbfa66262cd28731877d2025a69ad7d0ba7209e
[INFO] running `Command { std: "docker" "start" "-a" "227dcf90fb9bb063c9bf7ea41dbfa66262cd28731877d2025a69ad7d0ba7209e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "227dcf90fb9bb063c9bf7ea41dbfa66262cd28731877d2025a69ad7d0ba7209e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227dcf90fb9bb063c9bf7ea41dbfa66262cd28731877d2025a69ad7d0ba7209e", kill_on_drop: false }`
[INFO] [stdout] 227dcf90fb9bb063c9bf7ea41dbfa66262cd28731877d2025a69ad7d0ba7209e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87b329aa19b223f1186bc6bcfba354ed569ad1d6963956c30f416269c82b8bb3
[INFO] running `Command { std: "docker" "start" "-a" "87b329aa19b223f1186bc6bcfba354ed569ad1d6963956c30f416269c82b8bb3", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking no-std-net v0.4.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking drogue-network v0.2.0
[INFO] [stderr]     Checking drogue-http-client v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SinkWrapper` is never constructed
[INFO] [stdout]   --> src/sink.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct SinkWrapper<'a>(&'a mut dyn Sink);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/con.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 | /         self.connection
[INFO] [stdout] 162 | |             .send_request::<S, OUT>(sink, self.method, self.path, self.headers, payload);
[INFO] [stdout]     | |________________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let _ = self.connection
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/con.rs:317:17
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 self.connection.inbound.extend_from_slice(data);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 let _ = self.connection.inbound.extend_from_slice(data);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stdout] warning: struct `SinkWrapper` is never constructed
[INFO] [stdout]   --> src/sink.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct SinkWrapper<'a>(&'a mut dyn Sink);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/con.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 | /         self.connection
[INFO] [stdout] 162 | |             .send_request::<S, OUT>(sink, self.method, self.path, self.headers, payload);
[INFO] [stdout]     | |________________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let _ = self.connection
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/con.rs:317:17
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 self.connection.inbound.extend_from_slice(data);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 let _ = self.connection.inbound.extend_from_slice(data);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `Command { std: "docker" "inspect" "87b329aa19b223f1186bc6bcfba354ed569ad1d6963956c30f416269c82b8bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b329aa19b223f1186bc6bcfba354ed569ad1d6963956c30f416269c82b8bb3", kill_on_drop: false }`
[INFO] [stdout] 87b329aa19b223f1186bc6bcfba354ed569ad1d6963956c30f416269c82b8bb3