[INFO] fetching crate keyz_rust_client 1.0.5...
[INFO] checking keyz_rust_client-1.0.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate keyz_rust_client 1.0.5 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate keyz_rust_client 1.0.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate keyz_rust_client 1.0.5
[INFO] finished tweaking crates.io crate keyz_rust_client 1.0.5
[INFO] tweaked toml for crates.io crate keyz_rust_client 1.0.5 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d92cc1e17b0313bc8ecf4e752837614699d120d44a10d732e57da704ef7b38
[INFO] running `Command { std: "docker" "start" "-a" "39d92cc1e17b0313bc8ecf4e752837614699d120d44a10d732e57da704ef7b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d92cc1e17b0313bc8ecf4e752837614699d120d44a10d732e57da704ef7b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d92cc1e17b0313bc8ecf4e752837614699d120d44a10d732e57da704ef7b38", kill_on_drop: false }`
[INFO] [stdout] 39d92cc1e17b0313bc8ecf4e752837614699d120d44a10d732e57da704ef7b38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4c32f4b185da15214e60573eb848652155adee7fcfa8dee8fe7b96b8ef5b20d
[INFO] running `Command { std: "docker" "start" "-a" "d4c32f4b185da15214e60573eb848652155adee7fcfa8dee8fe7b96b8ef5b20d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking keyz_rust_client v1.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]   --> src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let response = Self::read_message(self).await?;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]   --> src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let response = Self::read_message(self).await?;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let req = keyz.set("test", "1", None).await.unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let req = keyz.set("test", "1", None).await.unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let req = keyz.set("test", "1", Some(20)).await.unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "d4c32f4b185da15214e60573eb848652155adee7fcfa8dee8fe7b96b8ef5b20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c32f4b185da15214e60573eb848652155adee7fcfa8dee8fe7b96b8ef5b20d", kill_on_drop: false }`
[INFO] [stdout] d4c32f4b185da15214e60573eb848652155adee7fcfa8dee8fe7b96b8ef5b20d