[INFO] fetching crate vercel_lambda 0.2.0...
[INFO] checking vercel_lambda-0.2.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate vercel_lambda 0.2.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate vercel_lambda 0.2.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vercel_lambda 0.2.0
[INFO] finished tweaking crates.io crate vercel_lambda 0.2.0
[INFO] tweaked toml for crates.io crate vercel_lambda 0.2.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3cc4916783fe293575c63f8f54bd0b24acd58e68efa035473c05fe715fb7ab0
[INFO] running `Command { std: "docker" "start" "-a" "f3cc4916783fe293575c63f8f54bd0b24acd58e68efa035473c05fe715fb7ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3cc4916783fe293575c63f8f54bd0b24acd58e68efa035473c05fe715fb7ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3cc4916783fe293575c63f8f54bd0b24acd58e68efa035473c05fe715fb7ab0", kill_on_drop: false }`
[INFO] [stdout] f3cc4916783fe293575c63f8f54bd0b24acd58e68efa035473c05fe715fb7ab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5d745d24f3f585aaa82e51fdfd41193cb21273b8ebff493f5b2c24796277633
[INFO] running `Command { std: "docker" "start" "-a" "f5d745d24f3f585aaa82e51fdfd41193cb21273b8ebff493f5b2c24796277633", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking vercel_lambda v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `action`
[INFO] [stdout]   --> src/request.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     action: Cow<'a, str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `action`
[INFO] [stdout]   --> src/request.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     action: Cow<'a, str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "f5d745d24f3f585aaa82e51fdfd41193cb21273b8ebff493f5b2c24796277633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d745d24f3f585aaa82e51fdfd41193cb21273b8ebff493f5b2c24796277633", kill_on_drop: false }`
[INFO] [stdout] f5d745d24f3f585aaa82e51fdfd41193cb21273b8ebff493f5b2c24796277633