[INFO] fetching crate wasmer-clif-backend-fl 0.17.0...
[INFO] testing wasmer-clif-backend-fl-0.17.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate wasmer-clif-backend-fl 0.17.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate wasmer-clif-backend-fl 0.17.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-clif-backend-fl 0.17.0
[INFO] finished tweaking crates.io crate wasmer-clif-backend-fl 0.17.0
[INFO] tweaked toml for crates.io crate wasmer-clif-backend-fl 0.17.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d79c5fafbcfdb4625c26a3305f05d289c0f2fcee8fd0085518cef5032bbbcb25
[INFO] running `Command { std: "docker" "start" "-a" "d79c5fafbcfdb4625c26a3305f05d289c0f2fcee8fd0085518cef5032bbbcb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d79c5fafbcfdb4625c26a3305f05d289c0f2fcee8fd0085518cef5032bbbcb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d79c5fafbcfdb4625c26a3305f05d289c0f2fcee8fd0085518cef5032bbbcb25", kill_on_drop: false }`
[INFO] [stdout] d79c5fafbcfdb4625c26a3305f05d289c0f2fcee8fd0085518cef5032bbbcb25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a71724c3e4edad1dec5c2fd07f41ef74b663712461b291edc4bb094a860fba5f
[INFO] running `Command { std: "docker" "start" "-a" "a71724c3e4edad1dec5c2fd07f41ef74b663712461b291edc4bb094a860fba5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-entity v0.59.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.59.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling gimli v0.20.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling wasmer-runtime-core-fl v0.17.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.59.0
[INFO] [stderr]    Compiling cranelift-bforest v0.59.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling cranelift-codegen v0.59.0
[INFO] [stderr]    Compiling wasmer-clif-fork-frontend v0.59.0
[INFO] [stderr]    Compiling cranelift-native v0.59.0
[INFO] [stderr]    Compiling wasmer-clif-fork-wasm v0.59.0
[INFO] [stderr]    Compiling wasmer-clif-backend-fl v0.17.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `function_signatures`
[INFO] [stdout]   --> src/code.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     function_signatures: Option<Arc<Map<FuncIndex, SigIndex>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  |     dead_code,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasmer-clif-backend-fl`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a71724c3e4edad1dec5c2fd07f41ef74b663712461b291edc4bb094a860fba5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a71724c3e4edad1dec5c2fd07f41ef74b663712461b291edc4bb094a860fba5f", kill_on_drop: false }`
[INFO] [stdout] a71724c3e4edad1dec5c2fd07f41ef74b663712461b291edc4bb094a860fba5f