[INFO] fetching crate embedded-hal-fuzz 0.1.2...
[INFO] checking embedded-hal-fuzz-0.1.2 against try#b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4 for pr-102737
[INFO] extracting crate embedded-hal-fuzz 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate embedded-hal-fuzz 0.1.2 on toolchain b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-hal-fuzz 0.1.2
[INFO] finished tweaking crates.io crate embedded-hal-fuzz 0.1.2
[INFO] tweaked toml for crates.io crate embedded-hal-fuzz 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f540054245fa60b610b012681a2d164dec400b6d4cadba95e69795f1576f65fc
[INFO] running `Command { std: "docker" "start" "-a" "f540054245fa60b610b012681a2d164dec400b6d4cadba95e69795f1576f65fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f540054245fa60b610b012681a2d164dec400b6d4cadba95e69795f1576f65fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f540054245fa60b610b012681a2d164dec400b6d4cadba95e69795f1576f65fc", kill_on_drop: false }`
[INFO] [stdout] f540054245fa60b610b012681a2d164dec400b6d4cadba95e69795f1576f65fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c1aaec8ab6a9b3ebe6f47e8446d5d0593e1b25a0be6a213cc3dff57ecbcecd6
[INFO] running `Command { std: "docker" "start" "-a" "3c1aaec8ab6a9b3ebe6f47e8446d5d0593e1b25a0be6a213cc3dff57ecbcecd6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking arbitrary v1.1.7
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking embedded-hal-fuzz v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/i2c.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         address: A,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.4
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.102/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=330af79824c04868 -C extra-filename=-330af79824c04868 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce93c879907a70ed.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5fd1a070ee0a6aad.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-0ffae4fba3cf9146.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3c1aaec8ab6a9b3ebe6f47e8446d5d0593e1b25a0be6a213cc3dff57ecbcecd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c1aaec8ab6a9b3ebe6f47e8446d5d0593e1b25a0be6a213cc3dff57ecbcecd6", kill_on_drop: false }`
[INFO] [stdout] 3c1aaec8ab6a9b3ebe6f47e8446d5d0593e1b25a0be6a213cc3dff57ecbcecd6