[INFO] fetching crate darling 0.13.0...
[INFO] testing darling-0.13.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate darling 0.13.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate darling 0.13.0 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 darling 0.13.0
[INFO] finished tweaking crates.io crate darling 0.13.0
[INFO] tweaked toml for crates.io crate darling 0.13.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate darling 0.13.0 already has a lockfile, it will not be regenerated
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] f61769de5acc38017e567e7888dfb2d959cc6a73ddb4a62f28c4e138ef0984fe
[INFO] running `Command { std: "docker" "start" "-a" "f61769de5acc38017e567e7888dfb2d959cc6a73ddb4a62f28c4e138ef0984fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f61769de5acc38017e567e7888dfb2d959cc6a73ddb4a62f28c4e138ef0984fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f61769de5acc38017e567e7888dfb2d959cc6a73ddb4a62f28c4e138ef0984fe", kill_on_drop: false }`
[INFO] [stdout] f61769de5acc38017e567e7888dfb2d959cc6a73ddb4a62f28c4e138ef0984fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 045c5cb1107a089bfbfb6a90edbce11cbdc48d927db6d9187eeac85746c2eeb5
[INFO] running `Command { std: "docker" "start" "-a" "045c5cb1107a089bfbfb6a90edbce11cbdc48d927db6d9187eeac85746c2eeb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "045c5cb1107a089bfbfb6a90edbce11cbdc48d927db6d9187eeac85746c2eeb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045c5cb1107a089bfbfb6a90edbce11cbdc48d927db6d9187eeac85746c2eeb5", kill_on_drop: false }`
[INFO] [stdout] 045c5cb1107a089bfbfb6a90edbce11cbdc48d927db6d9187eeac85746c2eeb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a79434f75a3d5c95c7fd7fcdddd87dc3e5c5327844d22b3997e18f9a31a920e
[INFO] running `Command { std: "docker" "start" "-a" "3a79434f75a3d5c95c7fd7fcdddd87dc3e5c5327844d22b3997e18f9a31a920e", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `ident`
[INFO] [stdout]   --> tests/from_generics.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub ident: syn::Ident,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `darling`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name accrue_errors --edition=2018 tests/accrue_errors.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="suggestions"' -C metadata=f5b71f53c635519c -C extra-filename=-f5b71f53c635519c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern darling=/opt/rustwide/target/debug/deps/libdarling-99305b5c8dedf307.rlib --extern darling_core=/opt/rustwide/target/debug/deps/libdarling_core-39645d149bbbe880.rlib --extern darling_macro=/opt/rustwide/target/debug/deps/libdarling_macro-003cd47aaf927a2d.so --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d190bd29f5c7dab7.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-df45d79ca593db9a.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-44e8e5016722e09d.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3a79434f75a3d5c95c7fd7fcdddd87dc3e5c5327844d22b3997e18f9a31a920e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a79434f75a3d5c95c7fd7fcdddd87dc3e5c5327844d22b3997e18f9a31a920e", kill_on_drop: false }`
[INFO] [stdout] 3a79434f75a3d5c95c7fd7fcdddd87dc3e5c5327844d22b3997e18f9a31a920e