[INFO] fetching crate darling 0.13.0...
[INFO] testing darling-0.13.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate darling 0.13.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate darling 0.13.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58b1e91bf6a1d99a4b132585ba965e2c6e3c7337fd0c6c170748dc334f1e887f
[INFO] running `Command { std: "docker" "start" "-a" "58b1e91bf6a1d99a4b132585ba965e2c6e3c7337fd0c6c170748dc334f1e887f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58b1e91bf6a1d99a4b132585ba965e2c6e3c7337fd0c6c170748dc334f1e887f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b1e91bf6a1d99a4b132585ba965e2c6e3c7337fd0c6c170748dc334f1e887f", kill_on_drop: false }`
[INFO] [stdout] 58b1e91bf6a1d99a4b132585ba965e2c6e3c7337fd0c6c170748dc334f1e887f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6565eb9062b09ff836ae53478bf487ad88c1026054cbcd991d7db832a2fb6829
[INFO] running `Command { std: "docker" "start" "-a" "6565eb9062b09ff836ae53478bf487ad88c1026054cbcd991d7db832a2fb6829", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[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 13.85s
[INFO] running `Command { std: "docker" "inspect" "6565eb9062b09ff836ae53478bf487ad88c1026054cbcd991d7db832a2fb6829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6565eb9062b09ff836ae53478bf487ad88c1026054cbcd991d7db832a2fb6829", kill_on_drop: false }`
[INFO] [stdout] 6565eb9062b09ff836ae53478bf487ad88c1026054cbcd991d7db832a2fb6829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8693a6c6da75d25b08f9e75b6197c09d4a92abdc8ecf7f0ec794ef3e805c0689
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8693a6c6da75d25b08f9e75b6197c09d4a92abdc8ecf7f0ec794ef3e805c0689", 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 hash_map --edition=2018 tests/hash_map.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=7036bae60b2f1fe8 -C extra-filename=-7036bae60b2f1fe8 --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" "8693a6c6da75d25b08f9e75b6197c09d4a92abdc8ecf7f0ec794ef3e805c0689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8693a6c6da75d25b08f9e75b6197c09d4a92abdc8ecf7f0ec794ef3e805c0689", kill_on_drop: false }`
[INFO] [stdout] 8693a6c6da75d25b08f9e75b6197c09d4a92abdc8ecf7f0ec794ef3e805c0689