[INFO] fetching crate pallet-staking 2.0.0-alpha.7...
[INFO] checking pallet-staking-2.0.0-alpha.7 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate pallet-staking 2.0.0-alpha.7 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate pallet-staking 2.0.0-alpha.7 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pallet-staking 2.0.0-alpha.7
[INFO] finished tweaking crates.io crate pallet-staking 2.0.0-alpha.7
[INFO] tweaked toml for crates.io crate pallet-staking 2.0.0-alpha.7 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7fb1f7e4ef365b4430a2abd56c1d1cd00ccc19844e299932c4b893c8ce133e5
[INFO] running `"docker" "start" "-a" "e7fb1f7e4ef365b4430a2abd56c1d1cd00ccc19844e299932c4b893c8ce133e5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0-alpha.7
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling ref-cast-impl v1.0.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling paste-impl v0.1.12
[INFO] [stderr]    Compiling frame-support-procedural-tools-derive v2.0.0-alpha.7
[INFO] [stderr]     Checking ref-cast v1.0.1
[INFO] [stderr] error: could not compile `nalgebra`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nalgebra --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.18.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="matrixmultiply"' --cfg 'feature="std"' -C metadata=77a6ab2a2752fdc7 -C extra-filename=-77a6ab2a2752fdc7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-879be609f9ff0909.rmeta --extern approx=/opt/rustwide/target/debug/deps/libapprox-553b7a6a82c935d7.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-91b98c244db7b1cf.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-5f55e976ecd57f91.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-79a98c2a2973202f.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-6a494a674c76e213.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-b2ac922a1760367a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7392a26ce91d1d98.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-419f22d6ef46313b.rmeta --cap-lints allow --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 `"docker" "inspect" "e7fb1f7e4ef365b4430a2abd56c1d1cd00ccc19844e299932c4b893c8ce133e5"`
[INFO] running `"docker" "rm" "-f" "e7fb1f7e4ef365b4430a2abd56c1d1cd00ccc19844e299932c4b893c8ce133e5"`
[INFO] [stdout] e7fb1f7e4ef365b4430a2abd56c1d1cd00ccc19844e299932c4b893c8ce133e5