[INFO] cloning repository https://github.com/SubstrateDevAcademy/v1-exercise-4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SubstrateDevAcademy/v1-exercise-4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSubstrateDevAcademy%2Fv1-exercise-4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSubstrateDevAcademy%2Fv1-exercise-4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2033c04bacc91f0e125dd70e67b7200209b1cd0
[INFO] checking SubstrateDevAcademy/v1-exercise-4/d2033c04bacc91f0e125dd70e67b7200209b1cd0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSubstrateDevAcademy%2Fv1-exercise-4" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SubstrateDevAcademy/v1-exercise-4 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SubstrateDevAcademy/v1-exercise-4
[INFO] finished tweaking git repo https://github.com/SubstrateDevAcademy/v1-exercise-4
[INFO] tweaked toml for git repo https://github.com/SubstrateDevAcademy/v1-exercise-4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SubstrateDevAcademy/v1-exercise-4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd2e26f52c8af99618dfc2ffbb33ad1532e4e419b604aa30f6060153416abae0
[INFO] running `Command { std: "docker" "start" "-a" "cd2e26f52c8af99618dfc2ffbb33ad1532e4e419b604aa30f6060153416abae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd2e26f52c8af99618dfc2ffbb33ad1532e4e419b604aa30f6060153416abae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2e26f52c8af99618dfc2ffbb33ad1532e4e419b604aa30f6060153416abae0", kill_on_drop: false }`
[INFO] [stdout] cd2e26f52c8af99618dfc2ffbb33ad1532e4e419b604aa30f6060153416abae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac66f65cf59ef92e792fd8fb9fc17db49ad0f3e95a7ebb4c0c3511e6ea6f307b
[INFO] running `Command { std: "docker" "start" "-a" "ac66f65cf59ef92e792fd8fb9fc17db49ad0f3e95a7ebb4c0c3511e6ea6f307b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
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[INFO] [stderr]     Checking cfg-if v0.1.10
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[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking chacha20 v0.5.0
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[INFO] [stderr]     Checking chacha20poly1305 v0.6.0
[INFO] [stderr]    Compiling minicbor-derive v0.4.1
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[INFO] [stderr]    Compiling async-trait v0.1.42
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[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]     Checking thiserror v1.0.23
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[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling hex-literal v0.3.1
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[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
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[INFO] [stderr]    Compiling unicode-width v0.1.8
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[INFO] [stderr]     Checking nalgebra v0.18.1
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[INFO] [stderr]    Compiling pest v2.1.3
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[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking mio-named-pipes v0.1.7
[INFO] [stderr]     Checking miow v0.3.6
[INFO] [stderr]     Checking tokio-named-pipes v0.1.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]     Checking sha-1 v0.8.2
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[INFO] [stderr]    Compiling parity-wasm v0.32.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]    Compiling walkdir v2.3.1
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[INFO] [stderr]    Compiling semver-parser v0.10.2
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[INFO] [stderr]     Checking owning_ref v0.4.1
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[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking retain_mut v0.1.2
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking safe-mix v1.0.1
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[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking intervalier v0.4.0
[INFO] [stderr]     Checking threadpool v1.8.1
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[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
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[INFO] [stderr]     Checking exit-future v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling sc-consensus-slots v0.8.1
[INFO] [stderr]    Compiling platforms v0.2.1
[INFO] [stderr]    Compiling wasm-gc-api v0.1.11
[INFO] [stderr]    Compiling substrate-build-script-utils v2.0.1
[INFO] [stderr]     Checking rpassword v4.0.5
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[INFO] [stderr]     Checking fdlimit v0.2.1
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking impl-serde v0.3.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking parity-multiaddr v0.9.7
[INFO] [stderr]     Checking cranelift-entity v0.66.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking cranelift-bforest v0.66.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.66.0
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[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking erased-serde v0.3.13
[INFO] [stderr]     Checking sp-serializer v2.0.1
[INFO] [stderr]     Checking jsonrpc-core v15.1.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking jsonrpc-pubsub v15.1.0
[INFO] [stderr]     Checking jsonrpc-server-utils v15.1.0
[INFO] [stderr]    Compiling frame-support-procedural-tools v2.0.1
[INFO] [stderr]     Checking sp-chain-spec v2.0.1
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking jsonrpc-client-transports v15.1.0
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]    Compiling cargo-platform v0.1.1
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.2
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v2.0.1
[INFO] [stderr]    Compiling sp-api-proc-macro v2.0.1
[INFO] [stderr]    Compiling frame-support-procedural v2.0.1
[INFO] [stderr]     Checking jsonrpc-core-client v15.1.0
[INFO] [stderr]    Compiling jsonrpc-derive v15.1.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling libp2p-core v0.22.1
[INFO] [stderr]    Compiling libp2p-noise v0.24.0
[INFO] [stderr]    Compiling libp2p-gossipsub v0.22.0
[INFO] [stderr]    Compiling libp2p-identify v0.22.0
[INFO] [stderr]    Compiling libp2p-plaintext v0.22.0
[INFO] [stderr]    Compiling libp2p-floodsub v0.22.0
[INFO] [stderr]    Compiling libp2p-kad v0.23.0
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]    Compiling sc-network v0.8.1
[INFO] [stderr] error: could not compile `nalgebra` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/b0696a5160711c068cb1f01b7437db7990d15750/bin/rustc --crate-name nalgebra --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/nalgebra-0.18.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="matrixmultiply"' --cfg 'feature="std"' -C metadata=fa2be46a7ab22fce -C extra-filename=-fa2be46a7ab22fce --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-ab132c936743adb7.rmeta --extern approx=/opt/rustwide/target/debug/deps/libapprox-259093ac65873d87.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-c912f5ddc846d86e.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-fe31275892e51ea6.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-a0753644370aae9d.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ddd814d2210ca745.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-603175320f1bf3d5.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-1af172a038ef126b.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-cc9ba260e9bedad3.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" "ac66f65cf59ef92e792fd8fb9fc17db49ad0f3e95a7ebb4c0c3511e6ea6f307b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac66f65cf59ef92e792fd8fb9fc17db49ad0f3e95a7ebb4c0c3511e6ea6f307b", kill_on_drop: false }`
[INFO] [stdout] ac66f65cf59ef92e792fd8fb9fc17db49ad0f3e95a7ebb4c0c3511e6ea6f307b
