[INFO] cloning repository https://github.com/nuclearprotocol/substrate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nuclearprotocol/substrate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearprotocol%2Fsubstrate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearprotocol%2Fsubstrate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c54d4d0b56121449cd1e9cf4eb47176b021525c1
[INFO] checking nuclearprotocol/substrate/c54d4d0b56121449cd1e9cf4eb47176b021525c1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearprotocol%2Fsubstrate" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nuclearprotocol/substrate on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nuclearprotocol/substrate
[INFO] finished tweaking git repo https://github.com/nuclearprotocol/substrate
[INFO] tweaked toml for git repo https://github.com/nuclearprotocol/substrate written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nuclearprotocol/substrate 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daaee091a636bb5b9600a42a7fb166739608f78709cc647623b0abb7c5ccfab4
[INFO] running `Command { std: "docker" "start" "-a" "daaee091a636bb5b9600a42a7fb166739608f78709cc647623b0abb7c5ccfab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daaee091a636bb5b9600a42a7fb166739608f78709cc647623b0abb7c5ccfab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daaee091a636bb5b9600a42a7fb166739608f78709cc647623b0abb7c5ccfab4", kill_on_drop: false }`
[INFO] [stdout] daaee091a636bb5b9600a42a7fb166739608f78709cc647623b0abb7c5ccfab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d4b620d98c796bc642d7b79ab97a66e14c043fb5167ac95abe6d497e962782d
[INFO] running `Command { std: "docker" "start" "-a" "6d4b620d98c796bc642d7b79ab97a66e14c043fb5167ac95abe6d497e962782d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
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[INFO] [stderr]    Compiling libm v0.2.1
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[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking region v2.1.2
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking wast v13.0.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.60
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.60
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling substrate-wasm-builder-runner v1.0.5 (/opt/rustwide/workdir/utils/wasm-builder-runner)
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking fs-swap v0.2.4
[INFO] [stderr]     Checking interleaved-ordered v0.1.1
[INFO] [stderr]     Checking parity-db v0.1.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.17/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=261eff75cee97cc7 -C extra-filename=-261eff75cee97cc7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e7763e256aa5c4e4.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2704982953ff4426.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b680059aca1bf4e1.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" "6d4b620d98c796bc642d7b79ab97a66e14c043fb5167ac95abe6d497e962782d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4b620d98c796bc642d7b79ab97a66e14c043fb5167ac95abe6d497e962782d", kill_on_drop: false }`
[INFO] [stdout] 6d4b620d98c796bc642d7b79ab97a66e14c043fb5167ac95abe6d497e962782d