[INFO] cloning repository https://github.com/mattdean-digicatapult/distributed-learning-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattdean-digicatapult/distributed-learning-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdean-digicatapult%2Fdistributed-learning-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdean-digicatapult%2Fdistributed-learning-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 090ea5019bc45b3fb14861f2a1137bf945191907
[INFO] checking mattdean-digicatapult/distributed-learning-demo against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdean-digicatapult%2Fdistributed-learning-demo" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattdean-digicatapult/distributed-learning-demo on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattdean-digicatapult/distributed-learning-demo
[INFO] finished tweaking git repo https://github.com/mattdean-digicatapult/distributed-learning-demo
[INFO] tweaked toml for git repo https://github.com/mattdean-digicatapult/distributed-learning-demo written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mattdean-digicatapult/distributed-learning-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate.git`
[INFO] [stderr]     Updating git repository `https://github.com/Xanewok/json`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 4b09fa65b2fe60a4c63ccd306a30b525388888edfa8d986fb0a85f215f60e495
[INFO] running `Command { std: "docker" "start" "-a" "4b09fa65b2fe60a4c63ccd306a30b525388888edfa8d986fb0a85f215f60e495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b09fa65b2fe60a4c63ccd306a30b525388888edfa8d986fb0a85f215f60e495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b09fa65b2fe60a4c63ccd306a30b525388888edfa8d986fb0a85f215f60e495", kill_on_drop: false }`
[INFO] [stdout] 4b09fa65b2fe60a4c63ccd306a30b525388888edfa8d986fb0a85f215f60e495
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5e5398178e72c5166619c43129959afdbb0de48f8afb5b2b06c647efba8ba89
[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" "b5e5398178e72c5166619c43129959afdbb0de48f8afb5b2b06c647efba8ba89", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking sp-std v2.0.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling protobuf v2.16.2
[INFO] [stderr]    Compiling prometheus v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling alt_serde v1.0.104
[INFO] [stderr]    Compiling sysinfo v0.14.15
[INFO] [stderr]    Compiling substrate-wasm-builder-runner v1.0.6 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling sc-consensus-slots v0.8.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling generic-array v0.14.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking linked_hash_set v0.1.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling substrate-build-script-utils v2.0.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]    Compiling node-template-runtime v2.0.0-rc5 (/opt/rustwide/workdir/runtime)
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking regalloc v0.0.27
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking futures-lite v0.1.10
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking uint v0.8.3
[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling node-template v2.0.0-rc5 (/opt/rustwide/workdir/node)
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr] error: failed to run custom build command for `node-template-runtime v2.0.0-rc5 (/opt/rustwide/workdir/runtime)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/node-template-runtime-1d35602720eb14d4/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]       Updating crates.io index
[INFO] [stderr]   warning: spurious network error (2 tries remaining): failed to resolve address for github.com: Temporary failure in name resolution; class=Net (12)
[INFO] [stderr]   warning: spurious network error (1 tries remaining): failed to resolve address for github.com: Temporary failure in name resolution; class=Net (12)
[INFO] [stderr]   error: failed to get `substrate-wasm-builder` as a dependency of package `wasm-build-runner-impl v1.0.0 (/opt/rustwide/target/debug/wbuild-runner/node-template-runtime10426786226377072483)`
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     failed to load source for dependency `substrate-wasm-builder`
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     Unable to update registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     failed to fetch `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     network failure seems to have happened
[INFO] [stderr]     if a proxy or similar is necessary `net.git-fetch-with-cli` may help here
[INFO] [stderr]     https://doc.rust-lang.org/cargo/reference/config.html#netgit-fetch-with-cli
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     failed to resolve address for github.com: Temporary failure in name resolution; class=Net (12)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b5e5398178e72c5166619c43129959afdbb0de48f8afb5b2b06c647efba8ba89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5e5398178e72c5166619c43129959afdbb0de48f8afb5b2b06c647efba8ba89", kill_on_drop: false }`
[INFO] [stdout] b5e5398178e72c5166619c43129959afdbb0de48f8afb5b2b06c647efba8ba89