[INFO] cloning repository https://github.com/saingsab/makchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saingsab/makchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaingsab%2Fmakchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaingsab%2Fmakchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cafeeaa4443179f4e19ff61021274d69eda1fb8
[INFO] documenting saingsab/makchain against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaingsab%2Fmakchain" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saingsab/makchain on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saingsab/makchain
[INFO] finished tweaking git repo https://github.com/saingsab/makchain
[INFO] tweaked toml for git repo https://github.com/saingsab/makchain written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/saingsab/makchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-08-01" "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] 0e4699b1b8e1f739d6ace75fbd124ddab76302a2387b61b2a20fe37a199ba4a3
[INFO] running `Command { std: "docker" "start" "-a" "0e4699b1b8e1f739d6ace75fbd124ddab76302a2387b61b2a20fe37a199ba4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e4699b1b8e1f739d6ace75fbd124ddab76302a2387b61b2a20fe37a199ba4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e4699b1b8e1f739d6ace75fbd124ddab76302a2387b61b2a20fe37a199ba4a3", kill_on_drop: false }`
[INFO] [stdout] 0e4699b1b8e1f739d6ace75fbd124ddab76302a2387b61b2a20fe37a199ba4a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 165657cc0086eadd38398bdf193da7f49fe05c205f7b934432b61197ce13e602
[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" "165657cc0086eadd38398bdf193da7f49fe05c205f7b934432b61197ce13e602", kill_on_drop: false }`
[INFO] [stderr]     Checking sp-std v2.0.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]    Compiling protobuf v2.16.2
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling substrate-wasm-builder-runner v1.0.6 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]    Compiling sysinfo v0.14.15
[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 tracing-core v0.1.11
[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]     Checking libflate v1.0.2
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.1
[INFO] [stderr]    Compiling frame-support-procedural-tools-derive v2.0.0-rc5 (https://github.com/paritytech/substrate.git?tag=v2.0.0-rc5#e00d78cb)
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]    Compiling wasmtime-runtime v0.19.0
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.65
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking strum v0.16.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling node-template v2.0.0-rc5 (/opt/rustwide/workdir/node)
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]    Compiling node-template-runtime v2.0.0-rc5 (/opt/rustwide/workdir/runtime)
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking file-per-thread-logger v0.1.3
[INFO] [stderr] error: could not compile `prost-derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name prost_derive --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.6.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=50c3c3da9f9ee928 -C extra-filename=-50c3c3da9f9ee928 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-d5edef70df23c3d3.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-41730aa64b272a39.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b06d46241978c245.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-7ba34f0ef351caa1.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-529b6ecfcee81626.rlib --extern proc_macro --cap-lints allow` (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" "165657cc0086eadd38398bdf193da7f49fe05c205f7b934432b61197ce13e602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165657cc0086eadd38398bdf193da7f49fe05c205f7b934432b61197ce13e602", kill_on_drop: false }`
[INFO] [stdout] 165657cc0086eadd38398bdf193da7f49fe05c205f7b934432b61197ce13e602
