[INFO] cloning repository https://github.com/gautamdhameja/substrate-inherents-sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gautamdhameja/substrate-inherents-sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgautamdhameja%2Fsubstrate-inherents-sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgautamdhameja%2Fsubstrate-inherents-sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8ee6bf518d2fbafff9ae91f5ad427279e13b314
[INFO] testing gautamdhameja/substrate-inherents-sample against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgautamdhameja%2Fsubstrate-inherents-sample" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gautamdhameja/substrate-inherents-sample on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gautamdhameja/substrate-inherents-sample
[INFO] finished tweaking git repo https://github.com/gautamdhameja/substrate-inherents-sample
[INFO] tweaked toml for git repo https://github.com/gautamdhameja/substrate-inherents-sample written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gautamdhameja/substrate-inherents-sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0a6db368b688a62d7c88df0d9ee09dc234d0ea632cbdfc35b65d7e52b374cde
[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" "f0a6db368b688a62d7c88df0d9ee09dc234d0ea632cbdfc35b65d7e52b374cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0a6db368b688a62d7c88df0d9ee09dc234d0ea632cbdfc35b65d7e52b374cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0a6db368b688a62d7c88df0d9ee09dc234d0ea632cbdfc35b65d7e52b374cde", kill_on_drop: false }`
[INFO] [stdout] f0a6db368b688a62d7c88df0d9ee09dc234d0ea632cbdfc35b65d7e52b374cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] 816e004b01c3d98d78d3ae17695bebcf87f56099685f308f7fadaf747f6978ca
[INFO] running `Command { std: "docker" "start" "-a" "816e004b01c3d98d78d3ae17695bebcf87f56099685f308f7fadaf747f6978ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]    Compiling protobuf v2.4.2
[INFO] [stderr]    Compiling sysinfo v0.8.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling fs-swap v0.2.4
[INFO] [stderr]    Compiling fdlimit v0.1.1
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling sr-std v1.0.0 (https://github.com/paritytech/substrate.git?rev=59d5ec144704cec017a01f3e4dbb6b73c5542bf7#59d5ec14)
[INFO] [stderr]    Compiling sr-io v1.0.0 (https://github.com/paritytech/substrate.git?rev=59d5ec144704cec017a01f3e4dbb6b73c5542bf7#59d5ec14)
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling impl-serde v0.1.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling wasmi v0.4.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling hyper v0.10.15
[INFO] [stderr]    Compiling substrate-serializer v1.0.0 (https://github.com/paritytech/substrate.git?rev=59d5ec144704cec017a01f3e4dbb6b73c5542bf7#59d5ec14)
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling globset v0.4.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling sha3 v0.8.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling twox-hash v1.1.2
[INFO] [stderr]    Compiling trie-db v0.12.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling libsecp256k1 v0.2.2
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.3
[INFO] [stderr]    Compiling fixed-hash v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling vergen v3.0.4
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling rw-stream-sink v0.1.1
[INFO] [stderr]    Compiling cuckoofilter v0.3.2
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.11.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=d35312d2453042d8 -C extra-filename=-d35312d2453042d8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-be708b057de9c1af.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-ff4394a7ba76e8a0.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-9fae3bf7b804ce44.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-db8f1174cd903021.rmeta --cap-lints allow --cap-lints=warn` (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" "816e004b01c3d98d78d3ae17695bebcf87f56099685f308f7fadaf747f6978ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "816e004b01c3d98d78d3ae17695bebcf87f56099685f308f7fadaf747f6978ca", kill_on_drop: false }`
[INFO] [stdout] 816e004b01c3d98d78d3ae17695bebcf87f56099685f308f7fadaf747f6978ca