[INFO] cloning repository https://github.com/migrenaa/substrate-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/migrenaa/substrate-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigrenaa%2Fsubstrate-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigrenaa%2Fsubstrate-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6572fb6e4b1368b0197d6e125b136bb935de325e
[INFO] testing migrenaa/substrate-playground against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigrenaa%2Fsubstrate-playground" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/migrenaa/substrate-playground on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/migrenaa/substrate-playground
[INFO] finished tweaking git repo https://github.com/migrenaa/substrate-playground
[INFO] tweaked toml for git repo https://github.com/migrenaa/substrate-playground written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/migrenaa/substrate-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4179c9acf3224019a087b856181c9974d1326072decafca031cb846801f05bea
[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" "4179c9acf3224019a087b856181c9974d1326072decafca031cb846801f05bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4179c9acf3224019a087b856181c9974d1326072decafca031cb846801f05bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4179c9acf3224019a087b856181c9974d1326072decafca031cb846801f05bea", kill_on_drop: false }`
[INFO] [stdout] 4179c9acf3224019a087b856181c9974d1326072decafca031cb846801f05bea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4725d51d4c8c3d7448a04dcbf1753bc3a76131c80b9439a8ecfecbfda7b1e6cb
[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" "4725d51d4c8c3d7448a04dcbf1753bc3a76131c80b9439a8ecfecbfda7b1e6cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling wast v31.0.0
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling fs-swap v0.2.5
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling rpassword v4.0.5
[INFO] [stderr]    Compiling fdlimit v0.2.1
[INFO] [stderr]    Compiling node-template v2.0.1 (/opt/rustwide/workdir/node)
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling miow v0.3.6
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling block-cipher v0.8.0
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling parity-db v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling cuckoofilter v0.3.2
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling sp-panic-handler v2.0.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling stream-cipher v0.7.1
[INFO] [stderr]    Compiling aes-soft v0.5.0
[INFO] [stderr]    Compiling polyval v0.4.5
[INFO] [stderr]    Compiling poly1305 v0.6.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling statrs v0.10.0
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling futures-task v0.3.11
[INFO] [stderr]    Compiling async-io v1.3.1
[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-0.17.0/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=8cab0d5365021fb8 -C extra-filename=-8cab0d5365021fb8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f89ae4b715176e2d.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-e7a28af79b261e75.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-30045b1706d8578e.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-c3f770d6ee2d2f2c.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" "4725d51d4c8c3d7448a04dcbf1753bc3a76131c80b9439a8ecfecbfda7b1e6cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4725d51d4c8c3d7448a04dcbf1753bc3a76131c80b9439a8ecfecbfda7b1e6cb", kill_on_drop: false }`
[INFO] [stdout] 4725d51d4c8c3d7448a04dcbf1753bc3a76131c80b9439a8ecfecbfda7b1e6cb
