[INFO] fetching crate substrate-frame-rpc-system 2.0.0-alpha.5...
[INFO] checking substrate-frame-rpc-system-2.0.0-alpha.5 against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] extracting crate substrate-frame-rpc-system 2.0.0-alpha.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate substrate-frame-rpc-system 2.0.0-alpha.5 on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate substrate-frame-rpc-system 2.0.0-alpha.5
[INFO] finished tweaking crates.io crate substrate-frame-rpc-system 2.0.0-alpha.5
[INFO] tweaked toml for crates.io crate substrate-frame-rpc-system 2.0.0-alpha.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f019f3590bb41004f64daed77f93862496c9999c3377cb14643472c8ff43379
[INFO] running `"docker" "start" "-a" "2f019f3590bb41004f64daed77f93862496c9999c3377cb14643472c8ff43379"`
[INFO] [stderr]     Checking tokio v0.2.16
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking wasm-bindgen v0.2.60
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr] error: constants of type `*mut core::ffi::c_void` cannot be used in a pattern
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wasmi-0.6.2/src/memory/mmap_bytebuf.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             libc::MAP_FAILED => Err("mmap returned an error".into()),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `wasmi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2f019f3590bb41004f64daed77f93862496c9999c3377cb14643472c8ff43379"`
[INFO] running `"docker" "rm" "-f" "2f019f3590bb41004f64daed77f93862496c9999c3377cb14643472c8ff43379"`
[INFO] [stdout] 2f019f3590bb41004f64daed77f93862496c9999c3377cb14643472c8ff43379