[INFO] fetching crate pallet-grandpa 2.0.0-alpha.6...
[INFO] testing pallet-grandpa-2.0.0-alpha.6 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate pallet-grandpa 2.0.0-alpha.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pallet-grandpa 2.0.0-alpha.6 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pallet-grandpa 2.0.0-alpha.6
[INFO] finished tweaking crates.io crate pallet-grandpa 2.0.0-alpha.6
[INFO] tweaked toml for crates.io crate pallet-grandpa 2.0.0-alpha.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d4c98b719b69a08e3222c3b5e0351aed340a0e2bbd495a672b6bc2e03f78030
[INFO] running `"docker" "start" "-a" "9d4c98b719b69a08e3222c3b5e0351aed340a0e2bbd495a672b6bc2e03f78030"`
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling wasm-timer v0.2.4
[INFO] [stderr]    Compiling tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling sp-core v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-trie v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-inherents v2.0.0-alpha.6
[INFO] [stderr]    Compiling frame-metadata v11.0.0-alpha.6
[INFO] [stderr]    Compiling sp-finality-tracker v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-state-machine v0.8.0-alpha.6
[INFO] [stderr]    Compiling sp-io v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-application-crypto v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-runtime v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-version v2.0.0-alpha.6
[INFO] [stderr]    Compiling frame-support v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-staking v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-api v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-timestamp v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-finality-grandpa v2.0.0-alpha.6
[INFO] [stderr]    Compiling frame-system v2.0.0-alpha.6
[INFO] [stderr]    Compiling frame-benchmarking v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-finality-tracker v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-timestamp v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-session v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-grandpa v2.0.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `"docker" "inspect" "9d4c98b719b69a08e3222c3b5e0351aed340a0e2bbd495a672b6bc2e03f78030"`
[INFO] running `"docker" "rm" "-f" "9d4c98b719b69a08e3222c3b5e0351aed340a0e2bbd495a672b6bc2e03f78030"`
[INFO] [stdout] 9d4c98b719b69a08e3222c3b5e0351aed340a0e2bbd495a672b6bc2e03f78030
[INFO] running `"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" "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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bba55204b6a5b12174f9be61f27df931a929089ec0c6ff95818e29c8b9cfaa1c
[INFO] running `"docker" "start" "-a" "bba55204b6a5b12174f9be61f27df931a929089ec0c6ff95818e29c8b9cfaa1c"`
[INFO] [stderr]    Compiling pallet-grandpa v2.0.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `sp_io`
[INFO] [stderr]   --> src/mock.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use sp_io;
[INFO] [stderr]    |     ^^^^^ no `sp_io` external crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `pallet-grandpa`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bba55204b6a5b12174f9be61f27df931a929089ec0c6ff95818e29c8b9cfaa1c"`
[INFO] running `"docker" "rm" "-f" "bba55204b6a5b12174f9be61f27df931a929089ec0c6ff95818e29c8b9cfaa1c"`
[INFO] [stdout] bba55204b6a5b12174f9be61f27df931a929089ec0c6ff95818e29c8b9cfaa1c