[INFO] fetching crate pallet-randomness-collective-flip 2.0.0-rc4...
[INFO] checking pallet-randomness-collective-flip-2.0.0-rc4 against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323
[INFO] extracting crate pallet-randomness-collective-flip 2.0.0-rc4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate pallet-randomness-collective-flip 2.0.0-rc4 on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pallet-randomness-collective-flip 2.0.0-rc4
[INFO] finished tweaking crates.io crate pallet-randomness-collective-flip 2.0.0-rc4
[INFO] tweaked toml for crates.io crate pallet-randomness-collective-flip 2.0.0-rc4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fae2ac6c9473f2b95622166e403d4ee44c124bfbc8695567e6116d27c79e4f7e
[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" "fae2ac6c9473f2b95622166e403d4ee44c124bfbc8695567e6116d27c79e4f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae2ac6c9473f2b95622166e403d4ee44c124bfbc8695567e6116d27c79e4f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae2ac6c9473f2b95622166e403d4ee44c124bfbc8695567e6116d27c79e4f7e", kill_on_drop: false }`
[INFO] [stdout] fae2ac6c9473f2b95622166e403d4ee44c124bfbc8695567e6116d27c79e4f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--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] 8034f659f4309b8cc782e5483d3e146802a0e3e40c2770dcc7a273412ca3915d
[INFO] running `Command { std: "docker" "start" "-a" "8034f659f4309b8cc782e5483d3e146802a0e3e40c2770dcc7a273412ca3915d", kill_on_drop: false }`
[INFO] [stderr]     Checking safe-mix v1.0.1
[INFO] [stderr]     Checking frame-system v2.0.0-rc4
[INFO] [stderr]     Checking pallet-randomness-collective-flip v2.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `sp_core`
[INFO] [stdout]    --> src/lib.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 |     use sp_core::H256;
[INFO] [stdout]     |         ^^^^^^^ use of undeclared type or module `sp_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `sp_io`
[INFO] [stdout]    --> src/lib.rs:190:23
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn new_test_ext() -> sp_io::TestExternalities {
[INFO] [stdout]     |                          ^^^^^ use of undeclared type or module `sp_io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pallet-randomness-collective-flip`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8034f659f4309b8cc782e5483d3e146802a0e3e40c2770dcc7a273412ca3915d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8034f659f4309b8cc782e5483d3e146802a0e3e40c2770dcc7a273412ca3915d", kill_on_drop: false }`
[INFO] [stdout] 8034f659f4309b8cc782e5483d3e146802a0e3e40c2770dcc7a273412ca3915d