[INFO] fetching crate pallet-randomness-collective-flip 3.0.0...
[INFO] checking pallet-randomness-collective-flip-3.0.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate pallet-randomness-collective-flip 3.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pallet-randomness-collective-flip 3.0.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pallet-randomness-collective-flip 3.0.0
[INFO] finished tweaking crates.io crate pallet-randomness-collective-flip 3.0.0
[INFO] tweaked toml for crates.io crate pallet-randomness-collective-flip 3.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 889dc0cd9c0ac67a23d59a381a6e24a1a2a0aced39b47069f063e6a11cea3084
[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" "889dc0cd9c0ac67a23d59a381a6e24a1a2a0aced39b47069f063e6a11cea3084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889dc0cd9c0ac67a23d59a381a6e24a1a2a0aced39b47069f063e6a11cea3084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889dc0cd9c0ac67a23d59a381a6e24a1a2a0aced39b47069f063e6a11cea3084", kill_on_drop: false }`
[INFO] [stdout] 889dc0cd9c0ac67a23d59a381a6e24a1a2a0aced39b47069f063e6a11cea3084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e38f227934fc578ea8a59e394a70f05dc8628e16f91ec234894a553d90f0abd4
[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" "e38f227934fc578ea8a59e394a70f05dc8628e16f91ec234894a553d90f0abd4", kill_on_drop: false }`
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking safe-mix v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking trie-root v0.16.0
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[INFO] [stderr]    Compiling serde_derive v1.0.125
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[INFO] [stderr]     Checking rand_pcg v0.2.1
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[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling sp-debug-derive v3.0.0
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling frame-support-procedural-tools-derive v3.0.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling Inflector v0.11.4
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[INFO] [stderr]     Checking sp-arithmetic v3.0.0
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[INFO] [stderr]     Checking sp-externalities v0.9.0
[INFO] [stderr]     Checking parity-util-mem v0.9.0
[INFO] [stderr]     Checking sp-runtime-interface v3.0.0
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[INFO] [stderr]     Checking sp-core v3.0.0
[INFO] [stderr]     Checking sp-trie v3.0.0
[INFO] [stderr]     Checking sp-keystore v0.9.0
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[INFO] [stderr]     Checking sp-state-machine v0.9.0
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[INFO] [stderr]     Checking sp-version v3.0.0
[INFO] [stderr]     Checking frame-support v3.0.0
[INFO] [stderr]     Checking frame-system v3.0.0
[INFO] [stderr]     Checking pallet-randomness-collective-flip v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `serde`
[INFO] [stdout]    --> src/lib.rs:148:2
[INFO] [stdout]     |
[INFO] [stdout] 148 | /     frame_support::construct_runtime!(
[INFO] [stdout] 149 | |         pub enum Test where
[INFO] [stdout] 150 | |             Block = Block,
[INFO] [stdout] 151 | |             NodeBlock = Block,
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |         }
[INFO] [stdout] 157 | |     );
[INFO] [stdout]     | |______^ can't find crate
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e38f227934fc578ea8a59e394a70f05dc8628e16f91ec234894a553d90f0abd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e38f227934fc578ea8a59e394a70f05dc8628e16f91ec234894a553d90f0abd4", kill_on_drop: false }`
[INFO] [stdout] e38f227934fc578ea8a59e394a70f05dc8628e16f91ec234894a553d90f0abd4