[INFO] fetching crate pallet-contracts-rpc 0.8.0-alpha.6...
[INFO] testing pallet-contracts-rpc-0.8.0-alpha.6 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate pallet-contracts-rpc 0.8.0-alpha.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pallet-contracts-rpc 0.8.0-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-contracts-rpc 0.8.0-alpha.6
[INFO] finished tweaking crates.io crate pallet-contracts-rpc 0.8.0-alpha.6
[INFO] tweaked toml for crates.io crate pallet-contracts-rpc 0.8.0-alpha.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 0a054066d16803d75b4a826c31c0be9bae9bbd7c55c74302a985860f039cafe5
[INFO] running `"docker" "start" "-a" "0a054066d16803d75b4a826c31c0be9bae9bbd7c55c74302a985860f039cafe5"`
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling unsigned-varint v0.3.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling bs58 v0.3.0
[INFO] [stderr]    Compiling untrusted v0.7.0
[INFO] [stderr]    Compiling data-encoding v2.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling ring v0.16.12
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling blake2s_simd v0.5.10
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling uint v0.8.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling fixed-hash v0.6.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling multihash v0.10.1
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling trie-db v0.20.1
[INFO] [stderr]    Compiling lru v0.4.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0-alpha.6
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling libp2p-core-derive v0.18.0
[INFO] [stderr]    Compiling zeroize v1.1.0
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling paste v0.1.10
[INFO] [stderr]    Compiling asn1_der v0.6.3
[INFO] [stderr]    Compiling curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling merlin v2.0.0
[INFO] [stderr]    Compiling tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.15
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling pin-project v0.4.9
[INFO] [stderr]    Compiling prometheus v0.8.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling substrate-bip39 v0.4.1
[INFO] [stderr]    Compiling multistream-select v0.8.0
[INFO] [stderr]    Compiling rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling wasm-timer v0.2.4
[INFO] [stderr]    Compiling sp-utils v2.0.0-alpha.6
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling libp2p-core v0.18.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling impl-serde v0.3.0
[INFO] [stderr]    Compiling impl-serde v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling parity-multiaddr v0.8.0
[INFO] [stderr]    Compiling sp-storage v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-externalities v0.8.0-alpha.6
[INFO] [stderr]    Compiling jsonrpc-core v14.1.0
[INFO] [stderr]    Compiling futures-diagnose v1.0.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.0
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-api-proc-macro v2.0.0-alpha.6
[INFO] [stderr]    Compiling jsonrpc-derive v14.0.5
[INFO] [stderr]    Compiling jsonrpc-pubsub v14.1.0
[INFO] [stderr]    Compiling jsonrpc-client-transports v14.1.0
[INFO] [stderr]    Compiling libp2p-swarm v0.18.1
[INFO] [stderr]    Compiling jsonrpc-core-client v14.1.0
[INFO] [stderr]    Compiling libp2p v0.18.1
[INFO] [stderr]    Compiling parity-scale-codec v1.3.0
[INFO] [stderr]    Compiling impl-codec v0.4.2
[INFO] [stderr]    Compiling sp-wasm-interface v2.0.0-alpha.6
[INFO] [stderr]    Compiling primitive-types v0.7.0
[INFO] [stderr]    Compiling parity-util-mem v0.6.1
[INFO] [stderr]    Compiling sp-runtime-interface v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-arithmetic v2.0.0-alpha.6
[INFO] [stderr]    Compiling memory-db v0.20.1
[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 sp-rpc 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 pallet-contracts-primitives v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-api v2.0.0-alpha.6
[INFO] [stderr]    Compiling sp-consensus v0.8.0-alpha.6
[INFO] [stderr]    Compiling sp-block-builder v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-contracts-rpc-runtime-api v0.8.0-alpha.6
[INFO] [stderr]    Compiling sp-blockchain v2.0.0-alpha.6
[INFO] [stderr]    Compiling pallet-contracts-rpc v0.8.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 33s
[INFO] running `"docker" "inspect" "0a054066d16803d75b4a826c31c0be9bae9bbd7c55c74302a985860f039cafe5"`
[INFO] running `"docker" "rm" "-f" "0a054066d16803d75b4a826c31c0be9bae9bbd7c55c74302a985860f039cafe5"`
[INFO] [stdout] 0a054066d16803d75b4a826c31c0be9bae9bbd7c55c74302a985860f039cafe5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 988c39873544fe2ef024aa30fd671a3a5e711453edd065e209c5ede87bda1217
[INFO] running `"docker" "start" "-a" "988c39873544fe2ef024aa30fd671a3a5e711453edd065e209c5ede87bda1217"`
[INFO] [stderr]    Compiling pallet-contracts-rpc v0.8.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]    --> src/lib.rs:287:37
[INFO] [stderr]     |
[INFO] [stderr] 287 |             let res: RpcContractExecResult = serde_json::from_str(expected).unwrap();
[INFO] [stderr]     |                                              ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]    --> src/lib.rs:288:17
[INFO] [stderr]     |
[INFO] [stderr] 288 |             let actual = serde_json::to_string(&res).unwrap();
[INFO] [stderr]     |                          ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `pallet-contracts-rpc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "988c39873544fe2ef024aa30fd671a3a5e711453edd065e209c5ede87bda1217"`
[INFO] running `"docker" "rm" "-f" "988c39873544fe2ef024aa30fd671a3a5e711453edd065e209c5ede87bda1217"`
[INFO] [stdout] 988c39873544fe2ef024aa30fd671a3a5e711453edd065e209c5ede87bda1217