[INFO] cloning repository https://github.com/fangzhongwei/custom-babe-node
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fangzhongwei/custom-babe-node" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffangzhongwei%2Fcustom-babe-node", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffangzhongwei%2Fcustom-babe-node'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8ecc8c0a98b668037d81125c5ebe1990f9cf238
[INFO] checking fangzhongwei/custom-babe-node/a8ecc8c0a98b668037d81125c5ebe1990f9cf238 against master#568b11762723b001bfa693d0f21c5dad01d4e813 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffangzhongwei%2Fcustom-babe-node" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fangzhongwei/custom-babe-node
[INFO] finished tweaking git repo https://github.com/fangzhongwei/custom-babe-node
[INFO] tweaked toml for git repo https://github.com/fangzhongwei/custom-babe-node written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fangzhongwei/custom-babe-node on toolchain 568b11762723b001bfa693d0f21c5dad01d4e813
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fangzhongwei/custom-babe-node already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://gitee.com/expedition2020/substrate-2.0.0-rc4`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.5
[INFO] [stderr]   Downloaded tracing-attributes v0.1.8
[INFO] [stderr]   Downloaded jsonrpc-client-transports v14.2.0
[INFO] [stderr]   Downloaded predicates-core v1.0.0
[INFO] [stderr]   Downloaded send_wrapper v0.3.0
[INFO] [stderr]   Downloaded predicates v1.0.5
[INFO] [stderr]   Downloaded wasmtime-debug v0.16.0
[INFO] [stderr]   Downloaded procfs v0.7.9
[INFO] [stderr]   Downloaded bindgen v0.53.3
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.63.0
[INFO] [stderr]   Downloaded ntapi v0.3.4
[INFO] [stderr]   Downloaded webpki v0.21.3
[INFO] [stderr]   Downloaded libp2p-core v0.19.1
[INFO] [stderr]   Downloaded addr2line v0.12.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.63.0
[INFO] [stderr]   Downloaded gimli v0.20.0
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[INFO] [stderr]   Downloaded wasmparser v0.52.2
[INFO] [stderr]   Downloaded substrate-wasmtime v0.16.0-threadsafe.4
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[INFO] [stderr]   Downloaded object v0.18.0
[INFO] [stderr]   Downloaded regalloc v0.0.21
[INFO] [stderr]   Downloaded libp2p-kad v0.19.0
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[INFO] [stderr]   Downloaded assert_cmd v1.0.1
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[INFO] [stderr]   Downloaded raw-cpuid v7.0.3
[INFO] [stderr]   Downloaded cranelift-entity v0.63.0
[INFO] [stderr]   Downloaded cranelift-wasm v0.63.0
[INFO] [stderr]   Downloaded wasmparser v0.51.4
[INFO] [stderr]   Downloaded wasmtime-environ v0.16.0
[INFO] [stderr]   Downloaded multistream-select v0.8.1
[INFO] [stderr]   Downloaded bstr v0.2.13
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[INFO] [stderr]   Downloaded serde v1.0.111
[INFO] [stderr]   Downloaded kvdb-web v0.6.0
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[INFO] [stderr]   Downloaded jsonrpc-core-client v14.2.0
[INFO] [stderr]   Downloaded jsonrpc-derive v14.2.1
[INFO] [stderr]   Downloaded jsonrpc-http-server v14.2.0
[INFO] [stderr]   Downloaded jsonrpc-ipc-server v14.2.0
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[INFO] [stderr]   Downloaded faerie v0.15.0
[INFO] [stderr]   Downloaded substrate-wasmtime-jit v0.16.0-threadsafe.4
[INFO] [stderr]   Downloaded scroll_derive v0.10.2
[INFO] [stderr]   Downloaded cranelift-bforest v0.63.0
[INFO] [stderr]   Downloaded file-per-thread-logger v0.1.3
[INFO] [stderr]   Downloaded zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.2
[INFO] [stderr]   Downloaded kvdb v0.6.0
[INFO] [stderr]   Downloaded libp2p-dns v0.19.0
[INFO] [stderr]   Downloaded libp2p-identify v0.19.1
[INFO] [stderr]   Downloaded libp2p-mdns v0.19.1
[INFO] [stderr]   Downloaded libp2p-mplex v0.19.1
[INFO] [stderr]   Downloaded libp2p-noise v0.19.0
[INFO] [stderr]   Downloaded libp2p-swarm v0.19.0
[INFO] [stderr]   Downloaded libp2p-wasm-ext v0.19.0
[INFO] [stderr]   Downloaded libp2p-yamux v0.19.0
[INFO] [stderr]   Downloaded data-encoding v2.2.1
[INFO] [stderr]   Downloaded multihash v0.11.2
[INFO] [stderr]   Downloaded libp2p v0.19.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.19
[INFO] [stderr]   Downloaded thiserror v1.0.19
[INFO] [stderr]   Downloaded paste-impl v0.1.16
[INFO] [stderr]   Downloaded paste v0.1.16
[INFO] [stderr]   Downloaded pin-project-internal v0.4.20
[INFO] [stderr]   Downloaded tracing v0.1.15
[INFO] [stderr]   Downloaded serde_derive v1.0.111
[INFO] [stderr]   Downloaded parity-scale-codec v1.3.1
[INFO] [stderr]   Downloaded predicates-tree v1.0.0
[INFO] [stderr]   Downloaded console_log v0.1.2
[INFO] [stderr]   Downloaded libflate_lz77 v1.0.0
[INFO] [stderr]   Downloaded kvdb-memorydb v0.6.0
[INFO] [stderr]   Downloaded kvdb-rocksdb v0.8.0
[INFO] [stderr]   Downloaded tokio-rustls v0.13.1
[INFO] [stderr]   Downloaded jsonrpc-pubsub v14.2.0
[INFO] [stderr]   Downloaded jsonrpc-core v14.2.0
[INFO] [stderr]   Downloaded jsonrpc-server-utils v14.2.0
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded substrate-wasmtime-profiling v0.16.0-threadsafe.4
[INFO] [stderr]   Downloaded wat v1.0.22
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.63.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.63.0
[INFO] [stderr]   Downloaded hex-literal-impl v0.2.2
[INFO] [stderr]   Downloaded libp2p-ping v0.19.1
[INFO] [stderr]   Downloaded libp2p-tcp v0.19.1
[INFO] [stderr]   Downloaded memory-db v0.21.0
[INFO] [stderr]   Downloaded errno v0.2.6
[INFO] [stderr]   Downloaded zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]   Downloaded zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]   Downloaded libp2p-core-derive v0.19.1
[INFO] [stderr]   Downloaded libp2p-websocket v0.19.0
[INFO] [stderr]   Downloaded parity-multiaddr v0.9.0
[INFO] [stderr]   Downloaded clear_on_drop v0.2.4
[INFO] [stderr]   Downloaded ring v0.16.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77120c5d9270e00656441e2012af0e887f014415f88f7777acde14d0118e7a11
[INFO] running `Command { std: "docker" "start" "-a" "77120c5d9270e00656441e2012af0e887f014415f88f7777acde14d0118e7a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77120c5d9270e00656441e2012af0e887f014415f88f7777acde14d0118e7a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77120c5d9270e00656441e2012af0e887f014415f88f7777acde14d0118e7a11", kill_on_drop: false }`
[INFO] [stdout] 77120c5d9270e00656441e2012af0e887f014415f88f7777acde14d0118e7a11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26b33b52994ab239e584e7ac167a72197e58e713324771e3082d08df56772477
[INFO] running `Command { std: "docker" "start" "-a" "26b33b52994ab239e584e7ac167a72197e58e713324771e3082d08df56772477", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling proc-macro-nested v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling parity-util-mem v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]     Checking uint v0.8.3
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking errno v0.2.6
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking fixed-hash v0.6.1
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking environmental v1.1.1
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling ring v0.16.14
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking sp-std v2.0.0-rc4 (https://gitee.com/expedition2020/substrate-2.0.0-rc4?branch=2.0.0-rc4#ed24ad9a)
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling pin-project-internal v0.4.20
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]    Compiling ref-cast-impl v1.0.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0-rc4 (https://gitee.com/expedition2020/substrate-2.0.0-rc4?branch=2.0.0-rc4#ed24ad9a)
[INFO] [stderr]     Checking pin-project v0.4.20
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling paste-impl v0.1.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]     Checking ref-cast v1.0.1
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking merlin v2.0.0
[INFO] [stderr]     Checking schnorrkel v0.9.1
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking substrate-bip39 v0.4.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking trie-db v0.21.0
[INFO] [stderr]     Checking trie-root v0.16.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking integer-sqrt v0.1.3
[INFO] [stderr]     Checking paste v0.1.16
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]     Checking sp-panic-handler v2.0.0-rc4 (https://gitee.com/expedition2020/substrate-2.0.0-rc4?branch=2.0.0-rc4#ed24ad9a)
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.63
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.63
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking impl-serde v0.3.1
[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking sp-storage v2.0.0-rc4 (https://gitee.com/expedition2020/substrate-2.0.0-rc4?branch=2.0.0-rc4#ed24ad9a)
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stdout] error: using an old version of `rental`
[INFO] [stdout]   |
[INFO] [stdout]   = note: older versions of the `rental` crate no longer compile; please update to `rental` v0.5.6, or switch to one of the `rental` alternatives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr] error: could not compile `rental` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "26b33b52994ab239e584e7ac167a72197e58e713324771e3082d08df56772477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b33b52994ab239e584e7ac167a72197e58e713324771e3082d08df56772477", kill_on_drop: false }`
[INFO] [stdout] 26b33b52994ab239e584e7ac167a72197e58e713324771e3082d08df56772477
