[INFO] fetching crate sc-rpc-api 0.8.0-rc6...
[INFO] checking sc-rpc-api-0.8.0-rc6 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate sc-rpc-api 0.8.0-rc6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sc-rpc-api 0.8.0-rc6 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sc-rpc-api 0.8.0-rc6
[INFO] finished tweaking crates.io crate sc-rpc-api 0.8.0-rc6
[INFO] tweaked toml for crates.io crate sc-rpc-api 0.8.0-rc6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", 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] 407eccb5e84059453699ca58eb2d659366da362ec2b2aa40aad227d68693ff36
[INFO] running `Command { std: "docker" "start" "-a" "407eccb5e84059453699ca58eb2d659366da362ec2b2aa40aad227d68693ff36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "407eccb5e84059453699ca58eb2d659366da362ec2b2aa40aad227d68693ff36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "407eccb5e84059453699ca58eb2d659366da362ec2b2aa40aad227d68693ff36", kill_on_drop: false }`
[INFO] [stdout] 407eccb5e84059453699ca58eb2d659366da362ec2b2aa40aad227d68693ff36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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] 6550bc182681e1f7d9ba9d1b3ae6d554f535a5d4143e8fe500eab0ad9b56390b
[INFO] running `Command { std: "docker" "start" "-a" "6550bc182681e1f7d9ba9d1b3ae6d554f535a5d4143e8fe500eab0ad9b56390b", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]    Compiling jsonrpc-derive v14.2.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking jsonrpc-core v14.2.0
[INFO] [stderr]     Checking sp-chain-spec v2.0.0-rc6
[INFO] [stderr]     Checking jsonrpc-pubsub v14.2.0
[INFO] [stderr]     Checking jsonrpc-client-transports v14.2.1
[INFO] [stderr]     Checking jsonrpc-core-client v14.2.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking sp-core v2.0.0-rc6
[INFO] [stderr]     Checking multistream-select v0.8.2
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]     Checking sp-utils v2.0.0-rc6
[INFO] [stderr]     Checking libp2p-core v0.20.1
[INFO] [stderr]     Checking sp-trie v2.0.0-rc6
[INFO] [stderr]     Checking sp-inherents v2.0.0-rc6
[INFO] [stderr]     Checking sp-rpc v2.0.0-rc6
[INFO] [stderr]     Checking libp2p-swarm v0.20.1
[INFO] [stderr]     Checking sp-state-machine v0.8.0-rc6
[INFO] [stderr]     Checking libp2p v0.23.0
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking sp-io v2.0.0-rc6
[INFO] [stderr]     Checking sp-application-crypto v2.0.0-rc6
[INFO] [stderr]     Checking sp-runtime v2.0.0-rc6
[INFO] [stderr]     Checking substrate-prometheus-endpoint v0.8.0-rc6
[INFO] [stderr]     Checking sp-version v2.0.0-rc6
[INFO] [stderr]     Checking sp-api v2.0.0-rc6
[INFO] [stderr]     Checking sp-consensus v0.8.0-rc6
[INFO] [stderr]     Checking sp-block-builder v2.0.0-rc6
[INFO] [stderr]     Checking sp-blockchain v2.0.0-rc6
[INFO] [stderr]     Checking sp-transaction-pool v2.0.0-rc6
[INFO] [stderr]     Checking sc-rpc-api v0.8.0-rc6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `jsonrpc_core::futures::Future`
[INFO] [stdout]   --> src/chain/mod.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use jsonrpc_core::futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jsonrpc_core::futures::Future`
[INFO] [stdout]   --> src/state/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use jsonrpc_core::futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jsonrpc_core::futures::Future`
[INFO] [stdout]   --> src/chain/mod.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use jsonrpc_core::futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jsonrpc_core::futures::Future`
[INFO] [stdout]   --> src/state/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use jsonrpc_core::futures::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "6550bc182681e1f7d9ba9d1b3ae6d554f535a5d4143e8fe500eab0ad9b56390b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6550bc182681e1f7d9ba9d1b3ae6d554f535a5d4143e8fe500eab0ad9b56390b", kill_on_drop: false }`
[INFO] [stdout] 6550bc182681e1f7d9ba9d1b3ae6d554f535a5d4143e8fe500eab0ad9b56390b