[INFO] fetching crate sp-runtime 2.0.0-rc6...
[INFO] checking sp-runtime-2.0.0-rc6 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate sp-runtime 2.0.0-rc6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sp-runtime 2.0.0-rc6 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-runtime 2.0.0-rc6
[INFO] finished tweaking crates.io crate sp-runtime 2.0.0-rc6
[INFO] tweaked toml for crates.io crate sp-runtime 2.0.0-rc6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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] fa7c6a89c709bfa63ae49ef433d91e54a02c9ef104a4419bbe15772238b2153a
[INFO] running `Command { std: "docker" "start" "-a" "fa7c6a89c709bfa63ae49ef433d91e54a02c9ef104a4419bbe15772238b2153a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa7c6a89c709bfa63ae49ef433d91e54a02c9ef104a4419bbe15772238b2153a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7c6a89c709bfa63ae49ef433d91e54a02c9ef104a4419bbe15772238b2153a", kill_on_drop: false }`
[INFO] [stdout] fa7c6a89c709bfa63ae49ef433d91e54a02c9ef104a4419bbe15772238b2153a
[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" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f4364f11d89bb1453a4c0683ce37e1a28c49c6f9999f0c037f5264d92a61fb7
[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" "4f4364f11d89bb1453a4c0683ce37e1a28c49c6f9999f0c037f5264d92a61fb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking sp-tracing v2.0.0-rc6
[INFO] [stderr]     Checking trie-db v0.22.1
[INFO] [stderr]     Checking sp-panic-handler v2.0.0-rc6
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking fixed-hash v0.6.1
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking merlin v2.0.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stderr]     Checking schnorrkel v0.9.1
[INFO] [stderr]     Checking parity-scale-codec v1.3.5
[INFO] [stderr]     Checking substrate-bip39 v0.4.2
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking sp-storage v2.0.0-rc6
[INFO] [stderr]     Checking sp-wasm-interface v2.0.0-rc6
[INFO] [stderr]     Checking sp-arithmetic v2.0.0-rc6
[INFO] [stderr]     Checking primitive-types v0.7.2
[INFO] [stderr]     Checking sp-externalities v0.8.0-rc6
[INFO] [stderr]     Checking parity-util-mem v0.7.0
[INFO] [stderr]     Checking sp-runtime-interface v2.0.0-rc6
[INFO] [stderr]     Checking memory-db v0.24.1
[INFO] [stderr]     Checking sp-core v2.0.0-rc6
[INFO] [stderr]     Checking sp-trie v2.0.0-rc6
[INFO] [stderr]     Checking sp-inherents v2.0.0-rc6
[INFO] [stderr]     Checking sp-state-machine v0.8.0-rc6
[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 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]    --> src/generic/header.rs:210:48
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let mut der = serde_json::Deserializer::new(serde_json::de::StrRead::new(num));
[INFO] [stdout]     |                                                         ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `serde_json` in `{{root}}`
[INFO] [stdout]    --> src/generic/digest.rs:440:6
[INFO] [stdout]     |
[INFO] [stdout] 440 |             ::serde_json::to_string(&digest).unwrap(),
[INFO] [stdout]     |               ^^^^^^^^^^ could not find `serde_json` in `{{root}}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]    --> src/lib.rs:831:14
[INFO] [stdout]     |
[INFO] [stdout] 831 |         assert_eq!(serde_json::to_string(&ex).unwrap(), "\"0x1001020304\"".to_owned());
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `sp_state_machine`
[INFO] [stdout]    --> src/lib.rs:874:17
[INFO] [stdout]     |
[INFO] [stdout] 874 |         let mut ext = sp_state_machine::BasicExternalities::default();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^ use of undeclared type or module `sp_state_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]    --> src/generic/header.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let mut ser = serde_json::Serializer::new(std::io::Cursor::new(&mut v));
[INFO] [stdout]     |                                           ^^^^^^^^^^ not found in `serde_json`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use crate::serde::Serializer;
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use serde::Serializer;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]    --> src/generic/header.rs:210:30
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let mut der = serde_json::Deserializer::new(serde_json::de::StrRead::new(num));
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ not found in `serde_json`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use crate::serde::Deserializer;
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use serde::Deserializer;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `&mut _: Deserializer<'_>` is not satisfied
[INFO] [stdout]    --> src/generic/header.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 81  | pub fn deserialize_number<'a, D, T: Copy + Into<U256> + TryFrom<U256>>(
[INFO] [stdout]     |        ------------------ required by a bound in this
[INFO] [stdout] 82  |     d: D,
[INFO] [stdout] 83  | ) -> Result<T, D::Error> where D: serde::Deserializer<'a> {
[INFO] [stdout]     |                                   ----------------------- required by this bound in `generic::header::deserialize_number`
[INFO] [stdout] ...
[INFO] [stdout] 211 |             deserialize_number(&mut der).unwrap()
[INFO] [stdout]     |                                -^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                the trait `Deserializer<'_>` is not implemented for `&mut _`
[INFO] [stdout]     |                                help: consider removing the leading `&`-reference
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following implementations were found:
[INFO] [stdout]               <BoolDeserializer<E> as Deserializer<'de>>
[INFO] [stdout]               <BorrowedBytesDeserializer<'de, E> as Deserializer<'de>>
[INFO] [stdout]               <BorrowedStrDeserializer<'de, E> as Deserializer<'de>>
[INFO] [stdout]               <BytesDeserializer<'a, E> as Deserializer<'de>>
[INFO] [stdout]             and 33 others
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sp-runtime`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4f4364f11d89bb1453a4c0683ce37e1a28c49c6f9999f0c037f5264d92a61fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4364f11d89bb1453a4c0683ce37e1a28c49c6f9999f0c037f5264d92a61fb7", kill_on_drop: false }`
[INFO] [stdout] 4f4364f11d89bb1453a4c0683ce37e1a28c49c6f9999f0c037f5264d92a61fb7
