[INFO] fetching crate sp-runtime 2.0.0...
[INFO] checking sp-runtime-2.0.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate sp-runtime 2.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sp-runtime 2.0.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-runtime 2.0.0
[INFO] finished tweaking crates.io crate sp-runtime 2.0.0
[INFO] tweaked toml for crates.io crate sp-runtime 2.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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] 1ccf8f711e57a36344b812508c286ddc6176287c6d79c69bbb8fa505947bce15
[INFO] running `Command { std: "docker" "start" "-a" "1ccf8f711e57a36344b812508c286ddc6176287c6d79c69bbb8fa505947bce15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ccf8f711e57a36344b812508c286ddc6176287c6d79c69bbb8fa505947bce15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ccf8f711e57a36344b812508c286ddc6176287c6d79c69bbb8fa505947bce15", kill_on_drop: false }`
[INFO] [stdout] 1ccf8f711e57a36344b812508c286ddc6176287c6d79c69bbb8fa505947bce15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b439d2bdff9cfed6eca78c2321809a48f421c9af451de0c8c3f2976c11d457a4
[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" "b439d2bdff9cfed6eca78c2321809a48f421c9af451de0c8c3f2976c11d457a4", kill_on_drop: false }`
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking trie-db v0.22.1
[INFO] [stderr]     Checking trie-root v0.16.0
[INFO] [stderr]     Checking memory-db v0.24.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking sp-core v2.0.0
[INFO] [stderr]     Checking sp-trie v2.0.0
[INFO] [stderr]     Checking sp-inherents v2.0.0
[INFO] [stderr]     Checking sp-state-machine v0.8.0
[INFO] [stderr]     Checking sp-io v2.0.0
[INFO] [stderr]     Checking sp-application-crypto v2.0.0
[INFO] [stderr]     Checking sp-runtime v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate 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 crate 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 crate or module `serde_json`
[INFO] [stdout]    --> src/lib.rs:834:14
[INFO] [stdout]     |
[INFO] [stdout] 834 |         assert_eq!(serde_json::to_string(&ex).unwrap(), "\"0x1001020304\"".to_owned());
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared crate or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `sp_state_machine`
[INFO] [stdout]    --> src/lib.rs:877:17
[INFO] [stdout]     |
[INFO] [stdout] 877 |         let mut ext = sp_state_machine::BasicExternalities::default();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^ use of undeclared crate or module `sp_state_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `sp_state_machine`
[INFO] [stdout]    --> src/lib.rs:895:17
[INFO] [stdout]     |
[INFO] [stdout] 895 |         let mut ext = sp_state_machine::BasicExternalities::default();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^ use of undeclared crate or module `sp_state_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate 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 crate 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: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[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" "b439d2bdff9cfed6eca78c2321809a48f421c9af451de0c8c3f2976c11d457a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b439d2bdff9cfed6eca78c2321809a48f421c9af451de0c8c3f2976c11d457a4", kill_on_drop: false }`
[INFO] [stdout] b439d2bdff9cfed6eca78c2321809a48f421c9af451de0c8c3f2976c11d457a4