[INFO] fetching crate sp-rpc 2.0.0... [INFO] checking sp-rpc-2.0.0 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243 [INFO] extracting crate sp-rpc 2.0.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate sp-rpc 2.0.0 on toolchain 81275a1445c7502a974118e0c69b795ab60be991 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate sp-rpc 2.0.0 [INFO] finished tweaking crates.io crate sp-rpc 2.0.0 [INFO] tweaked toml for crates.io crate sp-rpc 2.0.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7911ec2c12c0528299c5fb9cd9eefd0048df04efb4bdd975fe6898c78e6f48d7 [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" "7911ec2c12c0528299c5fb9cd9eefd0048df04efb4bdd975fe6898c78e6f48d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7911ec2c12c0528299c5fb9cd9eefd0048df04efb4bdd975fe6898c78e6f48d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7911ec2c12c0528299c5fb9cd9eefd0048df04efb4bdd975fe6898c78e6f48d7", kill_on_drop: false }` [INFO] [stdout] 7911ec2c12c0528299c5fb9cd9eefd0048df04efb4bdd975fe6898c78e6f48d7 [INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "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] b845a94dc6b67205ae69537dd54db4fffda7c9b465962fe73da101bea6b66912 [INFO] running `Command { std: "docker" "start" "-a" "b845a94dc6b67205ae69537dd54db4fffda7c9b465962fe73da101bea6b66912", kill_on_drop: false }` [INFO] [stderr] Checking futures-sink v0.3.8 [INFO] [stderr] Checking futures-io v0.3.8 [INFO] [stderr] Compiling parity-util-mem v0.7.0 [INFO] [stderr] Checking bitvec v0.17.4 [INFO] [stderr] Checking log v0.4.11 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking uint v0.8.5 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling tracing-attributes v0.1.11 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Checking serde v1.0.118 [INFO] [stderr] Checking pbkdf2 v0.3.0 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking ref-cast v1.0.3 [INFO] [stderr] Checking dyn-clonable v0.9.0 [INFO] [stderr] Checking zeroize v1.2.0 [INFO] [stderr] Checking futures-channel v0.3.8 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking fixed-hash v0.6.1 [INFO] [stderr] Checking sha2 v0.8.2 [INFO] [stderr] Checking sha2 v0.9.2 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking merlin v2.0.0 [INFO] [stderr] Checking curve25519-dalek v2.1.0 [INFO] [stderr] Checking curve25519-dalek v3.0.0 [INFO] [stderr] Checking secrecy v0.6.0 [INFO] [stderr] Checking tracing-log v0.1.1 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Checking tiny-bip39 v0.7.3 [INFO] [stderr] Checking libsecp256k1 v0.3.5 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking schnorrkel v0.9.1 [INFO] [stderr] Checking tracing v0.1.22 [INFO] [stderr] Checking substrate-bip39 v0.4.2 [INFO] [stderr] Checking pin-project v1.0.2 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking impl-serde v0.3.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Checking serde_json v1.0.60 [INFO] [stderr] Checking ed25519-dalek v1.0.1 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Checking tracing-subscriber v0.2.15 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling parity-scale-codec-derive v1.2.2 [INFO] [stderr] Compiling sp-runtime-interface-proc-macro v2.0.0 [INFO] [stderr] Checking futures-executor v0.3.8 [INFO] [stderr] Checking futures v0.3.8 [INFO] [stderr] Checking parity-scale-codec v1.3.5 [INFO] [stderr] Checking impl-codec v0.4.2 [INFO] [stderr] Checking sp-storage v2.0.0 [INFO] [stderr] Checking sp-tracing v2.0.0 [INFO] [stderr] Checking sp-wasm-interface v2.0.0 [INFO] [stderr] Checking primitive-types v0.7.3 [INFO] [stderr] Checking sp-externalities v0.8.0 [INFO] [stderr] Checking sp-runtime-interface v2.0.0 [INFO] [stderr] Checking sp-core v2.0.0 [INFO] [stderr] Checking sp-rpc v2.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde_json` [INFO] [stdout] --> src/lib.rs:31:3 [INFO] [stdout] | [INFO] [stdout] 31 | serde_json::from_str::(s).unwrap(), [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 `serde_json` [INFO] [stdout] --> src/lib.rs:35:3 [INFO] [stdout] | [INFO] [stdout] 35 | serde_json::to_string(&expected).unwrap(), [INFO] [stdout] | ^^^^^^^^^^ use of undeclared crate or module `serde_json` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 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-rpc` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "b845a94dc6b67205ae69537dd54db4fffda7c9b465962fe73da101bea6b66912", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b845a94dc6b67205ae69537dd54db4fffda7c9b465962fe73da101bea6b66912", kill_on_drop: false }` [INFO] [stdout] b845a94dc6b67205ae69537dd54db4fffda7c9b465962fe73da101bea6b66912