[INFO] fetching crate ink_metadata 6.0.0-beta.1...
[INFO] testing ink_metadata-6.0.0-beta.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate ink_metadata 6.0.0-beta.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ink_metadata 6.0.0-beta.1
[INFO] finished tweaking crates.io crate ink_metadata 6.0.0-beta.1
[INFO] tweaked toml for crates.io crate ink_metadata 6.0.0-beta.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ink_metadata 6.0.0-beta.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ink_metadata 6.0.0-beta.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9660b5e3f6bf2088c27bdfb65593ec13ee0f5897f54ea14f9d314f6bf659512a
[INFO] running `Command { std: "docker" "start" "-a" "9660b5e3f6bf2088c27bdfb65593ec13ee0f5897f54ea14f9d314f6bf659512a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9660b5e3f6bf2088c27bdfb65593ec13ee0f5897f54ea14f9d314f6bf659512a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9660b5e3f6bf2088c27bdfb65593ec13ee0f5897f54ea14f9d314f6bf659512a", kill_on_drop: false }`
[INFO] [stdout] 9660b5e3f6bf2088c27bdfb65593ec13ee0f5897f54ea14f9d314f6bf659512a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc7faefdd5743ba8b2d038c2477ce49076a243e739da2dc4ecf2b06e6c3f7dcc
[INFO] running `Command { std: "docker" "start" "-a" "cc7faefdd5743ba8b2d038c2477ce49076a243e739da2dc4ecf2b06e6c3f7dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
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[INFO] [stderr]    Compiling secp256k1 v0.28.2
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[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]    Compiling ed25519-zebra v4.1.0
[INFO] [stderr]    Compiling scale-decode-derive v0.16.0
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[INFO] [stderr]    Compiling pallet-revive-uapi v0.8.0
[INFO] [stderr]    Compiling substrate-bip39 v0.6.0
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling alloy-primitives v1.4.1
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
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[INFO] [stderr]    Compiling futures-executor v0.3.31
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[INFO] [stderr]    Compiling serdect v0.2.0
[INFO] [stderr]    Compiling impl-serde v0.5.0
[INFO] [stderr]    Compiling parity-bip39 v2.0.1
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling sec1 v0.7.3
[INFO] [stderr]    Compiling elliptic-curve v0.13.8
[INFO] [stderr]    Compiling alloy-sol-macro v1.4.1
[INFO] [stderr]    Compiling ecdsa v0.16.9
[INFO] [stderr]    Compiling alloy-sol-types v1.4.1
[INFO] [stderr]    Compiling scale-info v2.11.6
[INFO] [stderr]    Compiling sp-storage v22.0.0
[INFO] [stderr]    Compiling impl-codec v0.7.1
[INFO] [stderr]    Compiling scale-bits v0.7.0
[INFO] [stderr]    Compiling scale-encode v0.10.0
[INFO] [stderr]    Compiling k256 v0.13.4
[INFO] [stderr]    Compiling scale-decode v0.16.0
[INFO] [stderr]    Compiling sp-externalities v0.30.0
[INFO] [stderr]    Compiling bounded-collections v0.3.2
[INFO] [stderr]    Compiling primitive-types v0.13.1
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling docify_macros v0.2.9
[INFO] [stderr]    Compiling docify v0.2.9
[INFO] [stderr]    Compiling sp-core v38.1.0
[INFO] [stderr]    Compiling sp-arithmetic v28.0.0
[INFO] [stderr]    Compiling sp-weights v33.1.0
[INFO] [stderr]    Compiling ink_primitives v6.0.0-beta.1
[INFO] [stderr]    Compiling ink_metadata v6.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "cc7faefdd5743ba8b2d038c2477ce49076a243e739da2dc4ecf2b06e6c3f7dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7faefdd5743ba8b2d038c2477ce49076a243e739da2dc4ecf2b06e6c3f7dcc", kill_on_drop: false }`
[INFO] [stdout] cc7faefdd5743ba8b2d038c2477ce49076a243e739da2dc4ecf2b06e6c3f7dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 730174ff3ab1130e702660693001e784402e57658a39b82287c83398fea76df5
[INFO] running `Command { std: "docker" "start" "-a" "730174ff3ab1130e702660693001e784402e57658a39b82287c83398fea76df5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ink_metadata v6.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `pretty_assertions`
[INFO] [stdout]   --> src/tests.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use pretty_assertions::assert_eq;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `pretty_assertions`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `pretty_assertions`, use `cargo add pretty_assertions` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde_json`
[INFO] [stdout]   --> src/tests.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use serde_json::json;
[INFO] [stdout]    |     ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:334:20
[INFO] [stdout]     |
[INFO] [stdout] 334 |     let expected = serde_json::json!(
[INFO] [stdout]     |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:302:20
[INFO] [stdout]     |
[INFO] [stdout] 302 |     let expected = serde_json::json! {
[INFO] [stdout]     |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:219:20
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let expected = serde_json::json! {
[INFO] [stdout]     |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:139:20
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let expected = serde_json::json! {
[INFO] [stdout]     |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/layout/tests.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let expected = serde_json::json! {
[INFO] [stdout]    |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/layout/tests.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let expected = serde_json::json! {
[INFO] [stdout]    |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:879:31
[INFO] [stdout]     |
[INFO] [stdout] 879 |     let expected_event_spec = serde_json::json!(
[INFO] [stdout]     |                               ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:846:33
[INFO] [stdout]     |
[INFO] [stdout] 846 |     let expected_message_spec = serde_json::json!(
[INFO] [stdout]     |                                 ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:813:37
[INFO] [stdout]     |
[INFO] [stdout] 813 |     let expected_constructor_spec = serde_json::json!(
[INFO] [stdout]     |                                     ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:703:31
[INFO] [stdout]     |
[INFO] [stdout] 703 |     let expected_event_spec = serde_json::json!(
[INFO] [stdout]     |                               ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/tests.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let json = serde_json::to_value(&portable_spec).unwrap();
[INFO] [stdout]    |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/tests.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         serde_json::from_value(json.clone()).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:423:16
[INFO] [stdout]     |
[INFO] [stdout] 423 |     let json = serde_json::to_value(contract.into_portable(&mut registry)).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:597:16
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let json = serde_json::to_value(&compact_spec).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:599:9
[INFO] [stdout]     |
[INFO] [stdout] 599 |         serde_json::from_value(json.clone()).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:649:16
[INFO] [stdout]     |
[INFO] [stdout] 649 |     let json = serde_json::to_value(&compact_spec).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:651:9
[INFO] [stdout]     |
[INFO] [stdout] 651 |         serde_json::from_value(json.clone()).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:700:27
[INFO] [stdout]     |
[INFO] [stdout] 700 |     let event_spec_name = serde_json::to_value(es).unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:812:28
[INFO] [stdout]     |
[INFO] [stdout] 812 |     let constructor_spec = serde_json::to_value(&spec.constructors()[0]).unwrap();
[INFO] [stdout]     |                            ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:845:24
[INFO] [stdout]     |
[INFO] [stdout] 845 |     let message_spec = serde_json::to_value(&spec.messages()[0]).unwrap();
[INFO] [stdout]     |                        ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/tests.rs:878:22
[INFO] [stdout]     |
[INFO] [stdout] 878 |     let event_spec = serde_json::to_value(&spec.events()[0]).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/layout/tests.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let json = serde_json::to_string(&layout_key).unwrap();
[INFO] [stdout]    |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/layout/tests.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let json = serde_json::to_value(&compacted).unwrap();
[INFO] [stdout]    |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> src/layout/tests.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let json = serde_json::to_value(&compacted).unwrap();
[INFO] [stdout]    |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let json = serde_json::to_value(&compacted).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     let json = serde_json::to_value(&compacted).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:301:16
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let json = serde_json::to_value(&compacted).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> src/layout/tests.rs:333:16
[INFO] [stdout]     |
[INFO] [stdout] 333 |     let json = serde_json::to_value(&root_layout).unwrap();
[INFO] [stdout]     |                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ink_metadata` (lib test) due to 30 previous errors
[INFO] running `Command { std: "docker" "inspect" "730174ff3ab1130e702660693001e784402e57658a39b82287c83398fea76df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730174ff3ab1130e702660693001e784402e57658a39b82287c83398fea76df5", kill_on_drop: false }`
[INFO] [stdout] 730174ff3ab1130e702660693001e784402e57658a39b82287c83398fea76df5