[INFO] fetching crate laddu-physics 0.25.0...
[INFO] checking laddu-physics-0.25.0 against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] extracting crate laddu-physics 0.25.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate laddu-physics 0.25.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate laddu-physics 0.25.0
[INFO] tweaked toml for crates.io crate laddu-physics 0.25.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate laddu-physics 0.25.0 on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate laddu-physics 0.25.0 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 | homepage = "https://github.com/denehoffman/laddu"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 | repository = "https://github.com/denehoffman/laddu"
[INFO] [stderr]    |              --------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `laddu-physics` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c
[INFO] running `Command { std: "docker" "start" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 | homepage = "https://github.com/denehoffman/laddu"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 | repository = "https://github.com/denehoffman/laddu"
[INFO] [stderr]    |              --------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `laddu-physics` (manifest) generated 1 warning
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]     Checking bytemuck v1.25.2
[INFO] [stderr]    Compiling ref-cast v1.0.27
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking primal-estimate v0.3.3
[INFO] [stderr]     Checking fastrand v2.5.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.11
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking smallvec v1.16.2
[INFO] [stderr]     Checking num-integer v0.1.47
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking auto_ops v0.3.0
[INFO] [stderr]     Checking primal-bit v0.3.2
[INFO] [stderr]     Checking safe_arch v1.2.0
[INFO] [stderr]     Checking primal-sieve v0.3.7
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]     Checking fastrand-contrib v0.1.0
[INFO] [stderr]     Checking wide v1.7.1
[INFO] [stderr]     Checking factorial v0.4.0
[INFO] [stderr]     Checking maryada v0.2.1
[INFO] [stderr]    Compiling serde_derive_internals v0.30.0
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling ref-cast-impl v1.0.27
[INFO] [stderr]    Compiling thiserror-impl v2.0.21
[INFO] [stderr]    Compiling nalgebra-macros v0.3.0
[INFO] [stderr]    Compiling schemars_derive v1.2.2
[INFO] [stderr]     Checking thiserror v2.0.21
[INFO] [stderr]     Checking indexmap v2.14.2
[INFO] [stderr]     Checking serde v1.0.229
[INFO] [stderr]     Checking num-bigint v0.4.8
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking schemars v1.2.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking laddu-expr v0.25.0
[INFO] [stderr]     Checking simba v0.10.2
[INFO] [stderr]     Checking nalgebra v0.35.0
[INFO] [stderr]     Checking laddu-physics v0.25.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `laddu_compile`
[INFO] [stdout]    --> src/channel.rs:692:9
[INFO] [stdout]     |
[INFO] [stdout] 692 |     use laddu_compile::{CompileOptions, CompiledModel};
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_compile`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_compile`, use `cargo add laddu_compile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_runtime`
[INFO] [stdout]    --> src/channel.rs:693:9
[INFO] [stdout]     |
[INFO] [stdout] 693 |     use laddu_runtime::CpuBackend;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_runtime`, use `cargo add laddu_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_compile`
[INFO] [stdout]    --> src/math/functions.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     use laddu_compile::{CompileOptions, CompiledModel};
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_compile`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_compile`, use `cargo add laddu_compile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_runtime`
[INFO] [stdout]    --> src/math/functions.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 364 |     use laddu_runtime::CpuBackend;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_runtime`, use `cargo add laddu_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_compile`
[INFO] [stdout]    --> src/math/wigner.rs:548:9
[INFO] [stdout]     |
[INFO] [stdout] 548 |     use laddu_compile::CompiledModel;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_compile`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_compile`, use `cargo add laddu_compile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_runtime`
[INFO] [stdout]    --> src/math/wigner.rs:549:9
[INFO] [stdout]     |
[INFO] [stdout] 549 |     use laddu_runtime::CpuBackend;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_runtime`, use `cargo add laddu_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_compile`
[INFO] [stdout]    --> src/vectors.rs:989:9
[INFO] [stdout]     |
[INFO] [stdout] 989 |     use laddu_compile::{CompileOptions, CompiledModel};
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_compile`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_compile`, use `cargo add laddu_compile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `laddu_runtime`
[INFO] [stdout]    --> src/vectors.rs:990:9
[INFO] [stdout]     |
[INFO] [stdout] 990 |     use laddu_runtime::CpuBackend;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `laddu_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `laddu_runtime`, use `cargo add laddu_runtime` 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/channel.rs:1192:23
[INFO] [stdout]      |
[INFO] [stdout] 1192 |         let encoded = serde_json::to_string(&channel).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/channel.rs:1193:32
[INFO] [stdout]      |
[INFO] [stdout] 1193 |         let decoded: Channel = serde_json::from_str(&encoded).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/channel.rs:1225:23
[INFO] [stdout]      |
[INFO] [stdout] 1225 |         let encoded = serde_json::to_string(&channel).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/channel.rs:1226:32
[INFO] [stdout]      |
[INFO] [stdout] 1226 |         let decoded: Channel = serde_json::from_str(&encoded).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/histogram.rs:1426:20
[INFO] [stdout]      |
[INFO] [stdout] 1426 |         let json = serde_json::to_string(&unavailable).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/histogram.rs:1427:35
[INFO] [stdout]      |
[INFO] [stdout] 1427 |         let restored: Histogram = serde_json::from_str(&json).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/joint_histogram.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |             serde_json::from_str(&serde_json::to_string(&unavailable).unwrap()).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/joint_histogram.rs:529:35
[INFO] [stdout]     |
[INFO] [stdout] 529 |             serde_json::from_str(&serde_json::to_string(&unavailable).unwrap()).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/joint_histogram.rs:619:20
[INFO] [stdout]     |
[INFO] [stdout] 619 |         let json = serde_json::to_string(&histogram).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/joint_histogram.rs:620:44
[INFO] [stdout]     |
[INFO] [stdout] 620 |         let mut restored: JointHistogram = serde_json::from_str(&json).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/quantum/rules.rs:1041:27
[INFO] [stdout]      |
[INFO] [stdout] 1041 |         let policy_json = serde_json::to_string(&policy).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/quantum/rules.rs:1047:13
[INFO] [stdout]      |
[INFO] [stdout] 1047 |             serde_json::from_str::<RulePolicy>(&policy_json).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/quantum/rules.rs:1060:27
[INFO] [stdout]      |
[INFO] [stdout] 1060 |         let report_json = serde_json::to_string(&report).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/quantum/rules.rs:1066:13
[INFO] [stdout]      |
[INFO] [stdout] 1066 |             serde_json::from_str::<RuleReport>(&report_json).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/quantum/builtin.rs:841:22
[INFO] [stdout]     |
[INFO] [stdout] 841 |         let actual = serde_json::to_value(&catalog()[..]).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/quantum/builtin.rs:842:23
[INFO] [stdout]     |
[INFO] [stdout] 842 |         let expected: serde_json::Value =
[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/quantum/builtin.rs:843:13
[INFO] [stdout]     |
[INFO] [stdout] 843 |             serde_json::from_str(include_str!("fixtures/builtin_particles.json")).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[E0432]: unresolved import `serde_json`
[INFO] [stdout]   --> tests/contract_fixtures.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use serde_json::Value;
[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]   --> tests/contract_fixtures.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let expected: Value = serde_json::from_str(fixture).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]   --> tests/contract_fixtures.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     assert_eq!(serde_json::to_value(value).unwrap(), expected);
[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]   --> tests/contract_fixtures.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let decoded = serde_json::from_value::<T>(expected.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]   --> tests/contract_fixtures.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(serde_json::to_value(decoded).unwrap(), expected);
[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]   --> tests/contract_fixtures.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let schema = serde_json::to_string(&schemars::schema_for!(ScalarSource)).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 `laddu-physics` (test "contract_fixtures") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `laddu-physics` (lib test) due to 25 previous errors
[INFO] [stderr] warning: unused dependency `factorial`
[INFO] [stderr]  --> Cargo.toml:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 | [dependencies.factorial]
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `factorial`
[INFO] [stderr] warning: `laddu-physics` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c", kill_on_drop: false }`
[INFO] [stdout] e26329af72ddca537c3a06bfd4f69072bbf4a0e3ca05dedcdd7f52b216706b6c
