src/tools/rustfmt/tests/source/issue-2869.rs

// rustfmt-struct_field_align_threshold: 50

#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "PascalCase")]
struct AuditLog1 {
    creation_time: String,
    id: String,
    operation: String,
    organization_id: String,
    record_type: u32,
    result_status: Option<String>,
    #[serde(rename = "ClientIP")]
    client_ip: Option<IpAddr>,
    object_id: String,
    actor: Option<Vec<IDType>>,
    actor_context_id: Option<String>,
    actor_ip_address: Option<IpAddr>,
    azure_active_directory_event_type: Option<u8>,

    #[serde(rename = "very")]
    aaaaa: String,
    #[serde(rename = "cool")]
    bb: i32,
}

#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "PascalCase")]
struct AuditLog2 {
    creation_time: String,
    id: String,
    operation: String,
    organization_id: String,
    record_type: u32,
    result_status: Option<String>,
    client_ip: Option<IpAddr>,
    object_id: String,
    actor: Option<Vec<IDType>>,
    actor_context_id: Option<String>,
    actor_ip_address: Option<IpAddr>,
    azure_active_directory_event_type: Option<u8>,
}