- Rust 1.75 (Nov 2023) too old for base64ct-1.8.0 dependency
- base64ct requires edition2024 features not in Cargo 1.75
- Local system uses Rust 1.89, need Docker parity
- Updated all 6 Dockerfile variants across 3 services
Fixes:
- ML training service Docker build
- Trading service Docker build
- Backtesting service Docker build
Related: Wave 125 Phase 3B Docker deployment