Add context in name validation errors #2115

Job	Run time
Validate external types appearing in public API	55s
Clippy	1m 4s
Measure coverage	1m 11s
Check cross compilation targets	39s
Cargo Deny	15s
Feature Powerset	1m 11s
MSRV	57s
Verify that no-std modes do not rely on libstd (--no-default-features)	15s
Verify that no-std modes do not rely on libstd (--no-default-features --features alloc)	14s
Cargo Package	55s
Check for documentation errors (stable)	1m 1s
Check for documentation errors (beta)	58s
Check for documentation errors (nightly)	57s
Format	12s
Check semver compatibility	55s
Build+test (--all-features, stable)	1m 19s
Build+test (stable, ubuntu-latest)	49s
Build+test (--features=alloc, stable, ubuntu-latest)	49s
Build+test (--no-default-features, stable, ubuntu-latest)	38s
Build+test (--no-default-features --features alloc,std, stable, ubuntu-latest)	34s
Build+test (--all-features, --release, stable, ubuntu-latest)	1m 58s
Build+test (--all-features, nightly, ubuntu-latest)	1m 12s
Build+test (--all-features, beta, ubuntu-latest)	1m 13s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, macos-latest)	57s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, windows-latest)	3m 49s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, ubuntu-latest)	53s
	25m 50s

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