rust: use 0.0.0 as crate versions

[ptrus]

No description provided.

[codecov]

Codecov Report

Merging #3995 (5a2be09) into master (9b936ab) will decrease coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3995      +/-   ##
==========================================
- Coverage   67.12%   67.00%   -0.12%     
==========================================
  Files         411      411              
  Lines       42082    42082              
==========================================
- Hits        28249    28199      -50     
- Misses       9847     9883      +36     
- Partials     3986     4000      +14     

Impacted Files	Coverage Δ
go/runtime/host/sandbox/sandbox.go	70.31% <0.00%> (-12.11%)	⬇️
go/common/sgx/aesm/aesm.go	62.61% <0.00%> (-6.55%)	⬇️
go/storage/api/root_cache.go	80.00% <0.00%> (-4.45%)	⬇️
go/runtime/host/sgx/sgx.go	69.23% <0.00%> (-4.40%)	⬇️
go/storage/mkvs/tree.go	86.95% <0.00%> (-4.35%)	⬇️
go/storage/mkvs/remove.go	85.56% <0.00%> (-4.13%)	⬇️
go/storage/mkvs/insert.go	87.67% <0.00%> (-4.11%)	⬇️
go/sentry/api/grpc.go	53.44% <0.00%> (-3.45%)	⬇️
...consensus/tendermint/apps/roothash/transactions.go	66.19% <0.00%> (-3.34%)	⬇️
go/oasis-node/cmd/node/node.go	54.12% <0.00%> (-1.70%)	⬇️
... and 17 more

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