rust: Temporarily use a patched version of failure crate

[tjanez]

This fixes an issue in the failure crate which used a private name from the quote crate which was removed in version 1.0.3+.

For more details, see:

• https://users.rust-lang.org/t/failure-derive-compilation-error/39062
• use public TokenStream instead of private rust-lang-deprecated/failure#343

[Yawning]

File a follow up issue to remove the use of the failure crate (https://users.rust-lang.org/t/failure-derive-compilation-error/39062/14) please.

[codecov]

Codecov Report

Merging #2754 into master will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2754      +/-   ##
==========================================
+ Coverage   62.74%   62.78%   +0.03%     
==========================================
  Files         384      384              
  Lines       36258    36258              
==========================================
+ Hits        22749    22763      +14     
+ Misses      10616    10599      -17     
- Partials     2893     2896       +3     

Impacted Files	Coverage Δ
go/worker/common/p2p/p2p.go	67.56% <0.00%> (-3.61%)	⬇️
go/storage/metrics.go	72.64% <0.00%> (-2.57%)	⬇️
go/storage/api/root_cache.go	70.11% <0.00%> (-2.30%)	⬇️
go/storage/database/database.go	74.56% <0.00%> (-1.76%)	⬇️
go/common/grpc/grpc.go	77.59% <0.00%> (-1.25%)	⬇️
go/storage/client/client.go	75.63% <0.00%> (-0.85%)	⬇️
go/worker/registration/worker.go	66.34% <0.00%> (-0.49%)	⬇️
go/worker/compute/merge/committee/node.go	75.62% <0.00%> (+0.24%)	⬆️
go/consensus/tendermint/tendermint.go	67.35% <0.00%> (+0.41%)	⬆️
go/storage/mkvs/urkel/iterator.go	85.62% <0.00%> (+1.25%)	⬆️
... and 6 more

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[tjanez]

We can also wait since a new version of failure with the fix is said to be released in an hour:
rust-lang-deprecated/failure#342 (comment)

[tjanez]

File a follow up issue to remove the use of the failure crate (https://users.rust-lang.org/t/failure-derive-compilation-error/39062/14) please.

Done: #2755.

[tjanez]

Closing since the upstream merged the fix and published the 0.1.7 release: https://crates.io/crates/failure/0.1.7.