* Stop breaking out of loop if a non-canonical hash is found
* include expected hash in log msg
* More logging
* Scope
* Syntax
* Log in blank RollingFinality
Escalate bad proposer to warning
* Check validator set size: warn if 1 or even number
* More readable code
* Use SimpleList::new
* Extensive logging on unexpected non-canonical hash
* Wording
* wip
* Update ethcore/blockchain/src/blockchain.rs
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Improved logging, address grumbles
* Update ethcore/src/engines/validator_set/simple_list.rs
Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>
* Report benign misbehaviour iff currently a validator
* Report malicious behaviour iff we're a validator
* Escalate to warning and fix wording
* Test reporting behaviour
Don't require node to be part of the validator set to report malicious behaviour
* Include missing parent hash in MissingParent error
* Update ethcore/src/engines/validator_set/simple_list.rs
Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>
* docs
* remove unneeded into()
Move check for parent_step == step for clarity&efficiency
Remove dead code for Seal::Proposal
* typo
* Wording
* naming
* WIP
* cleanup
* cosmetics
* cosmetics and one less lvar
* spelling
* Better loggin when a block is already in chain
* More logging
* On second thought non-validators are allowed to report
* cleanup
* remove dead code
* Keep track of the hash of the last imported block
* Let it lock
* Serialize access to block sealing
* Take a lock while sealing a block
* Cleanup
* whitespace
* WIP move errors, pod_account and state account to own crates
* Sort out dependencies, fix broken code and tests
Remove botched ethcore-error crate
* remove template line
* fix review feedback
* Remove test-only AccountDBMut::new
* Extract AccountDB to account-db
* test failure
* test failure 2
* third time's the charm
* First draft: pass the parent block header to on_close_block
* typos and cleanup
* whitespace
* Store parent in ClosedBlock as well so it can be reopen()'d
* Don't pass parent when reopening a block
* Remove the unused ancestry param
* Better logging when backfilling ancient blocks fail
Print total blocks imported, closes#10792
* `finalize()` doesn't need Engine
Pull out call to migrated_blocks() from replace_client_db()
* More logs
* Clarify that the percentage may be misleading
* Remove replace_client_db() and replace with a straight call to restore_db()
* Include the parent_hash in UnlinkedAncientBlockChain errors
* Add a new RestorationStatus varian: Finalizing (as it can take a loooong while)
Call abort_restore() when restoration fails
* Add missing cases for new variant
* typos
* Typo and derive Debug
* Do not attempt to salvage existing blocks unless they form a complete chain back to genesis
* Fix test
* Revert "Fix test"
This reverts commit f027d4b4cb7b6c23fceec528c1711886ba9cfe4e.
* Fix test again
* Update comment
* Be careful about locks
* fix test failure
* Do not defer returning an error when the chain is broken
* Review feedback
* no hex formatting for Option
* expand parameters for pending_transactions()
* move ready_transactions content into filtered method
* apply filter based on tx_hash, sender or receiver
* call filtered transactions from RPC interface
* attempt at testing...
* replace parameters with _ on light client
* addes some comments
* removed uncompleted tests in miner.rs
* attempt at testing, needs more work...
* Formatting for ready_transactions_filtered
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Use map_or instead of if-let
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* additional map_or replacement
* change receiver type to Option<Option<Address>>
* remove faulty MiningService tests, test RPC later
* remove tx hash from pending transaction filtering
* as_unsigned() method for SignedTransaction
* implement Deserialize for FilterOptions
* implement Validate for MapAccess type
* additional formatting
* directly name cover in pattern matching
* test valid vull deserialization
* test valid sender operators
* test valid receiver operators
* test valid gas operators
* test valid gas price operators
* test valid value operators
* test valid nonce operators
* additional tsets for defaults, unknown filter types, unknown operators and some renames
* move filter_options to ethcore to avoid package cycling
* adjusted function/method parameters for FilterOptions
* implement filter for sender and receiver
* implement filter for gas
* implement filter for gas price, tx value and nonce
* improve filtering implementation; use common function, use combinators
* improved documentation for FilterOptions
* small documentation adjustments
* remove warnings
* replace FilterOperator::ContractCreation with FilterOperator::Eq(None)
* implement validate_receiver
* make small changes like renames, preamble
* cleanup code according to suggestions, add docs
* small improvements like formatting and newline
* Stop breaking out of loop if a non-canonical hash is found
* include expected hash in log msg
* More logging
* Scope
* Syntax
* Log in blank RollingFinality
Escalate bad proposer to warning
* Check validator set size: warn if 1 or even number
* More readable code
* Use SimpleList::new
* Extensive logging on unexpected non-canonical hash
* Wording
* wip
* Update ethcore/blockchain/src/blockchain.rs
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Improved logging, address grumbles
* Update ethcore/src/engines/validator_set/simple_list.rs
Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>
* Report benign misbehaviour iff currently a validator
* Report malicious behaviour iff we're a validator
* Escalate to warning and fix wording
* Test reporting behaviour
Don't require node to be part of the validator set to report malicious behaviour
* Include missing parent hash in MissingParent error
* Update ethcore/src/engines/validator_set/simple_list.rs
Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>
* cleanup
* On second thought non-validators are allowed to report
* cleanup
* remove dead code
* docs: Update Readme with TOC, Contributor Guide and License sections
* docs: Simplify package descriptions in Readme
* docs: Fix typos
* docs: Update Cargo package configs adding missing descriptions
* fix: Remove machine since was accidental from diff branch. Fix contribting indentation.
* fix: Fix formatting
* remove details snippet since not code and formats badly
* review-fix: Remove duplicate description
* fix dot point formatting
* fix: Add missing description to vm package
* fix: Remove duplicate Code of Conduct and Contributor guidelines
* docs: Update Contributing for consistency with other repos
* docs: Update Readme to link to existing Code of Conduct and Contributor guidelines in .github folder
* refactor: Add missing space
* fix: Fix links to be markdown format
* review-fix: Update CONTRIBUTING.md to link to Parity Ethereum Style Guide
* docs: Fix type in .github/CONTRIBUTING.md
Co-Authored-By: David <dvdplm@gmail.com>
* docs: Fix typo in .github/CONTRIBUTING.md
Co-Authored-By: David <dvdplm@gmail.com>
* docs: Rephrase parity-clib/Cargo.toml
Co-Authored-By: David <dvdplm@gmail.com>
* review-fix: Fix whole paragraph
* review-fix: Add comment to prevent direct pushes to master branch
* review-fix: Change some rules to recommendations
* Update .github/CONTRIBUTING.md
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* review-fix: Replace feature reduction with breaking changes dot point
* review-fix: Rephrase what to do when reviewing PR
* review-fix: Update parity-rpc package description and module rustdocs
* docs: Add missing fullstop
* review-fix: Update rustdoc section to show all packages first as default
* review-fix: Rename Parity Util to Parity Core Libraries
* review-fix: Rename readme too for the C bindings name change
* review-fix: Remove some docs since we do not teach the reader Rust
* review-fix: Wrap Parity Ethereum specific packages in a details section
* review-fix: Separate tools that are in this repo vs those that are not
* review-fix: Add link to ethabi on crates.io
* review-fix: Remove unnecessary extra line talking about pushing to master
* review-fix: Remove useless summary of parts of the rust book documentation section
* docs: Update .github/CONTRIBUTING.md to specify two reviewers required
Co-Authored-By: David <dvdplm@gmail.com>
* docs: Update README.md with simplification
Co-Authored-By: David <dvdplm@gmail.com>
* docs: Update README.md renaming to Test Runner instead of just Run
Co-Authored-By: David <dvdplm@gmail.com>
* review-fix: Remove hardware wallet from docs
* review-fix: Remove veto PR section of contributor doc
* review-fix: Change to test generator title
* Stop breaking out of loop if a non-canonical hash is found
* include expected hash in log msg
* More logging
* Scope
* Syntax
* Log in blank RollingFinality
Escalate bad proposer to warning
* Check validator set size: warn if 1 or even number
* More readable code
* Use SimpleList::new
* Extensive logging on unexpected non-canonical hash
* Wording
* Update ethcore/blockchain/src/blockchain.rs
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Improved logging, address grumbles
* Update ethcore/src/engines/validator_set/simple_list.rs
Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>
This commit does the following:
- Prevent overflow in `verify_timestamp()` by not adding `now` to found faulty timestamp
- Use explicit `CheckedSystemTime::checked_add` to prevent potential consensus issues because SystemTime is platform
depedent
- remove `#[cfg(not(time_checked_add))]` conditional compilation
* Add a way to signal shutdown to snapshotting threads
* Pass Progress to fat_rlps() so we can abort from there too.
* Checking for abort in a single spot
* Remove nightly-only weak/strong counts
* fix warning
* Fix tests
* Add dummy impl to abort snapshots
* Add another dummy impl for TestSnapshotService
* Remove debugging code
* Return error instead of the odd Ok(())
Switch to AtomicU64
* Use fewer threads for snapshotting
When taking a snapshot the current default number of threads is equal to half the number of **logical** CPUs in the system. On HT enabled CPUs this value seems a bit high, e.g. 6 snapshotting threads on a 6/12 core/hyperthread CPU. Maybe a better default value is half the number of physical cores?
* fix test
* Replace error chain for network error
* Fix usages and add manual From impls
* OnDemand Error and remove remaining dependencies
* Die error_chain, die.
* DIE
* Hasta la vista, baby
* Stop breaking out of loop if a non-canonical hash is found
* include expected hash in log msg
* More logging
* Scope
* Syntax
* Log in blank RollingFinality
Escalate bad proposer to warning
* More readable code
* Extensive logging on unexpected non-canonical hash
* Wording
* Use Drop to shutdown stepper thread
Make period == 0 an error and remove the Option from step_service
* Remove StepService
Remove StepService and spawn the stepping thread in `Clique::new()`. Don't store the thread handle and instead trust the `AtomicBool` to signal shutdown time.
Don't check for `period > 0`: we assume a valid chainspec file.
* Don't shutdown the stepper thread at all, just let it run until exit
Also: fix a few warnings and tests
* Put kvdb_memorydb back
* Warn&exit when engine is dropped
Don't sleep too long!
* Don't delay stepping thread
* Better formatting
* [whisper] Move needed aes_gcm crypto in-crate
In the latest `parity-crypto` release (upcoming 0.4), the aes GCM features were removed (done to remove the dependency on `ring`).
This PR adds the bare minimum crypto needed for Whisper directly to the crate itself and as those were the only features needed from `parity-crypto`, removes the dependency on that crate altogether.
* Upgrade to parity-crypto 0.4
Reverts using NonZeroU32 (introduced [here](b347599cf7)).
* Check for 0 in `args.arg_keys_iteration`
* Use beta.4
* parity-crypto 0.4.0 is released
* Remove annoying compiler warnings
* Fix compiler warning (that will become an error)
Fixes https://github.com/paritytech/parity-ethereum/issues/10648
I'm not sure this fix is Good™ but rustc seems happy enough.
There's a deeper issue which may or may not be related to this: the Engine is not shutdown properly and the `StepService` thread keeps running indefinitely after Ctrl-C (so `update_sealing()` is called repeatedly for 300sec). I don't think this is related to Clique as I've seen this happen on mainnet as well, but I wonder if the effects of it are worse for a PoA network where the node can create new blocks all on its own?
* Use saturating_sub
* WIP
* Fix warning, second attempt
The idea here is to avoid using `Arc::get_mut()` (which does not work: fails every time here) and instead trust `drop()` to do the right thing.
This is a conservative change. I think this can be reformed further, e.g. by `impl Drop for StepService` and halt the thread there, or even skip `join()`ing the thread entirely and trust the `AtomicBool` to signal shutdown. I also have doubts abut the `Option<StepService>`: seems a bit much to have an `Option` there and it makes things cumbersome.
* Don't panic if extra_data is longer than VANITY_LENGTH
Seems like `extra_data().len()` can be longer than 32 (was 39 here) so this fixes that panic.
* Update ethcore/src/engines/clique/mod.rs
* Journal for private txs added
* Tests after adding logging to private tx fixed
* Logs getter and tests added
* Time and amount limit for logs added
* RPC method for log retrieving added
* Correct path name and time validation implemented
* References for parameters added, redundant cloning reworked
* References for parameters added, redundant cloning reworked
* Work with json moved to the separate struct
* Serialization test added
* Fixed build after the merge with head
* Documentation for methods fixed, redundant field removed
* Fixed error usages
* Timestamp trait implemented for std struct
* Commented code removed
* Remove timestamp source, rework serialization test
* u64 replaced with SystemTime
* Path made mandatory for logging
* Source of monotonic time added
* into_system_time method renamed
* Initialize time source by max from current system time and max creation time from already saved logs
* Redundant conversions removed, code a little bit reworked according to review comments
* One more redundant conversion removed, rpc call simplified
* Constantinople HF on POA Core
Plan Constantinople/St.Petersfork HF on POA Core network at block 8582254.
Original PR in POA repository: https://github.com/poanetwork/poa-chain-spec/pull/110
* Remove extra empty line
* Fix nasty typo in NodeTable::update (add ;)
* Add limiting for NodeTable
* Add cache for NodeFilter
* Use expect instead of unwrap
* Move node in ordered_ids if it exists there in note_failure and note_success + fix expect msg
* Add comment
* Improve code style
* DRY in note_failure and note_success
* Fix nodes ordering
* Simplify match expression
* Add tests for get_index_to_insert
* Remove get_mut method from NodeTable, Add get method to NodeTable
* Fix table_last_contact_order for macos failing because of lost nanosecond precision
* Update to vanilla tx pool error
* Prevent a non ready tx replacing a ready tx
* Make tests compile
* Test ready tx not replaced by future tx
* Transaction indirection
* Use StateReadiness to calculate Ready in `should_replace`
* Test existing txs from same sender are used to compute Readiness
* private-tx: Wire up ShouldReplace
* Revert "Use StateReadiness to calculate Ready in `should_replace`"
This reverts commit af9e69c8
* Make replace generic so it works with private-tx
* Rename Replace and add missing docs
* ShouldReplace no longer mutable
* tx-pool: update to transaction-pool 2.0 from crates.io
* tx-pool: generic error type alias
* Exit early for first unmatching nonce
* Fix private-tx test, use existing write lock
* Use read lock for pool scoring
* Tx permission contract improvement
* Take in account zero gas price certification when doing transact_contract
* DRY in ServiceTransactionChecker
* Fix typos and regroup mod
* Introduce CertifiedAddressesCache
* Introduce refresh_cache for CertifiedAddressesCache
* Add CertifiedAddressesCache read and write on checking
* Refresh CertifiedAddressesCache on new imported block
* Separate ChainInfo trait and fix errors after merge
* Do not fire an error when service txes contract does not exist
* WIP: Shared certified addresses cache between miner and client + use HashMap instead of BTreeMap
* Refactor refresh_cache for ServiceTransactionChecker
* Refresh cache fixes
* Add cache read in check_address + log when cache is used + improve code
* Remove ChainInfo from ServiceTransaction dependencies
* DRY ServiceTransactionChecker
* Fix Client and Miner in tests
* Fix node_filter test
* Fix Client::new in add_peer_with_private_config
* WIP: Separated ChainNotify from ethcore trait and implemented ChainNotify for ServiceTransactionChecker
* Fix watcher test
* Revert "Merge branch 'master' into master"
This reverts commit 4e7371dc109d022efe3087defc33d827998ce648, reversing
changes made to bffd73e5fd58a516bbf404281b51cf26422e181e.
* Revert "Fix watcher test"
This reverts commit bffd73e5fd58a516bbf404281b51cf26422e181e.
* Revert "WIP: Separated ChainNotify from ethcore trait and implemented ChainNotify for ServiceTransactionChecker"
This reverts commit 6e73d1e61fa15dc10ffd4fab63df29eabe9c3b3a.
* Revert "Fix Client::new in add_peer_with_private_config"
This reverts commit ec610a30bee95588d58b79edcc9e43c2ff90f1ad.
* Revert "Fix node_filter test"
This reverts commit 06a4b2de86317c902f579e912b40de0b0fbf6d78.
* Revert "Fix Client and Miner in tests"
This reverts commit 51bbad330ea6e7bdfc1516208cc8705d5d11516d.
* Implement ServiceTransactionChecker in miner and delegate it to client + revert unnecessary changes
* Merge master
* Code improvements
* Merge branch 'master' of https://github.com/paritytech/parity-ethereum
# Conflicts:
# Cargo.lock
# ethcore/private-tx/src/lib.rs
# ethcore/src/miner/miner.rs
# ethcore/src/miner/pool_client.rs
* ethcore: add clique engine (#9981)
* fix broken sync
* correct seal fields
* ethcore: fix comment
* parity: remove duplicate params
* clique: fix whitespaces
* ethcore: fix goerli chain spec
* refactor signer_snapshot into pending/finalized state
* move close_block_extra_data after seal is applied
* refactor most of the logic into the signer_snapshot
* clique: refactor locking logic out of the consensus engine interface
* Fix jsonspec and add an unittest
* Replace space with tabs
* Unbroke sync
* Fix broken sync
* 1/2 state tracking without votes
* 2/2 implement vote tracking
* ci: use travis for goerli
* ci: setup a clique network
* ci: sync a görli node
* add clique deploy script
* ci: fix paths in clique deploy script
* ci: use docker compose
* ci: fix travis job names
* ci: fix build deps
* ci: massively reduce tests
* Revert "ci: massively reduce tests"
This reverts commit 6369f0b069ed2607a7e9f2e1d85489bacdc43384.
* ci: run cargo test directly
* ci: separate build and test stages
* ci: cache rust installation
* ci: simplify ci stages
* ci: make clique deploy script executable
* ci: shutdown goerli sync after 20min
* ci: remove slow sync stage
* ci: use timeout to finish jobs
* ci: fix build path
* ci: use absolute paths to end this confusion
* ci: add geth and parity to path
* ci: be more verbose
* ci: allow for more relaxed caching timeout
* ci: update repositories for custom ppa
* ci: fix typo in file name
* ci: fix docker compose file
* ci: add ethkey to docker
* ci: make sure deploy script is up to date with upstream
* ci: stop docker container after certain time
* ci: force superuser to update permissions on docker files
* ci: reduce run time of script to ~30 min
* ci: remove duplicate caching in travis
* remove trace statements
* clique: add more validation involving the recent signer list
* ethcore: enable constantinople for rinkeby
* ethcore: fix whitespaces in rinkeby spec
* ethcore: reformat goerli.json
* Revert "ci: remove duplicate caching in travis"
This reverts commit a562838d3d194d37f9871dcbe00b783637978f89.
* tmp commit
* another tmp commit
* it builds!
* add sealing capabilities
* add seal_header hook to allow separation of block seal/importing code paths
* clique: remove populate_from_parent.
* add panic
* make turn delay random
* initialize OpenBlock properly in 'enact'
* misc: remove duplicate lines
* misc: fix license headers
* misc: convert spaces to tabs
* misc: fix tabs
* Update Cargo.toml
* Update Cargo.toml
* Update Cargo.toml
* clique: ensure validator restores state before trying to seal
* clique: make 'state' return an Error. Make some error messages more clear
* Fix compile error after rebase & toolchain upgrade
* fix a bunch of import warnings
* Refactor code
* Fix permissions
* Refactoring syncing
* Implement full validator checks
* Refactor util functions to seperate file
* mining 1
* ethcore: add chainspec for kotti
* ethcore: rename pre-goerli configs
* ethcore: load kotti chain spec
* cli: add kotti to params
* Implement working local sealing
* making sealing & syncing work together
* Relax timestamp checking
* ethcore: prepare for the real goerli to launch
* Implement NOTURN wiggle properly & cleanupnup warnings
* Implement vote casting
* Update docs & skip signing if no signer
* Optimize step-service interval
* Record state on local sealed block
* Fix script filemode
* Cleaning up codebase
* restore enact trace logging
* Delete clique.sh and move sync.sh
* remove travis.yml
* Remove dead code
* Cleanup compile warning
* address review comments
* adding more comments and removing unwrap()
* ci: remove sync script
* Address review comments
* fix compile error
* adding better debugging for timing
* Implement an dedicated thread for sealing timing
* fix(add helper for timestamp overflows) (#10330)
* fix(add helper timestamp overflows)
* fix(simplify code)
* fix(make helper private)
* snap: official image / test (#10168)
* official image / test
* fix / test
* bit more necromancy
* fix paths
* add source bin/df /test
* add source bin/df /test2
* something w paths /test
* something w paths /test
* add source-type /test
* show paths /test
* copy plugin /test
* plugin -> nil
* install rhash
* no questions while installing rhash
* publish snap only for release
* fix(docker): fix not receives SIGINT (#10059)
* fix(docker): fix not receives SIGINT
* fix: update with reviews
* update with review
* update
* update
* Don't add discovery initiators to the node table (#10305)
* Don't add discovery initiators to the node table
* Use enums for tracking state of the nodes in discovery
* Dont try to ping ourselves
* Fix minor nits
* Update timeouts when observing an outdated node
* Extracted update_bucket_record from update_node
* Fixed typo
* Fix two final nits from @todr
* change docker image based on debian instead of ubuntu due to the chan… (#10336)
* change docker image based on debian instead of ubuntu due to the changes of the build container
* role back docker build image and docker deploy image to ubuntu:xenial based (#10338)
* Bundle protocol and packet_id together in chain sync (#10315)
Define a new `enum` where devp2p subprotocol packet ids (currently eth and par) are defined. Additionally provide functionality to query id value and protocol of a given id object.
* snap: prefix version and populate candidate channel (#10343)
* snap: populate candidate releases with beta snaps to avoid stale channel
* snap: prefix version with v*
* addressing review comments
* engine: fix copyright header
* scripts: restore permissions on sign command
* ethcore: enforce tabs
* ethcore: enforce tabs
* ethcore: enforce tabs
* addressing comments
* addressing comments
* addressing more comments
* addressing more comments
* addressing more comments
* addressing more comments
* addressing more comments
* json-spec: fix clique epoch to non-zero u64
* ci: enable travis for parity goerli
* ci: don't separate build and test step
* ci: don't run c++ tests on travis
* ci: simplify cargo test to squeeze into travis timeout
* ci: don't run tests on travis at all
* style(fixes)
* fix(add tests)
* fix(recent_signer bug)
* fix(complete all tests)
* fix(nits)
* fix(simplify asserts)
* fix(cliqueState): simplify code
* fix(nits)
* docs(comments what's need to fixed)
* fix(revert unintended changes)
* fix(tests)
* fix(logs): voting logs
* fix(readability + more logs)
* fix(sync)
* docs(add missing licens header)
* fix(log): info! -> trace!
* docs(fix nits) + fix(remove assert)
* perf(use counter instead of vec)
* fix(remove needless block in match)
* fix(faulty comment)
* grumbles(docs for tests)
* fix(nits)
* fix(revert_vote): only remove vote when votes == 0
* fix(vote counter): checked arithmetics
* fix(simplify tests)
* fix(nits)
* fix(clique): err types
* fix(clique utils): make use of errors
* fix(cleanup nits)
* fix(clique sealing): don't read state no signer
* fix(replace Vec<Signers> with BTreeSet<Signers>)
* fix(tests): BTreeSet and more generic helpers
* fix(nits)
* fix(ethcore_block_seal): remove needless `Box`
* fix(faulty log): info -> trace
* fix(checked SystemTime): prevent SystemTime panics
* style(chain cfg): space after `:`
* style(fn enact): fix whitespace
* docs(clique): StepService
* docs(nit): fix faulty comment
* docs(fix typo)
* style(fix bad indentation)
* fix(bad regex match)
* grumble(on_seal_block): make `&mut` to avoid clone
* docs(on_seal_block): fix faulty documentation
* Delete .travis.yml
* docs: remove eth hf references in spec
* Update client.rs
* fix(nits)
* fix(clique step): `RwLock` -> `AtomicBool`
* fix(clique): use `Duration::as_millis`
* Clean up some Clique documentation
* Add trace information to eth_estimateGas (#10519)
* Add trace information to eth_estimateGas
* replace unwrap better version
* change vm::Error formatter to more user-friendly
* remove extra error format
* use map_or instead sequence of map/unwrap_or
* fix(light/on_demand): extract as a trait
* fix(grumble): OnDemand remove needless trait bound
* Update to vanilla tx pool error
* private-tx: remove error-chain, implement Error, derive Display
* private-tx: replace ErrorKind and bail!
* private-tx: add missing From impls and other compiler errors
* private-tx: use original tx-pool error
* Don't be silly cargo
* Add trace information to eth_estimateGas
* replace unwrap better version
* change vm::Error formatter to more user-friendly
* remove extra error format
* use map_or instead sequence of map/unwrap_or
* fix(extract `timestamp_checked_add` as lib)
* fix(whisper types): remove unused `EmptyTopics`
* fix(time-lib): feature-flag to use time-lib or std
This commit adds conditional compilation checks that falls back to `our time-lib` when
`time_checked_add` is not available in the standard library
Note, `time_checked_add` covers both `checked_add` and `checked_sub`
* fix(grumble): use cfg_attr to define rustc feature
