[INFO] crate etclient 0.3.0 is already in cache
[INFO] extracting crate etclient 0.3.0 into work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/etclient/0.3.0
[INFO] extracting crate etclient 0.3.0 into work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/etclient/0.3.0
[INFO] validating manifest of etclient-0.3.0 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of etclient-0.3.0 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing etclient-0.3.0
[INFO] finished frobbing etclient-0.3.0
[INFO] frobbed toml for etclient-0.3.0 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/etclient/0.3.0/Cargo.toml
[INFO] started frobbing etclient-0.3.0
[INFO] finished frobbing etclient-0.3.0
[INFO] frobbed toml for etclient-0.3.0 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/etclient/0.3.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking etclient-0.3.0 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-1/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/etclient/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 57b373976f0838bb20991f873670c40696094a88cdac7716e4db7fc968f5079b
[INFO] running `"docker" "start" "-a" "57b373976f0838bb20991f873670c40696094a88cdac7716e4db7fc968f5079b"`
[INFO] [stderr]     Checking tokio-timer-plus v0.1.3
[INFO] [stderr]     Checking ethereum-rlp v0.2.3
[INFO] [stderr]     Checking ethereum-bigint v0.2.9
[INFO] [stderr]     Checking ethereum-trie v0.3.8
[INFO] [stderr]     Checking ethereum-bloom v0.2.1
[INFO] [stderr]     Checking ethereum-block-core v0.1.0
[INFO] [stderr]     Checking dpt v0.3.1
[INFO] [stderr]     Checking rlpx v0.4.1
[INFO] [stderr]     Checking ethash v0.3.1
[INFO] [stderr]     Checking ethereum-block v0.3.5
[INFO] [stderr]     Checking evm v0.9.4
[INFO] [stderr]     Checking devp2p v0.4.1
[INFO] [stderr]     Checking evm-stateful v0.9.2
[INFO] [stderr]     Checking etclient v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MemoryStateful`
[INFO] [stderr]  --> src/validator/genesis.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 | use evm_stateful::{Stateful, MemoryStateful};
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `TotalHeader`, `Transaction`
[INFO] [stderr]  --> src/validator/genesis.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use block::{Header, Block, TotalHeader, Transaction, TransactionAction};
[INFO] [stderr]   |                     ^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DatabaseGuard`
[INFO] [stderr]  --> src/validator/genesis.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use trie::{DatabaseGuard, DatabaseOwned, MemoryTrie};
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ethash`
[INFO] [stderr]   --> src/validator/genesis.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ethash;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FixedMemoryTrie`
[INFO] [stderr]  --> src/validator/mod.rs:3:28
[INFO] [stderr]   |
[INFO] [stderr] 3 | use trie::{MemoryDatabase, FixedMemoryTrie};
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H64`
[INFO] [stderr]  --> src/validator/mod.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use bigint::{U256, H256, H64, Gas};
[INFO] [stderr]   |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Transaction`, `ommers_hash`, `transactions_root`
[INFO] [stderr]  --> src/validator/mod.rs:5:43
[INFO] [stderr]   |
[INFO] [stderr] 5 | use block::{Header, Receipt, TotalHeader, Transaction, Block, Log, TransactionAction, ommers_hash, transactions_root, receipts_root};
[INFO] [stderr]   |                                           ^^^^^^^^^^^                                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Keccak256`
[INFO] [stderr]  --> src/validator/mod.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sha3::{Digest, Keccak256};
[INFO] [stderr]   |                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rlp`
[INFO] [stderr]  --> src/validator/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rlp;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PublicKey`
[INFO] [stderr]   --> src/main.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 | use secp256k1::{PublicKey, SecretKey};
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H512`
[INFO] [stderr]   --> src/main.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 | use bigint::{H256, U256, H512};
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Keccak256`
[INFO] [stderr]   --> src/main.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 | use sha3::{Digest, Keccak256};
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `receipts_root`
[INFO] [stderr]   --> src/main.rs:45:73
[INFO] [stderr]    |
[INFO] [stderr] 45 | use block::{Header, Block, Transaction, transactions_root, ommers_hash, receipts_root};
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `TotalHeader`, `Transaction`
[INFO] [stderr]  --> src/validator/genesis.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use block::{Header, Block, TotalHeader, Transaction, TransactionAction};
[INFO] [stderr]   |                     ^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DatabaseGuard`
[INFO] [stderr]  --> src/validator/genesis.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use trie::{DatabaseGuard, DatabaseOwned, MemoryTrie};
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ethash`
[INFO] [stderr]   --> src/validator/genesis.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ethash;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ethash`
[INFO] [stderr]   --> src/validator/genesis.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     use ethash;
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FixedMemoryTrie`
[INFO] [stderr]  --> src/validator/mod.rs:3:28
[INFO] [stderr]   |
[INFO] [stderr] 3 | use trie::{MemoryDatabase, FixedMemoryTrie};
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H64`
[INFO] [stderr]  --> src/validator/mod.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use bigint::{U256, H256, H64, Gas};
[INFO] [stderr]   |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Transaction`, `ommers_hash`, `transactions_root`
[INFO] [stderr]  --> src/validator/mod.rs:5:43
[INFO] [stderr]   |
[INFO] [stderr] 5 | use block::{Header, Receipt, TotalHeader, Transaction, Block, Log, TransactionAction, ommers_hash, transactions_root, receipts_root};
[INFO] [stderr]   |                                           ^^^^^^^^^^^                                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Keccak256`
[INFO] [stderr]  --> src/validator/mod.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sha3::{Digest, Keccak256};
[INFO] [stderr]   |                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rlp`
[INFO] [stderr]  --> src/validator/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rlp;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PublicKey`
[INFO] [stderr]   --> src/main.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 | use secp256k1::{PublicKey, SecretKey};
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H512`
[INFO] [stderr]   --> src/main.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 | use bigint::{H256, U256, H512};
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Keccak256`
[INFO] [stderr]   --> src/main.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 | use sha3::{Digest, Keccak256};
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `receipts_root`
[INFO] [stderr]   --> src/main.rs:45:73
[INFO] [stderr]    |
[INFO] [stderr] 45 | use block::{Header, Block, Transaction, transactions_root, ommers_hash, receipts_root};
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:151:59
[INFO] [stderr]     |
[INFO] [stderr] 151 |     let mut timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:166:29
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 timeout = t.boxed();
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:198:63
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:297:71
[INFO] [stderr]     |
[INFO] [stderr] 297 |                         timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:151:59
[INFO] [stderr]     |
[INFO] [stderr] 151 |     let mut timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:166:29
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 timeout = t.boxed();
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:198:63
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Future::boxed': removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stderr]    --> src/main.rs:297:71
[INFO] [stderr]     |
[INFO] [stderr] 297 |                         timeout = Timeout::new(dur, &handle).unwrap().boxed();
[INFO] [stderr]     |                                                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]  --> src/validator/mod.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sha3::{Digest, Keccak256};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]   --> src/main.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | use sha3::{Digest, Keccak256};
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     for i in validated_number..headers.len() {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `when`
[INFO] [stderr]    --> src/main.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |     let mut when = Instant::now() + dur;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_when`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]    --> src/main.rs:211:29
[INFO] [stderr]     |
[INFO] [stderr] 211 |                 node, data, version
[INFO] [stderr]     |                             ^^^^^^^ help: try ignoring the field: `version: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_headers`
[INFO] [stderr]    --> src/main.rs:221:33
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                 ^^^^^^^^^^^ help: try ignoring the field: `max_headers: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reverse`
[INFO] [stderr]    --> src/main.rs:221:52
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                                    ^^^^^^^ help: try ignoring the field: `reverse: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]    --> src/main.rs:221:46
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                              ^^^^ help: try ignoring the field: `skip: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_headers`
[INFO] [stderr]    --> src/main.rs:241:31
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                               ^^^^^^^^^^^ help: try ignoring the field: `max_headers: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reverse`
[INFO] [stderr]    --> src/main.rs:241:50
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                                                  ^^^^^^^ help: try ignoring the field: `reverse: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]    --> src/main.rs:241:44
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                                            ^^^^ help: try ignoring the field: `skip: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `difficulty_bound_divisor`
[INFO] [stderr]   --> src/validator/mod.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let difficulty_bound_divisor = U256::from(0x0800);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_difficulty_bound_divisor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `duration_limit`
[INFO] [stderr]   --> src/validator/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let duration_limit = 0x0d;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_duration_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frontier_limit`
[INFO] [stderr]   --> src/validator/mod.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let frontier_limit = U256::from(1150000);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frontier_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/validator/mod.rs:144:24
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let (mix_hash, result) = self.dag.hashimoto(self.current_block.header.partial_hash(),
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vm`
[INFO] [stderr]    --> src/validator/mod.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let vm: SeqTransactionVM<P::VM> = stateful.execute(
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_vm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vm`
[INFO] [stderr]    --> src/validator/mod.rs:234:17
[INFO] [stderr]     |
[INFO] [stderr] 234 |             let vm: SeqTransactionVM<P::VM> = stateful.execute(
[INFO] [stderr]     |                 ^^ help: consider prefixing with an underscore: `_vm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/patch.rs:26:21
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn block_reward(number: U256, uncles: usize) -> U256 { P::base_reward() + P::base_reward().shr(5) * U256::from(uncles) }
[INFO] [stderr]    |                     ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uncles`
[INFO] [stderr]   --> src/patch.rs:51:35
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn block_reward(number: U256, uncles: usize) -> U256 {
[INFO] [stderr]    |                                   ^^^^^^ help: consider prefixing with an underscore: `_uncles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance`
[INFO] [stderr]   --> src/patch.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn uncle_reward(distance: U256) -> U256 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider prefixing with an underscore: `_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let mut client = ETHStream::new(
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let mut got_bodies_for_current = true;
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |     let mut when = Instant::now() + dur;
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:149:29
[INFO] [stderr]     |
[INFO] [stderr] 149 |     let (mut client_sender, mut client_receiver) = client.split();
[INFO] [stderr]     |                             ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/validator/genesis.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut header = Header {
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/validator/genesis.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut accounts: Vec<(&String, &JSONAccount)> = genesis_accounts.iter().collect();
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]  --> src/validator/mod.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sha3::{Digest, Keccak256};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]   --> src/main.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | use sha3::{Digest, Keccak256};
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     for i in validated_number..headers.len() {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `when`
[INFO] [stderr]    --> src/main.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |     let mut when = Instant::now() + dur;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_when`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]    --> src/main.rs:211:29
[INFO] [stderr]     |
[INFO] [stderr] 211 |                 node, data, version
[INFO] [stderr]     |                             ^^^^^^^ help: try ignoring the field: `version: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_headers`
[INFO] [stderr]    --> src/main.rs:221:33
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                 ^^^^^^^^^^^ help: try ignoring the field: `max_headers: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reverse`
[INFO] [stderr]    --> src/main.rs:221:52
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                                    ^^^^^^^ help: try ignoring the field: `reverse: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]    --> src/main.rs:221:46
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         number, max_headers, skip, reverse
[INFO] [stderr]     |                                              ^^^^ help: try ignoring the field: `skip: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_headers`
[INFO] [stderr]    --> src/main.rs:241:31
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                               ^^^^^^^^^^^ help: try ignoring the field: `max_headers: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reverse`
[INFO] [stderr]    --> src/main.rs:241:50
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                                                  ^^^^^^^ help: try ignoring the field: `reverse: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]    --> src/main.rs:241:44
[INFO] [stderr]     |
[INFO] [stderr] 241 |                         hash, max_headers, skip, reverse
[INFO] [stderr]     |                                            ^^^^ help: try ignoring the field: `skip: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `difficulty_bound_divisor`
[INFO] [stderr]   --> src/validator/mod.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let difficulty_bound_divisor = U256::from(0x0800);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_difficulty_bound_divisor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `duration_limit`
[INFO] [stderr]   --> src/validator/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let duration_limit = 0x0d;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_duration_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frontier_limit`
[INFO] [stderr]   --> src/validator/mod.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let frontier_limit = U256::from(1150000);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frontier_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/validator/mod.rs:144:24
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let (mix_hash, result) = self.dag.hashimoto(self.current_block.header.partial_hash(),
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vm`
[INFO] [stderr]    --> src/validator/mod.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let vm: SeqTransactionVM<P::VM> = stateful.execute(
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_vm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vm`
[INFO] [stderr]    --> src/validator/mod.rs:234:17
[INFO] [stderr]     |
[INFO] [stderr] 234 |             let vm: SeqTransactionVM<P::VM> = stateful.execute(
[INFO] [stderr]     |                 ^^ help: consider prefixing with an underscore: `_vm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/patch.rs:26:21
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn block_reward(number: U256, uncles: usize) -> U256 { P::base_reward() + P::base_reward().shr(5) * U256::from(uncles) }
[INFO] [stderr]    |                     ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uncles`
[INFO] [stderr]   --> src/patch.rs:51:35
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn block_reward(number: U256, uncles: usize) -> U256 {
[INFO] [stderr]    |                                   ^^^^^^ help: consider prefixing with an underscore: `_uncles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance`
[INFO] [stderr]   --> src/patch.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn uncle_reward(distance: U256) -> U256 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider prefixing with an underscore: `_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NETWORK_ID`
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const NETWORK_ID: usize = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     env_logger::init();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let mut client = ETHStream::new(
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let mut got_bodies_for_current = true;
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |     let mut when = Instant::now() + dur;
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:149:29
[INFO] [stderr]     |
[INFO] [stderr] 149 |     let (mut client_sender, mut client_receiver) = client.split();
[INFO] [stderr]     |                             ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/validator/genesis.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut header = Header {
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/validator/genesis.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut accounts: Vec<(&String, &JSONAccount)> = genesis_accounts.iter().collect();
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NETWORK_ID`
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const NETWORK_ID: usize = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     env_logger::init();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.68s
[INFO] running `"docker" "inspect" "57b373976f0838bb20991f873670c40696094a88cdac7716e4db7fc968f5079b"`
[INFO] running `"docker" "rm" "-f" "57b373976f0838bb20991f873670c40696094a88cdac7716e4db7fc968f5079b"`
[INFO] [stdout] 57b373976f0838bb20991f873670c40696094a88cdac7716e4db7fc968f5079b