Nov 30 23:16:12.511 INFO checking ethereum-trie-test-0.3.9 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 23:16:12.511 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 23:16:12.980 INFO [stdout] 6e3912b78e8c44c1dc9e021595ced31dfd0a6f906c7fce87d3402f49a4692b1f
Nov 30 23:16:12.986 INFO running `"docker" "start" "-a" "6e3912b78e8c44c1dc9e021595ced31dfd0a6f906c7fce87d3402f49a4692b1f"`
Nov 30 23:16:14.648 INFO [stderr] usermod: no changes
Nov 30 23:16:14.812 INFO [stderr]     Checking ethereum-hexutil v0.2.3
Nov 30 23:16:14.812 INFO [stderr]     Checking elastic-array-plus v0.9.1
Nov 30 23:16:14.852 INFO [stderr]     Checking sha3 v0.6.0
Nov 30 23:16:16.577 INFO [stderr]     Checking ethereum-rlp v0.2.3
Nov 30 23:16:17.705 INFO [stderr]     Checking ethereum-bigint v0.2.9
Nov 30 23:16:20.510 INFO [stderr]     Checking ethereum-trie-test v0.3.9 (/source)
Nov 30 23:16:22.332 INFO [stderr] warning: unused imports: `DerefMut`, `Deref`
Nov 30 23:16:22.332 INFO [stderr]   --> src/lib.rs:12:16
Nov 30 23:16:22.332 INFO [stderr]    |
Nov 30 23:16:22.332 INFO [stderr] 12 | use std::ops::{Deref, DerefMut};
Nov 30 23:16:22.332 INFO [stderr]    |                ^^^^^  ^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr]    |
Nov 30 23:16:22.332 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/nibble.rs:1:22
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 1 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Nov 30 23:16:22.332 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused import: `std::ops::Deref`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/nibble.rs:2:5
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 2 | use std::ops::Deref;
Nov 30 23:16:22.332 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused import: `Hash`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/nibble.rs:4:17
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Nov 30 23:16:22.332 INFO [stderr]   |                 ^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/nibble.rs:5:16
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 5 | use std::fmt::{self, Debug, Formatter};
Nov 30 23:16:22.332 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/node.rs:1:27
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Nov 30 23:16:22.332 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Nov 30 23:16:22.332 INFO [stderr]  --> src/merkle/mod.rs:4:20
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 4 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Nov 30 23:16:22.332 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused import: `::Trie`
Nov 30 23:16:22.332 INFO [stderr]  --> src/database/memory.rs:1:5
Nov 30 23:16:22.332 INFO [stderr]   |
Nov 30 23:16:22.332 INFO [stderr] 1 | use ::Trie;
Nov 30 23:16:22.332 INFO [stderr]   |     ^^^^^^
Nov 30 23:16:22.332 INFO [stderr] 
Nov 30 23:16:22.332 INFO [stderr] warning: unused import: `DatabaseOwned`
Nov 30 23:16:22.332 INFO [stderr]  --> src/database/memory.rs:2:23
Nov 30 23:16:22.333 INFO [stderr]   |
Nov 30 23:16:22.333 INFO [stderr] 2 | use super::{Database, DatabaseOwned, DatabaseGuard};
Nov 30 23:16:22.333 INFO [stderr]   |                       ^^^^^^^^^^^^^
Nov 30 23:16:22.333 INFO [stderr] 
Nov 30 23:16:22.752 INFO [stderr] warning: unused import: `Hasher`
Nov 30 23:16:22.752 INFO [stderr]  --> src/merkle/nibble.rs:4:23
Nov 30 23:16:22.752 INFO [stderr]   |
Nov 30 23:16:22.752 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Nov 30 23:16:22.752 INFO [stderr]   |                       ^^^^^^
Nov 30 23:16:22.752 INFO [stderr] 
Nov 30 23:16:22.752 INFO [stderr] warning: unused import: `Decodable`
Nov 30 23:16:22.752 INFO [stderr]  --> src/merkle/node.rs:3:39
Nov 30 23:16:22.752 INFO [stderr]   |
Nov 30 23:16:22.752 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Nov 30 23:16:22.752 INFO [stderr]   |                                       ^^^^^^^^^
Nov 30 23:16:22.752 INFO [stderr] 
Nov 30 23:16:22.804 INFO [stderr] warning: unused variable: `value`
Nov 30 23:16:22.804 INFO [stderr]    --> src/lib.rs:283:74
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr] 283 |             let submap = Self::build_submap(1, map.iter().filter(|&(key, value)| {
Nov 30 23:16:22.804 INFO [stderr]     |                                                                          ^^^^^ help: consider using `_value` instead
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 30 23:16:22.804 INFO [stderr] 
Nov 30 23:16:22.804 INFO [stderr] warning: unused variable: `value`
Nov 30 23:16:22.804 INFO [stderr]    --> src/lib.rs:296:29
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr] 296 |             .filter(|&(key, value)| key.len() == 0).next()
Nov 30 23:16:22.804 INFO [stderr]     |                             ^^^^^ help: consider using `_value` instead
Nov 30 23:16:22.804 INFO [stderr] 
Nov 30 23:16:22.804 INFO [stderr] warning: unused variable: `key`
Nov 30 23:16:22.804 INFO [stderr]    --> src/lib.rs:297:20
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr] 297 |             .map(|(key, value)| value.clone());
Nov 30 23:16:22.804 INFO [stderr]     |                    ^^^ help: consider using `_key` instead
Nov 30 23:16:22.804 INFO [stderr] 
Nov 30 23:16:22.804 INFO [stderr] warning: unused variable: `sub_nodes`
Nov 30 23:16:22.804 INFO [stderr]    --> src/lib.rs:632:44
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Nov 30 23:16:22.804 INFO [stderr]     |                                            ^^^^^^^^^ help: consider using `_sub_nodes` instead
Nov 30 23:16:22.804 INFO [stderr] 
Nov 30 23:16:22.804 INFO [stderr] warning: unused variable: `sub_additional`
Nov 30 23:16:22.804 INFO [stderr]    --> src/lib.rs:632:55
Nov 30 23:16:22.804 INFO [stderr]     |
Nov 30 23:16:22.804 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Nov 30 23:16:22.804 INFO [stderr]     |                                                       ^^^^^^^^^^^^^^ help: consider using `_sub_additional` instead
Nov 30 23:16:22.804 INFO [stderr] 
Nov 30 23:16:22.988 INFO [stderr] warning: method is never used: `free`
Nov 30 23:16:22.988 INFO [stderr]   --> src/database/mod.rs:96:5
Nov 30 23:16:22.988 INFO [stderr]    |
Nov 30 23:16:22.988 INFO [stderr] 96 |     pub fn free<'b>(&'b mut self, hash: H256) {
Nov 30 23:16:22.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 23:16:22.988 INFO [stderr]    |
Nov 30 23:16:22.988 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 23:16:22.988 INFO [stderr] 
Nov 30 23:16:22.988 INFO [stderr] warning: field is never used: `freed`
Nov 30 23:16:22.988 INFO [stderr]    --> src/database/mod.rs:123:5
Nov 30 23:16:22.988 INFO [stderr]     |
Nov 30 23:16:22.988 INFO [stderr] 123 |     freed: Vec<H256>,
Nov 30 23:16:22.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Nov 30 23:16:22.988 INFO [stderr] 
Nov 30 23:16:23.184 INFO [stderr] warning: unused imports: `DerefMut`, `Deref`
Nov 30 23:16:23.184 INFO [stderr]   --> src/lib.rs:12:16
Nov 30 23:16:23.184 INFO [stderr]    |
Nov 30 23:16:23.184 INFO [stderr] 12 | use std::ops::{Deref, DerefMut};
Nov 30 23:16:23.184 INFO [stderr]    |                ^^^^^  ^^^^^^^^
Nov 30 23:16:23.184 INFO [stderr]    |
Nov 30 23:16:23.184 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 30 23:16:23.184 INFO [stderr] 
Nov 30 23:16:23.184 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Nov 30 23:16:23.184 INFO [stderr]  --> src/merkle/nibble.rs:1:22
Nov 30 23:16:23.184 INFO [stderr]   |
Nov 30 23:16:23.184 INFO [stderr] 1 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Nov 30 23:16:23.184 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Nov 30 23:16:23.184 INFO [stderr] 
Nov 30 23:16:23.184 INFO [stderr] warning: unused import: `std::ops::Deref`
Nov 30 23:16:23.184 INFO [stderr]  --> src/merkle/nibble.rs:2:5
Nov 30 23:16:23.185 INFO [stderr]   |
Nov 30 23:16:23.185 INFO [stderr] 2 | use std::ops::Deref;
Nov 30 23:16:23.185 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 23:16:23.185 INFO [stderr] 
Nov 30 23:16:23.185 INFO [stderr] warning: unused import: `Hash`
Nov 30 23:16:23.185 INFO [stderr]  --> src/merkle/nibble.rs:4:17
Nov 30 23:16:23.185 INFO [stderr]   |
Nov 30 23:16:23.185 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Nov 30 23:16:23.185 INFO [stderr]   |                 ^^^^
Nov 30 23:16:23.185 INFO [stderr] 
Nov 30 23:16:23.185 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Nov 30 23:16:23.185 INFO [stderr]  --> src/merkle/nibble.rs:5:16
Nov 30 23:16:23.185 INFO [stderr]   |
Nov 30 23:16:23.185 INFO [stderr] 5 | use std::fmt::{self, Debug, Formatter};
Nov 30 23:16:23.185 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Nov 30 23:16:23.185 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Nov 30 23:16:23.190 INFO [stderr]  --> src/merkle/node.rs:1:27
Nov 30 23:16:23.190 INFO [stderr]   |
Nov 30 23:16:23.190 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Nov 30 23:16:23.190 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused import: `Keccak256`
Nov 30 23:16:23.190 INFO [stderr]    --> src/merkle/node.rs:157:24
Nov 30 23:16:23.190 INFO [stderr]     |
Nov 30 23:16:23.190 INFO [stderr] 157 |     use sha3::{Digest, Keccak256};
Nov 30 23:16:23.190 INFO [stderr]     |                        ^^^^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Nov 30 23:16:23.190 INFO [stderr]    --> src/merkle/node.rs:158:32
Nov 30 23:16:23.190 INFO [stderr]     |
Nov 30 23:16:23.190 INFO [stderr] 158 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Nov 30 23:16:23.190 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Nov 30 23:16:23.190 INFO [stderr]  --> src/merkle/mod.rs:4:20
Nov 30 23:16:23.190 INFO [stderr]   |
Nov 30 23:16:23.190 INFO [stderr] 4 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Nov 30 23:16:23.190 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused import: `::Trie`
Nov 30 23:16:23.190 INFO [stderr]  --> src/database/memory.rs:1:5
Nov 30 23:16:23.190 INFO [stderr]   |
Nov 30 23:16:23.190 INFO [stderr] 1 | use ::Trie;
Nov 30 23:16:23.190 INFO [stderr]   |     ^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused import: `DatabaseOwned`
Nov 30 23:16:23.190 INFO [stderr]  --> src/database/memory.rs:2:23
Nov 30 23:16:23.190 INFO [stderr]   |
Nov 30 23:16:23.190 INFO [stderr] 2 | use super::{Database, DatabaseOwned, DatabaseGuard};
Nov 30 23:16:23.190 INFO [stderr]   |                       ^^^^^^^^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.190 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Nov 30 23:16:23.190 INFO [stderr]    --> src/lib.rs:726:9
Nov 30 23:16:23.190 INFO [stderr]     |
Nov 30 23:16:23.190 INFO [stderr] 726 |     use std::cell::UnsafeCell;
Nov 30 23:16:23.190 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Nov 30 23:16:23.190 INFO [stderr] 
Nov 30 23:16:23.568 INFO [stderr] warning: unused import: `Hasher`
Nov 30 23:16:23.568 INFO [stderr]  --> src/merkle/nibble.rs:4:23
Nov 30 23:16:23.568 INFO [stderr]   |
Nov 30 23:16:23.568 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Nov 30 23:16:23.568 INFO [stderr]   |                       ^^^^^^
Nov 30 23:16:23.568 INFO [stderr] 
Nov 30 23:16:23.568 INFO [stderr] warning: unused import: `Decodable`
Nov 30 23:16:23.568 INFO [stderr]  --> src/merkle/node.rs:3:39
Nov 30 23:16:23.568 INFO [stderr]   |
Nov 30 23:16:23.568 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Nov 30 23:16:23.568 INFO [stderr]   |                                       ^^^^^^^^^
Nov 30 23:16:23.568 INFO [stderr] 
Nov 30 23:16:23.569 INFO [stderr] warning: unused import: `Digest`
Nov 30 23:16:23.569 INFO [stderr]    --> src/merkle/node.rs:157:16
Nov 30 23:16:23.569 INFO [stderr]     |
Nov 30 23:16:23.569 INFO [stderr] 157 |     use sha3::{Digest, Keccak256};
Nov 30 23:16:23.569 INFO [stderr]     |                ^^^^^^
Nov 30 23:16:23.569 INFO [stderr] 
Nov 30 23:16:23.584 INFO [stderr] warning: unused import: `DatabaseGuard`
Nov 30 23:16:23.584 INFO [stderr]    --> src/lib.rs:723:17
Nov 30 23:16:23.584 INFO [stderr]     |
Nov 30 23:16:23.584 INFO [stderr] 723 |     use super::{DatabaseGuard, Trie};
Nov 30 23:16:23.584 INFO [stderr]     |                 ^^^^^^^^^^^^^
Nov 30 23:16:23.584 INFO [stderr] 
Nov 30 23:16:23.605 INFO [stderr] warning: unused variable: `value`
Nov 30 23:16:23.605 INFO [stderr]    --> src/lib.rs:283:74
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr] 283 |             let submap = Self::build_submap(1, map.iter().filter(|&(key, value)| {
Nov 30 23:16:23.605 INFO [stderr]     |                                                                          ^^^^^ help: consider using `_value` instead
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 30 23:16:23.605 INFO [stderr] 
Nov 30 23:16:23.605 INFO [stderr] warning: unused variable: `value`
Nov 30 23:16:23.605 INFO [stderr]    --> src/lib.rs:296:29
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr] 296 |             .filter(|&(key, value)| key.len() == 0).next()
Nov 30 23:16:23.605 INFO [stderr]     |                             ^^^^^ help: consider using `_value` instead
Nov 30 23:16:23.605 INFO [stderr] 
Nov 30 23:16:23.605 INFO [stderr] warning: unused variable: `key`
Nov 30 23:16:23.605 INFO [stderr]    --> src/lib.rs:297:20
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr] 297 |             .map(|(key, value)| value.clone());
Nov 30 23:16:23.605 INFO [stderr]     |                    ^^^ help: consider using `_key` instead
Nov 30 23:16:23.605 INFO [stderr] 
Nov 30 23:16:23.605 INFO [stderr] warning: unused variable: `sub_nodes`
Nov 30 23:16:23.605 INFO [stderr]    --> src/lib.rs:632:44
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Nov 30 23:16:23.605 INFO [stderr]     |                                            ^^^^^^^^^ help: consider using `_sub_nodes` instead
Nov 30 23:16:23.605 INFO [stderr] 
Nov 30 23:16:23.605 INFO [stderr] warning: unused variable: `sub_additional`
Nov 30 23:16:23.605 INFO [stderr]    --> src/lib.rs:632:55
Nov 30 23:16:23.605 INFO [stderr]     |
Nov 30 23:16:23.605 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Nov 30 23:16:23.605 INFO [stderr]     |                                                       ^^^^^^^^^^^^^^ help: consider using `_sub_additional` instead
Nov 30 23:16:23.605 INFO [stderr] 
Nov 30 23:16:23.692 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.692 INFO [stderr]    --> src/lib.rs:740:13
Nov 30 23:16:23.692 INFO [stderr]     |
Nov 30 23:16:23.692 INFO [stderr] 740 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.692 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.692 INFO [stderr]     |             |
Nov 30 23:16:23.692 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.692 INFO [stderr]     |
Nov 30 23:16:23.692 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 23:16:23.692 INFO [stderr] 
Nov 30 23:16:23.695 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.695 INFO [stderr]    --> src/lib.rs:756:13
Nov 30 23:16:23.695 INFO [stderr]     |
Nov 30 23:16:23.695 INFO [stderr] 756 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.695 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.695 INFO [stderr]     |             |
Nov 30 23:16:23.695 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.695 INFO [stderr] 
Nov 30 23:16:23.700 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.700 INFO [stderr]    --> src/lib.rs:776:13
Nov 30 23:16:23.700 INFO [stderr]     |
Nov 30 23:16:23.700 INFO [stderr] 776 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.700 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.700 INFO [stderr]     |             |
Nov 30 23:16:23.700 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.700 INFO [stderr] 
Nov 30 23:16:23.704 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.704 INFO [stderr]    --> src/lib.rs:801:13
Nov 30 23:16:23.704 INFO [stderr]     |
Nov 30 23:16:23.704 INFO [stderr] 801 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.704 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.704 INFO [stderr]     |             |
Nov 30 23:16:23.704 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.704 INFO [stderr] 
Nov 30 23:16:23.704 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.704 INFO [stderr]    --> src/lib.rs:812:13
Nov 30 23:16:23.704 INFO [stderr]     |
Nov 30 23:16:23.704 INFO [stderr] 812 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.704 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.704 INFO [stderr]     |             |
Nov 30 23:16:23.704 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.704 INFO [stderr] 
Nov 30 23:16:23.708 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.708 INFO [stderr]    --> src/lib.rs:825:13
Nov 30 23:16:23.708 INFO [stderr]     |
Nov 30 23:16:23.708 INFO [stderr] 825 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.708 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.708 INFO [stderr]     |             |
Nov 30 23:16:23.708 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.708 INFO [stderr] 
Nov 30 23:16:23.712 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.712 INFO [stderr]    --> src/lib.rs:841:13
Nov 30 23:16:23.712 INFO [stderr]     |
Nov 30 23:16:23.712 INFO [stderr] 841 |         let mut map = HashMap::new();
Nov 30 23:16:23.712 INFO [stderr]     |             ----^^^
Nov 30 23:16:23.712 INFO [stderr]     |             |
Nov 30 23:16:23.712 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.712 INFO [stderr] 
Nov 30 23:16:23.712 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.712 INFO [stderr]    --> src/lib.rs:843:13
Nov 30 23:16:23.712 INFO [stderr]     |
Nov 30 23:16:23.712 INFO [stderr] 843 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.712 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.712 INFO [stderr]     |             |
Nov 30 23:16:23.712 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.712 INFO [stderr] 
Nov 30 23:16:23.712 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.712 INFO [stderr]    --> src/lib.rs:854:13
Nov 30 23:16:23.712 INFO [stderr]     |
Nov 30 23:16:23.712 INFO [stderr] 854 |         let mut map = HashMap::new();
Nov 30 23:16:23.712 INFO [stderr]     |             ----^^^
Nov 30 23:16:23.712 INFO [stderr]     |             |
Nov 30 23:16:23.712 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.712 INFO [stderr] 
Nov 30 23:16:23.713 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.713 INFO [stderr]    --> src/lib.rs:856:13
Nov 30 23:16:23.713 INFO [stderr]     |
Nov 30 23:16:23.713 INFO [stderr] 856 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.713 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.713 INFO [stderr]     |             |
Nov 30 23:16:23.713 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.713 INFO [stderr] 
Nov 30 23:16:23.714 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.714 INFO [stderr]    --> src/lib.rs:869:13
Nov 30 23:16:23.714 INFO [stderr]     |
Nov 30 23:16:23.714 INFO [stderr] 869 |         let mut map = HashMap::new();
Nov 30 23:16:23.714 INFO [stderr]     |             ----^^^
Nov 30 23:16:23.714 INFO [stderr]     |             |
Nov 30 23:16:23.714 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.714 INFO [stderr] 
Nov 30 23:16:23.714 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.714 INFO [stderr]    --> src/lib.rs:871:13
Nov 30 23:16:23.714 INFO [stderr]     |
Nov 30 23:16:23.714 INFO [stderr] 871 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Nov 30 23:16:23.714 INFO [stderr]     |             ----^^^^^^^^
Nov 30 23:16:23.714 INFO [stderr]     |             |
Nov 30 23:16:23.714 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.714 INFO [stderr] 
Nov 30 23:16:23.714 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:16:23.714 INFO [stderr]    --> src/lib.rs:872:13
Nov 30 23:16:23.714 INFO [stderr]     |
Nov 30 23:16:23.714 INFO [stderr] 872 |         let mut trie: Trie<HashMap<H256, Vec<u8>>> = Trie::build(database, &map);
Nov 30 23:16:23.714 INFO [stderr]     |             ----^^^^
Nov 30 23:16:23.714 INFO [stderr]     |             |
Nov 30 23:16:23.714 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:16:23.714 INFO [stderr] 
Nov 30 23:16:23.792 INFO [stderr] warning: method is never used: `free`
Nov 30 23:16:23.792 INFO [stderr]   --> src/database/mod.rs:96:5
Nov 30 23:16:23.792 INFO [stderr]    |
Nov 30 23:16:23.792 INFO [stderr] 96 |     pub fn free<'b>(&'b mut self, hash: H256) {
Nov 30 23:16:23.792 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 23:16:23.792 INFO [stderr]    |
Nov 30 23:16:23.792 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 23:16:23.792 INFO [stderr] 
Nov 30 23:16:23.792 INFO [stderr] warning: field is never used: `freed`
Nov 30 23:16:23.792 INFO [stderr]    --> src/database/mod.rs:123:5
Nov 30 23:16:23.792 INFO [stderr]     |
Nov 30 23:16:23.792 INFO [stderr] 123 |     freed: Vec<H256>,
Nov 30 23:16:23.792 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Nov 30 23:16:23.792 INFO [stderr] 
Nov 30 23:16:23.827 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.16s
Nov 30 23:16:23.831 INFO [stderr] su: No module specific data is present
Nov 30 23:16:24.656 INFO running `"docker" "inspect" "6e3912b78e8c44c1dc9e021595ced31dfd0a6f906c7fce87d3402f49a4692b1f"`
Nov 30 23:16:24.940 INFO running `"docker" "rm" "-f" "6e3912b78e8c44c1dc9e021595ced31dfd0a6f906c7fce87d3402f49a4692b1f"`
Nov 30 23:16:25.192 INFO [stdout] 6e3912b78e8c44c1dc9e021595ced31dfd0a6f906c7fce87d3402f49a4692b1f