Dec 18 16:40:53.418 INFO checking ethereum-trie-0.4.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:40:53.419 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/ethereum-trie/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:40:53.647 INFO [stdout] 30b9328b12bd65a9ce4444e3f68acb41852fb6ccd706dafe29ae2a25efb4b738
Dec 18 16:40:53.649 INFO running `"docker" "start" "-a" "30b9328b12bd65a9ce4444e3f68acb41852fb6ccd706dafe29ae2a25efb4b738"`
Dec 18 16:40:54.634 INFO [stderr]     Checking ethereum-trie v0.4.0 (/opt/crater/workdir)
Dec 18 16:40:55.120 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 18 16:40:55.120 INFO [stderr]   --> src/lib.rs:13:28
Dec 18 16:40:55.120 INFO [stderr]    |
Dec 18 16:40:55.120 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.120 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.120 INFO [stderr]    |
Dec 18 16:40:55.120 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 16:40:55.124 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 18 16:40:55.125 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 4 | use std::ops::Deref;
Dec 18 16:40:55.125 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `Hash`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 18 16:40:55.125 INFO [stderr]   |                 ^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 18 16:40:55.125 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 18 16:40:55.125 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 18 16:40:55.125 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 18 16:40:55.125 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.125 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.125 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.125 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.125 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.125 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 18 16:40:55.125 INFO [stderr]   |           ^^^^  ^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.125 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `Change`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 18 16:40:55.125 INFO [stderr]   |      ^^^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.125 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.125 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 18 16:40:55.125 INFO [stderr]   |
Dec 18 16:40:55.125 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.125 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.125 INFO [stderr] 
Dec 18 16:40:55.126 INFO [stderr] warning: unused import: `Rlp`
Dec 18 16:40:55.126 INFO [stderr]  --> src/mutable.rs:2:17
Dec 18 16:40:55.126 INFO [stderr]   |
Dec 18 16:40:55.126 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 18 16:40:55.126 INFO [stderr]   |                 ^^^
Dec 18 16:40:55.126 INFO [stderr] 
Dec 18 16:40:55.184 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 18 16:40:55.184 INFO [stderr]   --> src/lib.rs:13:28
Dec 18 16:40:55.184 INFO [stderr]    |
Dec 18 16:40:55.184 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.184 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.184 INFO [stderr]    |
Dec 18 16:40:55.184 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 16:40:55.184 INFO [stderr] 
Dec 18 16:40:55.184 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 18 16:40:55.184 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 18 16:40:55.184 INFO [stderr]   |
Dec 18 16:40:55.184 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 18 16:40:55.184 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 18 16:40:55.184 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 18 16:40:55.185 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 4 | use std::ops::Deref;
Dec 18 16:40:55.185 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused import: `Hash`
Dec 18 16:40:55.185 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 18 16:40:55.185 INFO [stderr]   |                 ^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 18 16:40:55.185 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 18 16:40:55.185 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 18 16:40:55.185 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 18 16:40:55.185 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused import: `Keccak256`
Dec 18 16:40:55.185 INFO [stderr]    --> src/merkle/node.rs:162:24
Dec 18 16:40:55.185 INFO [stderr]     |
Dec 18 16:40:55.185 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 18 16:40:55.185 INFO [stderr]     |                        ^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 18 16:40:55.185 INFO [stderr]    --> src/merkle/node.rs:163:32
Dec 18 16:40:55.185 INFO [stderr]     |
Dec 18 16:40:55.185 INFO [stderr] 163 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.185 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 18 16:40:55.185 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 18 16:40:55.185 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 18 16:40:55.185 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.185 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.185 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.185 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 18 16:40:55.185 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.185 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.185 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.185 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 18 16:40:55.185 INFO [stderr]   |
Dec 18 16:40:55.185 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.185 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.185 INFO [stderr] 
Dec 18 16:40:55.192 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 18 16:40:55.192 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 18 16:40:55.192 INFO [stderr]   |
Dec 18 16:40:55.192 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.192 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 18 16:40:55.192 INFO [stderr] 
Dec 18 16:40:55.192 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 18 16:40:55.192 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 18 16:40:55.192 INFO [stderr]   |
Dec 18 16:40:55.192 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 18 16:40:55.192 INFO [stderr]   |           ^^^^  ^^^
Dec 18 16:40:55.192 INFO [stderr] 
Dec 18 16:40:55.192 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 18 16:40:55.192 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 18 16:40:55.193 INFO [stderr]   |
Dec 18 16:40:55.193 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 18 16:40:55.193 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `Change`
Dec 18 16:40:55.193 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 18 16:40:55.193 INFO [stderr]   |
Dec 18 16:40:55.193 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 18 16:40:55.193 INFO [stderr]   |      ^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `self`
Dec 18 16:40:55.193 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 18 16:40:55.193 INFO [stderr]   |
Dec 18 16:40:55.193 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 18 16:40:55.193 INFO [stderr]   |           ^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `merkle::MerkleNode`
Dec 18 16:40:55.193 INFO [stderr]    --> src/memory.rs:102:9
Dec 18 16:40:55.193 INFO [stderr]     |
Dec 18 16:40:55.193 INFO [stderr] 102 |     use merkle::MerkleNode;
Dec 18 16:40:55.193 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `rlp::Rlp`
Dec 18 16:40:55.193 INFO [stderr]    --> src/memory.rs:103:9
Dec 18 16:40:55.193 INFO [stderr]     |
Dec 18 16:40:55.193 INFO [stderr] 103 |     use rlp::Rlp;
Dec 18 16:40:55.193 INFO [stderr]     |         ^^^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Dec 18 16:40:55.193 INFO [stderr]    --> src/memory.rs:107:9
Dec 18 16:40:55.193 INFO [stderr]     |
Dec 18 16:40:55.193 INFO [stderr] 107 |     use std::cell::UnsafeCell;
Dec 18 16:40:55.193 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `hexutil::read_hex`
Dec 18 16:40:55.193 INFO [stderr]    --> src/memory.rs:109:9
Dec 18 16:40:55.193 INFO [stderr]     |
Dec 18 16:40:55.193 INFO [stderr] 109 |     use hexutil::read_hex;
Dec 18 16:40:55.193 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.193 INFO [stderr] warning: unused import: `Rlp`
Dec 18 16:40:55.193 INFO [stderr]  --> src/mutable.rs:2:17
Dec 18 16:40:55.193 INFO [stderr]   |
Dec 18 16:40:55.193 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 18 16:40:55.193 INFO [stderr]   |                 ^^^
Dec 18 16:40:55.193 INFO [stderr] 
Dec 18 16:40:55.411 INFO [stderr] warning: unused import: `Hasher`
Dec 18 16:40:55.411 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 18 16:40:55.411 INFO [stderr]   |
Dec 18 16:40:55.411 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 18 16:40:55.411 INFO [stderr]   |                       ^^^^^^
Dec 18 16:40:55.411 INFO [stderr] 
Dec 18 16:40:55.411 INFO [stderr] warning: unused import: `Decodable`
Dec 18 16:40:55.411 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 18 16:40:55.411 INFO [stderr]   |
Dec 18 16:40:55.411 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 18 16:40:55.411 INFO [stderr]   |                                       ^^^^^^^^^
Dec 18 16:40:55.411 INFO [stderr] 
Dec 18 16:40:55.411 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 18 16:40:55.411 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 18 16:40:55.411 INFO [stderr]   |
Dec 18 16:40:55.411 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 18 16:40:55.411 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 18 16:40:55.411 INFO [stderr] 
Dec 18 16:40:55.500 INFO [stderr] warning: unused import: `Hasher`
Dec 18 16:40:55.500 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 18 16:40:55.500 INFO [stderr]   |
Dec 18 16:40:55.500 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 18 16:40:55.500 INFO [stderr]   |                       ^^^^^^
Dec 18 16:40:55.500 INFO [stderr] 
Dec 18 16:40:55.501 INFO [stderr] warning: unused import: `Decodable`
Dec 18 16:40:55.501 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 18 16:40:55.501 INFO [stderr]   |
Dec 18 16:40:55.501 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 18 16:40:55.501 INFO [stderr]   |                                       ^^^^^^^^^
Dec 18 16:40:55.501 INFO [stderr] 
Dec 18 16:40:55.501 INFO [stderr] warning: unused import: `Digest`
Dec 18 16:40:55.501 INFO [stderr]    --> src/merkle/node.rs:162:16
Dec 18 16:40:55.501 INFO [stderr]     |
Dec 18 16:40:55.501 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 18 16:40:55.501 INFO [stderr]     |                ^^^^^^
Dec 18 16:40:55.501 INFO [stderr] 
Dec 18 16:40:55.501 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 18 16:40:55.501 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 18 16:40:55.501 INFO [stderr]   |
Dec 18 16:40:55.501 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 18 16:40:55.501 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 18 16:40:55.501 INFO [stderr] 
Dec 18 16:40:55.530 INFO [stderr] warning: unused variable: `value`
Dec 18 16:40:55.530 INFO [stderr]    --> src/memory.rs:139:19
Dec 18 16:40:55.530 INFO [stderr]     |
Dec 18 16:40:55.530 INFO [stderr] 139 |         for (key, value) in &map {
Dec 18 16:40:55.530 INFO [stderr]     |                   ^^^^^ help: consider using `_value` instead
Dec 18 16:40:55.530 INFO [stderr]     |
Dec 18 16:40:55.530 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 16:40:55.530 INFO [stderr] 
Dec 18 16:40:55.641 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:40:55.641 INFO [stderr]    --> src/memory.rs:121:13
Dec 18 16:40:55.641 INFO [stderr]     |
Dec 18 16:40:55.641 INFO [stderr] 121 |         let mut btrie = MemoryTrieMut::build(&map);
Dec 18 16:40:55.641 INFO [stderr]     |             ----^^^^^
Dec 18 16:40:55.642 INFO [stderr]     |             |
Dec 18 16:40:55.642 INFO [stderr]     |             help: remove this `mut`
Dec 18 16:40:55.642 INFO [stderr]     |
Dec 18 16:40:55.642 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:40:55.642 INFO [stderr] 
Dec 18 16:40:55.693 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 18 16:40:56.033 INFO running `"docker" "inspect" "30b9328b12bd65a9ce4444e3f68acb41852fb6ccd706dafe29ae2a25efb4b738"`
Dec 18 16:40:56.166 INFO running `"docker" "rm" "-f" "30b9328b12bd65a9ce4444e3f68acb41852fb6ccd706dafe29ae2a25efb4b738"`
Dec 18 16:40:56.315 INFO [stdout] 30b9328b12bd65a9ce4444e3f68acb41852fb6ccd706dafe29ae2a25efb4b738