Dec 07 17:24:33.108 INFO testing ethereum-trie-0.4.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 17:24:33.108 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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"`
Dec 07 17:24:33.341 INFO [stdout] bd4abd19e8ea2f0a2b9b5af5b544e8904fc882bb0ef95ecc7a0d0a8b5e5eb002
Dec 07 17:24:33.343 INFO running `"docker" "start" "-a" "bd4abd19e8ea2f0a2b9b5af5b544e8904fc882bb0ef95ecc7a0d0a8b5e5eb002"`
Dec 07 17:24:33.794 INFO [stderr] usermod: no changes
Dec 07 17:24:33.880 INFO [stderr]    Compiling ethereum-hexutil v0.2.3
Dec 07 17:24:33.888 INFO [stderr]    Compiling sha3 v0.6.0
Dec 07 17:24:35.388 INFO [stderr]    Compiling ethereum-rlp v0.2.3
Dec 07 17:24:36.864 INFO [stderr]    Compiling ethereum-bigint v0.2.9
Dec 07 17:24:40.303 INFO [stderr]    Compiling ethereum-trie v0.4.0 (/source)
Dec 07 17:24:41.760 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:41.760 INFO [stderr]   --> src/lib.rs:13:28
Dec 07 17:24:41.760 INFO [stderr]    |
Dec 07 17:24:41.760 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.760 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.760 INFO [stderr]    |
Dec 07 17:24:41.760 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 17:24:41.760 INFO [stderr] 
Dec 07 17:24:41.760 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 07 17:24:41.760 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 07 17:24:41.760 INFO [stderr]   |
Dec 07 17:24:41.760 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:41.760 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 07 17:24:41.760 INFO [stderr] 
Dec 07 17:24:41.760 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 07 17:24:41.760 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 07 17:24:41.760 INFO [stderr]   |
Dec 07 17:24:41.760 INFO [stderr] 4 | use std::ops::Deref;
Dec 07 17:24:41.760 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 07 17:24:41.760 INFO [stderr] 
Dec 07 17:24:41.760 INFO [stderr] warning: unused import: `Hash`
Dec 07 17:24:41.760 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 07 17:24:41.760 INFO [stderr]   |
Dec 07 17:24:41.760 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:41.760 INFO [stderr]   |                 ^^^^
Dec 07 17:24:41.760 INFO [stderr] 
Dec 07 17:24:41.760 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 07 17:24:41.760 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 07 17:24:41.760 INFO [stderr]   |
Dec 07 17:24:41.760 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 07 17:24:41.760 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:41.761 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:41.761 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 07 17:24:41.761 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:41.761 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.761 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.761 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.761 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.761 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.761 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 07 17:24:41.761 INFO [stderr]   |           ^^^^  ^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.761 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `Change`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:41.761 INFO [stderr]   |      ^^^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.761 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.761 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.761 INFO [stderr] warning: unused import: `Rlp`
Dec 07 17:24:41.761 INFO [stderr]  --> src/mutable.rs:2:17
Dec 07 17:24:41.761 INFO [stderr]   |
Dec 07 17:24:41.761 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 07 17:24:41.761 INFO [stderr]   |                 ^^^
Dec 07 17:24:41.761 INFO [stderr] 
Dec 07 17:24:41.991 INFO [stderr] warning: unused import: `Hasher`
Dec 07 17:24:41.991 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 07 17:24:41.991 INFO [stderr]   |
Dec 07 17:24:41.991 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:41.991 INFO [stderr]   |                       ^^^^^^
Dec 07 17:24:41.991 INFO [stderr] 
Dec 07 17:24:41.991 INFO [stderr] warning: unused import: `Decodable`
Dec 07 17:24:41.991 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 07 17:24:41.991 INFO [stderr]   |
Dec 07 17:24:41.992 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:41.992 INFO [stderr]   |                                       ^^^^^^^^^
Dec 07 17:24:41.992 INFO [stderr] 
Dec 07 17:24:41.992 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 07 17:24:41.992 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 07 17:24:41.992 INFO [stderr]   |
Dec 07 17:24:41.992 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:41.992 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 07 17:24:41.992 INFO [stderr] 
Dec 07 17:24:43.149 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.33s
Dec 07 17:24:43.156 INFO [stderr] su: No module specific data is present
Dec 07 17:24:43.442 INFO running `"docker" "inspect" "bd4abd19e8ea2f0a2b9b5af5b544e8904fc882bb0ef95ecc7a0d0a8b5e5eb002"`
Dec 07 17:24:43.655 INFO running `"docker" "rm" "-f" "bd4abd19e8ea2f0a2b9b5af5b544e8904fc882bb0ef95ecc7a0d0a8b5e5eb002"`
Dec 07 17:24:43.916 INFO [stdout] bd4abd19e8ea2f0a2b9b5af5b544e8904fc882bb0ef95ecc7a0d0a8b5e5eb002
Dec 07 17:24:43.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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"`
Dec 07 17:24:44.368 INFO [stdout] 670c9eb48f62ba10829a534c0917ad6ecece234bf9f27efa14d3754a09d12154
Dec 07 17:24:44.374 INFO running `"docker" "start" "-a" "670c9eb48f62ba10829a534c0917ad6ecece234bf9f27efa14d3754a09d12154"`
Dec 07 17:24:45.446 INFO [stderr] usermod: no changes
Dec 07 17:24:45.528 INFO [stderr]    Compiling ethereum-trie v0.4.0 (/source)
Dec 07 17:24:47.136 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.136 INFO [stderr]   --> src/lib.rs:13:28
Dec 07 17:24:47.136 INFO [stderr]    |
Dec 07 17:24:47.136 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.136 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.137 INFO [stderr]    |
Dec 07 17:24:47.137 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.137 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 07 17:24:47.137 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 07 17:24:47.137 INFO [stderr]   |
Dec 07 17:24:47.137 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:47.137 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.137 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 07 17:24:47.137 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 07 17:24:47.137 INFO [stderr]   |
Dec 07 17:24:47.137 INFO [stderr] 4 | use std::ops::Deref;
Dec 07 17:24:47.137 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.137 INFO [stderr] warning: unused import: `Hash`
Dec 07 17:24:47.137 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 07 17:24:47.137 INFO [stderr]   |
Dec 07 17:24:47.137 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:47.137 INFO [stderr]   |                 ^^^^
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.137 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 07 17:24:47.137 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 07 17:24:47.137 INFO [stderr]   |
Dec 07 17:24:47.137 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 07 17:24:47.137 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.137 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:47.137 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 07 17:24:47.137 INFO [stderr]   |
Dec 07 17:24:47.137 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:47.137 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 07 17:24:47.137 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused import: `Keccak256`
Dec 07 17:24:47.144 INFO [stderr]    --> src/merkle/node.rs:162:24
Dec 07 17:24:47.144 INFO [stderr]     |
Dec 07 17:24:47.144 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 07 17:24:47.144 INFO [stderr]     |                        ^^^^^^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.144 INFO [stderr]    --> src/merkle/node.rs:163:32
Dec 07 17:24:47.144 INFO [stderr]     |
Dec 07 17:24:47.144 INFO [stderr] 163 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.144 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.144 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:47.144 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:47.144 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.144 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.144 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.144 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 07 17:24:47.144 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.144 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.144 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.144 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.144 INFO [stderr] 
Dec 07 17:24:47.144 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 07 17:24:47.144 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 07 17:24:47.144 INFO [stderr]   |
Dec 07 17:24:47.144 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.145 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 07 17:24:47.145 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 07 17:24:47.145 INFO [stderr]   |
Dec 07 17:24:47.145 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 07 17:24:47.145 INFO [stderr]   |           ^^^^  ^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 07 17:24:47.145 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 07 17:24:47.145 INFO [stderr]   |
Dec 07 17:24:47.145 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.145 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `Change`
Dec 07 17:24:47.145 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 07 17:24:47.145 INFO [stderr]   |
Dec 07 17:24:47.145 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:47.145 INFO [stderr]   |      ^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.145 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 07 17:24:47.145 INFO [stderr]   |
Dec 07 17:24:47.145 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.145 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `merkle::MerkleNode`
Dec 07 17:24:47.145 INFO [stderr]    --> src/memory.rs:102:9
Dec 07 17:24:47.145 INFO [stderr]     |
Dec 07 17:24:47.145 INFO [stderr] 102 |     use merkle::MerkleNode;
Dec 07 17:24:47.145 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `rlp::Rlp`
Dec 07 17:24:47.145 INFO [stderr]    --> src/memory.rs:103:9
Dec 07 17:24:47.145 INFO [stderr]     |
Dec 07 17:24:47.145 INFO [stderr] 103 |     use rlp::Rlp;
Dec 07 17:24:47.145 INFO [stderr]     |         ^^^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Dec 07 17:24:47.145 INFO [stderr]    --> src/memory.rs:107:9
Dec 07 17:24:47.145 INFO [stderr]     |
Dec 07 17:24:47.145 INFO [stderr] 107 |     use std::cell::UnsafeCell;
Dec 07 17:24:47.145 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `hexutil::read_hex`
Dec 07 17:24:47.145 INFO [stderr]    --> src/memory.rs:109:9
Dec 07 17:24:47.145 INFO [stderr]     |
Dec 07 17:24:47.145 INFO [stderr] 109 |     use hexutil::read_hex;
Dec 07 17:24:47.145 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.145 INFO [stderr] warning: unused import: `Rlp`
Dec 07 17:24:47.145 INFO [stderr]  --> src/mutable.rs:2:17
Dec 07 17:24:47.145 INFO [stderr]   |
Dec 07 17:24:47.145 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 07 17:24:47.145 INFO [stderr]   |                 ^^^
Dec 07 17:24:47.145 INFO [stderr] 
Dec 07 17:24:47.444 INFO [stderr] warning: unused import: `Hasher`
Dec 07 17:24:47.444 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 07 17:24:47.444 INFO [stderr]   |
Dec 07 17:24:47.444 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:47.444 INFO [stderr]   |                       ^^^^^^
Dec 07 17:24:47.444 INFO [stderr] 
Dec 07 17:24:47.444 INFO [stderr] warning: unused import: `Decodable`
Dec 07 17:24:47.444 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 07 17:24:47.444 INFO [stderr]   |
Dec 07 17:24:47.444 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:47.444 INFO [stderr]   |                                       ^^^^^^^^^
Dec 07 17:24:47.444 INFO [stderr] 
Dec 07 17:24:47.444 INFO [stderr] warning: unused import: `Digest`
Dec 07 17:24:47.444 INFO [stderr]    --> src/merkle/node.rs:162:16
Dec 07 17:24:47.444 INFO [stderr]     |
Dec 07 17:24:47.444 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 07 17:24:47.444 INFO [stderr]     |                ^^^^^^
Dec 07 17:24:47.444 INFO [stderr] 
Dec 07 17:24:47.444 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 07 17:24:47.444 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 07 17:24:47.444 INFO [stderr]   |
Dec 07 17:24:47.444 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:47.444 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 07 17:24:47.444 INFO [stderr] 
Dec 07 17:24:47.474 INFO [stderr] warning: unused variable: `value`
Dec 07 17:24:47.474 INFO [stderr]    --> src/memory.rs:139:19
Dec 07 17:24:47.474 INFO [stderr]     |
Dec 07 17:24:47.474 INFO [stderr] 139 |         for (key, value) in &map {
Dec 07 17:24:47.474 INFO [stderr]     |                   ^^^^^ help: consider using `_value` instead
Dec 07 17:24:47.474 INFO [stderr]     |
Dec 07 17:24:47.474 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 17:24:47.474 INFO [stderr] 
Dec 07 17:24:47.568 INFO [stderr] warning: variable does not need to be mutable
Dec 07 17:24:47.568 INFO [stderr]    --> src/memory.rs:121:13
Dec 07 17:24:47.568 INFO [stderr]     |
Dec 07 17:24:47.568 INFO [stderr] 121 |         let mut btrie = MemoryTrieMut::build(&map);
Dec 07 17:24:47.568 INFO [stderr]     |             ----^^^^^
Dec 07 17:24:47.568 INFO [stderr]     |             |
Dec 07 17:24:47.568 INFO [stderr]     |             help: remove this `mut`
Dec 07 17:24:47.568 INFO [stderr]     |
Dec 07 17:24:47.568 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 07 17:24:47.568 INFO [stderr] 
Dec 07 17:24:49.398 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.93s
Dec 07 17:24:49.405 INFO [stderr] su: No module specific data is present
Dec 07 17:24:50.106 INFO running `"docker" "inspect" "670c9eb48f62ba10829a534c0917ad6ecece234bf9f27efa14d3754a09d12154"`
Dec 07 17:24:50.505 INFO running `"docker" "rm" "-f" "670c9eb48f62ba10829a534c0917ad6ecece234bf9f27efa14d3754a09d12154"`
Dec 07 17:24:50.902 INFO [stdout] 670c9eb48f62ba10829a534c0917ad6ecece234bf9f27efa14d3754a09d12154
Dec 07 17:24:50.903 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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"`
Dec 07 17:24:51.241 INFO [stdout] 761524b7e6e0ed372c0d7dcd0dfe52e634a731edbb356dbb068f4e73e710a8df
Dec 07 17:24:51.246 INFO running `"docker" "start" "-a" "761524b7e6e0ed372c0d7dcd0dfe52e634a731edbb356dbb068f4e73e710a8df"`
Dec 07 17:24:52.308 INFO [stderr] usermod: no changes
Dec 07 17:24:52.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 07 17:24:52.400 INFO [stderr]      Running /target/debug/deps/trie-289ae70f6def7aed
Dec 07 17:24:52.400 INFO [stdout] 
Dec 07 17:24:52.400 INFO [stdout] running 5 tests
Dec 07 17:24:52.416 INFO [stdout] test merkle::nibble::tests::from_into_key ... ok
Dec 07 17:24:52.416 INFO [stdout] test merkle::node::tests::encode_decode ... ok
Dec 07 17:24:52.418 INFO [stdout] test memory::tests::trie_two_keys ... ok
Dec 07 17:24:52.418 INFO [stdout] test merkle::node::tests::decode_genesis_state ... ok
Dec 07 17:24:52.452 INFO [stdout] test memory::tests::trie_middle_leaf ... ok
Dec 07 17:24:52.452 INFO [stdout] 
Dec 07 17:24:52.452 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 17:24:52.452 INFO [stdout] 
Dec 07 17:24:52.454 INFO [stderr]    Doc-tests trie
Dec 07 17:24:55.512 INFO [stdout] 
Dec 07 17:24:55.512 INFO [stdout] running 0 tests
Dec 07 17:24:55.512 INFO [stdout] 
Dec 07 17:24:55.512 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 17:24:55.512 INFO [stdout] 
Dec 07 17:24:55.519 INFO [stderr] su: No module specific data is present
Dec 07 17:24:56.069 INFO running `"docker" "inspect" "761524b7e6e0ed372c0d7dcd0dfe52e634a731edbb356dbb068f4e73e710a8df"`
Dec 07 17:24:56.262 INFO running `"docker" "rm" "-f" "761524b7e6e0ed372c0d7dcd0dfe52e634a731edbb356dbb068f4e73e710a8df"`
Dec 07 17:24:56.436 INFO [stdout] 761524b7e6e0ed372c0d7dcd0dfe52e634a731edbb356dbb068f4e73e710a8df