Dec 07 17:24:33.148 INFO testing ethereum-trie-0.4.0 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 17:24:33.148 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 17:24:33.378 INFO [stdout] 2381a51cb682b3abdf448ed653c0ddbc3e0171db793d3c23e2c9db810108b2a5
Dec 07 17:24:33.380 INFO running `"docker" "start" "-a" "2381a51cb682b3abdf448ed653c0ddbc3e0171db793d3c23e2c9db810108b2a5"`
Dec 07 17:24:33.802 INFO [stderr] usermod: no changes
Dec 07 17:24:33.880 INFO [stderr]    Compiling ethereum-hexutil v0.2.3
Dec 07 17:24:33.884 INFO [stderr]    Compiling sha3 v0.6.0
Dec 07 17:24:35.090 INFO [stderr]    Compiling ethereum-rlp v0.2.3
Dec 07 17:24:36.718 INFO [stderr]    Compiling ethereum-bigint v0.2.9
Dec 07 17:24:40.342 INFO [stderr]    Compiling ethereum-trie v0.4.0 (/source)
Dec 07 17:24:41.756 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:41.756 INFO [stderr]   --> src/lib.rs:13:28
Dec 07 17:24:41.756 INFO [stderr]    |
Dec 07 17:24:41.756 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.756 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.756 INFO [stderr]    |
Dec 07 17:24:41.756 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 17:24:41.756 INFO [stderr] 
Dec 07 17:24:41.756 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 07 17:24:41.756 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 07 17:24:41.756 INFO [stderr]   |
Dec 07 17:24:41.756 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:41.756 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 07 17:24:41.756 INFO [stderr] 
Dec 07 17:24:41.756 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 07 17:24:41.756 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 07 17:24:41.756 INFO [stderr]   |
Dec 07 17:24:41.756 INFO [stderr] 4 | use std::ops::Deref;
Dec 07 17:24:41.756 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 07 17:24:41.756 INFO [stderr] 
Dec 07 17:24:41.756 INFO [stderr] warning: unused import: `Hash`
Dec 07 17:24:41.756 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 07 17:24:41.756 INFO [stderr]   |
Dec 07 17:24:41.756 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:41.756 INFO [stderr]   |                 ^^^^
Dec 07 17:24:41.756 INFO [stderr] 
Dec 07 17:24:41.756 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 07 17:24:41.756 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 07 17:24:41.756 INFO [stderr]   |
Dec 07 17:24:41.756 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 07 17:24:41.756 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 07 17:24:41.756 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:41.757 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:41.757 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 07 17:24:41.757 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:41.757 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.757 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.757 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.757 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.757 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.757 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 07 17:24:41.757 INFO [stderr]   |           ^^^^  ^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:41.757 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `Change`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:41.757 INFO [stderr]   |      ^^^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:41.757 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:41.757 INFO [stderr]   |           ^^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.757 INFO [stderr] warning: unused import: `Rlp`
Dec 07 17:24:41.757 INFO [stderr]  --> src/mutable.rs:2:17
Dec 07 17:24:41.757 INFO [stderr]   |
Dec 07 17:24:41.757 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 07 17:24:41.757 INFO [stderr]   |                 ^^^
Dec 07 17:24:41.757 INFO [stderr] 
Dec 07 17:24:41.998 INFO [stderr] warning: unused import: `Hasher`
Dec 07 17:24:41.998 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 07 17:24:41.998 INFO [stderr]   |
Dec 07 17:24:41.998 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:41.998 INFO [stderr]   |                       ^^^^^^
Dec 07 17:24:41.998 INFO [stderr] 
Dec 07 17:24:41.998 INFO [stderr] warning: unused import: `Decodable`
Dec 07 17:24:41.998 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 07 17:24:41.998 INFO [stderr]   |
Dec 07 17:24:41.998 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:41.998 INFO [stderr]   |                                       ^^^^^^^^^
Dec 07 17:24:41.999 INFO [stderr] 
Dec 07 17:24:41.999 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 07 17:24:41.999 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 07 17:24:41.999 INFO [stderr]   |
Dec 07 17:24:41.999 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:41.999 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 07 17:24:41.999 INFO [stderr] 
Dec 07 17:24:43.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.39s
Dec 07 17:24:43.216 INFO [stderr] su: No module specific data is present
Dec 07 17:24:43.602 INFO running `"docker" "inspect" "2381a51cb682b3abdf448ed653c0ddbc3e0171db793d3c23e2c9db810108b2a5"`
Dec 07 17:24:43.874 INFO running `"docker" "rm" "-f" "2381a51cb682b3abdf448ed653c0ddbc3e0171db793d3c23e2c9db810108b2a5"`
Dec 07 17:24:44.251 INFO [stdout] 2381a51cb682b3abdf448ed653c0ddbc3e0171db793d3c23e2c9db810108b2a5
Dec 07 17:24:44.256 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 17:24:44.576 INFO [stdout] 46cf1b8c2402a69a283bd99843ce40b0a3a5cd7a622fafe3f9f3207de8cbf69c
Dec 07 17:24:44.580 INFO running `"docker" "start" "-a" "46cf1b8c2402a69a283bd99843ce40b0a3a5cd7a622fafe3f9f3207de8cbf69c"`
Dec 07 17:24:45.473 INFO [stderr] usermod: no changes
Dec 07 17:24:45.564 INFO [stderr]    Compiling ethereum-trie v0.4.0 (/source)
Dec 07 17:24:47.239 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.239 INFO [stderr]   --> src/lib.rs:13:28
Dec 07 17:24:47.239 INFO [stderr]    |
Dec 07 17:24:47.239 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.239 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.239 INFO [stderr]    |
Dec 07 17:24:47.239 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 17:24:47.239 INFO [stderr] 
Dec 07 17:24:47.239 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 07 17:24:47.239 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 07 17:24:47.239 INFO [stderr]   |
Dec 07 17:24:47.239 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:47.239 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 07 17:24:47.239 INFO [stderr] 
Dec 07 17:24:47.239 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 07 17:24:47.240 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 07 17:24:47.240 INFO [stderr]   |
Dec 07 17:24:47.241 INFO [stderr] 4 | use std::ops::Deref;
Dec 07 17:24:47.241 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 07 17:24:47.241 INFO [stderr] 
Dec 07 17:24:47.241 INFO [stderr] warning: unused import: `Hash`
Dec 07 17:24:47.241 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 07 17:24:47.241 INFO [stderr]   |
Dec 07 17:24:47.241 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:47.241 INFO [stderr]   |                 ^^^^
Dec 07 17:24:47.241 INFO [stderr] 
Dec 07 17:24:47.241 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 07 17:24:47.241 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 07 17:24:47.241 INFO [stderr]   |
Dec 07 17:24:47.241 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 07 17:24:47.241 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 07 17:24:47.241 INFO [stderr] 
Dec 07 17:24:47.241 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:47.241 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 07 17:24:47.241 INFO [stderr]   |
Dec 07 17:24:47.241 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:47.242 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 07 17:24:47.242 INFO [stderr] 
Dec 07 17:24:47.242 INFO [stderr] warning: unused import: `Keccak256`
Dec 07 17:24:47.242 INFO [stderr]    --> src/merkle/node.rs:162:24
Dec 07 17:24:47.242 INFO [stderr]     |
Dec 07 17:24:47.242 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 07 17:24:47.242 INFO [stderr]     |                        ^^^^^^^^^
Dec 07 17:24:47.242 INFO [stderr] 
Dec 07 17:24:47.242 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.242 INFO [stderr]    --> src/merkle/node.rs:163:32
Dec 07 17:24:47.242 INFO [stderr]     |
Dec 07 17:24:47.242 INFO [stderr] 163 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.242 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.242 INFO [stderr] 
Dec 07 17:24:47.242 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 07 17:24:47.242 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 07 17:24:47.242 INFO [stderr]   |
Dec 07 17:24:47.242 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 07 17:24:47.242 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 07 17:24:47.242 INFO [stderr] 
Dec 07 17:24:47.242 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 07 17:24:47.242 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 07 17:24:47.242 INFO [stderr]   |
Dec 07 17:24:47.242 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.242 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 07 17:24:47.243 INFO [stderr]   |
Dec 07 17:24:47.243 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.243 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 07 17:24:47.243 INFO [stderr]   |
Dec 07 17:24:47.243 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.243 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 07 17:24:47.243 INFO [stderr]   |
Dec 07 17:24:47.243 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.243 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 07 17:24:47.243 INFO [stderr]   |
Dec 07 17:24:47.243 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.243 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 07 17:24:47.243 INFO [stderr]   |
Dec 07 17:24:47.243 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 07 17:24:47.243 INFO [stderr]   |           ^^^^  ^^^
Dec 07 17:24:47.243 INFO [stderr] 
Dec 07 17:24:47.243 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 07 17:24:47.243 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 07 17:24:47.244 INFO [stderr]   |
Dec 07 17:24:47.244 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 07 17:24:47.244 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 07 17:24:47.244 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `Change`
Dec 07 17:24:47.252 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 07 17:24:47.252 INFO [stderr]   |
Dec 07 17:24:47.252 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:47.252 INFO [stderr]   |      ^^^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `self`
Dec 07 17:24:47.252 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 07 17:24:47.252 INFO [stderr]   |
Dec 07 17:24:47.252 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 07 17:24:47.252 INFO [stderr]   |           ^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `merkle::MerkleNode`
Dec 07 17:24:47.252 INFO [stderr]    --> src/memory.rs:102:9
Dec 07 17:24:47.252 INFO [stderr]     |
Dec 07 17:24:47.252 INFO [stderr] 102 |     use merkle::MerkleNode;
Dec 07 17:24:47.252 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `rlp::Rlp`
Dec 07 17:24:47.252 INFO [stderr]    --> src/memory.rs:103:9
Dec 07 17:24:47.252 INFO [stderr]     |
Dec 07 17:24:47.252 INFO [stderr] 103 |     use rlp::Rlp;
Dec 07 17:24:47.252 INFO [stderr]     |         ^^^^^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Dec 07 17:24:47.252 INFO [stderr]    --> src/memory.rs:107:9
Dec 07 17:24:47.252 INFO [stderr]     |
Dec 07 17:24:47.252 INFO [stderr] 107 |     use std::cell::UnsafeCell;
Dec 07 17:24:47.252 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `hexutil::read_hex`
Dec 07 17:24:47.252 INFO [stderr]    --> src/memory.rs:109:9
Dec 07 17:24:47.252 INFO [stderr]     |
Dec 07 17:24:47.252 INFO [stderr] 109 |     use hexutil::read_hex;
Dec 07 17:24:47.252 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.252 INFO [stderr] warning: unused import: `Rlp`
Dec 07 17:24:47.252 INFO [stderr]  --> src/mutable.rs:2:17
Dec 07 17:24:47.252 INFO [stderr]   |
Dec 07 17:24:47.252 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 07 17:24:47.252 INFO [stderr]   |                 ^^^
Dec 07 17:24:47.252 INFO [stderr] 
Dec 07 17:24:47.536 INFO [stderr] warning: unused import: `Hasher`
Dec 07 17:24:47.536 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 07 17:24:47.536 INFO [stderr]   |
Dec 07 17:24:47.536 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 07 17:24:47.536 INFO [stderr]   |                       ^^^^^^
Dec 07 17:24:47.536 INFO [stderr] 
Dec 07 17:24:47.536 INFO [stderr] warning: unused import: `Decodable`
Dec 07 17:24:47.536 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 07 17:24:47.536 INFO [stderr]   |
Dec 07 17:24:47.536 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 07 17:24:47.536 INFO [stderr]   |                                       ^^^^^^^^^
Dec 07 17:24:47.536 INFO [stderr] 
Dec 07 17:24:47.536 INFO [stderr] warning: unused import: `Digest`
Dec 07 17:24:47.536 INFO [stderr]    --> src/merkle/node.rs:162:16
Dec 07 17:24:47.536 INFO [stderr]     |
Dec 07 17:24:47.536 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 07 17:24:47.536 INFO [stderr]     |                ^^^^^^
Dec 07 17:24:47.536 INFO [stderr] 
Dec 07 17:24:47.536 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 07 17:24:47.536 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 07 17:24:47.536 INFO [stderr]   |
Dec 07 17:24:47.536 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 07 17:24:47.536 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 07 17:24:47.536 INFO [stderr] 
Dec 07 17:24:47.567 INFO [stderr] warning: unused variable: `value`
Dec 07 17:24:47.567 INFO [stderr]    --> src/memory.rs:139:19
Dec 07 17:24:47.567 INFO [stderr]     |
Dec 07 17:24:47.567 INFO [stderr] 139 |         for (key, value) in &map {
Dec 07 17:24:47.567 INFO [stderr]     |                   ^^^^^ help: consider using `_value` instead
Dec 07 17:24:47.567 INFO [stderr]     |
Dec 07 17:24:47.567 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 07 17:24:47.567 INFO [stderr] 
Dec 07 17:24:47.652 INFO [stderr] warning: variable does not need to be mutable
Dec 07 17:24:47.652 INFO [stderr]    --> src/memory.rs:121:13
Dec 07 17:24:47.652 INFO [stderr]     |
Dec 07 17:24:47.652 INFO [stderr] 121 |         let mut btrie = MemoryTrieMut::build(&map);
Dec 07 17:24:47.652 INFO [stderr]     |             ----^^^^^
Dec 07 17:24:47.652 INFO [stderr]     |             |
Dec 07 17:24:47.652 INFO [stderr]     |             help: remove this `mut`
Dec 07 17:24:47.652 INFO [stderr]     |
Dec 07 17:24:47.652 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 07 17:24:47.652 INFO [stderr] 
Dec 07 17:24:49.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
Dec 07 17:24:49.625 INFO [stderr] su: No module specific data is present
Dec 07 17:24:50.286 INFO running `"docker" "inspect" "46cf1b8c2402a69a283bd99843ce40b0a3a5cd7a622fafe3f9f3207de8cbf69c"`
Dec 07 17:24:50.614 INFO running `"docker" "rm" "-f" "46cf1b8c2402a69a283bd99843ce40b0a3a5cd7a622fafe3f9f3207de8cbf69c"`
Dec 07 17:24:50.912 INFO [stdout] 46cf1b8c2402a69a283bd99843ce40b0a3a5cd7a622fafe3f9f3207de8cbf69c
Dec 07 17:24:50.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 17:24:51.306 INFO [stdout] f57d3dbd2778b0bc3b574c51a219623846dd0484b14be2ae57af7e462130978a
Dec 07 17:24:51.316 INFO running `"docker" "start" "-a" "f57d3dbd2778b0bc3b574c51a219623846dd0484b14be2ae57af7e462130978a"`
Dec 07 17:24:52.346 INFO [stderr] usermod: no changes
Dec 07 17:24:52.441 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 07 17:24:52.441 INFO [stderr]      Running /target/debug/deps/trie-ccd675d4d34d38b4
Dec 07 17:24:52.456 INFO [stdout] 
Dec 07 17:24:52.456 INFO [stdout] running 5 tests
Dec 07 17:24:52.456 INFO [stdout] test merkle::node::tests::encode_decode ... ok
Dec 07 17:24:52.456 INFO [stdout] test merkle::node::tests::decode_genesis_state ... ok
Dec 07 17:24:52.468 INFO [stdout] test merkle::nibble::tests::from_into_key ... ok
Dec 07 17:24:52.468 INFO [stdout] test memory::tests::trie_two_keys ... ok
Dec 07 17:24:52.472 INFO [stdout] test memory::tests::trie_middle_leaf ... ok
Dec 07 17:24:52.472 INFO [stdout] 
Dec 07 17:24:52.472 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 17:24:52.472 INFO [stdout] 
Dec 07 17:24:52.476 INFO [stderr]    Doc-tests trie
Dec 07 17:24:55.628 INFO [stdout] 
Dec 07 17:24:55.628 INFO [stdout] running 0 tests
Dec 07 17:24:55.628 INFO [stdout] 
Dec 07 17:24:55.628 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 17:24:55.628 INFO [stdout] 
Dec 07 17:24:55.634 INFO [stderr] su: No module specific data is present
Dec 07 17:24:56.046 INFO running `"docker" "inspect" "f57d3dbd2778b0bc3b574c51a219623846dd0484b14be2ae57af7e462130978a"`
Dec 07 17:24:56.278 INFO running `"docker" "rm" "-f" "f57d3dbd2778b0bc3b574c51a219623846dd0484b14be2ae57af7e462130978a"`
Dec 07 17:24:56.439 INFO [stdout] f57d3dbd2778b0bc3b574c51a219623846dd0484b14be2ae57af7e462130978a