Dec 15 15:36:54.024 INFO testing etcommon-trie-0.4.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 15:36:54.024 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 15:36:54.408 INFO [stdout] 865d74edfeaafc2373ce6ea397733bdafbc5f611a7b6ade35794ad05fccafc2c
Dec 15 15:36:54.410 INFO running `"docker" "start" "-a" "865d74edfeaafc2373ce6ea397733bdafbc5f611a7b6ade35794ad05fccafc2c"`
Dec 15 15:36:55.795 INFO [stderr] usermod: no changes
Dec 15 15:36:55.918 INFO [stderr]    Compiling elastic-array-plus v0.10.0
Dec 15 15:36:55.919 INFO [stderr]    Compiling etcommon-hexutil v0.2.4
Dec 15 15:36:58.139 INFO [stderr]    Compiling etcommon-rlp v0.2.4
Dec 15 15:37:00.295 INFO [stderr]    Compiling etcommon-bigint v0.2.10
Dec 15 15:37:05.496 INFO [stderr]    Compiling etcommon-trie v0.4.0 (/source)
Dec 15 15:37:07.235 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 15 15:37:07.235 INFO [stderr]   --> src/lib.rs:13:28
Dec 15 15:37:07.235 INFO [stderr]    |
Dec 15 15:37:07.236 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:07.236 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:07.236 INFO [stderr]    |
Dec 15 15:37:07.236 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 15 15:37:07.236 INFO [stderr] 
Dec 15 15:37:07.237 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 15 15:37:07.237 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 15 15:37:07.237 INFO [stderr]   |
Dec 15 15:37:07.237 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 15 15:37:07.238 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 15 15:37:07.238 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 4 | use std::ops::Deref;
Dec 15 15:37:07.238 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused import: `Hash`
Dec 15 15:37:07.238 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 15 15:37:07.238 INFO [stderr]   |                 ^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 15 15:37:07.238 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 15 15:37:07.238 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 15 15:37:07.238 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 15 15:37:07.238 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 15 15:37:07.238 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 15 15:37:07.238 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 15 15:37:07.238 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:07.238 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:07.238 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.238 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:07.238 INFO [stderr]   |           ^^^^
Dec 15 15:37:07.238 INFO [stderr] 
Dec 15 15:37:07.238 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 15 15:37:07.238 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 15 15:37:07.238 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:07.239 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:07.239 INFO [stderr]   |           ^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:07.239 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 15 15:37:07.239 INFO [stderr]   |           ^^^^  ^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:07.239 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused import: `Change`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 15 15:37:07.239 INFO [stderr]   |      ^^^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:07.239 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:07.239 INFO [stderr]   |           ^^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.239 INFO [stderr] warning: unused import: `Rlp`
Dec 15 15:37:07.239 INFO [stderr]  --> src/mutable.rs:2:17
Dec 15 15:37:07.239 INFO [stderr]   |
Dec 15 15:37:07.239 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 15 15:37:07.239 INFO [stderr]   |                 ^^^
Dec 15 15:37:07.239 INFO [stderr] 
Dec 15 15:37:07.487 INFO [stderr] warning: unused import: `Hasher`
Dec 15 15:37:07.487 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 15 15:37:07.487 INFO [stderr]   |
Dec 15 15:37:07.487 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 15 15:37:07.487 INFO [stderr]   |                       ^^^^^^
Dec 15 15:37:07.487 INFO [stderr] 
Dec 15 15:37:07.487 INFO [stderr] warning: unused import: `Decodable`
Dec 15 15:37:07.487 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 15 15:37:07.487 INFO [stderr]   |
Dec 15 15:37:07.487 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 15 15:37:07.487 INFO [stderr]   |                                       ^^^^^^^^^
Dec 15 15:37:07.487 INFO [stderr] 
Dec 15 15:37:07.487 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 15 15:37:07.487 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 15 15:37:07.487 INFO [stderr]   |
Dec 15 15:37:07.487 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 15 15:37:07.487 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 15 15:37:07.487 INFO [stderr] 
Dec 15 15:37:08.903 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.07s
Dec 15 15:37:08.907 INFO [stderr] su: No module specific data is present
Dec 15 15:37:09.625 INFO running `"docker" "inspect" "865d74edfeaafc2373ce6ea397733bdafbc5f611a7b6ade35794ad05fccafc2c"`
Dec 15 15:37:10.057 INFO running `"docker" "rm" "-f" "865d74edfeaafc2373ce6ea397733bdafbc5f611a7b6ade35794ad05fccafc2c"`
Dec 15 15:37:10.346 INFO [stdout] 865d74edfeaafc2373ce6ea397733bdafbc5f611a7b6ade35794ad05fccafc2c
Dec 15 15:37:10.349 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 15:37:10.760 INFO [stdout] 4ef5badd92c6821c7421359ae2b8b51b21ac8ebf144384f49a602cbcd12e4df5
Dec 15 15:37:10.771 INFO running `"docker" "start" "-a" "4ef5badd92c6821c7421359ae2b8b51b21ac8ebf144384f49a602cbcd12e4df5"`
Dec 15 15:37:11.819 INFO [stderr] usermod: no changes
Dec 15 15:37:11.903 INFO [stderr]    Compiling etcommon-trie v0.4.0 (/source)
Dec 15 15:37:13.619 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 15 15:37:13.619 INFO [stderr]   --> src/lib.rs:13:28
Dec 15 15:37:13.619 INFO [stderr]    |
Dec 15 15:37:13.619 INFO [stderr] 13 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.619 INFO [stderr]    |                            ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:13.619 INFO [stderr]    |
Dec 15 15:37:13.619 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 15 15:37:13.619 INFO [stderr] 
Dec 15 15:37:13.619 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 15 15:37:13.619 INFO [stderr]  --> src/merkle/nibble.rs:3:22
Dec 15 15:37:13.619 INFO [stderr]   |
Dec 15 15:37:13.619 INFO [stderr] 3 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 15 15:37:13.619 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 15 15:37:13.619 INFO [stderr] 
Dec 15 15:37:13.619 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 15 15:37:13.619 INFO [stderr]  --> src/merkle/nibble.rs:4:5
Dec 15 15:37:13.619 INFO [stderr]   |
Dec 15 15:37:13.619 INFO [stderr] 4 | use std::ops::Deref;
Dec 15 15:37:13.619 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 15 15:37:13.619 INFO [stderr] 
Dec 15 15:37:13.619 INFO [stderr] warning: unused import: `Hash`
Dec 15 15:37:13.619 INFO [stderr]  --> src/merkle/nibble.rs:6:17
Dec 15 15:37:13.619 INFO [stderr]   |
Dec 15 15:37:13.619 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 15 15:37:13.619 INFO [stderr]   |                 ^^^^
Dec 15 15:37:13.619 INFO [stderr] 
Dec 15 15:37:13.619 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 15 15:37:13.619 INFO [stderr]  --> src/merkle/nibble.rs:7:16
Dec 15 15:37:13.619 INFO [stderr]   |
Dec 15 15:37:13.619 INFO [stderr] 7 | use std::fmt::{self, Debug, Formatter};
Dec 15 15:37:13.619 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 15 15:37:13.620 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 15 15:37:13.620 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `Keccak256`
Dec 15 15:37:13.620 INFO [stderr]    --> src/merkle/node.rs:162:24
Dec 15 15:37:13.620 INFO [stderr]     |
Dec 15 15:37:13.620 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 15 15:37:13.620 INFO [stderr]     |                        ^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 15 15:37:13.620 INFO [stderr]    --> src/merkle/node.rs:163:32
Dec 15 15:37:13.620 INFO [stderr]     |
Dec 15 15:37:13.620 INFO [stderr] 163 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.620 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 15 15:37:13.620 INFO [stderr]  --> src/merkle/mod.rs:6:20
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 6 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 15 15:37:13.620 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/insert.rs:2:39
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.620 INFO [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/insert.rs:5:11
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:13.620 INFO [stderr]   |           ^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/delete.rs:2:22
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.620 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/delete.rs:5:11
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:13.620 INFO [stderr]   |           ^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `NibbleSlice`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/build.rs:2:39
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.620 INFO [stderr]   |                                       ^^^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `Rlp`, `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/build.rs:7:11
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 7 | use rlp::{self, Rlp};
Dec 15 15:37:13.620 INFO [stderr]   |           ^^^^  ^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`, `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/get.rs:2:22
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 2 | use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 15 15:37:13.620 INFO [stderr]   |                      ^^^^             ^^^^^^^^^^^  ^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `Change`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/get.rs:3:6
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 15 15:37:13.620 INFO [stderr]   |      ^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `self`
Dec 15 15:37:13.620 INFO [stderr]  --> src/ops/get.rs:5:11
Dec 15 15:37:13.620 INFO [stderr]   |
Dec 15 15:37:13.620 INFO [stderr] 5 | use rlp::{self, Rlp};
Dec 15 15:37:13.620 INFO [stderr]   |           ^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `merkle::MerkleNode`
Dec 15 15:37:13.620 INFO [stderr]    --> src/memory.rs:102:9
Dec 15 15:37:13.620 INFO [stderr]     |
Dec 15 15:37:13.620 INFO [stderr] 102 |     use merkle::MerkleNode;
Dec 15 15:37:13.620 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `rlp::Rlp`
Dec 15 15:37:13.620 INFO [stderr]    --> src/memory.rs:103:9
Dec 15 15:37:13.620 INFO [stderr]     |
Dec 15 15:37:13.620 INFO [stderr] 103 |     use rlp::Rlp;
Dec 15 15:37:13.620 INFO [stderr]     |         ^^^^^^^^
Dec 15 15:37:13.620 INFO [stderr] 
Dec 15 15:37:13.620 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Dec 15 15:37:13.620 INFO [stderr]    --> src/memory.rs:107:9
Dec 15 15:37:13.620 INFO [stderr]     |
Dec 15 15:37:13.620 INFO [stderr] 107 |     use std::cell::UnsafeCell;
Dec 15 15:37:13.621 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 15 15:37:13.621 INFO [stderr] 
Dec 15 15:37:13.621 INFO [stderr] warning: unused import: `Rlp`
Dec 15 15:37:13.621 INFO [stderr]  --> src/mutable.rs:2:17
Dec 15 15:37:13.621 INFO [stderr]   |
Dec 15 15:37:13.621 INFO [stderr] 2 | use rlp::{self, Rlp};
Dec 15 15:37:13.621 INFO [stderr]   |                 ^^^
Dec 15 15:37:13.621 INFO [stderr] 
Dec 15 15:37:13.931 INFO [stderr] warning: unused import: `Hasher`
Dec 15 15:37:13.931 INFO [stderr]  --> src/merkle/nibble.rs:6:23
Dec 15 15:37:13.931 INFO [stderr]   |
Dec 15 15:37:13.931 INFO [stderr] 6 | use std::hash::{Hash, Hasher};
Dec 15 15:37:13.931 INFO [stderr]   |                       ^^^^^^
Dec 15 15:37:13.931 INFO [stderr] 
Dec 15 15:37:13.931 INFO [stderr] warning: unused import: `Decodable`
Dec 15 15:37:13.931 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 15 15:37:13.931 INFO [stderr]   |
Dec 15 15:37:13.931 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 15 15:37:13.931 INFO [stderr]   |                                       ^^^^^^^^^
Dec 15 15:37:13.931 INFO [stderr] 
Dec 15 15:37:13.931 INFO [stderr] warning: unused import: `Digest`
Dec 15 15:37:13.931 INFO [stderr]    --> src/merkle/node.rs:162:16
Dec 15 15:37:13.931 INFO [stderr]     |
Dec 15 15:37:13.931 INFO [stderr] 162 |     use sha3::{Digest, Keccak256};
Dec 15 15:37:13.931 INFO [stderr]     |                ^^^^^^
Dec 15 15:37:13.931 INFO [stderr] 
Dec 15 15:37:13.931 INFO [stderr] warning: unused import: `DatabaseHandle`
Dec 15 15:37:13.931 INFO [stderr]  --> src/ops/build.rs:3:14
Dec 15 15:37:13.931 INFO [stderr]   |
Dec 15 15:37:13.931 INFO [stderr] 3 | use {Change, DatabaseHandle};
Dec 15 15:37:13.931 INFO [stderr]   |              ^^^^^^^^^^^^^^
Dec 15 15:37:13.931 INFO [stderr] 
Dec 15 15:37:13.931 INFO [stderr] warning: unused variable: `value`
Dec 15 15:37:13.931 INFO [stderr]    --> src/memory.rs:138:19
Dec 15 15:37:13.931 INFO [stderr]     |
Dec 15 15:37:13.931 INFO [stderr] 138 |         for (key, value) in &map {
Dec 15 15:37:13.931 INFO [stderr]     |                   ^^^^^ help: consider using `_value` instead
Dec 15 15:37:13.931 INFO [stderr]     |
Dec 15 15:37:13.931 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 15 15:37:13.931 INFO [stderr] 
Dec 15 15:37:14.018 INFO [stderr] warning: variable does not need to be mutable
Dec 15 15:37:14.019 INFO [stderr]    --> src/memory.rs:120:13
Dec 15 15:37:14.019 INFO [stderr]     |
Dec 15 15:37:14.019 INFO [stderr] 120 |         let mut btrie = MemoryTrieMut::build(&map);
Dec 15 15:37:14.019 INFO [stderr]     |             ----^^^^^
Dec 15 15:37:14.019 INFO [stderr]     |             |
Dec 15 15:37:14.019 INFO [stderr]     |             help: remove this `mut`
Dec 15 15:37:14.019 INFO [stderr]     |
Dec 15 15:37:14.019 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 15:37:14.019 INFO [stderr] 
Dec 15 15:37:15.547 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.70s
Dec 15 15:37:15.555 INFO [stderr] su: No module specific data is present
Dec 15 15:37:16.489 INFO running `"docker" "inspect" "4ef5badd92c6821c7421359ae2b8b51b21ac8ebf144384f49a602cbcd12e4df5"`
Dec 15 15:37:16.787 INFO running `"docker" "rm" "-f" "4ef5badd92c6821c7421359ae2b8b51b21ac8ebf144384f49a602cbcd12e4df5"`
Dec 15 15:37:17.031 INFO [stdout] 4ef5badd92c6821c7421359ae2b8b51b21ac8ebf144384f49a602cbcd12e4df5
Dec 15 15:37:17.033 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 15:37:17.479 INFO [stdout] 0b6c5baab8b363f02db1be758692d7969c643c74e7c813a3148a155f846eb6d4
Dec 15 15:37:17.481 INFO running `"docker" "start" "-a" "0b6c5baab8b363f02db1be758692d7969c643c74e7c813a3148a155f846eb6d4"`
Dec 15 15:37:18.419 INFO [stderr] usermod: no changes
Dec 15 15:37:18.587 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
Dec 15 15:37:18.598 INFO [stderr]      Running /target/debug/deps/trie-cb4c2faf5c713867
Dec 15 15:37:18.602 INFO [stdout] 
Dec 15 15:37:18.604 INFO [stdout] running 5 tests
Dec 15 15:37:18.607 INFO [stdout] test merkle::nibble::tests::from_into_key ... ok
Dec 15 15:37:18.609 INFO [stdout] test memory::tests::trie_two_keys ... ok
Dec 15 15:37:18.623 INFO [stdout] test merkle::node::tests::encode_decode ... ok
Dec 15 15:37:18.623 INFO [stdout] test merkle::node::tests::decode_genesis_state ... ok
Dec 15 15:37:18.623 INFO [stderr]    Doc-tests trie
Dec 15 15:37:18.623 INFO [stdout] test memory::tests::trie_middle_leaf ... ok
Dec 15 15:37:18.623 INFO [stdout] 
Dec 15 15:37:18.623 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 15:37:18.623 INFO [stdout] 
Dec 15 15:37:21.615 INFO [stdout] 
Dec 15 15:37:21.615 INFO [stdout] running 0 tests
Dec 15 15:37:21.615 INFO [stdout] 
Dec 15 15:37:21.615 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 15:37:21.615 INFO [stdout] 
Dec 15 15:37:21.622 INFO [stderr] su: No module specific data is present
Dec 15 15:37:22.663 INFO running `"docker" "inspect" "0b6c5baab8b363f02db1be758692d7969c643c74e7c813a3148a155f846eb6d4"`
Dec 15 15:37:22.995 INFO running `"docker" "rm" "-f" "0b6c5baab8b363f02db1be758692d7969c643c74e7c813a3148a155f846eb6d4"`
Dec 15 15:37:23.323 INFO [stdout] 0b6c5baab8b363f02db1be758692d7969c643c74e7c813a3148a155f846eb6d4