Dec 03 12:41:36.210 INFO testing etcommon-trie-test-0.3.12 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 12:41:36.210 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 12:41:36.640 INFO [stdout] f09d77540d83b4a49544d2f0fbc3cdfa74897ed253497188e935c7f8a7d03493
Dec 03 12:41:36.642 INFO running `"docker" "start" "-a" "f09d77540d83b4a49544d2f0fbc3cdfa74897ed253497188e935c7f8a7d03493"`
Dec 03 12:41:38.422 INFO [stderr] usermod: no changes
Dec 03 12:41:38.543 INFO [stderr]    Compiling etcommon-trie-test v0.3.12 (/source)
Dec 03 12:41:40.347 INFO [stderr] warning: unused imports: `DerefMut`, `Deref`
Dec 03 12:41:40.347 INFO [stderr]   --> src/lib.rs:12:16
Dec 03 12:41:40.347 INFO [stderr]    |
Dec 03 12:41:40.347 INFO [stderr] 12 | use std::ops::{Deref, DerefMut};
Dec 03 12:41:40.347 INFO [stderr]    |                ^^^^^  ^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr]    |
Dec 03 12:41:40.347 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/nibble.rs:1:22
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 1 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 03 12:41:40.347 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/nibble.rs:2:5
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 2 | use std::ops::Deref;
Dec 03 12:41:40.347 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused import: `Hash`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/nibble.rs:4:17
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Dec 03 12:41:40.347 INFO [stderr]   |                 ^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/nibble.rs:5:16
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 5 | use std::fmt::{self, Debug, Formatter};
Dec 03 12:41:40.347 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 03 12:41:40.347 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 03 12:41:40.347 INFO [stderr]  --> src/merkle/mod.rs:4:20
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 4 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 03 12:41:40.347 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused import: `::Trie`
Dec 03 12:41:40.347 INFO [stderr]  --> src/database/memory.rs:1:5
Dec 03 12:41:40.347 INFO [stderr]   |
Dec 03 12:41:40.347 INFO [stderr] 1 | use ::Trie;
Dec 03 12:41:40.347 INFO [stderr]   |     ^^^^^^
Dec 03 12:41:40.347 INFO [stderr] 
Dec 03 12:41:40.347 INFO [stderr] warning: unused import: `DatabaseOwned`
Dec 03 12:41:40.347 INFO [stderr]  --> src/database/memory.rs:2:23
Dec 03 12:41:40.348 INFO [stderr]   |
Dec 03 12:41:40.348 INFO [stderr] 2 | use super::{Database, DatabaseOwned, DatabaseGuard};
Dec 03 12:41:40.348 INFO [stderr]   |                       ^^^^^^^^^^^^^
Dec 03 12:41:40.348 INFO [stderr] 
Dec 03 12:41:40.671 INFO [stderr] warning: unused import: `Hasher`
Dec 03 12:41:40.671 INFO [stderr]  --> src/merkle/nibble.rs:4:23
Dec 03 12:41:40.671 INFO [stderr]   |
Dec 03 12:41:40.671 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Dec 03 12:41:40.671 INFO [stderr]   |                       ^^^^^^
Dec 03 12:41:40.671 INFO [stderr] 
Dec 03 12:41:40.671 INFO [stderr] warning: unused import: `Decodable`
Dec 03 12:41:40.671 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 03 12:41:40.671 INFO [stderr]   |
Dec 03 12:41:40.671 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 03 12:41:40.671 INFO [stderr]   |                                       ^^^^^^^^^
Dec 03 12:41:40.671 INFO [stderr] 
Dec 03 12:41:40.690 INFO [stderr] warning: unused variable: `value`
Dec 03 12:41:40.690 INFO [stderr]    --> src/lib.rs:283:74
Dec 03 12:41:40.690 INFO [stderr]     |
Dec 03 12:41:40.690 INFO [stderr] 283 |             let submap = Self::build_submap(1, map.iter().filter(|&(key, value)| {
Dec 03 12:41:40.690 INFO [stderr]     |                                                                          ^^^^^ help: consider using `_value` instead
Dec 03 12:41:40.690 INFO [stderr]     |
Dec 03 12:41:40.690 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 03 12:41:40.691 INFO [stderr] 
Dec 03 12:41:40.691 INFO [stderr] warning: unused variable: `value`
Dec 03 12:41:40.691 INFO [stderr]    --> src/lib.rs:296:29
Dec 03 12:41:40.691 INFO [stderr]     |
Dec 03 12:41:40.691 INFO [stderr] 296 |             .filter(|&(key, value)| key.len() == 0).next()
Dec 03 12:41:40.691 INFO [stderr]     |                             ^^^^^ help: consider using `_value` instead
Dec 03 12:41:40.691 INFO [stderr] 
Dec 03 12:41:40.691 INFO [stderr] warning: unused variable: `key`
Dec 03 12:41:40.691 INFO [stderr]    --> src/lib.rs:297:20
Dec 03 12:41:40.691 INFO [stderr]     |
Dec 03 12:41:40.691 INFO [stderr] 297 |             .map(|(key, value)| value.clone());
Dec 03 12:41:40.691 INFO [stderr]     |                    ^^^ help: consider using `_key` instead
Dec 03 12:41:40.691 INFO [stderr] 
Dec 03 12:41:40.692 INFO [stderr] warning: unused variable: `sub_nodes`
Dec 03 12:41:40.692 INFO [stderr]    --> src/lib.rs:632:44
Dec 03 12:41:40.692 INFO [stderr]     |
Dec 03 12:41:40.692 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Dec 03 12:41:40.692 INFO [stderr]     |                                            ^^^^^^^^^ help: consider using `_sub_nodes` instead
Dec 03 12:41:40.692 INFO [stderr] 
Dec 03 12:41:40.692 INFO [stderr] warning: unused variable: `sub_additional`
Dec 03 12:41:40.692 INFO [stderr]    --> src/lib.rs:632:55
Dec 03 12:41:40.692 INFO [stderr]     |
Dec 03 12:41:40.692 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Dec 03 12:41:40.692 INFO [stderr]     |                                                       ^^^^^^^^^^^^^^ help: consider using `_sub_additional` instead
Dec 03 12:41:40.692 INFO [stderr] 
Dec 03 12:41:40.831 INFO [stderr] warning: method is never used: `free`
Dec 03 12:41:40.831 INFO [stderr]   --> src/database/mod.rs:96:5
Dec 03 12:41:40.831 INFO [stderr]    |
Dec 03 12:41:40.831 INFO [stderr] 96 |     pub fn free<'b>(&'b mut self, hash: H256) {
Dec 03 12:41:40.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 12:41:40.831 INFO [stderr]    |
Dec 03 12:41:40.831 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 03 12:41:40.831 INFO [stderr] 
Dec 03 12:41:40.831 INFO [stderr] warning: field is never used: `freed`
Dec 03 12:41:40.831 INFO [stderr]    --> src/database/mod.rs:123:5
Dec 03 12:41:40.831 INFO [stderr]     |
Dec 03 12:41:40.831 INFO [stderr] 123 |     freed: Vec<H256>,
Dec 03 12:41:40.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 03 12:41:40.831 INFO [stderr] 
Dec 03 12:41:41.478 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
Dec 03 12:41:41.487 INFO [stderr] su: No module specific data is present
Dec 03 12:41:42.000 INFO running `"docker" "inspect" "f09d77540d83b4a49544d2f0fbc3cdfa74897ed253497188e935c7f8a7d03493"`
Dec 03 12:41:42.237 INFO running `"docker" "rm" "-f" "f09d77540d83b4a49544d2f0fbc3cdfa74897ed253497188e935c7f8a7d03493"`
Dec 03 12:41:42.533 INFO [stdout] f09d77540d83b4a49544d2f0fbc3cdfa74897ed253497188e935c7f8a7d03493
Dec 03 12:41:42.539 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 12:41:43.044 INFO [stdout] 31e129a1852488978c7409d112da10ce7a675c0dfdfe49de8db99d03b69c86ee
Dec 03 12:41:43.046 INFO running `"docker" "start" "-a" "31e129a1852488978c7409d112da10ce7a675c0dfdfe49de8db99d03b69c86ee"`
Dec 03 12:41:44.639 INFO [stderr] usermod: no changes
Dec 03 12:41:44.807 INFO [stderr]    Compiling etcommon-trie-test v0.3.12 (/source)
Dec 03 12:41:46.619 INFO [stderr] warning: unused imports: `DerefMut`, `Deref`
Dec 03 12:41:46.619 INFO [stderr]   --> src/lib.rs:12:16
Dec 03 12:41:46.619 INFO [stderr]    |
Dec 03 12:41:46.619 INFO [stderr] 12 | use std::ops::{Deref, DerefMut};
Dec 03 12:41:46.619 INFO [stderr]    |                ^^^^^  ^^^^^^^^
Dec 03 12:41:46.619 INFO [stderr]    |
Dec 03 12:41:46.619 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused imports: `Decodable`, `Encodable`, `Prototype`
Dec 03 12:41:46.619 INFO [stderr]  --> src/merkle/nibble.rs:1:22
Dec 03 12:41:46.619 INFO [stderr]   |
Dec 03 12:41:46.619 INFO [stderr] 1 | use rlp::{RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 03 12:41:46.619 INFO [stderr]   |                      ^^^^^^^^^  ^^^^^^^^^       ^^^^^^^^^
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused import: `std::ops::Deref`
Dec 03 12:41:46.619 INFO [stderr]  --> src/merkle/nibble.rs:2:5
Dec 03 12:41:46.619 INFO [stderr]   |
Dec 03 12:41:46.619 INFO [stderr] 2 | use std::ops::Deref;
Dec 03 12:41:46.619 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused import: `Hash`
Dec 03 12:41:46.619 INFO [stderr]  --> src/merkle/nibble.rs:4:17
Dec 03 12:41:46.619 INFO [stderr]   |
Dec 03 12:41:46.619 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Dec 03 12:41:46.619 INFO [stderr]   |                 ^^^^
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused imports: `Debug`, `Formatter`, `self`
Dec 03 12:41:46.619 INFO [stderr]  --> src/merkle/nibble.rs:5:16
Dec 03 12:41:46.619 INFO [stderr]   |
Dec 03 12:41:46.619 INFO [stderr] 5 | use std::fmt::{self, Debug, Formatter};
Dec 03 12:41:46.619 INFO [stderr]   |                ^^^^  ^^^^^  ^^^^^^^^^
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused imports: `NibbleSlice`, `Nibble`
Dec 03 12:41:46.619 INFO [stderr]  --> src/merkle/node.rs:1:27
Dec 03 12:41:46.619 INFO [stderr]   |
Dec 03 12:41:46.619 INFO [stderr] 1 | use super::nibble::{self, Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 03 12:41:46.619 INFO [stderr]   |                           ^^^^^^             ^^^^^^^^^^^
Dec 03 12:41:46.619 INFO [stderr] 
Dec 03 12:41:46.619 INFO [stderr] warning: unused import: `Keccak256`
Dec 03 12:41:46.620 INFO [stderr]    --> src/merkle/node.rs:157:24
Dec 03 12:41:46.620 INFO [stderr]     |
Dec 03 12:41:46.620 INFO [stderr] 157 |     use sha3::{Digest, Keccak256};
Dec 03 12:41:46.620 INFO [stderr]     |                        ^^^^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:46.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleVec`, `Nibble`
Dec 03 12:41:46.620 INFO [stderr]    --> src/merkle/node.rs:158:32
Dec 03 12:41:46.620 INFO [stderr]     |
Dec 03 12:41:46.620 INFO [stderr] 158 |     use merkle::nibble::{self, NibbleVec, NibbleSlice, Nibble};
Dec 03 12:41:46.620 INFO [stderr]     |                                ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:46.620 INFO [stderr] warning: unused imports: `NibbleSlice`, `NibbleType`, `NibbleVec`, `Nibble`
Dec 03 12:41:46.620 INFO [stderr]  --> src/merkle/mod.rs:4:20
Dec 03 12:41:46.620 INFO [stderr]   |
Dec 03 12:41:46.620 INFO [stderr] 4 | use self::nibble::{Nibble, NibbleVec, NibbleSlice, NibbleType};
Dec 03 12:41:46.620 INFO [stderr]   |                    ^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:46.620 INFO [stderr] warning: unused import: `::Trie`
Dec 03 12:41:46.620 INFO [stderr]  --> src/database/memory.rs:1:5
Dec 03 12:41:46.620 INFO [stderr]   |
Dec 03 12:41:46.620 INFO [stderr] 1 | use ::Trie;
Dec 03 12:41:46.620 INFO [stderr]   |     ^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:46.620 INFO [stderr] warning: unused import: `DatabaseOwned`
Dec 03 12:41:46.620 INFO [stderr]  --> src/database/memory.rs:2:23
Dec 03 12:41:46.620 INFO [stderr]   |
Dec 03 12:41:46.620 INFO [stderr] 2 | use super::{Database, DatabaseOwned, DatabaseGuard};
Dec 03 12:41:46.620 INFO [stderr]   |                       ^^^^^^^^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:46.620 INFO [stderr] warning: unused import: `std::cell::UnsafeCell`
Dec 03 12:41:46.620 INFO [stderr]    --> src/lib.rs:726:9
Dec 03 12:41:46.620 INFO [stderr]     |
Dec 03 12:41:46.620 INFO [stderr] 726 |     use std::cell::UnsafeCell;
Dec 03 12:41:46.620 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 03 12:41:46.620 INFO [stderr] 
Dec 03 12:41:47.044 INFO [stderr] warning: unused import: `Hasher`
Dec 03 12:41:47.044 INFO [stderr]  --> src/merkle/nibble.rs:4:23
Dec 03 12:41:47.044 INFO [stderr]   |
Dec 03 12:41:47.044 INFO [stderr] 4 | use std::hash::{Hash, Hasher};
Dec 03 12:41:47.044 INFO [stderr]   |                       ^^^^^^
Dec 03 12:41:47.044 INFO [stderr] 
Dec 03 12:41:47.044 INFO [stderr] warning: unused import: `Decodable`
Dec 03 12:41:47.044 INFO [stderr]  --> src/merkle/node.rs:3:39
Dec 03 12:41:47.044 INFO [stderr]   |
Dec 03 12:41:47.044 INFO [stderr] 3 | use rlp::{self, RlpStream, Encodable, Decodable, Rlp, Prototype};
Dec 03 12:41:47.044 INFO [stderr]   |                                       ^^^^^^^^^
Dec 03 12:41:47.044 INFO [stderr] 
Dec 03 12:41:47.044 INFO [stderr] warning: unused import: `Digest`
Dec 03 12:41:47.044 INFO [stderr]    --> src/merkle/node.rs:157:16
Dec 03 12:41:47.044 INFO [stderr]     |
Dec 03 12:41:47.044 INFO [stderr] 157 |     use sha3::{Digest, Keccak256};
Dec 03 12:41:47.044 INFO [stderr]     |                ^^^^^^
Dec 03 12:41:47.044 INFO [stderr] 
Dec 03 12:41:47.044 INFO [stderr] warning: unused import: `DatabaseGuard`
Dec 03 12:41:47.044 INFO [stderr]    --> src/lib.rs:723:17
Dec 03 12:41:47.044 INFO [stderr]     |
Dec 03 12:41:47.044 INFO [stderr] 723 |     use super::{DatabaseGuard, Trie};
Dec 03 12:41:47.044 INFO [stderr]     |                 ^^^^^^^^^^^^^
Dec 03 12:41:47.044 INFO [stderr] 
Dec 03 12:41:47.087 INFO [stderr] warning: unused variable: `value`
Dec 03 12:41:47.087 INFO [stderr]    --> src/lib.rs:283:74
Dec 03 12:41:47.087 INFO [stderr]     |
Dec 03 12:41:47.087 INFO [stderr] 283 |             let submap = Self::build_submap(1, map.iter().filter(|&(key, value)| {
Dec 03 12:41:47.087 INFO [stderr]     |                                                                          ^^^^^ help: consider using `_value` instead
Dec 03 12:41:47.087 INFO [stderr]     |
Dec 03 12:41:47.087 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 03 12:41:47.087 INFO [stderr] 
Dec 03 12:41:47.087 INFO [stderr] warning: unused variable: `value`
Dec 03 12:41:47.087 INFO [stderr]    --> src/lib.rs:296:29
Dec 03 12:41:47.087 INFO [stderr]     |
Dec 03 12:41:47.087 INFO [stderr] 296 |             .filter(|&(key, value)| key.len() == 0).next()
Dec 03 12:41:47.087 INFO [stderr]     |                             ^^^^^ help: consider using `_value` instead
Dec 03 12:41:47.087 INFO [stderr] 
Dec 03 12:41:47.087 INFO [stderr] warning: unused variable: `key`
Dec 03 12:41:47.087 INFO [stderr]    --> src/lib.rs:297:20
Dec 03 12:41:47.087 INFO [stderr]     |
Dec 03 12:41:47.087 INFO [stderr] 297 |             .map(|(key, value)| value.clone());
Dec 03 12:41:47.087 INFO [stderr]     |                    ^^^ help: consider using `_key` instead
Dec 03 12:41:47.087 INFO [stderr] 
Dec 03 12:41:47.088 INFO [stderr] warning: unused variable: `sub_nodes`
Dec 03 12:41:47.088 INFO [stderr]    --> src/lib.rs:632:44
Dec 03 12:41:47.088 INFO [stderr]     |
Dec 03 12:41:47.088 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Dec 03 12:41:47.088 INFO [stderr]     |                                            ^^^^^^^^^ help: consider using `_sub_nodes` instead
Dec 03 12:41:47.088 INFO [stderr] 
Dec 03 12:41:47.088 INFO [stderr] warning: unused variable: `sub_additional`
Dec 03 12:41:47.088 INFO [stderr]    --> src/lib.rs:632:55
Dec 03 12:41:47.088 INFO [stderr]     |
Dec 03 12:41:47.088 INFO [stderr] 632 |                         MerkleNode::Branch(sub_nodes, sub_additional) => {
Dec 03 12:41:47.088 INFO [stderr]     |                                                       ^^^^^^^^^^^^^^ help: consider using `_sub_additional` instead
Dec 03 12:41:47.088 INFO [stderr] 
Dec 03 12:41:47.179 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.179 INFO [stderr]    --> src/lib.rs:740:13
Dec 03 12:41:47.179 INFO [stderr]     |
Dec 03 12:41:47.179 INFO [stderr] 740 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.179 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.179 INFO [stderr]     |             |
Dec 03 12:41:47.179 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.179 INFO [stderr]     |
Dec 03 12:41:47.179 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 03 12:41:47.179 INFO [stderr] 
Dec 03 12:41:47.187 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.187 INFO [stderr]    --> src/lib.rs:756:13
Dec 03 12:41:47.187 INFO [stderr]     |
Dec 03 12:41:47.187 INFO [stderr] 756 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.187 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.187 INFO [stderr]     |             |
Dec 03 12:41:47.187 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.187 INFO [stderr] 
Dec 03 12:41:47.187 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.187 INFO [stderr]    --> src/lib.rs:776:13
Dec 03 12:41:47.187 INFO [stderr]     |
Dec 03 12:41:47.187 INFO [stderr] 776 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.187 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.187 INFO [stderr]     |             |
Dec 03 12:41:47.187 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.187 INFO [stderr] 
Dec 03 12:41:47.191 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.191 INFO [stderr]    --> src/lib.rs:801:13
Dec 03 12:41:47.191 INFO [stderr]     |
Dec 03 12:41:47.191 INFO [stderr] 801 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.191 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.191 INFO [stderr]     |             |
Dec 03 12:41:47.191 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.191 INFO [stderr] 
Dec 03 12:41:47.191 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.191 INFO [stderr]    --> src/lib.rs:812:13
Dec 03 12:41:47.191 INFO [stderr]     |
Dec 03 12:41:47.191 INFO [stderr] 812 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.191 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.191 INFO [stderr]     |             |
Dec 03 12:41:47.191 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.191 INFO [stderr] 
Dec 03 12:41:47.195 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.195 INFO [stderr]    --> src/lib.rs:825:13
Dec 03 12:41:47.195 INFO [stderr]     |
Dec 03 12:41:47.195 INFO [stderr] 825 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.195 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.195 INFO [stderr]     |             |
Dec 03 12:41:47.195 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.195 INFO [stderr] 
Dec 03 12:41:47.195 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.195 INFO [stderr]    --> src/lib.rs:841:13
Dec 03 12:41:47.195 INFO [stderr]     |
Dec 03 12:41:47.195 INFO [stderr] 841 |         let mut map = HashMap::new();
Dec 03 12:41:47.195 INFO [stderr]     |             ----^^^
Dec 03 12:41:47.195 INFO [stderr]     |             |
Dec 03 12:41:47.195 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.195 INFO [stderr] 
Dec 03 12:41:47.195 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.195 INFO [stderr]    --> src/lib.rs:843:13
Dec 03 12:41:47.195 INFO [stderr]     |
Dec 03 12:41:47.195 INFO [stderr] 843 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.195 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.195 INFO [stderr]     |             |
Dec 03 12:41:47.195 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.195 INFO [stderr] 
Dec 03 12:41:47.199 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.199 INFO [stderr]    --> src/lib.rs:854:13
Dec 03 12:41:47.199 INFO [stderr]     |
Dec 03 12:41:47.199 INFO [stderr] 854 |         let mut map = HashMap::new();
Dec 03 12:41:47.199 INFO [stderr]     |             ----^^^
Dec 03 12:41:47.199 INFO [stderr]     |             |
Dec 03 12:41:47.199 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.199 INFO [stderr] 
Dec 03 12:41:47.199 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.199 INFO [stderr]    --> src/lib.rs:856:13
Dec 03 12:41:47.199 INFO [stderr]     |
Dec 03 12:41:47.199 INFO [stderr] 856 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.199 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.199 INFO [stderr]     |             |
Dec 03 12:41:47.199 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.199 INFO [stderr] 
Dec 03 12:41:47.199 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.199 INFO [stderr]    --> src/lib.rs:869:13
Dec 03 12:41:47.199 INFO [stderr]     |
Dec 03 12:41:47.199 INFO [stderr] 869 |         let mut map = HashMap::new();
Dec 03 12:41:47.199 INFO [stderr]     |             ----^^^
Dec 03 12:41:47.199 INFO [stderr]     |             |
Dec 03 12:41:47.199 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.199 INFO [stderr] 
Dec 03 12:41:47.199 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.199 INFO [stderr]    --> src/lib.rs:871:13
Dec 03 12:41:47.199 INFO [stderr]     |
Dec 03 12:41:47.199 INFO [stderr] 871 |         let mut database: HashMap<H256, Vec<u8>> = HashMap::new();
Dec 03 12:41:47.199 INFO [stderr]     |             ----^^^^^^^^
Dec 03 12:41:47.199 INFO [stderr]     |             |
Dec 03 12:41:47.199 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.199 INFO [stderr] 
Dec 03 12:41:47.199 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:41:47.199 INFO [stderr]    --> src/lib.rs:872:13
Dec 03 12:41:47.199 INFO [stderr]     |
Dec 03 12:41:47.199 INFO [stderr] 872 |         let mut trie: Trie<HashMap<H256, Vec<u8>>> = Trie::build(database, &map);
Dec 03 12:41:47.199 INFO [stderr]     |             ----^^^^
Dec 03 12:41:47.199 INFO [stderr]     |             |
Dec 03 12:41:47.199 INFO [stderr]     |             help: remove this `mut`
Dec 03 12:41:47.199 INFO [stderr] 
Dec 03 12:41:47.265 INFO [stderr] warning: method is never used: `free`
Dec 03 12:41:47.265 INFO [stderr]   --> src/database/mod.rs:96:5
Dec 03 12:41:47.265 INFO [stderr]    |
Dec 03 12:41:47.265 INFO [stderr] 96 |     pub fn free<'b>(&'b mut self, hash: H256) {
Dec 03 12:41:47.265 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 12:41:47.265 INFO [stderr]    |
Dec 03 12:41:47.265 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 03 12:41:47.265 INFO [stderr] 
Dec 03 12:41:47.266 INFO [stderr] warning: field is never used: `freed`
Dec 03 12:41:47.266 INFO [stderr]    --> src/database/mod.rs:123:5
Dec 03 12:41:47.266 INFO [stderr]     |
Dec 03 12:41:47.266 INFO [stderr] 123 |     freed: Vec<H256>,
Dec 03 12:41:47.266 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 03 12:41:47.266 INFO [stderr] 
Dec 03 12:41:49.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.26s
Dec 03 12:41:49.943 INFO [stderr] su: No module specific data is present
Dec 03 12:41:51.216 INFO running `"docker" "inspect" "31e129a1852488978c7409d112da10ce7a675c0dfdfe49de8db99d03b69c86ee"`
Dec 03 12:41:51.465 INFO running `"docker" "rm" "-f" "31e129a1852488978c7409d112da10ce7a675c0dfdfe49de8db99d03b69c86ee"`
Dec 03 12:41:51.839 INFO [stdout] 31e129a1852488978c7409d112da10ce7a675c0dfdfe49de8db99d03b69c86ee
Dec 03 12:41:51.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 12:41:52.204 INFO [stdout] fc55d7f3fbd50d348a45e5f4a6daca86792bad66bbb78567e1712d9d599e07cb
Dec 03 12:41:52.206 INFO running `"docker" "start" "-a" "fc55d7f3fbd50d348a45e5f4a6daca86792bad66bbb78567e1712d9d599e07cb"`
Dec 03 12:41:54.118 INFO [stderr] usermod: no changes
Dec 03 12:41:54.235 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
Dec 03 12:41:54.249 INFO [stderr]      Running /target/debug/deps/trie_test-ff1beeedc2d0325c
Dec 03 12:41:54.255 INFO [stdout] 
Dec 03 12:41:54.255 INFO [stdout] running 12 tests
Dec 03 12:41:54.255 INFO [stdout] test merkle::nibble::tests::from_into_key ... ok
Dec 03 12:41:54.264 INFO [stdout] test merkle::node::tests::decode_genesis_state ... ok
Dec 03 12:41:54.265 INFO [stdout] test tests::insert_single_item ... ok
Dec 03 12:41:54.265 INFO [stdout] test tests::testy ... ok
Dec 03 12:41:54.268 INFO [stdout] test merkle::node::tests::encode_decode ... ok
Dec 03 12:41:54.270 INFO [stdout] test tests::insert_animals ... ok
Dec 03 12:41:54.270 INFO [stdout] test tests::sub_genesis ... ok
Dec 03 12:41:54.283 INFO [stdout] test tests::trie_insert ... ok
Dec 03 12:41:54.299 INFO [stderr]    Doc-tests trie_test
Dec 03 12:41:54.299 INFO [stdout] test tests::insert_middle_leaf ... ok
Dec 03 12:41:54.299 INFO [stdout] test tests::trie_delete ... ok
Dec 03 12:41:54.299 INFO [stdout] test tests::trie_empty ... ok
Dec 03 12:41:54.299 INFO [stdout] test tests::trie_middle_leaf ... ok
Dec 03 12:41:54.299 INFO [stdout] 
Dec 03 12:41:54.299 INFO [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 03 12:41:54.299 INFO [stdout] 
Dec 03 12:41:57.441 INFO [stdout] 
Dec 03 12:41:57.441 INFO [stdout] running 0 tests
Dec 03 12:41:57.441 INFO [stdout] 
Dec 03 12:41:57.441 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 03 12:41:57.441 INFO [stdout] 
Dec 03 12:41:57.451 INFO [stderr] su: No module specific data is present
Dec 03 12:41:58.705 INFO running `"docker" "inspect" "fc55d7f3fbd50d348a45e5f4a6daca86792bad66bbb78567e1712d9d599e07cb"`
Dec 03 12:41:59.075 INFO running `"docker" "rm" "-f" "fc55d7f3fbd50d348a45e5f4a6daca86792bad66bbb78567e1712d9d599e07cb"`
Dec 03 12:41:59.387 INFO [stdout] fc55d7f3fbd50d348a45e5f4a6daca86792bad66bbb78567e1712d9d599e07cb
