[INFO] crate merkle_trees 0.1.0 is already in cache
[INFO] checking merkle_trees-0.1.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate merkle_trees 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate merkle_trees 0.1.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate merkle_trees 0.1.0
[INFO] finished tweaking crates.io crate merkle_trees 0.1.0
[INFO] tweaked toml for crates.io crate merkle_trees 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 66130626ae5c81cfa60652288021424441e8ebcfd34057fce5260c425a723b5f
[INFO] running `"docker" "start" "-a" "66130626ae5c81cfa60652288021424441e8ebcfd34057fce5260c425a723b5f"`
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking sled v0.29.2
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]     Checking paste v0.1.10
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking merkle_trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking mimc-rs v0.0.2
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/compact_merkle_tree.rs:284:28
[INFO] [stderr]     |
[INFO] [stderr] 284 |                     idx += (p - 1);
[INFO] [stderr]     |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/compact_merkle_tree.rs:834:29
[INFO] [stderr]     |
[INFO] [stderr] 834 |         let last_leaf_idx = (size - 1);
[INFO] [stderr]     |                             ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/db.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hasher::Arity2Hasher`
[INFO] [stderr]  --> src/merkle_patricia_trie.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::hasher::Arity2Hasher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::types::LeafIndex`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::types::LeafIndex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `arrayvec::ArrayVec`
[INFO] [stderr]  --> src/types.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use arrayvec::ArrayVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::identities::Zero`
[INFO] [stderr]  --> src/types.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use num_traits::identities::Zero;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_leaf`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn is_leaf(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_extension`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn is_extension(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset_root`
[INFO] [stderr]     --> src/merkle_patricia_trie.rs:1373:5
[INFO] [stderr]      |
[INFO] [stderr] 1373 |     fn reset_root(&mut self) {
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling unqlite v1.4.3
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/compact_merkle_tree.rs:284:28
[INFO] [stderr]     |
[INFO] [stderr] 284 |                     idx += (p - 1);
[INFO] [stderr]     |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/compact_merkle_tree.rs:834:29
[INFO] [stderr]     |
[INFO] [stderr] 834 |         let last_leaf_idx = (size - 1);
[INFO] [stderr]     |                             ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/db.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BigInt`
[INFO] [stderr]   --> src/hasher.rs:85:22
[INFO] [stderr]    |
[INFO] [stderr] 85 |     use num_bigint::{BigInt, BigUint, ToBigInt};
[INFO] [stderr]    |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hasher::Arity2Hasher`
[INFO] [stderr]  --> src/merkle_patricia_trie.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::hasher::Arity2Hasher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::types::LeafIndex`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::types::LeafIndex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::sha2::Sha256`
[INFO] [stderr]    --> src/sparse_merkle_tree.rs:395:9
[INFO] [stderr]     |
[INFO] [stderr] 395 |     use crate::sha2::Sha256;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `arrayvec::ArrayVec`
[INFO] [stderr]  --> src/types.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use arrayvec::ArrayVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::identities::Zero`
[INFO] [stderr]  --> src/types.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use num_traits::identities::Zero;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/vanilla_sparse_merkle_tree.rs:344:34
[INFO] [stderr]     |
[INFO] [stderr] 344 |     use self::rand::{thread_rng, Rng};
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::Pow`
[INFO] [stderr]    --> src/sparse_merkle_tree.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |     use num_traits::Pow;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]     --> src/compact_merkle_tree.rs:1063:13
[INFO] [stderr]      |
[INFO] [stderr] 1063 |         let tree = CompactMerkleTree::new(hasher.clone());
[INFO] [stderr]      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h_l_6`
[INFO] [stderr]     --> src/compact_merkle_tree.rs:1125:13
[INFO] [stderr]      |
[INFO] [stderr] 1125 |         let h_l_6 = hasher.hash_leaf(l_6).unwrap();
[INFO] [stderr]      |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_h_l_6`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path_4`
[INFO] [stderr]     --> src/compact_merkle_tree.rs:1220:13
[INFO] [stderr]      |
[INFO] [stderr] 1220 |         let path_4 = tree.append(l_4, &mut db).unwrap();
[INFO] [stderr]      |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path_5`
[INFO] [stderr]     --> src/compact_merkle_tree.rs:1231:13
[INFO] [stderr]      |
[INFO] [stderr] 1231 |         let path_5 = tree.append(l_5, &mut db).unwrap();
[INFO] [stderr]      |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_5`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/merkle_patricia_trie.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset_root`
[INFO] [stderr]     --> src/merkle_patricia_trie.rs:1373:5
[INFO] [stderr]      |
[INFO] [stderr] 1373 |     fn reset_root(&mut self) {
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.44s
[INFO] running `"docker" "inspect" "66130626ae5c81cfa60652288021424441e8ebcfd34057fce5260c425a723b5f"`
[INFO] running `"docker" "rm" "-f" "66130626ae5c81cfa60652288021424441e8ebcfd34057fce5260c425a723b5f"`
[INFO] [stdout] 66130626ae5c81cfa60652288021424441e8ebcfd34057fce5260c425a723b5f
