[INFO] fetching crate merkle_trees 0.1.0... [INFO] checking merkle_trees-0.1.0 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526 [INFO] extracting crate merkle_trees 0.1.0 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate merkle_trees 0.1.0 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a0f8adfc08031970536095b4ef356bebff0bc55df896da641054ed3cbce216a3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a0f8adfc08031970536095b4ef356bebff0bc55df896da641054ed3cbce216a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a0f8adfc08031970536095b4ef356bebff0bc55df896da641054ed3cbce216a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0f8adfc08031970536095b4ef356bebff0bc55df896da641054ed3cbce216a3", kill_on_drop: false }` [INFO] [stdout] a0f8adfc08031970536095b4ef356bebff0bc55df896da641054ed3cbce216a3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e919ed796f10e721748d2e70cd5103e4de529aa81955d035407f73e232d76077 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e919ed796f10e721748d2e70cd5103e4de529aa81955d035407f73e232d76077", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling gimli v0.22.0 [INFO] [stderr] Compiling adler v0.2.3 [INFO] [stderr] Compiling rustc-demangle v0.1.17 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling object v0.20.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bindgen v0.49.4 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.18 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking rustc-hex v2.1.0 [INFO] [stderr] Checking keccak v0.1.0 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling clang-sys v0.28.1 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking rlp v0.4.6 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking log v0.4.11 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Compiling env_logger v0.6.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking generic-array v0.13.2 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking crypto-mac v0.7.0 [INFO] [stderr] Compiling addr2line v0.13.0 [INFO] [stderr] Compiling cexpr v0.3.6 [INFO] [stderr] Checking sha2 v0.8.2 [INFO] [stderr] Checking sha3 v0.8.2 [INFO] [stderr] Checking blake2 v0.8.1 [INFO] [stderr] Checking paste v0.1.18 [INFO] [stderr] Checking backtrace v0.3.51 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking mimc-rs v0.0.2 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Checking serde v1.0.116 [INFO] [stderr] Compiling unqlite v1.4.3 [INFO] [stderr] Checking serde_json v1.0.58 [INFO] [stderr] Checking serde_bytes v0.11.5 [INFO] [stderr] Checking bincode v1.3.1 [INFO] [stderr] Checking sled v0.29.2 [INFO] [stderr] Checking merkle_trees v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/compact_merkle_tree.rs:284:28 [INFO] [stdout] | [INFO] [stdout] 284 | idx += (p - 1); [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/compact_merkle_tree.rs:834:29 [INFO] [stdout] | [INFO] [stdout] 834 | let last_leaf_idx = (size - 1); [INFO] [stdout] | ^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/db.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::hasher::Arity2Hasher` [INFO] [stdout] --> src/merkle_patricia_trie.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::hasher::Arity2Hasher; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::types::LeafIndex` [INFO] [stdout] --> src/merkle_patricia_trie.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use crate::types::LeafIndex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `arrayvec::ArrayVec` [INFO] [stdout] --> src/types.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use arrayvec::ArrayVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num_traits::identities::Zero` [INFO] [stdout] --> src/types.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use num_traits::identities::Zero; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/merkle_patricia_trie.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_leaf` [INFO] [stdout] --> src/merkle_patricia_trie.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | fn is_leaf(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_extension` [INFO] [stdout] --> src/merkle_patricia_trie.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | fn is_extension(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `reset_root` [INFO] [stdout] --> src/merkle_patricia_trie.rs:1373:8 [INFO] [stdout] | [INFO] [stdout] 1373 | fn reset_root(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/compact_merkle_tree.rs:284:28 [INFO] [stdout] | [INFO] [stdout] 284 | idx += (p - 1); [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/compact_merkle_tree.rs:834:29 [INFO] [stdout] | [INFO] [stdout] 834 | let last_leaf_idx = (size - 1); [INFO] [stdout] | ^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/db.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BigInt` [INFO] [stdout] --> src/hasher.rs:85:22 [INFO] [stdout] | [INFO] [stdout] 85 | use num_bigint::{BigInt, BigUint, ToBigInt}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::hasher::Arity2Hasher` [INFO] [stdout] --> src/merkle_patricia_trie.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::hasher::Arity2Hasher; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::types::LeafIndex` [INFO] [stdout] --> src/merkle_patricia_trie.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use crate::types::LeafIndex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::sha2::Sha256` [INFO] [stdout] --> src/sparse_merkle_tree.rs:395:9 [INFO] [stdout] | [INFO] [stdout] 395 | use crate::sha2::Sha256; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `arrayvec::ArrayVec` [INFO] [stdout] --> src/types.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use arrayvec::ArrayVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num_traits::identities::Zero` [INFO] [stdout] --> src/types.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use num_traits::identities::Zero; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/vanilla_sparse_merkle_tree.rs:344:34 [INFO] [stdout] | [INFO] [stdout] 344 | use self::rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num_traits::Pow` [INFO] [stdout] --> src/sparse_merkle_tree.rs:404:9 [INFO] [stdout] | [INFO] [stdout] 404 | use num_traits::Pow; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree` [INFO] [stdout] --> src/compact_merkle_tree.rs:1063:13 [INFO] [stdout] | [INFO] [stdout] 1063 | let tree = CompactMerkleTree::new(hasher.clone()); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h_l_6` [INFO] [stdout] --> src/compact_merkle_tree.rs:1125:13 [INFO] [stdout] | [INFO] [stdout] 1125 | let h_l_6 = hasher.hash_leaf(l_6).unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_h_l_6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `path_4` [INFO] [stdout] --> src/compact_merkle_tree.rs:1220:13 [INFO] [stdout] | [INFO] [stdout] 1220 | let path_4 = tree.append(l_4, &mut db).unwrap(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `path_5` [INFO] [stdout] --> src/compact_merkle_tree.rs:1231:13 [INFO] [stdout] | [INFO] [stdout] 1231 | let path_5 = tree.append(l_5, &mut db).unwrap(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/merkle_patricia_trie.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `reset_root` [INFO] [stdout] --> src/merkle_patricia_trie.rs:1373:8 [INFO] [stdout] | [INFO] [stdout] 1373 | fn reset_root(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 57s [INFO] running `Command { std: "docker" "inspect" "e919ed796f10e721748d2e70cd5103e4de529aa81955d035407f73e232d76077", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e919ed796f10e721748d2e70cd5103e4de529aa81955d035407f73e232d76077", kill_on_drop: false }` [INFO] [stdout] e919ed796f10e721748d2e70cd5103e4de529aa81955d035407f73e232d76077