[INFO] fetching crate libzeropool-rs 0.9.1... [INFO] building libzeropool-rs-0.9.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] extracting crate libzeropool-rs 0.9.1 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate libzeropool-rs 0.9.1 [INFO] finished tweaking crates.io crate libzeropool-rs 0.9.1 [INFO] tweaked toml for crates.io crate libzeropool-rs 0.9.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate libzeropool-rs 0.9.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 258 packages to latest compatible versions [INFO] [stderr] Adding base64 v0.20.0 (available: v0.22.1) [INFO] [stderr] Adding borsh v0.9.3 (available: v1.5.7) [INFO] [stderr] Adding bs58 v0.4.0 (available: v0.5.1) [INFO] [stderr] Adding criterion v0.3.6 (available: v0.7.0) [INFO] [stderr] Adding getrandom v0.2.16 (available: v0.3.3) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [INFO] [stderr] Adding subtle v2.4.1 (available: v2.6.1) [INFO] [stderr] Adding test-case v1.2.3 (available: v3.3.1) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.17) [INFO] [stderr] Adding zeroize v1.3.0 (available: v1.8.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded zp-kvdb-web v0.12.0 [INFO] [stderr] Downloaded parity-util-mem v0.12.0 [INFO] [stderr] Downloaded test-case v1.2.3 [INFO] [stderr] Downloaded parity-util-mem-derive v0.1.0 [INFO] [stderr] Downloaded kvdb v0.13.0 [INFO] [stderr] Downloaded kvdb-memorydb v0.13.0 [INFO] [stderr] Downloaded lru v0.8.1 [INFO] [stderr] Downloaded fawkes-crypto v4.4.0 [INFO] [stderr] Downloaded fawkes-crypto_derive v4.3.0 [INFO] [stderr] Downloaded ff-uint_derive v0.2.4 [INFO] [stderr] Downloaded ff-uint v0.2.4 [INFO] [stderr] Downloaded impl-trait-for-tuples v0.1.3 [INFO] [stderr] Downloaded blake2-rfc_bellman_edition v0.0.1 [INFO] [stderr] Downloaded poly1305 v0.7.2 [INFO] [stderr] Downloaded unsigned-varint v0.8.0 [INFO] [stderr] Downloaded seedbox v0.2.0 [INFO] [stderr] Downloaded zigzag v0.1.0 [INFO] [stderr] Downloaded chacha20 v0.7.3 [INFO] [stderr] Downloaded libzeropool v0.5.6 [INFO] [stderr] Downloaded fawkes-crypto-bellman_ce v0.3.5 [INFO] [stderr] Downloaded crossbeam v0.7.3 [INFO] [stderr] Downloaded base64 v0.20.0 [INFO] [stderr] Downloaded persy v1.7.1 [INFO] [stderr] Downloaded fawkes-crypto-pairing_ce v0.18.1 [INFO] [stderr] Downloaded num-bigint v0.3.3 [INFO] [stderr] Downloaded chacha20poly1305 v0.8.2 [INFO] [stderr] Downloaded crossbeam-channel v0.4.4 [INFO] [stderr] Downloaded concat-idents v1.1.5 [INFO] [stderr] Downloaded linked-list v0.0.3 [INFO] [stderr] Downloaded ff_derive_ce v0.5.1 [INFO] [stderr] Downloaded ff_ce v0.7.1 [INFO] [stderr] Downloaded kvdb-persy v0.1.1 [INFO] [stderr] Downloaded syn v0.14.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a76d163adf4bb24403a4351429e0240e66876977ad7de5f0ca5aa627fc47008 [INFO] running `Command { std: "docker" "start" "-a" "6a76d163adf4bb24403a4351429e0240e66876977ad7de5f0ca5aa627fc47008", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a76d163adf4bb24403a4351429e0240e66876977ad7de5f0ca5aa627fc47008", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a76d163adf4bb24403a4351429e0240e66876977ad7de5f0ca5aa627fc47008", kill_on_drop: false }` [INFO] [stdout] 6a76d163adf4bb24403a4351429e0240e66876977ad7de5f0ca5aa627fc47008 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f23090b0b34b9481b83e8c77bbf79cffab35222dc5b2197ed4a247f0f26008a [INFO] running `Command { std: "docker" "start" "-a" "2f23090b0b34b9481b83e8c77bbf79cffab35222dc5b2197ed4a247f0f26008a", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling ahash v0.7.8 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling opaque-debug v0.3.1 [INFO] [stderr] Compiling num-bigint v0.3.3 [INFO] [stderr] Compiling block-padding v0.2.1 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling hex v0.3.2 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling ref-cast v1.0.25 [INFO] [stderr] Compiling crunchy v0.2.4 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling subtle v2.4.1 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling sha3 v0.9.1 [INFO] [stderr] Compiling universal-hash v0.4.1 [INFO] [stderr] Compiling brotli-decompressor v2.5.1 [INFO] [stderr] Compiling cipher v0.3.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling rustc-hex v2.1.0 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling zeroize v1.3.0 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling poly1305 v0.7.2 [INFO] [stderr] Compiling aead v0.4.3 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling seedbox v0.2.0 [INFO] [stderr] Compiling chacha20 v0.7.3 [INFO] [stderr] Compiling blake2-rfc_bellman_edition v0.0.1 [INFO] [stderr] Compiling linked-list v0.0.3 [INFO] [stderr] Compiling kvdb v0.13.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling parking_lot v0.12.4 [INFO] [stderr] Compiling chacha20poly1305 v0.8.2 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Compiling sha3 v0.10.8 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling bs58 v0.4.0 [INFO] [stderr] Compiling base64 v0.20.0 [INFO] [stderr] Compiling kvdb-memorydb v0.13.0 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling brotli v3.5.0 [INFO] [stderr] Compiling ff_derive_ce v0.5.1 [INFO] [stderr] Compiling ff_ce v0.7.1 [INFO] [stderr] Compiling fawkes-crypto-pairing_ce v0.18.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling ref-cast-impl v1.0.25 [INFO] [stderr] Compiling concat-idents v1.1.5 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling borsh-derive-internal v0.9.3 [INFO] [stderr] Compiling borsh-schema-derive-internal v0.9.3 [INFO] [stderr] Compiling fawkes-crypto_derive v4.3.0 [INFO] [stderr] Compiling impl-trait-for-tuples v0.1.3 [INFO] [stderr] Compiling fawkes-crypto-bellman_ce v0.3.5 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling borsh-derive v0.9.3 [INFO] [stderr] Compiling ff-uint_derive v0.2.4 [INFO] [stderr] Compiling borsh v0.9.3 [INFO] [stderr] Compiling ff-uint v0.2.4 [INFO] [stderr] Compiling fawkes-crypto v4.4.0 [INFO] [stderr] Compiling libzeropool v0.5.6 [INFO] [stderr] Compiling libzeropool-rs v0.9.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sparse_array.rs:88:17 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.23s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "2f23090b0b34b9481b83e8c77bbf79cffab35222dc5b2197ed4a247f0f26008a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f23090b0b34b9481b83e8c77bbf79cffab35222dc5b2197ed4a247f0f26008a", kill_on_drop: false }` [INFO] [stdout] 2f23090b0b34b9481b83e8c77bbf79cffab35222dc5b2197ed4a247f0f26008a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc364eeb8c3f2439b8d377725b29ff548a8cbfc28e4fa07e577075cc1158fabe [INFO] running `Command { std: "docker" "start" "-a" "cc364eeb8c3f2439b8d377725b29ff548a8cbfc28e4fa07e577075cc1158fabe", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling csv-core v0.1.12 [INFO] [stderr] Compiling test-case v1.2.3 [INFO] [stderr] Compiling rayon-core v1.13.0 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling half v1.8.3 [INFO] [stderr] Compiling criterion-plot v0.4.5 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling oorandom v11.1.5 [INFO] [stderr] Compiling serde_cbor v0.11.2 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling csv v1.3.1 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling plotters v0.3.7 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-bigint v0.3.3 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling ff_derive_ce v0.5.1 [INFO] [stderr] Compiling ff-uint_derive v0.2.4 [INFO] [stderr] Compiling criterion v0.3.6 [INFO] [stderr] Compiling ff_ce v0.7.1 [INFO] [stderr] Compiling fawkes-crypto-pairing_ce v0.18.1 [INFO] [stderr] Compiling ff-uint v0.2.4 [INFO] [stderr] Compiling fawkes-crypto-bellman_ce v0.3.5 [INFO] [stderr] Compiling fawkes-crypto v4.4.0 [INFO] [stderr] Compiling libzeropool v0.5.6 [INFO] [stderr] Compiling libzeropool-rs v0.9.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicUsize` [INFO] [stdout] --> src/merkle.rs:1013:9 [INFO] [stdout] | [INFO] [stdout] 1013 | use std::sync::atomic::AtomicUsize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sparse_array.rs:88:17 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1087:13 [INFO] [stdout] | [INFO] [stdout] 1087 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1208:13 [INFO] [stdout] | [INFO] [stdout] 1208 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1223:13 [INFO] [stdout] | [INFO] [stdout] 1223 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1257:13 [INFO] [stdout] | [INFO] [stdout] 1257 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1291:13 [INFO] [stdout] | [INFO] [stdout] 1291 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1311:13 [INFO] [stdout] | [INFO] [stdout] 1311 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1332:13 [INFO] [stdout] | [INFO] [stdout] 1332 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1419:13 [INFO] [stdout] | [INFO] [stdout] 1419 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1439:13 [INFO] [stdout] | [INFO] [stdout] 1439 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1460:13 [INFO] [stdout] | [INFO] [stdout] 1460 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1488:13 [INFO] [stdout] | [INFO] [stdout] 1488 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1525:13 [INFO] [stdout] | [INFO] [stdout] 1525 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1572:13 [INFO] [stdout] | [INFO] [stdout] 1572 | let mut first_tree = &mut init().tree; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1573:13 [INFO] [stdout] | [INFO] [stdout] 1573 | let mut second_tree = &mut init().tree; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/merkle.rs:1657:13 [INFO] [stdout] | [INFO] [stdout] 1657 | let mut tree = &mut init().tree; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sparse_array.rs:88:17 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 88 | pub fn iter(&self) -> SparseArrayIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 26.85s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "cc364eeb8c3f2439b8d377725b29ff548a8cbfc28e4fa07e577075cc1158fabe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc364eeb8c3f2439b8d377725b29ff548a8cbfc28e4fa07e577075cc1158fabe", kill_on_drop: false }` [INFO] [stdout] cc364eeb8c3f2439b8d377725b29ff548a8cbfc28e4fa07e577075cc1158fabe