[INFO] fetching crate vrf-mod 0.1.2...
[INFO] linting vrf-mod-0.1.2 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate vrf-mod 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate vrf-mod 0.1.2
[INFO] finished tweaking crates.io crate vrf-mod 0.1.2
[INFO] tweaked toml for crates.io crate vrf-mod 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vrf-mod 0.1.2 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vrf-mod 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.34
[INFO] [stderr]   Downloaded once_cell v1.13.1
[INFO] [stderr]   Downloaded hmac-sha256 v1.1.4
[INFO] [stderr]   Downloaded thiserror v1.0.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 734b3479adb08366dda22e88b218b8edb4eafc88ffeae628be852b30f2e238a6
[INFO] running `Command { std: "docker" "start" "-a" "734b3479adb08366dda22e88b218b8edb4eafc88ffeae628be852b30f2e238a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "734b3479adb08366dda22e88b218b8edb4eafc88ffeae628be852b30f2e238a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734b3479adb08366dda22e88b218b8edb4eafc88ffeae628be852b30f2e238a6", kill_on_drop: false }`
[INFO] [stdout] 734b3479adb08366dda22e88b218b8edb4eafc88ffeae628be852b30f2e238a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93ca5c62cb38d6d62e29932fbd0ff5298a7c383fa8b43564977d2641bfe6c3b4
[INFO] running `Command { std: "docker" "start" "-a" "93ca5c62cb38d6d62e29932fbd0ff5298a7c383fa8b43564977d2641bfe6c3b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling openssl v0.10.41
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]     Checking hmac-sha256 v1.1.4
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.75
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]     Checking thiserror v1.0.34
[INFO] [stderr]     Checking vrf-mod v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: accessing first element with `error.errors().get(0)`
[INFO] [stdout]    --> src/vrf/mod.rs:102:15
[INFO] [stdout]     |
[INFO] [stdout] 102 |         match error.errors().get(0).map(openssl::error::Error::code) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ help: try: `error.errors().first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |         signature.mod_exp(&message, d, n, &mut self.bn_ctx)?;
[INFO] [stdout]     |                           ^^^^^^^^ help: change this to: `message`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |         message.mod_exp(&signature, e, n, &mut self.bn_ctx)?;
[INFO] [stdout]     |                         ^^^^^^^^^^ help: change this to: `signature`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taken reference of right operand
[INFO] [stdout]    --> src/vrf/mod.rs:236:26
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        help: use the right value directly: `self.hlen`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stdout]     = note: `#[warn(clippy::op_ref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manually reimplementing `div_ceil`
[INFO] [stdout]    --> src/vrf/mod.rs:236:26
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.div_ceil()`: `mask_len.div_ceil(*&self.hlen)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_div_ceil
[INFO] [stdout]     = note: `#[warn(clippy::manual_div_ceil)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taken reference of right operand
[INFO] [stdout]    --> src/vrf/mod.rs:236:27
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                           ^^^^^^^^^^^----------
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: use the right value directly: `self.hlen`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:244:32
[INFO] [stdout]     |
[INFO] [stdout] 244 |             self.hasher.update(&mgf_seed).unwrap();
[INFO] [stdout]     |                                ^^^^^^^^^ help: change this to: `mgf_seed`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/vrf/mod.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 279 |         if !(*k < 4_294_967_296usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(*k >= 4_294_967_296usize)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:298:23
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let m = os2ip(&em.as_slice()).unwrap();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ help: change this to: `em.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/vrf/mod.rs:373:13
[INFO] [stdout]     |
[INFO] [stdout] 373 |             return Err(Error::InvalidProof);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 373 -             return Err(Error::InvalidProof);
[INFO] [stdout] 373 +             Err(Error::InvalidProof)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/ecvrf/primitives.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let zeroes = if length % 8 > 0 {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: replace with: `!length.is_multiple_of(8)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/ecvrf/primitives.rs:92:6
[INFO] [stdout]    |
[INFO] [stdout] 92 |     [&zeroes.as_slice(), data].concat()
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^ help: change this to: `zeroes.as_slice()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `error.errors().get(0)`
[INFO] [stdout]   --> src/ecvrf/mod.rs:78:15
[INFO] [stdout]    |
[INFO] [stdout] 78 |         match error.errors().get(0).map(openssl::error::Error::code) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^ help: try: `error.errors().first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `ok`
[INFO] [stdout]    --> src/ecvrf/mod.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 | /             match h {
[INFO] [stdout] 187 | |                 Ok(hash_point) => Some(hash_point),
[INFO] [stdout] 188 | |                 _ => None,
[INFO] [stdout] 189 | |             }
[INFO] [stdout]     | |_____________^ help: replace with: `h.ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
[INFO] [stdout]     = note: `#[warn(clippy::manual_ok_err)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                     &padded_secret_key.as_slice(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `padded_secret_key.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |                     &padded_data.as_slice(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `padded_data.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:267:17
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 &k,
[INFO] [stdout]     |                 ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:269:31
[INFO] [stdout]     |
[INFO] [stdout] 269 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:274:27
[INFO] [stdout]     |
[INFO] [stdout] 274 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:274:31
[INFO] [stdout]     |
[INFO] [stdout] 274 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 &k,
[INFO] [stdout]     |                 ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:290:27
[INFO] [stdout]     |
[INFO] [stdout] 290 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:290:31
[INFO] [stdout]     |
[INFO] [stdout] 290 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:322:28
[INFO] [stdout]     |
[INFO] [stdout] 322 |         self.hasher.update(&concatenate_points?.as_slice()).unwrap();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `concatenate_points?.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]    --> src/ecvrf/mod.rs:392:25
[INFO] [stdout]     |
[INFO] [stdout] 392 |         let pt_len = if self.qlen % 8 > 0 {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: replace with: `!self.qlen.is_multiple_of(8)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]    --> src/ecvrf/mod.rs:397:24
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let c_len = if self.n % 8 > 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^ help: replace with: `!self.n.is_multiple_of(8)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:479:26
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let pi_string = [&gamma_string.as_slice(), c_string.as_slice(), s_string.as_slice()].concat();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `gamma_string.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/ecvrf/mod.rs:622:13
[INFO] [stdout]     |
[INFO] [stdout] 622 |             return Err(Error::InvalidProof);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 622 -             return Err(Error::InvalidProof);
[INFO] [stdout] 622 +             Err(Error::InvalidProof)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `error.errors().get(0)`
[INFO] [stdout]    --> src/vrf/mod.rs:102:15
[INFO] [stdout]     |
[INFO] [stdout] 102 |         match error.errors().get(0).map(openssl::error::Error::code) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ help: try: `error.errors().first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |         signature.mod_exp(&message, d, n, &mut self.bn_ctx)?;
[INFO] [stdout]     |                           ^^^^^^^^ help: change this to: `message`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |         message.mod_exp(&signature, e, n, &mut self.bn_ctx)?;
[INFO] [stdout]     |                         ^^^^^^^^^^ help: change this to: `signature`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taken reference of right operand
[INFO] [stdout]    --> src/vrf/mod.rs:236:26
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        help: use the right value directly: `self.hlen`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stdout]     = note: `#[warn(clippy::op_ref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manually reimplementing `div_ceil`
[INFO] [stdout]    --> src/vrf/mod.rs:236:26
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.div_ceil()`: `mask_len.div_ceil(*&self.hlen)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_div_ceil
[INFO] [stdout]     = note: `#[warn(clippy::manual_div_ceil)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taken reference of right operand
[INFO] [stdout]    --> src/vrf/mod.rs:236:27
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let iterations = (mask_len + &self.hlen - 1) / &self.hlen ;
[INFO] [stdout]     |                           ^^^^^^^^^^^----------
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: use the right value directly: `self.hlen`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:244:32
[INFO] [stdout]     |
[INFO] [stdout] 244 |             self.hasher.update(&mgf_seed).unwrap();
[INFO] [stdout]     |                                ^^^^^^^^^ help: change this to: `mgf_seed`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/vrf/mod.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 279 |         if !(*k < 4_294_967_296usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(*k >= 4_294_967_296usize)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/vrf/mod.rs:298:23
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let m = os2ip(&em.as_slice()).unwrap();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ help: change this to: `em.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/vrf/mod.rs:373:13
[INFO] [stdout]     |
[INFO] [stdout] 373 |             return Err(Error::InvalidProof);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 373 -             return Err(Error::InvalidProof);
[INFO] [stdout] 373 +             Err(Error::InvalidProof)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/ecvrf/primitives.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let zeroes = if length % 8 > 0 {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: replace with: `!length.is_multiple_of(8)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/ecvrf/primitives.rs:92:6
[INFO] [stdout]    |
[INFO] [stdout] 92 |     [&zeroes.as_slice(), data].concat()
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^ help: change this to: `zeroes.as_slice()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/primitives.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let order = BigNum::from_slice(&order_.as_slice()).unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^ help: change this to: `order_.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/primitives.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             &data.as_slice(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: change this to: `data.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `error.errors().get(0)`
[INFO] [stdout]   --> src/ecvrf/mod.rs:78:15
[INFO] [stdout]    |
[INFO] [stdout] 78 |         match error.errors().get(0).map(openssl::error::Error::code) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^ help: try: `error.errors().first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `ok`
[INFO] [stdout]    --> src/ecvrf/mod.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 | /             match h {
[INFO] [stdout] 187 | |                 Ok(hash_point) => Some(hash_point),
[INFO] [stdout] 188 | |                 _ => None,
[INFO] [stdout] 189 | |             }
[INFO] [stdout]     | |_____________^ help: replace with: `h.ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
[INFO] [stdout]     = note: `#[warn(clippy::manual_ok_err)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                     &padded_secret_key.as_slice(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `padded_secret_key.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |                     &padded_data.as_slice(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `padded_data.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:267:17
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 &k,
[INFO] [stdout]     |                 ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:269:31
[INFO] [stdout]     |
[INFO] [stdout] 269 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:274:27
[INFO] [stdout]     |
[INFO] [stdout] 274 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:274:31
[INFO] [stdout]     |
[INFO] [stdout] 274 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 &k,
[INFO] [stdout]     |                 ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:290:27
[INFO] [stdout]     |
[INFO] [stdout] 290 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                           ^^ help: change this to: `v`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrowed expression implements the required traits
[INFO] [stdout]    --> src/ecvrf/mod.rs:290:31
[INFO] [stdout]     |
[INFO] [stdout] 290 |             v = HMAC::mac(&v, &k);
[INFO] [stdout]     |                               ^^ help: change this to: `k`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:322:28
[INFO] [stdout]     |
[INFO] [stdout] 322 |         self.hasher.update(&concatenate_points?.as_slice()).unwrap();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `concatenate_points?.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]    --> src/ecvrf/mod.rs:392:25
[INFO] [stdout]     |
[INFO] [stdout] 392 |         let pt_len = if self.qlen % 8 > 0 {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: replace with: `!self.qlen.is_multiple_of(8)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]    --> src/ecvrf/mod.rs:397:24
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let c_len = if self.n % 8 > 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^ help: replace with: `!self.n.is_multiple_of(8)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/ecvrf/mod.rs:479:26
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let pi_string = [&gamma_string.as_slice(), c_string.as_slice(), s_string.as_slice()].concat();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `gamma_string.as_slice()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/ecvrf/mod.rs:622:13
[INFO] [stdout]     |
[INFO] [stdout] 622 |             return Err(Error::InvalidProof);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 622 -             return Err(Error::InvalidProof);
[INFO] [stdout] 622 +             Err(Error::InvalidProof)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.41
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "93ca5c62cb38d6d62e29932fbd0ff5298a7c383fa8b43564977d2641bfe6c3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ca5c62cb38d6d62e29932fbd0ff5298a7c383fa8b43564977d2641bfe6c3b4", kill_on_drop: false }`
[INFO] [stdout] 93ca5c62cb38d6d62e29932fbd0ff5298a7c383fa8b43564977d2641bfe6c3b4