[INFO] fetching crate arkworks-gadgets 0.3.13...
[INFO] checking arkworks-gadgets-0.3.13 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate arkworks-gadgets 0.3.13 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate arkworks-gadgets 0.3.13 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate arkworks-gadgets 0.3.13
[INFO] finished tweaking crates.io crate arkworks-gadgets 0.3.13
[INFO] tweaked toml for crates.io crate arkworks-gadgets 0.3.13 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-std v0.3.0
[INFO] [stderr]   Downloaded ark-bls12-381 v0.3.0
[INFO] [stderr]   Downloaded ark-nonnative-field v0.3.0
[INFO] [stderr]   Downloaded ark-crypto-primitives v0.3.0
[INFO] [stderr]   Downloaded ark-ff-macros v0.3.0
[INFO] [stderr]   Downloaded ark-r1cs-std v0.3.1
[INFO] [stderr]   Downloaded ark-poly v0.3.0
[INFO] [stderr]   Downloaded ark-ed-on-bn254 v0.3.0
[INFO] [stderr]   Downloaded ark-bn254 v0.3.0
[INFO] [stderr]   Downloaded ark-marlin v0.3.0
[INFO] [stderr]   Downloaded ark-poly-commit v0.3.0
[INFO] [stderr]   Downloaded ark-serialize-derive v0.3.0
[INFO] [stderr]   Downloaded ark-ec v0.3.0
[INFO] [stderr]   Downloaded ark-ff-asm v0.3.0
[INFO] [stderr]   Downloaded ark-ff v0.3.0
[INFO] [stderr]   Downloaded ark-serialize v0.3.0
[INFO] [stderr]   Downloaded ark-relations v0.3.0
[INFO] [stderr]   Downloaded ark-snark v0.3.0
[INFO] [stderr]   Downloaded ark-ed-on-bls12-381 v0.3.0
[INFO] [stderr]   Downloaded ark-groth16 v0.3.0
[INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a59b68216b84423ee78a1cf828da63e322a31340153ee2553d201ebcde2326e7
[INFO] running `Command { std: "docker" "start" "-a" "a59b68216b84423ee78a1cf828da63e322a31340153ee2553d201ebcde2326e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a59b68216b84423ee78a1cf828da63e322a31340153ee2553d201ebcde2326e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a59b68216b84423ee78a1cf828da63e322a31340153ee2553d201ebcde2326e7", kill_on_drop: false }`
[INFO] [stdout] a59b68216b84423ee78a1cf828da63e322a31340153ee2553d201ebcde2326e7
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08895237f4a41b56d0ab87f576b4701554a018f5483162cda6a30a636f699bce
[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" "08895237f4a41b56d0ab87f576b4701554a018f5483162cda6a30a636f699bce", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling ark-serialize-derive v0.3.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-asm v0.3.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]     Checking zeroize v1.4.2
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking ark-std v0.3.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking ark-serialize v0.3.0
[INFO] [stderr]     Checking num-bigint v0.4.2
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling ark-ff v0.3.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]     Checking ark-ec v0.3.0
[INFO] [stderr]     Checking ark-relations v0.3.0
[INFO] [stderr]     Checking ark-poly v0.3.0
[INFO] [stderr]     Checking ark-snark v0.3.0
[INFO] [stderr]     Checking ark-r1cs-std v0.3.1
[INFO] [stderr]     Checking ark-bn254 v0.3.0
[INFO] [stderr]     Checking ark-bls12-381 v0.3.0
[INFO] [stderr]     Checking ark-poly-commit v0.3.0
[INFO] [stderr]     Checking ark-marlin v0.3.0
[INFO] [stderr]     Checking ark-nonnative-field v0.3.0
[INFO] [stderr]     Checking ark-ed-on-bn254 v0.3.0
[INFO] [stderr]     Checking ark-ed-on-bls12-381 v0.3.0
[INFO] [stderr]     Checking ark-crypto-primitives v0.3.0
[INFO] [stderr]     Checking ark-groth16 v0.3.0
[INFO] [stderr]     Checking arkworks-gadgets v0.3.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `field_new`
[INFO] [stdout]    --> src/mimc/constraints.rs:200:15
[INFO] [stdout]     |
[INFO] [stdout] 200 |     use ark_ff::{field_new, to_bytes, Zero};
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `self.tree` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/merkle_tree/mod.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 let right = self.tree.get(&right_index).unwrap_or(&empty_hash);
[INFO] [stdout]     |                             --------- immutable borrow occurs here
[INFO] [stdout] 150 | 
[INFO] [stdout] 151 |                 self.tree.insert(
[INFO] [stdout]     |                 ^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 152 |                     i,
[INFO] [stdout] 153 |                     hash_inner_node::<P>(self.inner_params.borrow(), &left, &right)?,
[INFO] [stdout]     |                                                                             ------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/circuit/poseidon.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(a: F, b: F, c: H::Output, params: H::Parameters) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `self.tree` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/merkle_tree/mod.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 let right = self.tree.get(&right_index).unwrap_or(&empty_hash);
[INFO] [stdout]     |                             --------- immutable borrow occurs here
[INFO] [stdout] 150 | 
[INFO] [stdout] 151 |                 self.tree.insert(
[INFO] [stdout]     |                 ^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 152 |                     i,
[INFO] [stdout] 153 |                     hash_inner_node::<P>(self.inner_params.borrow(), &left, &right)?,
[INFO] [stdout]     |                                                                             ------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "08895237f4a41b56d0ab87f576b4701554a018f5483162cda6a30a636f699bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08895237f4a41b56d0ab87f576b4701554a018f5483162cda6a30a636f699bce", kill_on_drop: false }`
[INFO] [stdout] 08895237f4a41b56d0ab87f576b4701554a018f5483162cda6a30a636f699bce
