[INFO] cloning repository https://github.com/turfT/bellman-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/turfT/bellman-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FturfT%2Fbellman-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FturfT%2Fbellman-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 947e5afb718c7685879c7cbcbb1dc8e03bb81fc1 [INFO] checking turfT/bellman-learn against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FturfT%2Fbellman-learn" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/turfT/bellman-learn [INFO] finished tweaking git repo https://github.com/turfT/bellman-learn [INFO] tweaked toml for git repo https://github.com/turfT/bellman-learn written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/turfT/bellman-learn on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/turfT/bellman-learn 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded group v0.8.0 [INFO] [stderr] Downloaded radium v0.4.1 [INFO] [stderr] Downloaded pairing v0.18.0 [INFO] [stderr] Downloaded ff v0.8.0 [INFO] [stderr] Downloaded bellman v0.8.1 [INFO] [stderr] Downloaded bitvec v0.18.4 [INFO] [stderr] Downloaded bls12_381 v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3bfd6d2197fb407db50e1135d4171d8e0b6038da0eb02d9b119764ce2b0cdf5 [INFO] running `Command { std: "docker" "start" "-a" "a3bfd6d2197fb407db50e1135d4171d8e0b6038da0eb02d9b119764ce2b0cdf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3bfd6d2197fb407db50e1135d4171d8e0b6038da0eb02d9b119764ce2b0cdf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3bfd6d2197fb407db50e1135d4171d8e0b6038da0eb02d9b119764ce2b0cdf5", kill_on_drop: false }` [INFO] [stdout] a3bfd6d2197fb407db50e1135d4171d8e0b6038da0eb02d9b119764ce2b0cdf5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 447ab290d8c86f013faf779fcb00dcc917bbb41478c666828820a0b08dcae134 [INFO] running `Command { std: "docker" "start" "-a" "447ab290d8c86f013faf779fcb00dcc917bbb41478c666828820a0b08dcae134", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling radium v0.4.1 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking funty v1.0.1 [INFO] [stderr] Checking wyz v0.2.0 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Checking subtle v2.4.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking futures v0.1.30 [INFO] [stderr] Checking arrayref v0.3.6 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking cpuid-bool v0.1.2 [INFO] [stderr] Checking blake2s_simd v0.5.11 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Checking bitvec v0.18.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking sha2 v0.9.2 [INFO] [stderr] Checking ff v0.8.0 [INFO] [stderr] Checking group v0.8.0 [INFO] [stderr] Checking pairing v0.18.0 [INFO] [stderr] Checking bellman v0.8.1 [INFO] [stderr] Checking bls12_381 v0.3.1 [INFO] [stderr] Checking bellman-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `groth16` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | groth16, Circuit, ConstraintSystem, SynthesisError, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bls12_381::Bls12` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use bls12_381::Bls12; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::rngs::OsRng` [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use rand::rngs::OsRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Digest` and `Sha256` [INFO] [stdout] --> src/main.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | use sha2::{Digest, Sha256}; [INFO] [stdout] | ^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sha256d` is never used [INFO] [stdout] --> src/main.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn sha256d>( [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyCircuit` is never constructed [INFO] [stdout] --> src/main.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | struct MyCircuit { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021 [INFO] [stdout] --> src/main.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 52 - .into_iter() [INFO] [stdout] 52 + .iter() [INFO] [stdout] | [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 51 - preimage [INFO] [stdout] 51 + IntoIterator::into_iter(preimage) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021 [INFO] [stdout] --> src/main.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 52 - .into_iter() [INFO] [stdout] 52 + .iter() [INFO] [stdout] | [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 51 - preimage [INFO] [stdout] 51 + IntoIterator::into_iter(preimage) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s [INFO] running `Command { std: "docker" "inspect" "447ab290d8c86f013faf779fcb00dcc917bbb41478c666828820a0b08dcae134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "447ab290d8c86f013faf779fcb00dcc917bbb41478c666828820a0b08dcae134", kill_on_drop: false }` [INFO] [stdout] 447ab290d8c86f013faf779fcb00dcc917bbb41478c666828820a0b08dcae134