[INFO] fetching crate bellperson-nonnative 0.4.0... [INFO] checking bellperson-nonnative-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate bellperson-nonnative 0.4.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate bellperson-nonnative 0.4.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate bellperson-nonnative 0.4.0 [INFO] finished tweaking crates.io crate bellperson-nonnative 0.4.0 [INFO] tweaked toml for crates.io crate bellperson-nonnative 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 92 packages [INFO] [stderr] Adding bellperson v0.24.1 (latest: v0.26.0) [INFO] [stderr] Adding blstrs v0.6.2 (latest: v0.7.1) [INFO] [stderr] Adding ec-gpu-gen v0.5.2 (latest: v0.7.0) [INFO] [stderr] Adding env_logger v0.8.4 (latest: v0.11.3) [INFO] [stderr] Adding ff v0.12.1 (latest: v0.13.0) [INFO] [stderr] Adding ff_derive v0.12.1 (latest: v0.13.0) [INFO] [stderr] Adding flume v0.10.14 (latest: v0.11.0) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding group v0.12.1 (latest: v0.13.0) [INFO] [stderr] Adding memmap2 v0.5.10 (latest: v0.9.4) [INFO] [stderr] Adding num-bigint v0.3.3 (latest: v0.4.4) [INFO] [stderr] Adding pairing v0.22.0 (latest: v0.23.0) [INFO] [stderr] Adding radium v0.7.0 (latest: v1.1.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wyz v0.5.1 (latest: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand v0.8.5 [INFO] [stderr] Downloaded env_logger v0.8.4 [INFO] [stderr] Downloaded quickcheck v1.0.3 [INFO] [stderr] Downloaded quickcheck_macros v1.0.0 [INFO] [stderr] Downloaded rand_chacha v0.3.1 [INFO] [stderr] Downloaded crossbeam-deque v0.8.5 [INFO] [stderr] Downloaded funty v2.0.0 [INFO] [stderr] Downloaded tap v1.0.1 [INFO] [stderr] Downloaded constant_time_eq v0.3.0 [INFO] [stderr] Downloaded byte-slice-cast v1.2.2 [INFO] [stderr] Downloaded ec-gpu v0.2.0 [INFO] [stderr] Downloaded group v0.12.1 [INFO] [stderr] Downloaded blake2s_simd v1.0.2 [INFO] [stderr] Downloaded execute-command-macro-impl v0.1.10 [INFO] [stderr] Downloaded execute-command-tokens v0.1.7 [INFO] [stderr] Downloaded execute v0.2.13 [INFO] [stderr] Downloaded pairing v0.22.0 [INFO] [stderr] Downloaded rustversion v1.0.14 [INFO] [stderr] Downloaded rand_xorshift v0.3.0 [INFO] [stderr] Downloaded arrayvec v0.7.4 [INFO] [stderr] Downloaded execute-command-macro v0.1.9 [INFO] [stderr] Downloaded yastl v0.1.2 [INFO] [stderr] Downloaded sha2 v0.10.8 [INFO] [stderr] Downloaded glob v0.3.1 [INFO] [stderr] Downloaded bincode v1.3.3 [INFO] [stderr] Downloaded generic-array v1.0.0 [INFO] [stderr] Downloaded spin v0.9.8 [INFO] [stderr] Downloaded ec-gpu-gen v0.5.2 [INFO] [stderr] Downloaded memmap2 v0.5.10 [INFO] [stderr] Downloaded ff v0.12.1 [INFO] [stderr] Downloaded threadpool v1.8.1 [INFO] [stderr] Downloaded ff_derive v0.12.1 [INFO] [stderr] Downloaded addchain v0.2.0 [INFO] [stderr] Downloaded radium v0.7.0 [INFO] [stderr] Downloaded wyz v0.5.1 [INFO] [stderr] Downloaded num-integer v0.1.46 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.18 [INFO] [stderr] Downloaded blstrs v0.6.2 [INFO] [stderr] Downloaded flume v0.10.14 [INFO] [stderr] Downloaded rayon-core v1.12.1 [INFO] [stderr] Downloaded num-bigint v0.3.3 [INFO] [stderr] Downloaded rayon v1.10.0 [INFO] [stderr] Downloaded bellperson v0.24.1 [INFO] [stderr] Downloaded blst v0.3.11 [INFO] [stderr] Downloaded regex-syntax v0.8.3 [INFO] [stderr] Downloaded regex-automata v0.4.6 [INFO] [stderr] Downloaded bitvec v1.0.1 [INFO] [stderr] Downloaded aho-corasick v1.1.3 [INFO] [stderr] Downloaded regex v1.10.4 [INFO] [stderr] Downloaded num-bigint v0.4.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4b9f9fcddc02490d20b370fc6f3601a13a0a404d8062efec49c96c273282856f [INFO] running `Command { std: "docker" "start" "-a" "4b9f9fcddc02490d20b370fc6f3601a13a0a404d8062efec49c96c273282856f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4b9f9fcddc02490d20b370fc6f3601a13a0a404d8062efec49c96c273282856f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b9f9fcddc02490d20b370fc6f3601a13a0a404d8062efec49c96c273282856f", kill_on_drop: false }` [INFO] [stdout] 4b9f9fcddc02490d20b370fc6f3601a13a0a404d8062efec49c96c273282856f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ee3e75f82b8196ab140a193826385682118b5624875aa9a5cd5bf0aeebedd0a [INFO] running `Command { std: "docker" "start" "-a" "1ee3e75f82b8196ab140a193826385682118b5624875aa9a5cd5bf0aeebedd0a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling execute-command-tokens v0.1.7 [INFO] [stderr] Compiling tap v1.0.1 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling funty v2.0.0 [INFO] [stderr] Compiling wyz v0.5.1 [INFO] [stderr] Compiling cc v1.0.90 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Compiling subtle v2.5.0 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling rand_xorshift v0.3.0 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Compiling num-bigint v0.3.3 [INFO] [stderr] Compiling ec-gpu-gen v0.5.2 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling bitvec v1.0.1 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling spin v0.9.8 [INFO] [stderr] Compiling either v1.10.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling flume v0.10.14 [INFO] [stderr] Compiling cpufeatures v0.2.12 [INFO] [stderr] Compiling rustversion v1.0.14 [INFO] [stderr] Compiling crossbeam-deque v0.8.5 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling yastl v0.1.2 [INFO] [stderr] Compiling threadpool v1.8.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.12 [INFO] [stderr] Compiling ec-gpu v0.2.0 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling blst v0.3.11 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling hex v0.4.3 [INFO] [stderr] Compiling generic-array v1.0.0 [INFO] [stderr] Compiling rayon v1.10.0 [INFO] [stderr] Compiling byte-slice-cast v1.2.2 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Compiling crypto-common v0.1.6 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling num-bigint v0.4.4 [INFO] [stderr] Compiling sha2 v0.10.8 [INFO] [stderr] Checking arrayref v0.3.7 [INFO] [stderr] Checking constant_time_eq v0.3.0 [INFO] [stderr] Checking arrayvec v0.7.4 [INFO] [stderr] Checking memmap2 v0.5.10 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking blake2s_simd v1.0.2 [INFO] [stderr] Compiling ff v0.12.1 [INFO] [stderr] Compiling group v0.12.1 [INFO] [stderr] Compiling pairing v0.22.0 [INFO] [stderr] Compiling addchain v0.2.0 [INFO] [stderr] Compiling quickcheck_macros v1.0.0 [INFO] [stderr] Compiling ff_derive v0.12.1 [INFO] [stderr] Compiling zeroize_derive v1.4.2 [INFO] [stderr] Compiling execute-command-macro-impl v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Compiling execute-command-macro v0.1.9 [INFO] [stderr] Compiling execute v0.2.13 [INFO] [stderr] Compiling zeroize v1.7.0 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking quickcheck v1.0.3 [INFO] [stderr] Checking blstrs v0.6.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Compiling bellperson v0.24.1 [INFO] [stderr] Checking bellperson-nonnative v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/util/num.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/mp/bignat.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `PrimeField` is imported redundantly [INFO] [stdout] --> src/util/convert.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 44 | use super::*; [INFO] [stdout] | -------- the item `PrimeField` is already imported here [INFO] [stdout] 45 | use crate::util::scalar::Fr; [INFO] [stdout] 46 | use ff::PrimeField; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/util/num.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/mp/bignat.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `grab_mut` is never used [INFO] [stdout] --> src/lib.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 14 | trait OptionExt { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] 15 | fn grab(&self) -> Result<&T, SynthesisError>; [INFO] [stdout] 16 | fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&BigInt` instead of cloning the inner type [INFO] [stdout] --> src/mp/bignat.rs:1293:32 [INFO] [stdout] | [INFO] [stdout] 1293 | || Ok(value.grab()?.clone().clone()), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `grab_mut` is never used [INFO] [stdout] --> src/lib.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 14 | trait OptionExt { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] 15 | fn grab(&self) -> Result<&T, SynthesisError>; [INFO] [stdout] 16 | fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&num_bigint::BigInt` instead of cloning the inner type [INFO] [stdout] --> src/mp/bignat.rs:1293:32 [INFO] [stdout] | [INFO] [stdout] 1293 | || Ok(value.grab()?.clone().clone()), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.55s [INFO] running `Command { std: "docker" "inspect" "1ee3e75f82b8196ab140a193826385682118b5624875aa9a5cd5bf0aeebedd0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ee3e75f82b8196ab140a193826385682118b5624875aa9a5cd5bf0aeebedd0a", kill_on_drop: false }` [INFO] [stdout] 1ee3e75f82b8196ab140a193826385682118b5624875aa9a5cd5bf0aeebedd0a