[INFO] fetching crate ark-relations-zkhub 0.4.7...
[INFO] testing ark-relations-zkhub-0.4.7 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate ark-relations-zkhub 0.4.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ark-relations-zkhub 0.4.7
[INFO] finished tweaking crates.io crate ark-relations-zkhub 0.4.7
[INFO] tweaked toml for crates.io crate ark-relations-zkhub 0.4.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ark-relations-zkhub 0.4.7 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "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" "+beta-2026-03-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages to latest compatible versions
[INFO] [stderr]       Adding ark-ff v0.4.2 (available: v0.5.0)
[INFO] [stderr]       Adding ark-std v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-test-curves v0.4.2 (available: v0.5.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding tracing-subscriber v0.2.25 (available: v0.3.22)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f64622a42126959fd631a80684de573254d5d2f394ad5f1b8761c9e35c590d80
[INFO] running `Command { std: "docker" "start" "-a" "f64622a42126959fd631a80684de573254d5d2f394ad5f1b8761c9e35c590d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f64622a42126959fd631a80684de573254d5d2f394ad5f1b8761c9e35c590d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f64622a42126959fd631a80684de573254d5d2f394ad5f1b8761c9e35c590d80", kill_on_drop: false }`
[INFO] [stdout] f64622a42126959fd631a80684de573254d5d2f394ad5f1b8761c9e35c590d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1692ace6c5ff71d8cb6ab025e5468c8e898cbd4999c1a43a212e2daef5077b10
[INFO] running `Command { std: "docker" "start" "-a" "1692ace6c5ff71d8cb6ab025e5468c8e898cbd4999c1a43a212e2daef5077b10", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling zerocopy v0.8.42
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling zeroize_derive v1.4.3
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling ark-std v0.4.0
[INFO] [stderr]    Compiling ark-serialize v0.4.2
[INFO] [stderr]    Compiling ark-ff v0.4.2
[INFO] [stderr]    Compiling ark-relations-zkhub v0.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `trace` is never read
[INFO] [stdout]    --> src/r1cs/constraint_system.rs:678:21
[INFO] [stdout]     |
[INFO] [stdout] 678 |                     trace = self.constraint_traces[i].as_ref().map_or_else(
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.28s
[INFO] running `Command { std: "docker" "inspect" "1692ace6c5ff71d8cb6ab025e5468c8e898cbd4999c1a43a212e2daef5077b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1692ace6c5ff71d8cb6ab025e5468c8e898cbd4999c1a43a212e2daef5077b10", kill_on_drop: false }`
[INFO] [stdout] 1692ace6c5ff71d8cb6ab025e5468c8e898cbd4999c1a43a212e2daef5077b10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f530584fc2202f981390b79d1567326d2247741c4da1eb1f70b87b09591f94cf
[INFO] running `Command { std: "docker" "start" "-a" "f530584fc2202f981390b79d1567326d2247741c4da1eb1f70b87b09591f94cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ark-serialize-derive v0.4.2
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling ark-serialize v0.4.2
[INFO] [stderr]    Compiling ark-ff v0.4.2
[INFO] [stderr]    Compiling ark-poly v0.4.2
[INFO] [stderr]    Compiling ark-relations-zkhub v0.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `trace` is never read
[INFO] [stdout]    --> src/r1cs/constraint_system.rs:678:21
[INFO] [stdout]     |
[INFO] [stdout] 678 |                     trace = self.constraint_traces[i].as_ref().map_or_else(
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ark-ec v0.4.2
[INFO] [stderr]    Compiling ark-test-curves v0.4.2
[INFO] [stdout] warning: value assigned to `trace` is never read
[INFO] [stdout]    --> src/r1cs/constraint_system.rs:678:21
[INFO] [stdout]     |
[INFO] [stdout] 678 |                     trace = self.constraint_traces[i].as_ref().map_or_else(
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.70s
[INFO] running `Command { std: "docker" "inspect" "f530584fc2202f981390b79d1567326d2247741c4da1eb1f70b87b09591f94cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f530584fc2202f981390b79d1567326d2247741c4da1eb1f70b87b09591f94cf", kill_on_drop: false }`
[INFO] [stdout] f530584fc2202f981390b79d1567326d2247741c4da1eb1f70b87b09591f94cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3e3b1c50521a378be60cb573eda6115b6a626af6a243a1bed7ed5aec6396efe
[INFO] running `Command { std: "docker" "start" "-a" "f3e3b1c50521a378be60cb573eda6115b6a626af6a243a1bed7ed5aec6396efe", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `trace` is never read
[INFO] [stderr]    --> src/r1cs/constraint_system.rs:678:21
[INFO] [stderr]     |
[INFO] [stderr] 678 |                     trace = self.constraint_traces[i].as_ref().map_or_else(
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:7:5
[INFO] [stderr]     |
[INFO] [stderr]   7 |     unused,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: `ark-relations-zkhub` (lib) generated 1 warning
[INFO] [stderr] warning: `ark-relations-zkhub` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ark_relations_zkhub-fd7f6197bc8ea0fa)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test r1cs::constraint_system::tests::matrix_generation ... ok
[INFO] [stdout] test r1cs::constraint_system::tests::matrix_generation_example ... ok
[INFO] [stderr]    Doc-tests ark_relations_zkhub
[INFO] [stdout] test r1cs::constraint_system::tests::matrix_generation_outlined ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/r1cs/trace.rs - r1cs::trace::ConstraintTrace::capture (line 195) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/r1cs/trace.rs - r1cs::trace::ConstraintTrace::capture (line 195) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `ark_relations` in this scope
[INFO] [stdout]    --> src/r1cs/trace.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | use ark_relations::r1cs::ConstraintTrace;
[INFO] [stdout]     |     ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `ark_relations`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `ark_relations`, use `cargo add ark_relations` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/r1cs/trace.rs - r1cs::trace::ConstraintTrace::capture (line 195)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f3e3b1c50521a378be60cb573eda6115b6a626af6a243a1bed7ed5aec6396efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e3b1c50521a378be60cb573eda6115b6a626af6a243a1bed7ed5aec6396efe", kill_on_drop: false }`
[INFO] [stdout] f3e3b1c50521a378be60cb573eda6115b6a626af6a243a1bed7ed5aec6396efe
