[INFO] cloning repository https://github.com/arkworks-rs/curves
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arkworks-rs/curves" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkworks-rs%2Fcurves", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkworks-rs%2Fcurves'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5c2d8eba33778ebf4d18e35b60b692b38077ddc
[INFO] testing arkworks-rs/curves against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkworks-rs%2Fcurves" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arkworks-rs/curves on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arkworks-rs/curves
[INFO] finished tweaking git repo https://github.com/arkworks-rs/curves
[INFO] tweaked toml for git repo https://github.com/arkworks-rs/curves written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46bf163f104213a9e9b38cce2a4c9c4e696dcc45a50eeb4f4f6a6f2ad76f5d25
[INFO] running `Command { std: "docker" "start" "-a" "46bf163f104213a9e9b38cce2a4c9c4e696dcc45a50eeb4f4f6a6f2ad76f5d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46bf163f104213a9e9b38cce2a4c9c4e696dcc45a50eeb4f4f6a6f2ad76f5d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bf163f104213a9e9b38cce2a4c9c4e696dcc45a50eeb4f4f6a6f2ad76f5d25", kill_on_drop: false }`
[INFO] [stdout] 46bf163f104213a9e9b38cce2a4c9c4e696dcc45a50eeb4f4f6a6f2ad76f5d25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8547ed94e37b24ee61bc0747641c67b072a3ac636be504f37994ef162068293c
[INFO] running `Command { std: "docker" "start" "-a" "8547ed94e37b24ee61bc0747641c67b072a3ac636be504f37994ef162068293c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling ark-curve-benches v0.3.0 (/opt/rustwide/workdir/curve-benches)
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0
[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 synstructure v0.12.5
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]    Compiling ark-ff-asm v0.3.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling zeroize v1.4.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling ark-ec v0.3.0
[INFO] [stderr]    Compiling ark-relations v0.3.0
[INFO] [stderr]    Compiling ark-bls12-377 v0.3.0 (/opt/rustwide/workdir/bls12_377)
[INFO] [stderr]    Compiling ark-mnt4-298 v0.3.0 (/opt/rustwide/workdir/mnt4_298)
[INFO] [stderr]    Compiling ark-mnt4-753 v0.3.0 (/opt/rustwide/workdir/mnt4_753)
[INFO] [stderr]    Compiling ark-bn254 v0.3.0 (/opt/rustwide/workdir/bn254)
[INFO] [stderr]    Compiling ark-bls12-381 v0.3.0
[INFO] [stderr]    Compiling ark-bls12-381 v0.3.0 (/opt/rustwide/workdir/bls12_381)
[INFO] [stderr]    Compiling ark-pallas v0.3.0 (/opt/rustwide/workdir/pallas)
[INFO] [stderr]    Compiling ark-r1cs-std v0.3.1
[INFO] [stderr]    Compiling ark-ed-on-bls12-381-bandersnatch v0.1.0 (/opt/rustwide/workdir/ed_on_bls12_381_bandersnatch)
[INFO] [stderr]    Compiling ark-vesta v0.3.0 (/opt/rustwide/workdir/vesta)
[INFO] [stderr]    Compiling ark-ed-on-cp6-782 v0.3.0 (/opt/rustwide/workdir/ed_on_cp6_782)
[INFO] [stderr]    Compiling ark-ed-on-bls12-377 v0.3.0 (/opt/rustwide/workdir/ed_on_bls12_377)
[INFO] [stderr]    Compiling ark-bw6-761 v0.3.0 (/opt/rustwide/workdir/bw6_761)
[INFO] [stderr]    Compiling ark-cp6-782 v0.3.0 (/opt/rustwide/workdir/cp6_782)
[INFO] [stderr]    Compiling ark-ed-on-bls12-381 v0.3.0 (/opt/rustwide/workdir/ed_on_bls12_381)
[INFO] [stderr]    Compiling ark-ed-on-mnt4-753 v0.3.0 (/opt/rustwide/workdir/ed_on_mnt4_753)
[INFO] [stderr]    Compiling ark-mnt6-753 v0.3.0 (/opt/rustwide/workdir/mnt6_753)
[INFO] [stderr]    Compiling ark-mnt6-298 v0.3.0 (/opt/rustwide/workdir/mnt6_298)
[INFO] [stderr]    Compiling ark-ed-on-mnt4-298 v0.3.0 (/opt/rustwide/workdir/ed_on_mnt4_298)
[INFO] [stderr]    Compiling ark-ed-on-bw6-761 v0.3.0 (/opt/rustwide/workdir/ed_on_bw6_761)
[INFO] [stderr]    Compiling ark-ed-on-bn254 v0.3.0 (/opt/rustwide/workdir/ed_on_bn254)
[INFO] [stderr]    Compiling ark-curve-constraint-tests v0.3.0 (/opt/rustwide/workdir/curve-constraint-tests)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "8547ed94e37b24ee61bc0747641c67b072a3ac636be504f37994ef162068293c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8547ed94e37b24ee61bc0747641c67b072a3ac636be504f37994ef162068293c", kill_on_drop: false }`
[INFO] [stdout] 8547ed94e37b24ee61bc0747641c67b072a3ac636be504f37994ef162068293c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a2b1e5b927771859e0c5701708f65dffa76e7ff2212c8fcae5871e56c1c398e
[INFO] running `Command { std: "docker" "start" "-a" "2a2b1e5b927771859e0c5701708f65dffa76e7ff2212c8fcae5871e56c1c398e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ark-curve-benches v0.3.0 (/opt/rustwide/workdir/curve-benches)
[INFO] [stderr]    Compiling zeroize v1.4.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]    Compiling ark-ff v0.3.0
[INFO] [stderr]    Compiling ark-ec v0.3.0
[INFO] [stderr]    Compiling ark-relations v0.3.0
[INFO] [stderr]    Compiling ark-algebra-test-templates v0.3.0
[INFO] [stderr]    Compiling ark-r1cs-std v0.3.1
[INFO] [stderr]    Compiling ark-bls12-377 v0.3.0 (/opt/rustwide/workdir/bls12_377)
[INFO] [stderr]    Compiling ark-mnt4-753 v0.3.0 (/opt/rustwide/workdir/mnt4_753)
[INFO] [stderr]    Compiling ark-mnt4-298 v0.3.0 (/opt/rustwide/workdir/mnt4_298)
[INFO] [stderr]    Compiling ark-bls12-381 v0.3.0 (/opt/rustwide/workdir/bls12_381)
[INFO] [stderr]    Compiling ark-bn254 v0.3.0 (/opt/rustwide/workdir/bn254)
[INFO] [stderr]    Compiling ark-pallas v0.3.0 (/opt/rustwide/workdir/pallas)
[INFO] [stderr]    Compiling ark-bls12-381 v0.3.0
[INFO] [stderr]    Compiling ark-ed-on-bls12-381-bandersnatch v0.1.0 (/opt/rustwide/workdir/ed_on_bls12_381_bandersnatch)
[INFO] [stderr]    Compiling ark-vesta v0.3.0 (/opt/rustwide/workdir/vesta)
[INFO] [stderr]    Compiling ark-mnt6-298 v0.3.0 (/opt/rustwide/workdir/mnt6_298)
[INFO] [stderr]    Compiling ark-ed-on-mnt4-298 v0.3.0 (/opt/rustwide/workdir/ed_on_mnt4_298)
[INFO] [stderr]    Compiling ark-ed-on-cp6-782 v0.3.0 (/opt/rustwide/workdir/ed_on_cp6_782)
[INFO] [stderr]    Compiling ark-bw6-761 v0.3.0 (/opt/rustwide/workdir/bw6_761)
[INFO] [stderr]    Compiling ark-cp6-782 v0.3.0 (/opt/rustwide/workdir/cp6_782)
[INFO] [stderr]    Compiling ark-ed-on-bls12-377 v0.3.0 (/opt/rustwide/workdir/ed_on_bls12_377)
[INFO] [stderr]    Compiling ark-mnt6-753 v0.3.0 (/opt/rustwide/workdir/mnt6_753)
[INFO] [stderr]    Compiling ark-ed-on-mnt4-753 v0.3.0 (/opt/rustwide/workdir/ed_on_mnt4_753)
[INFO] [stderr]    Compiling ark-ed-on-bn254 v0.3.0 (/opt/rustwide/workdir/ed_on_bn254)
[INFO] [stderr]    Compiling ark-ed-on-bls12-381 v0.3.0 (/opt/rustwide/workdir/ed_on_bls12_381)
[INFO] [stderr]    Compiling ark-ed-on-bw6-761 v0.3.0 (/opt/rustwide/workdir/ed_on_bw6_761)
[INFO] [stderr]    Compiling ark-curve-constraint-tests v0.3.0 (/opt/rustwide/workdir/curve-constraint-tests)
[INFO] [stderr] error: could not compile `ark-bw6-761`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ark_bw6_761 --edition=2018 bw6_761/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C opt-level=3 -C lto=thin -C debuginfo=2 -C debug-assertions=on --test --cfg 'feature="default"' -C metadata=f126710930a633bd -C extra-filename=-f126710930a633bd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ark_algebra_test_templates=/opt/rustwide/target/debug/deps/libark_algebra_test_templates-fce5ccf33245f5d5.rlib --extern ark_bls12_377=/opt/rustwide/target/debug/deps/libark_bls12_377-f17631b438357930.rlib --extern ark_ec=/opt/rustwide/target/debug/deps/libark_ec-df5cd5e56f474cba.rlib --extern ark_ff=/opt/rustwide/target/debug/deps/libark_ff-6742e82830c73f7c.rlib --extern ark_serialize=/opt/rustwide/target/debug/deps/libark_serialize-2eb462cc0ecbd553.rlib --extern ark_std=/opt/rustwide/target/debug/deps/libark_std-31a46fdd7820be94.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2a2b1e5b927771859e0c5701708f65dffa76e7ff2212c8fcae5871e56c1c398e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2b1e5b927771859e0c5701708f65dffa76e7ff2212c8fcae5871e56c1c398e", kill_on_drop: false }`
[INFO] [stdout] 2a2b1e5b927771859e0c5701708f65dffa76e7ff2212c8fcae5871e56c1c398e