[INFO] fetching crate ark-ff 0.3.0...
[INFO] testing ark-ff-0.3.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate ark-ff 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ark-ff 0.3.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-ff 0.3.0
[INFO] finished tweaking crates.io crate ark-ff 0.3.0
[INFO] tweaked toml for crates.io crate ark-ff 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4ddde0082dea2f4cf8429fe3fdb71eb2f0e88b6a755d15685aa9db28df5e4b8
[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" "d4ddde0082dea2f4cf8429fe3fdb71eb2f0e88b6a755d15685aa9db28df5e4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4ddde0082dea2f4cf8429fe3fdb71eb2f0e88b6a755d15685aa9db28df5e4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ddde0082dea2f4cf8429fe3fdb71eb2f0e88b6a755d15685aa9db28df5e4b8", kill_on_drop: false }`
[INFO] [stdout] d4ddde0082dea2f4cf8429fe3fdb71eb2f0e88b6a755d15685aa9db28df5e4b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", 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] 1578c39a664f65d3d50cd22d17ec34264ed63a3ab091bccd475458be7b05885f
[INFO] running `Command { std: "docker" "start" "-a" "1578c39a664f65d3d50cd22d17ec34264ed63a3ab091bccd475458be7b05885f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ark-ff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.73s
[INFO] running `Command { std: "docker" "inspect" "1578c39a664f65d3d50cd22d17ec34264ed63a3ab091bccd475458be7b05885f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1578c39a664f65d3d50cd22d17ec34264ed63a3ab091bccd475458be7b05885f", kill_on_drop: false }`
[INFO] [stdout] 1578c39a664f65d3d50cd22d17ec34264ed63a3ab091bccd475458be7b05885f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", 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] 09a7ae2515d306fc3a07788072aa44153434857eb1dd7bbd74ea7afc05d9e8aa
[INFO] running `Command { std: "docker" "start" "-a" "09a7ae2515d306fc3a07788072aa44153434857eb1dd7bbd74ea7afc05d9e8aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling ark-ff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.93s
[INFO] running `Command { std: "docker" "inspect" "09a7ae2515d306fc3a07788072aa44153434857eb1dd7bbd74ea7afc05d9e8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09a7ae2515d306fc3a07788072aa44153434857eb1dd7bbd74ea7afc05d9e8aa", kill_on_drop: false }`
[INFO] [stdout] 09a7ae2515d306fc3a07788072aa44153434857eb1dd7bbd74ea7afc05d9e8aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e89c07aa743544c7f8a2058d1d61520c75b9aff5aec8d6cadd9f128be212843
[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" "4e89c07aa743544c7f8a2058d1d61520c75b9aff5aec8d6cadd9f128be212843", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ark_ff-8f426ccce2f7f1be)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test biginteger::tests::test_biginteger128 ... ok
[INFO] [stdout] test fields::models::fp12_2over3over2::test::test_characteristic_square_mod_6_is_one ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger384 ... ok
[INFO] [stdout] test bytes::test::test_macro ... ok
[INFO] [stdout] test bytes::test::test_macro_empty ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger256 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger64 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger768 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger832 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger448 ... ok
[INFO] [stdout] test fields::models::quadratic_extension::quad_ext_tests::test_from_base_prime_field_elements ... ok
[INFO] [stdout] test fields::models::cubic_extension::cube_ext_tests::test_from_base_prime_field_elements ... ok
[INFO] [stdout] test test_field::fq::test_const_from_repr ... ok
[INFO] [stdout] test fields::no_std_tests::test_from_into_biguint ... ok
[INFO] [stdout] test fields::no_std_tests::test_batch_inversion ... ok
[INFO] [stdout] test fields::no_std_tests::test_from_be_bytes_mod_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ark-ff
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e89c07aa743544c7f8a2058d1d61520c75b9aff5aec8d6cadd9f128be212843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e89c07aa743544c7f8a2058d1d61520c75b9aff5aec8d6cadd9f128be212843", kill_on_drop: false }`
[INFO] [stdout] 4e89c07aa743544c7f8a2058d1d61520c75b9aff5aec8d6cadd9f128be212843