[INFO] fetching crate ark-ff 0.3.0...
[INFO] testing ark-ff-0.3.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[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 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 4cca29d067fefe475a1bd1d2f6343d3de984863258d74dcb928e8562d8009ccf
[INFO] running `Command { std: "docker" "start" "-a" "4cca29d067fefe475a1bd1d2f6343d3de984863258d74dcb928e8562d8009ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cca29d067fefe475a1bd1d2f6343d3de984863258d74dcb928e8562d8009ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cca29d067fefe475a1bd1d2f6343d3de984863258d74dcb928e8562d8009ccf", kill_on_drop: false }`
[INFO] [stdout] 4cca29d067fefe475a1bd1d2f6343d3de984863258d74dcb928e8562d8009ccf
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52dbd29d23fcfd04aa97941a638541463ea0a463960195e1e222ed79f1d69ad8
[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" "52dbd29d23fcfd04aa97941a638541463ea0a463960195e1e222ed79f1d69ad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0
[INFO] [stderr]    Compiling ark-ff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-asm v0.3.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]    Compiling zeroize v1.4.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "52dbd29d23fcfd04aa97941a638541463ea0a463960195e1e222ed79f1d69ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52dbd29d23fcfd04aa97941a638541463ea0a463960195e1e222ed79f1d69ad8", kill_on_drop: false }`
[INFO] [stdout] 52dbd29d23fcfd04aa97941a638541463ea0a463960195e1e222ed79f1d69ad8
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 0b98e112e18b581a787be0411dc35f7f8d444fe78b43f4efeadc03ca30363d13
[INFO] running `Command { std: "docker" "start" "-a" "0b98e112e18b581a787be0411dc35f7f8d444fe78b43f4efeadc03ca30363d13", kill_on_drop: false }`
[INFO] [stderr]    Compiling ark-ff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.99s
[INFO] running `Command { std: "docker" "inspect" "0b98e112e18b581a787be0411dc35f7f8d444fe78b43f4efeadc03ca30363d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b98e112e18b581a787be0411dc35f7f8d444fe78b43f4efeadc03ca30363d13", kill_on_drop: false }`
[INFO] [stdout] 0b98e112e18b581a787be0411dc35f7f8d444fe78b43f4efeadc03ca30363d13
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", 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] aa4e2aae3f35aeafbba9b0b209911a1261965a4021d6d96faa372aaaf059330c
[INFO] running `Command { std: "docker" "start" "-a" "aa4e2aae3f35aeafbba9b0b209911a1261965a4021d6d96faa372aaaf059330c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 16 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ark_ff-033d1cf5439e88c3)
[INFO] [stdout] test biginteger::tests::test_biginteger448 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger128 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger384 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger256 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger832 ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger768 ... ok
[INFO] [stdout] test bytes::test::test_macro_empty ... ok
[INFO] [stdout] test bytes::test::test_macro ... 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 fields::no_std_tests::test_from_into_biguint ... ok
[INFO] [stdout] test test_field::fq::test_const_from_repr ... ok
[INFO] [stdout] test fields::models::fp12_2over3over2::test::test_characteristic_square_mod_6_is_one ... ok
[INFO] [stdout] test biginteger::tests::test_biginteger64 ... 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 0.88s
[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" "aa4e2aae3f35aeafbba9b0b209911a1261965a4021d6d96faa372aaaf059330c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa4e2aae3f35aeafbba9b0b209911a1261965a4021d6d96faa372aaaf059330c", kill_on_drop: false }`
[INFO] [stdout] aa4e2aae3f35aeafbba9b0b209911a1261965a4021d6d96faa372aaaf059330c