[INFO] fetching crate ark-mnt4-753 0.3.0...
[INFO] testing ark-mnt4-753-0.3.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate ark-mnt4-753 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ark-mnt4-753 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-mnt4-753 0.3.0
[INFO] finished tweaking crates.io crate ark-mnt4-753 0.3.0
[INFO] tweaked toml for crates.io crate ark-mnt4-753 0.3.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a8906008bf61ad26d72e9f215fc522ea5d19d9a329d448078cc5bb6737c43d38
[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" "a8906008bf61ad26d72e9f215fc522ea5d19d9a329d448078cc5bb6737c43d38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8906008bf61ad26d72e9f215fc522ea5d19d9a329d448078cc5bb6737c43d38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8906008bf61ad26d72e9f215fc522ea5d19d9a329d448078cc5bb6737c43d38", kill_on_drop: false }`
[INFO] [stdout] a8906008bf61ad26d72e9f215fc522ea5d19d9a329d448078cc5bb6737c43d38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 73c855708f7e82f2372d0fbb13100fd2f2aa8efdd964e86e9ddbf65fe13d9398
[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" "73c855708f7e82f2372d0fbb13100fd2f2aa8efdd964e86e9ddbf65fe13d9398", kill_on_drop: false }`
[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 syn v1.0.73
[INFO] [stderr]    Compiling ark-ff v0.3.0
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling ark-ff-asm v0.3.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-macros v0.3.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling ark-ec v0.3.0
[INFO] [stderr]    Compiling ark-mnt4-753 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.07s
[INFO] running `Command { std: "docker" "inspect" "73c855708f7e82f2372d0fbb13100fd2f2aa8efdd964e86e9ddbf65fe13d9398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c855708f7e82f2372d0fbb13100fd2f2aa8efdd964e86e9ddbf65fe13d9398", kill_on_drop: false }`
[INFO] [stdout] 73c855708f7e82f2372d0fbb13100fd2f2aa8efdd964e86e9ddbf65fe13d9398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] a4af4c704a9e96d3cc25dced3285b502959732a016799dbbb814431e2ed32267
[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" "a4af4c704a9e96d3cc25dced3285b502959732a016799dbbb814431e2ed32267", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling ark-algebra-test-templates v0.3.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling ark-relations v0.3.0
[INFO] [stderr]    Compiling ark-mnt4-753 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `Command { std: "docker" "inspect" "a4af4c704a9e96d3cc25dced3285b502959732a016799dbbb814431e2ed32267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4af4c704a9e96d3cc25dced3285b502959732a016799dbbb814431e2ed32267", kill_on_drop: false }`
[INFO] [stdout] a4af4c704a9e96d3cc25dced3285b502959732a016799dbbb814431e2ed32267
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1a0720f05253b2acbc9363246fa83755716cf6d5add1a1d2b58c3e248a8f66bb
[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" "1a0720f05253b2acbc9363246fa83755716cf6d5add1a1d2b58c3e248a8f66bb", 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_mnt4_753-2f31716ffcc8cd0b)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test curves::tests::test_g1_generator ... ok
[INFO] [stdout] test curves::tests::test_g2_generator ... ok
[INFO] [stdout] test curves::tests::test_g1_projective_group ... ok
[INFO] [stdout] test fields::tests::test_fq ... ok
[INFO] [stdout] test fields::tests::test_fr ... ok
[INFO] [stdout] test curves::tests::test_product_of_pairings ... ok
[INFO] [stdout] test curves::tests::test_bilinearity ... ok
[INFO] [stdout] test curves::tests::test_g2_projective_group ... ok
[INFO] [stdout] test fields::tests::test_fq2 ... ok
[INFO] [stdout] test curves::tests::test_g1_projective_curve ... ok
[INFO] [stdout] test fields::tests::test_fq4 ... ok
[INFO] [stdout] test curves::tests::test_g2_projective_curve has been running for over 60 seconds
[INFO] [stderr]    Doc-tests ark-mnt4-753
[INFO] [stdout] test curves::tests::test_g2_projective_curve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 124.15s
[INFO] [stdout] 
[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" "1a0720f05253b2acbc9363246fa83755716cf6d5add1a1d2b58c3e248a8f66bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0720f05253b2acbc9363246fa83755716cf6d5add1a1d2b58c3e248a8f66bb", kill_on_drop: false }`
[INFO] [stdout] 1a0720f05253b2acbc9363246fa83755716cf6d5add1a1d2b58c3e248a8f66bb