[INFO] fetching crate ark-ed-on-bw6-761 0.2.0...
[INFO] checking ark-ed-on-bw6-761-0.2.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate ark-ed-on-bw6-761 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ark-ed-on-bw6-761 0.2.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-ed-on-bw6-761 0.2.0
[INFO] finished tweaking crates.io crate ark-ed-on-bw6-761 0.2.0
[INFO] tweaked toml for crates.io crate ark-ed-on-bw6-761 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-ed-on-cp6-782 v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0103b2a616cbc4bf3edb639e807ccbedfc95b0f6788a0c57365b03819b33c9b
[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" "a0103b2a616cbc4bf3edb639e807ccbedfc95b0f6788a0c57365b03819b33c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0103b2a616cbc4bf3edb639e807ccbedfc95b0f6788a0c57365b03819b33c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0103b2a616cbc4bf3edb639e807ccbedfc95b0f6788a0c57365b03819b33c9b", kill_on_drop: false }`
[INFO] [stdout] a0103b2a616cbc4bf3edb639e807ccbedfc95b0f6788a0c57365b03819b33c9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 745ea794400c47035f5e171c2e6231a4a6c2f3e019c2d87c06ba8e4833256fbc
[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" "745ea794400c47035f5e171c2e6231a4a6c2f3e019c2d87c06ba8e4833256fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling ark-ff-macros v0.2.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-asm v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking ark-ff v0.2.0
[INFO] [stderr]     Checking ark-ec v0.2.0
[INFO] [stderr]     Checking ark-relations v0.2.0
[INFO] [stderr]     Checking ark-bls12-377 v0.2.0
[INFO] [stderr]     Checking ark-r1cs-std v0.2.0
[INFO] [stderr]     Checking ark-ed-on-cp6-782 v0.2.0
[INFO] [stderr]     Checking ark-ed-on-bw6-761 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "745ea794400c47035f5e171c2e6231a4a6c2f3e019c2d87c06ba8e4833256fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745ea794400c47035f5e171c2e6231a4a6c2f3e019c2d87c06ba8e4833256fbc", kill_on_drop: false }`
[INFO] [stdout] 745ea794400c47035f5e171c2e6231a4a6c2f3e019c2d87c06ba8e4833256fbc