[INFO] cloning repository https://github.com/kobigurk/pairing-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kobigurk/pairing-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobigurk%2Fpairing-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobigurk%2Fpairing-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39ca0b99e910e4b3ec69324d7f32e49defeae124
[INFO] checking kobigurk/pairing-demo against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobigurk%2Fpairing-demo" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kobigurk/pairing-demo on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kobigurk/pairing-demo
[INFO] finished tweaking git repo https://github.com/kobigurk/pairing-demo
[INFO] tweaked toml for git repo https://github.com/kobigurk/pairing-demo written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/kobigurk/pairing-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/arkworks-rs/curves`
[INFO] [stderr]     Updating git repository `https://github.com/arkworks-rs/algebra`
[INFO] [stderr]     Updating git repository `https://github.com/arkworks-rs/utils`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver-parser v0.10.1
[INFO] [stderr]   Downloaded rustc_version v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b51ba127953e9428313917caba748405dd55951e013d49c8d25d6a8e4a20d218
[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" "b51ba127953e9428313917caba748405dd55951e013d49c8d25d6a8e4a20d218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b51ba127953e9428313917caba748405dd55951e013d49c8d25d6a8e4a20d218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51ba127953e9428313917caba748405dd55951e013d49c8d25d6a8e4a20d218", kill_on_drop: false }`
[INFO] [stdout] b51ba127953e9428313917caba748405dd55951e013d49c8d25d6a8e4a20d218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d289dff3b049fd3fd68d0c81760e6ac6f2bd452c33cd979e987fcf0799ce3ed
[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" "6d289dff3b049fd3fd68d0c81760e6ac6f2bd452c33cd979e987fcf0799ce3ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]     Checking ark-std v0.1.0 (https://github.com/arkworks-rs/utils#f6974ac7)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling semver-parser v0.10.1
[INFO] [stderr]     Checking ark-serialize v0.1.0 (https://github.com/arkworks-rs/algebra#9bc54172)
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.0
[INFO] [stderr]    Compiling ark-ff v0.1.0 (https://github.com/arkworks-rs/algebra#9bc54172)
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling ark-ff-asm v0.1.0 (https://github.com/arkworks-rs/algebra#9bc54172)
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking ark-ec v0.1.0 (https://github.com/arkworks-rs/algebra#9bc54172)
[INFO] [stderr]     Checking ark-bls12-381 v0.1.0 (https://github.com/arkworks-rs/curves#23e87bf2)
[INFO] [stderr]     Checking pairing_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.21s
[INFO] running `Command { std: "docker" "inspect" "6d289dff3b049fd3fd68d0c81760e6ac6f2bd452c33cd979e987fcf0799ce3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d289dff3b049fd3fd68d0c81760e6ac6f2bd452c33cd979e987fcf0799ce3ed", kill_on_drop: false }`
[INFO] [stdout] 6d289dff3b049fd3fd68d0c81760e6ac6f2bd452c33cd979e987fcf0799ce3ed