[INFO] fetching crate popcorn-butter 0.1.0...
[INFO] checking popcorn-butter-0.1.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate popcorn-butter 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate popcorn-butter 0.1.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate popcorn-butter 0.1.0
[INFO] removed path dependency popcorn from crates.io crate popcorn-butter 0.1.0
[INFO] removed path dependency popcorn-blas from crates.io crate popcorn-butter 0.1.0
[INFO] finished tweaking crates.io crate popcorn-butter 0.1.0
[INFO] tweaked toml for crates.io crate popcorn-butter 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded popcorn-blas v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94be98ae0e1a28e6aebb9e87b458ed2d8566401411faeec3a8628034f207d73f
[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" "94be98ae0e1a28e6aebb9e87b458ed2d8566401411faeec3a8628034f207d73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94be98ae0e1a28e6aebb9e87b458ed2d8566401411faeec3a8628034f207d73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94be98ae0e1a28e6aebb9e87b458ed2d8566401411faeec3a8628034f207d73f", kill_on_drop: false }`
[INFO] [stdout] 94be98ae0e1a28e6aebb9e87b458ed2d8566401411faeec3a8628034f207d73f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09c3f24e3bfa11f977436a7800ea0f49454fe7005b3513fb9cf65faee7d8dfbe
[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" "09c3f24e3bfa11f977436a7800ea0f49454fe7005b3513fb9cf65faee7d8dfbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking blas-sys v0.6.9
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking popcorn v0.1.0
[INFO] [stderr]     Checking popcorn-blas v0.1.0
[INFO] [stderr]     Checking popcorn-butter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.17s
[INFO] running `Command { std: "docker" "inspect" "09c3f24e3bfa11f977436a7800ea0f49454fe7005b3513fb9cf65faee7d8dfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c3f24e3bfa11f977436a7800ea0f49454fe7005b3513fb9cf65faee7d8dfbe", kill_on_drop: false }`
[INFO] [stdout] 09c3f24e3bfa11f977436a7800ea0f49454fe7005b3513fb9cf65faee7d8dfbe