[INFO] fetching crate if 0.0.0...
[INFO] checking if-0.0.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate if 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate if 0.0.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate if 0.0.0
[INFO] finished tweaking crates.io crate if 0.0.0
[INFO] tweaked toml for crates.io crate if 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7de989ed316050e5801d240a77fea7db1900ff9a25db6c8152b2a195a1eaeff
[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" "c7de989ed316050e5801d240a77fea7db1900ff9a25db6c8152b2a195a1eaeff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7de989ed316050e5801d240a77fea7db1900ff9a25db6c8152b2a195a1eaeff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7de989ed316050e5801d240a77fea7db1900ff9a25db6c8152b2a195a1eaeff", kill_on_drop: false }`
[INFO] [stdout] c7de989ed316050e5801d240a77fea7db1900ff9a25db6c8152b2a195a1eaeff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e7d2458662517d84ddee4c4463eb4aa550ef0a31a7e538621b913237c91ae24
[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" "7e7d2458662517d84ddee4c4463eb4aa550ef0a31a7e538621b913237c91ae24", kill_on_drop: false }`
[INFO] [stderr]     Checking if v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "7e7d2458662517d84ddee4c4463eb4aa550ef0a31a7e538621b913237c91ae24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7d2458662517d84ddee4c4463eb4aa550ef0a31a7e538621b913237c91ae24", kill_on_drop: false }`
[INFO] [stdout] 7e7d2458662517d84ddee4c4463eb4aa550ef0a31a7e538621b913237c91ae24
