[INFO] fetching crate bytes-ringbuffer 0.1.0...
[INFO] checking bytes-ringbuffer-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate bytes-ringbuffer 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bytes-ringbuffer 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bytes-ringbuffer 0.1.0
[INFO] finished tweaking crates.io crate bytes-ringbuffer 0.1.0
[INFO] tweaked toml for crates.io crate bytes-ringbuffer 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8d021d7cc6e468e7d6b6547a356ca70c313b73a700c72e622acf49ddb23004a
[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" "c8d021d7cc6e468e7d6b6547a356ca70c313b73a700c72e622acf49ddb23004a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d021d7cc6e468e7d6b6547a356ca70c313b73a700c72e622acf49ddb23004a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d021d7cc6e468e7d6b6547a356ca70c313b73a700c72e622acf49ddb23004a", kill_on_drop: false }`
[INFO] [stdout] c8d021d7cc6e468e7d6b6547a356ca70c313b73a700c72e622acf49ddb23004a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b7146bc703b77224e3418cf57696972b29eb9d5f359dd35fea72aa30f98e2cc7
[INFO] running `Command { std: "docker" "start" "-a" "b7146bc703b77224e3418cf57696972b29eb9d5f359dd35fea72aa30f98e2cc7", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes-ringbuffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "b7146bc703b77224e3418cf57696972b29eb9d5f359dd35fea72aa30f98e2cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7146bc703b77224e3418cf57696972b29eb9d5f359dd35fea72aa30f98e2cc7", kill_on_drop: false }`
[INFO] [stdout] b7146bc703b77224e3418cf57696972b29eb9d5f359dd35fea72aa30f98e2cc7
