[INFO] fetching crate async-os 0.1.0...
[INFO] checking async-os-0.1.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate async-os 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate async-os 0.1.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-os 0.1.0
[INFO] finished tweaking crates.io crate async-os 0.1.0
[INFO] tweaked toml for crates.io crate async-os 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", 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] e3bff72276e8bec7a2085fe5f573b7bb1ae18c6e6692368f2dbabb9b511d390d
[INFO] running `Command { std: "docker" "start" "-a" "e3bff72276e8bec7a2085fe5f573b7bb1ae18c6e6692368f2dbabb9b511d390d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3bff72276e8bec7a2085fe5f573b7bb1ae18c6e6692368f2dbabb9b511d390d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3bff72276e8bec7a2085fe5f573b7bb1ae18c6e6692368f2dbabb9b511d390d", kill_on_drop: false }`
[INFO] [stdout] e3bff72276e8bec7a2085fe5f573b7bb1ae18c6e6692368f2dbabb9b511d390d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] a59c681c199ea8caf30d1954f2dc97aab1230fd9db6c2a9e312aa83c75def34b
[INFO] running `Command { std: "docker" "start" "-a" "a59c681c199ea8caf30d1954f2dc97aab1230fd9db6c2a9e312aa83c75def34b", kill_on_drop: false }`
[INFO] [stderr]     Checking async-os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "a59c681c199ea8caf30d1954f2dc97aab1230fd9db6c2a9e312aa83c75def34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a59c681c199ea8caf30d1954f2dc97aab1230fd9db6c2a9e312aa83c75def34b", kill_on_drop: false }`
[INFO] [stdout] a59c681c199ea8caf30d1954f2dc97aab1230fd9db6c2a9e312aa83c75def34b