[INFO] fetching crate stakker_mio 0.1.3...
[INFO] checking stakker_mio-0.1.3 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate stakker_mio 0.1.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate stakker_mio 0.1.3 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker_mio 0.1.3
[INFO] finished tweaking crates.io crate stakker_mio 0.1.3
[INFO] tweaked toml for crates.io crate stakker_mio 0.1.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4df2d67c5e1e8af33193db7c078b7614b5c06a19c09551b0f6d9a703e83a0e47
[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" "4df2d67c5e1e8af33193db7c078b7614b5c06a19c09551b0f6d9a703e83a0e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4df2d67c5e1e8af33193db7c078b7614b5c06a19c09551b0f6d9a703e83a0e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df2d67c5e1e8af33193db7c078b7614b5c06a19c09551b0f6d9a703e83a0e47", kill_on_drop: false }`
[INFO] [stdout] 4df2d67c5e1e8af33193db7c078b7614b5c06a19c09551b0f6d9a703e83a0e47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c17a1ca55d4dc2cdcd8238e9bd68516e0774e747309bd82d699c7af10a4d2e6a
[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" "c17a1ca55d4dc2cdcd8238e9bd68516e0774e747309bd82d699c7af10a4d2e6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking qcell v0.4.1
[INFO] [stderr]     Checking stakker v0.1.3
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking stakker_mio v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "c17a1ca55d4dc2cdcd8238e9bd68516e0774e747309bd82d699c7af10a4d2e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c17a1ca55d4dc2cdcd8238e9bd68516e0774e747309bd82d699c7af10a4d2e6a", kill_on_drop: false }`
[INFO] [stdout] c17a1ca55d4dc2cdcd8238e9bd68516e0774e747309bd82d699c7af10a4d2e6a