[INFO] fetching crate io-uring 0.5.0...
[INFO] checking io-uring-0.5.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate io-uring 0.5.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate io-uring 0.5.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-uring 0.5.0
[INFO] finished tweaking crates.io crate io-uring 0.5.0
[INFO] tweaked toml for crates.io crate io-uring 0.5.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate io-uring 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd53eaf97ade288c0b40e9b9d93d44d28a73995d8a1ddafc71b1ce081129ba43
[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" "cd53eaf97ade288c0b40e9b9d93d44d28a73995d8a1ddafc71b1ce081129ba43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd53eaf97ade288c0b40e9b9d93d44d28a73995d8a1ddafc71b1ce081129ba43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd53eaf97ade288c0b40e9b9d93d44d28a73995d8a1ddafc71b1ce081129ba43", kill_on_drop: false }`
[INFO] [stdout] cd53eaf97ade288c0b40e9b9d93d44d28a73995d8a1ddafc71b1ce081129ba43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c030b2f2be147734bcbcc239fd26b105fdb4a2d707588cfb1c1f4e708d179c
[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" "f1c030b2f2be147734bcbcc239fd26b105fdb4a2d707588cfb1c1f4e708d179c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling io-uring v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.05s
[INFO] running `Command { std: "docker" "inspect" "f1c030b2f2be147734bcbcc239fd26b105fdb4a2d707588cfb1c1f4e708d179c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c030b2f2be147734bcbcc239fd26b105fdb4a2d707588cfb1c1f4e708d179c", kill_on_drop: false }`
[INFO] [stdout] f1c030b2f2be147734bcbcc239fd26b105fdb4a2d707588cfb1c1f4e708d179c