[INFO] fetching crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5...
[INFO] checking wasmer-wasi-experimental-io-devices-1.0.0-alpha5 against beta for pr-78714
[INFO] extracting crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5
[INFO] finished tweaking crates.io crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5
[INFO] tweaked toml for crates.io crate wasmer-wasi-experimental-io-devices 1.0.0-alpha5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ca786ae9e8cde805380bdcf8679bbaa9f4dfca83183dd930b796f66844209c2
[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" "4ca786ae9e8cde805380bdcf8679bbaa9f4dfca83183dd930b796f66844209c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ca786ae9e8cde805380bdcf8679bbaa9f4dfca83183dd930b796f66844209c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca786ae9e8cde805380bdcf8679bbaa9f4dfca83183dd930b796f66844209c2", kill_on_drop: false }`
[INFO] [stdout] 4ca786ae9e8cde805380bdcf8679bbaa9f4dfca83183dd930b796f66844209c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96ea7ab90efe94187693bf6a693784c3f0591272b5d8ddf959b8abb3cceb9dc0
[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" "96ea7ab90efe94187693bf6a693784c3f0591272b5d8ddf959b8abb3cceb9dc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking ref_thread_local v0.0.0
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha5
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling minifb v0.19.1
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling typetag-impl v0.1.6
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]     Checking xkb v0.2.1
[INFO] [stderr]     Checking inventory v0.1.9
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking enumset v1.0.1
[INFO] [stderr]     Checking wayland-cursor v0.27.0
[INFO] [stderr]     Checking cranelift-entity v0.67.0
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking wasmer-types v1.0.0-alpha5
[INFO] [stderr]     Checking typetag v0.1.6
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-wasi v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-wasi-experimental-io-devices v1.0.0-alpha5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "96ea7ab90efe94187693bf6a693784c3f0591272b5d8ddf959b8abb3cceb9dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ea7ab90efe94187693bf6a693784c3f0591272b5d8ddf959b8abb3cceb9dc0", kill_on_drop: false }`
[INFO] [stdout] 96ea7ab90efe94187693bf6a693784c3f0591272b5d8ddf959b8abb3cceb9dc0