[INFO] fetching crate wasmer-engine 1.0.0-alpha5...
[INFO] checking wasmer-engine-1.0.0-alpha5 against beta for pr-78714
[INFO] extracting crate wasmer-engine 1.0.0-alpha5 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wasmer-engine 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-engine 1.0.0-alpha5
[INFO] finished tweaking crates.io crate wasmer-engine 1.0.0-alpha5
[INFO] tweaked toml for crates.io crate wasmer-engine 1.0.0-alpha5 written to /workspace/builds/worker-12/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-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" "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] f280f2318e9f20751d57f7b304406e889e2fa5990f3624bbf5d671cddc870f42
[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" "f280f2318e9f20751d57f7b304406e889e2fa5990f3624bbf5d671cddc870f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f280f2318e9f20751d57f7b304406e889e2fa5990f3624bbf5d671cddc870f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f280f2318e9f20751d57f7b304406e889e2fa5990f3624bbf5d671cddc870f42", kill_on_drop: false }`
[INFO] [stdout] f280f2318e9f20751d57f7b304406e889e2fa5990f3624bbf5d671cddc870f42
[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=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] 062fac8343ef31a718d0ce5e95a40b4d40c70203e11c86e9d4fc4a0e4bf2f34e
[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" "062fac8343ef31a718d0ce5e95a40b4d40c70203e11c86e9d4fc4a0e4bf2f34e", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha5
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking enumset v1.0.1
[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 wasmer-types v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.59s
[INFO] running `Command { std: "docker" "inspect" "062fac8343ef31a718d0ce5e95a40b4d40c70203e11c86e9d4fc4a0e4bf2f34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062fac8343ef31a718d0ce5e95a40b4d40c70203e11c86e9d4fc4a0e4bf2f34e", kill_on_drop: false }`
[INFO] [stdout] 062fac8343ef31a718d0ce5e95a40b4d40c70203e11c86e9d4fc4a0e4bf2f34e