[INFO] fetching crate holochain_wasmer_guest 0.0.47...
[INFO] checking holochain_wasmer_guest-0.0.47 against beta for pr-78714
[INFO] extracting crate holochain_wasmer_guest 0.0.47 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate holochain_wasmer_guest 0.0.47 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 holochain_wasmer_guest 0.0.47
[INFO] finished tweaking crates.io crate holochain_wasmer_guest 0.0.47
[INFO] tweaked toml for crates.io crate holochain_wasmer_guest 0.0.47 written to /workspace/builds/worker-3/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 33c1ef82af70a301022b9a7cbeee962d27fe13f0089dc002af6de88dbc887d80
[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" "33c1ef82af70a301022b9a7cbeee962d27fe13f0089dc002af6de88dbc887d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33c1ef82af70a301022b9a7cbeee962d27fe13f0089dc002af6de88dbc887d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c1ef82af70a301022b9a7cbeee962d27fe13f0089dc002af6de88dbc887d80", kill_on_drop: false }`
[INFO] [stdout] 33c1ef82af70a301022b9a7cbeee962d27fe13f0089dc002af6de88dbc887d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 68f470c8a5f67832c58f54cb2375b9e2747ea7c81a2df3b569251cfff46368f2
[INFO] running `Command { std: "docker" "start" "-a" "68f470c8a5f67832c58f54cb2375b9e2747ea7c81a2df3b569251cfff46368f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]    Compiling holochain_serialized_bytes_derive v0.0.45
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]     Checking holochain_serialized_bytes v0.0.45
[INFO] [stderr]     Checking holochain_wasmer_common v0.0.47
[INFO] [stderr]     Checking holochain_wasmer_guest v0.0.47 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/allocation.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     mem::ManuallyDrop::new(dummy);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/allocation.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     mem::ManuallyDrop::new(v);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/allocation.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     mem::ManuallyDrop::new(dummy);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/allocation.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     mem::ManuallyDrop::new(v);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.25s
[INFO] running `Command { std: "docker" "inspect" "68f470c8a5f67832c58f54cb2375b9e2747ea7c81a2df3b569251cfff46368f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f470c8a5f67832c58f54cb2375b9e2747ea7c81a2df3b569251cfff46368f2", kill_on_drop: false }`
[INFO] [stdout] 68f470c8a5f67832c58f54cb2375b9e2747ea7c81a2df3b569251cfff46368f2