[INFO] fetching crate minimum 0.1.0...
[INFO] checking minimum-0.1.0 against beta for pr-78714
[INFO] extracting crate minimum 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate minimum 0.1.0 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 minimum 0.1.0
[INFO] finished tweaking crates.io crate minimum 0.1.0
[INFO] tweaked toml for crates.io crate minimum 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ebbdd14cde6cd5cd231c5fcf492b88fffbdb971ac3eab92cb3456c6073d59b3a
[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" "ebbdd14cde6cd5cd231c5fcf492b88fffbdb971ac3eab92cb3456c6073d59b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebbdd14cde6cd5cd231c5fcf492b88fffbdb971ac3eab92cb3456c6073d59b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebbdd14cde6cd5cd231c5fcf492b88fffbdb971ac3eab92cb3456c6073d59b3a", kill_on_drop: false }`
[INFO] [stdout] ebbdd14cde6cd5cd231c5fcf492b88fffbdb971ac3eab92cb3456c6073d59b3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ac4b1d023d89707a609b4cbf0edfa19f3511abc3ddef4be1a7271ff9f54cee8c
[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" "ac4b1d023d89707a609b4cbf0edfa19f3511abc3ddef4be1a7271ff9f54cee8c", kill_on_drop: false }`
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking minimum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> src/component/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.get(entity).is_some();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> src/component/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.get(entity).is_some();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/hello_world.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |     type RequiredResources = (Write<PhysicsSystem>);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "ac4b1d023d89707a609b4cbf0edfa19f3511abc3ddef4be1a7271ff9f54cee8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4b1d023d89707a609b4cbf0edfa19f3511abc3ddef4be1a7271ff9f54cee8c", kill_on_drop: false }`
[INFO] [stdout] ac4b1d023d89707a609b4cbf0edfa19f3511abc3ddef4be1a7271ff9f54cee8c