[INFO] fetching crate unsafe_unions 0.0.2...
[INFO] checking unsafe_unions-0.0.2 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate unsafe_unions 0.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate unsafe_unions 0.0.2 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsafe_unions 0.0.2
[INFO] finished tweaking crates.io crate unsafe_unions 0.0.2
[INFO] tweaked toml for crates.io crate unsafe_unions 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69891c3c1a8c70b06907dee9f855ac5d3197b33f0e13e64329f1b980a1c03d61
[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" "69891c3c1a8c70b06907dee9f855ac5d3197b33f0e13e64329f1b980a1c03d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69891c3c1a8c70b06907dee9f855ac5d3197b33f0e13e64329f1b980a1c03d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69891c3c1a8c70b06907dee9f855ac5d3197b33f0e13e64329f1b980a1c03d61", kill_on_drop: false }`
[INFO] [stdout] 69891c3c1a8c70b06907dee9f855ac5d3197b33f0e13e64329f1b980a1c03d61
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] e1fb6b4d2e971de13c9b9b16c11874109930d7c0e48ee86568bea1c6f5d68af0
[INFO] running `Command { std: "docker" "start" "-a" "e1fb6b4d2e971de13c9b9b16c11874109930d7c0e48ee86568bea1c6f5d68af0", kill_on_drop: false }`
[INFO] [stderr]     Checking unsafe_unions v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> examples/untagged_value.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / unsafe_unions!{
[INFO] [stdout] 5  | |     union UntaggedValue: [u64; 3] {
[INFO] [stdout] 6  | |         nil: (),
[INFO] [stdout] 7  | |         boolean: bool,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     }
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "e1fb6b4d2e971de13c9b9b16c11874109930d7c0e48ee86568bea1c6f5d68af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fb6b4d2e971de13c9b9b16c11874109930d7c0e48ee86568bea1c6f5d68af0", kill_on_drop: false }`
[INFO] [stdout] e1fb6b4d2e971de13c9b9b16c11874109930d7c0e48ee86568bea1c6f5d68af0