[INFO] crate densevec 0.3.3 is already in cache
[INFO] checking densevec-0.3.3 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate densevec 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate densevec 0.3.3 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate densevec 0.3.3
[INFO] finished tweaking crates.io crate densevec 0.3.3
[INFO] tweaked toml for crates.io crate densevec 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5faadefb487066297b1d1d2f3ba8f0640aee24f4dd6e8e505a6e2da048ea2d57
[INFO] running `"docker" "start" "-a" "5faadefb487066297b1d1d2f3ba8f0640aee24f4dd6e8e505a6e2da048ea2d57"`
[INFO] [stderr]     Checking densevec v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:458:82
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 let t = mem::replace(self.storage.storage.get_unchecked_mut(id), mem::uninitialized());
[INFO] [stderr]     |                                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:458:82
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 let t = mem::replace(self.storage.storage.get_unchecked_mut(id), mem::uninitialized());
[INFO] [stderr]     |                                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]     --> src/lib.rs:1300:19
[INFO] [stderr]      |
[INFO] [stderr] 1300 |             .map(|i| a.insert_key_gen(0))
[INFO] [stderr]      |                   ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "5faadefb487066297b1d1d2f3ba8f0640aee24f4dd6e8e505a6e2da048ea2d57"`
[INFO] running `"docker" "rm" "-f" "5faadefb487066297b1d1d2f3ba8f0640aee24f4dd6e8e505a6e2da048ea2d57"`
[INFO] [stdout] 5faadefb487066297b1d1d2f3ba8f0640aee24f4dd6e8e505a6e2da048ea2d57