[INFO] fetching crate densevec 0.3.5...
[INFO] checking densevec-0.3.5 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate densevec 0.3.5 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate densevec 0.3.5 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate densevec 0.3.5
[INFO] finished tweaking crates.io crate densevec 0.3.5
[INFO] tweaked toml for crates.io crate densevec 0.3.5 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36174c5dbc8824356825d84217b508350ae72af369ddd9d003d2e71755b746bb
[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" "36174c5dbc8824356825d84217b508350ae72af369ddd9d003d2e71755b746bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36174c5dbc8824356825d84217b508350ae72af369ddd9d003d2e71755b746bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36174c5dbc8824356825d84217b508350ae72af369ddd9d003d2e71755b746bb", kill_on_drop: false }`
[INFO] [stdout] 36174c5dbc8824356825d84217b508350ae72af369ddd9d003d2e71755b746bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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] 23c54a61dee0ef0b2ef5c514093fb30c0bb556ea38730ef26167d6f78136ba62
[INFO] running `Command { std: "docker" "start" "-a" "23c54a61dee0ef0b2ef5c514093fb30c0bb556ea38730ef26167d6f78136ba62", kill_on_drop: false }`
[INFO] [stderr]     Checking densevec v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:515:82
[INFO] [stdout]     |
[INFO] [stdout] 515 |                 let t = mem::replace(self.storage.storage.get_unchecked_mut(id), mem::uninitialized());
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:515:82
[INFO] [stdout]     |
[INFO] [stdout] 515 |                 let t = mem::replace(self.storage.storage.get_unchecked_mut(id), mem::uninitialized());
[INFO] [stdout]     |                                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `keys_capacity`
[INFO] [stdout]    --> src/lib.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn keys_capacity(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/lib.rs:1370:19
[INFO] [stdout]      |
[INFO] [stdout] 1370 |             .map(|i| a.insert_key_gen(0))
[INFO] [stdout]      |                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `keys_capacity`
[INFO] [stdout]    --> src/lib.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn keys_capacity(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "23c54a61dee0ef0b2ef5c514093fb30c0bb556ea38730ef26167d6f78136ba62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c54a61dee0ef0b2ef5c514093fb30c0bb556ea38730ef26167d6f78136ba62", kill_on_drop: false }`
[INFO] [stdout] 23c54a61dee0ef0b2ef5c514093fb30c0bb556ea38730ef26167d6f78136ba62