[INFO] fetching crate typed-arena 2.0.2...
[INFO] checking typed-arena-2.0.2 against master#dc8fe1f81c6cf13c0987944c525b2aa81625b5d0 for pr-133502-4
[INFO] extracting crate typed-arena 2.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate typed-arena 2.0.2 on toolchain dc8fe1f81c6cf13c0987944c525b2aa81625b5d0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate typed-arena 2.0.2
[INFO] finished tweaking crates.io crate typed-arena 2.0.2
[INFO] tweaked toml for crates.io crate typed-arena 2.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9c853b06cfd7bc24a423b0ae9bdbca5a8c44db9ff1a799c6ded9b6dce13f9c3
[INFO] running `Command { std: "docker" "start" "-a" "f9c853b06cfd7bc24a423b0ae9bdbca5a8c44db9ff1a799c6ded9b6dce13f9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c853b06cfd7bc24a423b0ae9bdbca5a8c44db9ff1a799c6ded9b6dce13f9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c853b06cfd7bc24a423b0ae9bdbca5a8c44db9ff1a799c6ded9b6dce13f9c3", kill_on_drop: false }`
[INFO] [stdout] f9c853b06cfd7bc24a423b0ae9bdbca5a8c44db9ff1a799c6ded9b6dce13f9c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a0b770a3db5d148f9cb2f3d8a6651eb16372254e707a87bd3409d3f87c4a1bb
[INFO] running `Command { std: "docker" "start" "-a" "3a0b770a3db5d148f9cb2f3d8a6651eb16372254e707a87bd3409d3f87c4a1bb", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking typed-arena v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> benches/benches.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Small(usize);
[INFO] [stdout]   |        ----- ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Small` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> benches/benches.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Big([usize; 32]);
[INFO] [stdout]    |        --- ^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Big` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]   --> src/test.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Node<'a, 'b: 'a>(Option<&'a Node<'a, 'b>>, u32, DropTracker<'b>);
[INFO] [stdout]    |        ---- field in this struct                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/test.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         mem::drop(node);
[INFO] [stdout]    |         ^^^^^^^^^^----^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   argument has type `&Node<'_, '_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -         mem::drop(node);
[INFO] [stdout] 42 +         let _ = node;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "3a0b770a3db5d148f9cb2f3d8a6651eb16372254e707a87bd3409d3f87c4a1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0b770a3db5d148f9cb2f3d8a6651eb16372254e707a87bd3409d3f87c4a1bb", kill_on_drop: false }`
[INFO] [stdout] 3a0b770a3db5d148f9cb2f3d8a6651eb16372254e707a87bd3409d3f87c4a1bb