[INFO] fetching crate pi_slab 0.1.0...
[INFO] testing pi_slab-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pi_slab 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate pi_slab 0.1.0
[INFO] finished tweaking crates.io crate pi_slab 0.1.0
[INFO] tweaked toml for crates.io crate pi_slab 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_slab 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0429173bebf2ab1cf57671d136c1c687e2d1d97aab04340f50c021f58342a52
[INFO] running `Command { std: "docker" "start" "-a" "f0429173bebf2ab1cf57671d136c1c687e2d1d97aab04340f50c021f58342a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0429173bebf2ab1cf57671d136c1c687e2d1d97aab04340f50c021f58342a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0429173bebf2ab1cf57671d136c1c687e2d1d97aab04340f50c021f58342a52", kill_on_drop: false }`
[INFO] [stdout] f0429173bebf2ab1cf57671d136c1c687e2d1d97aab04340f50c021f58342a52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bda4f1c23e104081cf3df5e5ee7c3d3f1c6d8c80f488325d3088a54d09609d7
[INFO] running `Command { std: "docker" "start" "-a" "1bda4f1c23e104081cf3df5e5ee7c3d3f1c6d8c80f488325d3088a54d09609d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_slab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^------------^^^^^^^
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      this raw pointer has type `*mut Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec<T>`
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (&mut (*self.entries))[curr]} ));
[INFO] [stdout]     |                                                    +++++                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "1bda4f1c23e104081cf3df5e5ee7c3d3f1c6d8c80f488325d3088a54d09609d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bda4f1c23e104081cf3df5e5ee7c3d3f1c6d8c80f488325d3088a54d09609d7", kill_on_drop: false }`
[INFO] [stdout] 1bda4f1c23e104081cf3df5e5ee7c3d3f1c6d8c80f488325d3088a54d09609d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3233ccdf9053d41e0ba7e3ddf8ae7e16cefcf2dc90466b8d4ed6d1966ae51ace
[INFO] running `Command { std: "docker" "start" "-a" "3233ccdf9053d41e0ba7e3ddf8ae7e16cefcf2dc90466b8d4ed6d1966ae51ace", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_slab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^------------^^^^^^^
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      this raw pointer has type `*mut Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec<T>`
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (&mut (*self.entries))[curr]} ));
[INFO] [stdout]     |                                                    +++++                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^------------^^^^^^^
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      this raw pointer has type `*mut Vec<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec<T>`
[INFO] [stdout]    --> src/lib.rs:504:52
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 return Some((curr + 1, unsafe{&mut (&mut (*self.entries))[curr]} ));
[INFO] [stdout]     |                                                    +++++                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "3233ccdf9053d41e0ba7e3ddf8ae7e16cefcf2dc90466b8d4ed6d1966ae51ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3233ccdf9053d41e0ba7e3ddf8ae7e16cefcf2dc90466b8d4ed6d1966ae51ace", kill_on_drop: false }`
[INFO] [stdout] 3233ccdf9053d41e0ba7e3ddf8ae7e16cefcf2dc90466b8d4ed6d1966ae51ace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 997d4aba76c83488caff07843c3323945ca564c41409a22bb2be30e2a06d950e
[INFO] running `Command { std: "docker" "start" "-a" "997d4aba76c83488caff07843c3323945ca564c41409a22bb2be30e2a06d950e", kill_on_drop: false }`
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/lib.rs:504:52
[INFO] [stderr]     |
[INFO] [stderr] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stderr]     |                                                    ^^------------^^^^^^^
[INFO] [stderr]     |                                                      |
[INFO] [stderr]     |                                                      this raw pointer has type `*mut Vec<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&mut Vec<T>`
[INFO] [stderr]    --> src/lib.rs:504:52
[INFO] [stderr]     |
[INFO] [stderr] 504 |                 return Some((curr + 1, unsafe{&mut (*self.entries)[curr]} ));
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 504 |                 return Some((curr + 1, unsafe{&mut (&mut (*self.entries))[curr]} ));
[INFO] [stderr]     |                                                    +++++                +
[INFO] [stderr] 
[INFO] [stderr] warning: `pi_slab` (lib) generated 1 warning
[INFO] [stderr] warning: `pi_slab` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pi_slab-cb2452b088229f43)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test ... ok
[INFO] [stdout] test test_alloc ... ok
[INFO] [stderr]    Doc-tests pi_slab
[INFO] [stdout] test test_eff ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "997d4aba76c83488caff07843c3323945ca564c41409a22bb2be30e2a06d950e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997d4aba76c83488caff07843c3323945ca564c41409a22bb2be30e2a06d950e", kill_on_drop: false }`
[INFO] [stdout] 997d4aba76c83488caff07843c3323945ca564c41409a22bb2be30e2a06d950e
