[INFO] fetching crate cl-generic-vec 0.4.0...
[INFO] testing cl-generic-vec-0.4.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate cl-generic-vec 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate cl-generic-vec 0.4.0
[INFO] finished tweaking crates.io crate cl-generic-vec 0.4.0
[INFO] tweaked toml for crates.io crate cl-generic-vec 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cl-generic-vec 0.4.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cad1a779fe495a4662c950943539bcdbb76cae0fe1bab6c6ce58b706de99fc2a
[INFO] running `Command { std: "docker" "start" "-a" "cad1a779fe495a4662c950943539bcdbb76cae0fe1bab6c6ce58b706de99fc2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cad1a779fe495a4662c950943539bcdbb76cae0fe1bab6c6ce58b706de99fc2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cad1a779fe495a4662c950943539bcdbb76cae0fe1bab6c6ce58b706de99fc2a", kill_on_drop: false }`
[INFO] [stdout] cad1a779fe495a4662c950943539bcdbb76cae0fe1bab6c6ce58b706de99fc2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf60142e76bc59bbdece6973262dde602d48d69a61a80210b1f32b7c703a4dd8
[INFO] running `Command { std: "docker" "start" "-a" "bf60142e76bc59bbdece6973262dde602d48d69a61a80210b1f32b7c703a4dd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cl-generic-vec v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/iter.rs:41:30
[INFO] [stdout]    |
[INFO] [stdout] 41 |         iter.for_each(|item| drop(self.push(item)));
[INFO] [stdout]    |                              ^^^^^---------------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&mut <S as Storage>::Item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/raw/heap/stable.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let capacity = (*ptr).len(); // probably not great but ptr_metadata is still nightly
[INFO] [stdout]    |                        ^^---^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this raw pointer has type `*mut [MaybeUninit<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: `&[MaybeUninit<T>]`
[INFO] [stdout]   --> src/raw/heap/stable.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let capacity = (*ptr).len(); // probably not great but ptr_metadata is still nightly
[INFO] [stdout]    |                        ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/slice/mod.rs:114:4
[INFO] [stdout]    = note: `#[deny(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] 34 |         let capacity = (&(*ptr)).len(); // probably not great but ptr_metadata is still nightly
[INFO] [stdout]    |                        ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cl-generic-vec` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "bf60142e76bc59bbdece6973262dde602d48d69a61a80210b1f32b7c703a4dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf60142e76bc59bbdece6973262dde602d48d69a61a80210b1f32b7c703a4dd8", kill_on_drop: false }`
[INFO] [stdout] bf60142e76bc59bbdece6973262dde602d48d69a61a80210b1f32b7c703a4dd8
