[INFO] fetching crate compact-rc 0.5.5...
[INFO] testing compact-rc-0.5.5 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate compact-rc 0.5.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate compact-rc 0.5.5
[INFO] finished tweaking crates.io crate compact-rc 0.5.5
[INFO] tweaked toml for crates.io crate compact-rc 0.5.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate compact-rc 0.5.5 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dropcount v0.1.2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3de168d8da37de51f70e6b1130070a6d5257f7077003b4d52d522ca1dd0cbdf7
[INFO] running `Command { std: "docker" "start" "-a" "3de168d8da37de51f70e6b1130070a6d5257f7077003b4d52d522ca1dd0cbdf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de168d8da37de51f70e6b1130070a6d5257f7077003b4d52d522ca1dd0cbdf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de168d8da37de51f70e6b1130070a6d5257f7077003b4d52d522ca1dd0cbdf7", kill_on_drop: false }`
[INFO] [stdout] 3de168d8da37de51f70e6b1130070a6d5257f7077003b4d52d522ca1dd0cbdf7
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0054826176b702bda60f7abde3b93da5ba720398d06958cb467e35ba9b2790dc
[INFO] running `Command { std: "docker" "start" "-a" "0054826176b702bda60f7abde3b93da5ba720398d06958cb467e35ba9b2790dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling compact-rc v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/base.rs:443:21
[INFO] [stdout]     |
[INFO] [stdout] 443 |             assume!((*pvalue).len() == v.len());
[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/base.rs:443:21
[INFO] [stdout]     |
[INFO] [stdout] 443 |             assume!((*pvalue).len() == v.len());
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]    --> /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/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] 443 |             assume!((&(*pvalue)).len() == v.len());
[INFO] [stdout]     |                     ++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/base.rs:445:18
[INFO] [stdout]     |
[INFO] [stdout] 445 |                 *(*pvalue).get_unchecked_mut(i) = MaybeUninit::new(v.get_unchecked(i).clone());
[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: `&mut [MaybeUninit<T>]`
[INFO] [stdout]    --> src/base.rs:445:18
[INFO] [stdout]     |
[INFO] [stdout] 445 |                 *(*pvalue).get_unchecked_mut(i) = MaybeUninit::new(v.get_unchecked(i).clone());
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked_mut` require a reference
[INFO] [stdout]    --> /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/slice/mod.rs:682:4
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 445 |                 *(&mut (*pvalue)).get_unchecked_mut(i) = MaybeUninit::new(v.get_unchecked(i).clone());
[INFO] [stdout]     |                  +++++          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compact-rc` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0054826176b702bda60f7abde3b93da5ba720398d06958cb467e35ba9b2790dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0054826176b702bda60f7abde3b93da5ba720398d06958cb467e35ba9b2790dc", kill_on_drop: false }`
[INFO] [stdout] 0054826176b702bda60f7abde3b93da5ba720398d06958cb467e35ba9b2790dc