[INFO] fetching crate compact-rc 0.5.5...
[INFO] testing compact-rc-0.5.5 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate compact-rc 0.5.5 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate compact-rc 0.5.5 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d12154bef5cee74cfbe6a9109b01ee70f946ac6cfecafce42361cef0717cb78d
[INFO] running `Command { std: "docker" "start" "-a" "d12154bef5cee74cfbe6a9109b01ee70f946ac6cfecafce42361cef0717cb78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d12154bef5cee74cfbe6a9109b01ee70f946ac6cfecafce42361cef0717cb78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12154bef5cee74cfbe6a9109b01ee70f946ac6cfecafce42361cef0717cb78d", kill_on_drop: false }`
[INFO] [stdout] d12154bef5cee74cfbe6a9109b01ee70f946ac6cfecafce42361cef0717cb78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] d14fcf69f019d7401d7b0c1cd48dc6c7d8b57b07548e9ab31d5920ab69af007f
[INFO] running `Command { std: "docker" "start" "-a" "d14fcf69f019d7401d7b0c1cd48dc6c7d8b57b07548e9ab31d5920ab69af007f", 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/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/slice/mod.rs:116:5
[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/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/slice/mod.rs:680:5
[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" "d14fcf69f019d7401d7b0c1cd48dc6c7d8b57b07548e9ab31d5920ab69af007f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14fcf69f019d7401d7b0c1cd48dc6c7d8b57b07548e9ab31d5920ab69af007f", kill_on_drop: false }`
[INFO] [stdout] d14fcf69f019d7401d7b0c1cd48dc6c7d8b57b07548e9ab31d5920ab69af007f