[INFO] fetching crate allocator-fallback 0.1.8...
[INFO] testing allocator-fallback-0.1.8 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate allocator-fallback 0.1.8 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate allocator-fallback 0.1.8
[INFO] finished tweaking crates.io crate allocator-fallback 0.1.8
[INFO] tweaked toml for crates.io crate allocator-fallback 0.1.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate allocator-fallback 0.1.8 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] 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bdf68eb4de9183a781ab2b1ed7459bb47fbc9a29a7f826d70538025468c7dd8a
[INFO] running `Command { std: "docker" "start" "-a" "bdf68eb4de9183a781ab2b1ed7459bb47fbc9a29a7f826d70538025468c7dd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdf68eb4de9183a781ab2b1ed7459bb47fbc9a29a7f826d70538025468c7dd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf68eb4de9183a781ab2b1ed7459bb47fbc9a29a7f826d70538025468c7dd8a", kill_on_drop: false }`
[INFO] [stdout] bdf68eb4de9183a781ab2b1ed7459bb47fbc9a29a7f826d70538025468c7dd8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6a54205ee27d1df08bd91af5e024c7360b2ee4c65c84cefeab611c95d4688179
[INFO] running `Command { std: "docker" "start" "-a" "6a54205ee27d1df08bd91af5e024c7360b2ee4c65c84cefeab611c95d4688179", kill_on_drop: false }`
[INFO] [stderr]    Compiling allocator-fallback v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_allocator_api`
[INFO] [stdout]    --> src/lib.rs:136:42
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub const HAS_ALLOCATOR_API: bool = cfg!(has_allocator_api);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_allocator_api)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_allocator_api)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` 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/fallback.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let len = (*(ptr.as_ptr() as *mut [MaybeUninit<u8>])).len();
[INFO] [stdout]    |                       ^^----------------------------------------^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this raw pointer has type `*mut [MaybeUninit<u8>]`
[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<u8>]`
[INFO] [stdout]   --> src/fallback.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let len = (*(ptr.as_ptr() as *mut [MaybeUninit<u8>])).len();
[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] 62 |             let len = (&(*(ptr.as_ptr() as *mut [MaybeUninit<u8>]))).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/fallback.rs:105:23
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let len = (*(new.as_ptr() as *mut [MaybeUninit<u8>])).len();
[INFO] [stdout]     |                       ^^----------------------------------------^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         this raw pointer has type `*mut [MaybeUninit<u8>]`
[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<u8>]`
[INFO] [stdout]    --> src/fallback.rs:105:23
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let len = (*(new.as_ptr() as *mut [MaybeUninit<u8>])).len();
[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] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let len = (&(*(new.as_ptr() as *mut [MaybeUninit<u8>]))).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/fallback.rs:132:23
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let len = (*(new.as_ptr() as *mut [MaybeUninit<u8>])).len();
[INFO] [stdout]     |                       ^^----------------------------------------^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         this raw pointer has type `*mut [MaybeUninit<u8>]`
[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<u8>]`
[INFO] [stdout]    --> src/fallback.rs:132:23
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let len = (*(new.as_ptr() as *mut [MaybeUninit<u8>])).len();
[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] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let len = (&(*(new.as_ptr() as *mut [MaybeUninit<u8>]))).len();
[INFO] [stdout]     |                       ++                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `allocator-fallback` (lib) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6a54205ee27d1df08bd91af5e024c7360b2ee4c65c84cefeab611c95d4688179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a54205ee27d1df08bd91af5e024c7360b2ee4c65c84cefeab611c95d4688179", kill_on_drop: false }`
[INFO] [stdout] 6a54205ee27d1df08bd91af5e024c7360b2ee4c65c84cefeab611c95d4688179
