[INFO] fetching crate composable-allocators 0.2.6...
[INFO] testing composable-allocators-0.2.6 against 1.69.0 for beta-1.70-1
[INFO] extracting crate composable-allocators 0.2.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate composable-allocators 0.2.6 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate composable-allocators 0.2.6
[INFO] finished tweaking crates.io crate composable-allocators 0.2.6
[INFO] tweaked toml for crates.io crate composable-allocators 0.2.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ae6c7e14e84a9600ea289e513a86960a1365196a533fb595faf43116209ea29
[INFO] running `Command { std: "docker" "start" "-a" "3ae6c7e14e84a9600ea289e513a86960a1365196a533fb595faf43116209ea29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ae6c7e14e84a9600ea289e513a86960a1365196a533fb595faf43116209ea29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae6c7e14e84a9600ea289e513a86960a1365196a533fb595faf43116209ea29", kill_on_drop: false }`
[INFO] [stdout] 3ae6c7e14e84a9600ea289e513a86960a1365196a533fb595faf43116209ea29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42c519af94d900223218a4816978fc327582452f57e412d94ff359e541eeb97c
[INFO] running `Command { std: "docker" "start" "-a" "42c519af94d900223218a4816978fc327582452f57e412d94ff359e541eeb97c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling composable-allocators v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(const_mut_refs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(const_trait_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(raw_ref_op)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(slice_ptr_get)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(slice_ptr_len)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(strict_provenance)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(allocator_api)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(slice_ptr_get)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(slice_ptr_len)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]   --> src/limited_up_to.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 Ok(unsafe { NonNull::slice_from_raw_parts(NonNull::new_unchecked(block.as_mut_ptr()), len) })
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/limited_up_to.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 Ok(unsafe { NonNull::slice_from_raw_parts(NonNull::new_unchecked(block.as_mut_ptr()), len) })
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/limited_up_to.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 Ok(NonNull::slice_from_raw_parts(NonNull::new_unchecked(block.as_mut_ptr()), len))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/limited_up_to.rs:147:20
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 Ok(NonNull::slice_from_raw_parts(NonNull::new_unchecked(block.as_mut_ptr()), len))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/limited_up_to.rs:165:20
[INFO] [stdout]     |
[INFO] [stdout] 165 |                 Ok(NonNull::slice_from_raw_parts(NonNull::new_unchecked(block.as_mut_ptr()), len))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]   --> src/posix.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |         Ok(NonNull::slice_from_raw_parts(ptr, layout.size()))
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]   --> src/posix.rs:65:16
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Ok(NonNull::slice_from_raw_parts(ptr, new_layout.size()))
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]   --> src/posix.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Ok(NonNull::slice_from_raw_parts(ptr, new_layout.size()))
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/stacked.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |         Ok(NonNull::slice_from_raw_parts(ptr, new_layout.size()))
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/stacked.rs:188:19
[INFO] [stdout]     |
[INFO] [stdout] 188 |         let res = NonNull::slice_from_raw_parts(
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/stacked.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 234 |         Ok(NonNull::slice_from_raw_parts(ptr, size))
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/freelist.rs:240:16
[INFO] [stdout]     |
[INFO] [stdout] 240 |             Ok(NonNull::slice_from_raw_parts(list, self.params.layout().size()))
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/freelist.rs:254:23
[INFO] [stdout]     |
[INFO] [stdout] 254 |             let ptr = NonNull::slice_from_raw_parts(list, self.params.layout().size());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'nonnull_slice_from_raw_parts'
[INFO] [stdout]    --> src/freelist.rs:299:27
[INFO] [stdout]     |
[INFO] [stdout] 299 |                 return Ok(NonNull::slice_from_raw_parts(ptr, self.params.layout().size()));
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #71941 <https://github.com/rust-lang/rust/issues/71941> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 27 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `composable-allocators` due to 28 previous errors
[INFO] running `Command { std: "docker" "inspect" "42c519af94d900223218a4816978fc327582452f57e412d94ff359e541eeb97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c519af94d900223218a4816978fc327582452f57e412d94ff359e541eeb97c", kill_on_drop: false }`
[INFO] [stdout] 42c519af94d900223218a4816978fc327582452f57e412d94ff359e541eeb97c
