[INFO] fetching crate slab_allocator 0.3.5... [INFO] documenting slab_allocator-0.3.5 against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] extracting crate slab_allocator 0.3.5 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate slab_allocator 0.3.5 on toolchain beta-2020-08-29 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate slab_allocator 0.3.5 [INFO] finished tweaking crates.io crate slab_allocator 0.3.5 [INFO] tweaked toml for crates.io crate slab_allocator 0.3.5 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ec3d7675cca45801b19a7857cdd58ac5f9db6e3da071729da81fa2591c80420d [INFO] running `Command { std: "docker" "start" "-a" "ec3d7675cca45801b19a7857cdd58ac5f9db6e3da071729da81fa2591c80420d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec3d7675cca45801b19a7857cdd58ac5f9db6e3da071729da81fa2591c80420d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec3d7675cca45801b19a7857cdd58ac5f9db6e3da071729da81fa2591c80420d", kill_on_drop: false }` [INFO] [stdout] ec3d7675cca45801b19a7857cdd58ac5f9db6e3da071729da81fa2591c80420d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8665af71e3bf3d0f8a8cc0c93ac4263c98e2dc27ca2a8b78ade8afb0aaf7e724 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8665af71e3bf3d0f8a8cc0c93ac4263c98e2dc27ca2a8b78ade8afb0aaf7e724", kill_on_drop: false }` [INFO] [stderr] Checking spin v0.4.10 [INFO] [stderr] Checking linked_list_allocator v0.6.6 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:35 [INFO] [stdout] | [INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.6/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_fn)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.6/src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(allocator_api)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0053]: method `alloc` has an incompatible type for trait [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.6/src/lib.rs:133:5 [INFO] [stdout] | [INFO] [stdout] 133 | unsafe fn alloc(&mut self, layout: Layout) -> Result, AllocErr> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected normal fn, found unsafe fn [INFO] [stdout] | [INFO] [stdout] = note: expected fn pointer `fn(&mut Heap, core::alloc::Layout) -> core::result::Result, _>` [INFO] [stdout] found fn pointer `unsafe fn(&mut Heap, core::alloc::Layout) -> core::result::Result, _>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0053, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0053`. [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `spin`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "8665af71e3bf3d0f8a8cc0c93ac4263c98e2dc27ca2a8b78ade8afb0aaf7e724", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8665af71e3bf3d0f8a8cc0c93ac4263c98e2dc27ca2a8b78ade8afb0aaf7e724", kill_on_drop: false }` [INFO] [stdout] 8665af71e3bf3d0f8a8cc0c93ac4263c98e2dc27ca2a8b78ade8afb0aaf7e724