[INFO] crate alloc-cortex-m 0.3.5 is already in cache
[INFO] checking alloc-cortex-m-0.3.5 against try#3738e44c8fffe9e1fdfda9304a4df74ce7b29152 for pr-68746
[INFO] extracting crate alloc-cortex-m 0.3.5 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate alloc-cortex-m 0.3.5 on toolchain 3738e44c8fffe9e1fdfda9304a4df74ce7b29152
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate alloc-cortex-m 0.3.5
[INFO] finished tweaking crates.io crate alloc-cortex-m 0.3.5
[INFO] tweaked toml for crates.io crate alloc-cortex-m 0.3.5 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9776e9c56755434b86814328f636bd0714c15b28c12827892ae2d205e7cbcab
[INFO] running `"docker" "start" "-a" "e9776e9c56755434b86814328f636bd0714c15b28c12827892ae2d205e7cbcab"`
[INFO] [stderr]     Checking volatile-register v0.1.2
[INFO] [stderr]     Checking linked_list_allocator v0.6.5
[INFO] [stderr] error[E0432]: unresolved import `alloc::alloc::Alloc`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.5/src/lib.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | use alloc::alloc::{Alloc, AllocErr, Layout};
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    no `Alloc` in `alloc`
[INFO] [stderr]    |                    help: a similar name exists in the module: `alloc`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `linked_list_allocator`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e9776e9c56755434b86814328f636bd0714c15b28c12827892ae2d205e7cbcab"`
[INFO] running `"docker" "rm" "-f" "e9776e9c56755434b86814328f636bd0714c15b28c12827892ae2d205e7cbcab"`
[INFO] [stdout] e9776e9c56755434b86814328f636bd0714c15b28c12827892ae2d205e7cbcab