[INFO] updating cached repository https://github.com/vitiral/defrag-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2cf3eb802420de244e066e2d3c21566dd971695
[INFO] checking vitiral/defrag-rs against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitiral%2Fdefrag-rs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vitiral/defrag-rs on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vitiral/defrag-rs
[INFO] finished tweaking git repo https://github.com/vitiral/defrag-rs
[INFO] tweaked toml for git repo https://github.com/vitiral/defrag-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vitiral/defrag-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=allow" "-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" "+nightly-2019-10-27" "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] 229c1d0c0d9c8f9de4685a0d24f824e1f7fdd47aaa28b4eec9a064df0906bbc9
[INFO] running `"docker" "start" "-a" "229c1d0c0d9c8f9de4685a0d24f824e1f7fdd47aaa28b4eec9a064df0906bbc9"`
[INFO] [stderr]     Checking cbuf v0.1.1
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]     Checking defrag v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]  --> src/pool.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use alloc::heap;
[INFO] [stderr]   |     ^^^^^^^^^^^ no `heap` in the root
[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 `defrag`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]  --> src/pool.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use alloc::heap;
[INFO] [stderr]   |     ^^^^^^^^^^^ no `heap` in the root
[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 `defrag`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "229c1d0c0d9c8f9de4685a0d24f824e1f7fdd47aaa28b4eec9a064df0906bbc9"`
[INFO] running `"docker" "rm" "-f" "229c1d0c0d9c8f9de4685a0d24f824e1f7fdd47aaa28b4eec9a064df0906bbc9"`
[INFO] [stdout] 229c1d0c0d9c8f9de4685a0d24f824e1f7fdd47aaa28b4eec9a064df0906bbc9