[INFO] crate defrag-dirs 0.1.1 is already in cache
[INFO] testing defrag-dirs-0.1.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate defrag-dirs 0.1.1 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate defrag-dirs 0.1.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate defrag-dirs 0.1.1
[INFO] finished tweaking crates.io crate defrag-dirs 0.1.1
[INFO] tweaked toml for crates.io crate defrag-dirs 0.1.1 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] daf5513163c691f298d0d39e513be544f30080b87c0c2888aab2faf9651cfbe2
[INFO] running `"docker" "start" "-a" "daf5513163c691f298d0d39e513be544f30080b87c0c2888aab2faf9651cfbe2"`
[INFO] [stderr]    Compiling defrag-dirs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `alloc_system`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | extern crate alloc_system;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `defrag-dirs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "daf5513163c691f298d0d39e513be544f30080b87c0c2888aab2faf9651cfbe2"`
[INFO] running `"docker" "rm" "-f" "daf5513163c691f298d0d39e513be544f30080b87c0c2888aab2faf9651cfbe2"`
[INFO] [stdout] daf5513163c691f298d0d39e513be544f30080b87c0c2888aab2faf9651cfbe2