[INFO] updating cached repository pbtrung/rsbup
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pbtrung/rsbup
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pbtrung/rsbup" "work/ex/beta-1.38-1/sources/1.37.0/gh/pbtrung/rsbup"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pbtrung/rsbup'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pbtrung/rsbup" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbtrung/rsbup"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbtrung/rsbup'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 53eee9261cfb0a7cd9a12b3b8af3f0691509de38
[INFO] sha for GitHub repo pbtrung/rsbup: 53eee9261cfb0a7cd9a12b3b8af3f0691509de38
[INFO] validating manifest of pbtrung/rsbup on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pbtrung/rsbup on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pbtrung/rsbup
[INFO] finished frobbing pbtrung/rsbup
[INFO] frobbed toml for pbtrung/rsbup written to work/ex/beta-1.38-1/sources/1.37.0/gh/pbtrung/rsbup/Cargo.toml
[INFO] started frobbing pbtrung/rsbup
[INFO] finished frobbing pbtrung/rsbup
[INFO] frobbed toml for pbtrung/rsbup written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbtrung/rsbup/Cargo.toml
[INFO] crate pbtrung/rsbup already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pbtrung/rsbup against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbtrung/rsbup:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] dddbfe4a0d4a04f3194540dc9b605538ee013db969ecf55538e2638dc5fdb303
[INFO] running `"docker" "start" "-a" "dddbfe4a0d4a04f3194540dc9b605538ee013db969ecf55538e2638dc5fdb303"`
[INFO] [stderr]    Compiling cc v1.0.5
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling take_mut v0.2.0
[INFO] [stderr]    Compiling bs58 v0.2.0
[INFO] [stderr]    Compiling bounded-spsc-queue v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr] error[E0432]: unresolved import `alloc::allocator`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.2.0/src/lib.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | use alloc::allocator::{Alloc, Layout};
[INFO] [stderr]    |            ^^^^^^^^^ could not find `allocator` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.2.0/src/lib.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | use alloc::heap::Heap;
[INFO] [stderr]    |            ^^^^ could not find `heap` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(allocator_api, alloc, box_syntax, optin_builtin_traits)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `bounded-spsc-queue`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dddbfe4a0d4a04f3194540dc9b605538ee013db969ecf55538e2638dc5fdb303"`
[INFO] running `"docker" "rm" "-f" "dddbfe4a0d4a04f3194540dc9b605538ee013db969ecf55538e2638dc5fdb303"`
[INFO] [stdout] dddbfe4a0d4a04f3194540dc9b605538ee013db969ecf55538e2638dc5fdb303