[INFO] crate powhasher 0.2.2 is already in cache
[INFO] extracting crate powhasher 0.2.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/powhasher/0.2.2
[INFO] extracting crate powhasher 0.2.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/powhasher/0.2.2
[INFO] validating manifest of powhasher-0.2.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of powhasher-0.2.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing powhasher-0.2.2
[INFO] finished frobbing powhasher-0.2.2
[INFO] frobbed toml for powhasher-0.2.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/powhasher/0.2.2/Cargo.toml
[INFO] started frobbing powhasher-0.2.2
[INFO] finished frobbing powhasher-0.2.2
[INFO] frobbed toml for powhasher-0.2.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/powhasher/0.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing powhasher-0.2.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/powhasher/0.2.2:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 09aea9ce6f99e1e2c0c42a3110279fd6278319fd11c4f06b994b6bbff6841026
[INFO] running `"docker" "start" "-a" "09aea9ce6f99e1e2c0c42a3110279fd6278319fd11c4f06b994b6bbff6841026"`
[INFO] [stderr]    Compiling crypto-simd v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling hex-literal-impl v0.1.2
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling core_affinity v0.5.9
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling blake-hash v0.2.0
[INFO] [stderr]    Compiling groestl-aesni v0.2.2
[INFO] [stderr]    Compiling threefish-cipher v0.3.1
[INFO] [stderr]    Compiling ppv-null v0.1.2
[INFO] [stderr]    Compiling ppv-lite86 v0.1.2
[INFO] [stderr]    Compiling hex-literal v0.1.4
[INFO] [stderr]    Compiling jh-x86_64 v0.2.2
[INFO] [stderr]    Compiling skein-hash v0.3.0
[INFO] [stderr]    Compiling cn-stratum v0.4.1
[INFO] [stderr]    Compiling yellowsun v0.2.3
[INFO] [stderr]    Compiling powhasher v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `alloc_system`
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | 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 `powhasher`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "09aea9ce6f99e1e2c0c42a3110279fd6278319fd11c4f06b994b6bbff6841026"`
[INFO] running `"docker" "rm" "-f" "09aea9ce6f99e1e2c0c42a3110279fd6278319fd11c4f06b994b6bbff6841026"`
[INFO] [stdout] 09aea9ce6f99e1e2c0c42a3110279fd6278319fd11c4f06b994b6bbff6841026