[INFO] crate qindex_multi 0.4.0 is already in cache
[INFO] extracting crate qindex_multi 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/qindex_multi/0.4.0
[INFO] extracting crate qindex_multi 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/qindex_multi/0.4.0
[INFO] validating manifest of qindex_multi-0.4.0 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 qindex_multi-0.4.0 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 qindex_multi-0.4.0
[INFO] finished frobbing qindex_multi-0.4.0
[INFO] frobbed toml for qindex_multi-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/qindex_multi/0.4.0/Cargo.toml
[INFO] started frobbing qindex_multi-0.4.0
[INFO] finished frobbing qindex_multi-0.4.0
[INFO] frobbed toml for qindex_multi-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/qindex_multi/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 qindex_multi-0.4.0 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/qindex_multi/0.4.0:/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] 503e0b2f6461cb486017c456bdcd6240b7476f36a2ebb84deabed5b84fe64222
[INFO] running `"docker" "start" "-a" "503e0b2f6461cb486017c456bdcd6240b7476f36a2ebb84deabed5b84fe64222"`
[INFO] [stderr]    Compiling vec_map v0.3.0
[INFO] [stderr]    Compiling qcollect-traits v0.4.1
[INFO] [stderr] error[E0432]: unresolved import `std::collections::hash_state`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/qcollect-traits-0.4.1/src/impls_libstd.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::hash_state::HashState;
[INFO] [stderr]   |                       ^^^^^^^^^^ could not find `hash_state` in `collections`
[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/qcollect-traits-0.4.1/src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![feature(associated_type_defaults)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/qcollect-traits-0.4.1/src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(hashmap_hasher)]
[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 `qcollect-traits`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "503e0b2f6461cb486017c456bdcd6240b7476f36a2ebb84deabed5b84fe64222"`
[INFO] running `"docker" "rm" "-f" "503e0b2f6461cb486017c456bdcd6240b7476f36a2ebb84deabed5b84fe64222"`
[INFO] [stdout] 503e0b2f6461cb486017c456bdcd6240b7476f36a2ebb84deabed5b84fe64222