[INFO] crate soa 0.9.2 is already in cache
[INFO] extracting crate soa 0.9.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/soa/0.9.2
[INFO] extracting crate soa 0.9.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/soa/0.9.2
[INFO] validating manifest of soa-0.9.2 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 soa-0.9.2 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 soa-0.9.2
[INFO] finished frobbing soa-0.9.2
[INFO] frobbed toml for soa-0.9.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/soa/0.9.2/Cargo.toml
[INFO] started frobbing soa-0.9.2
[INFO] finished frobbing soa-0.9.2
[INFO] frobbed toml for soa-0.9.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/soa/0.9.2/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 soa-0.9.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/soa/0.9.2:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e8c053655ae8413419a454ec4629c3dbea3693fc6f1cad1bfa1a112a843c9ac4
[INFO] running `"docker" "start" "-a" "e8c053655ae8413419a454ec4629c3dbea3693fc6f1cad1bfa1a112a843c9ac4"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling soa v0.9.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(unsafe_no_drop_flag)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `collections`
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | extern crate collections;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `soa`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e8c053655ae8413419a454ec4629c3dbea3693fc6f1cad1bfa1a112a843c9ac4"`
[INFO] running `"docker" "rm" "-f" "e8c053655ae8413419a454ec4629c3dbea3693fc6f1cad1bfa1a112a843c9ac4"`
[INFO] [stdout] e8c053655ae8413419a454ec4629c3dbea3693fc6f1cad1bfa1a112a843c9ac4