[INFO] crate ff-find 0.24.9 is already in cache
[INFO] extracting crate ff-find 0.24.9 into work/ex/beta-1.38-1/sources/1.37.0/reg/ff-find/0.24.9
[INFO] extracting crate ff-find 0.24.9 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ff-find/0.24.9
[INFO] validating manifest of ff-find-0.24.9 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 ff-find-0.24.9 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 ff-find-0.24.9
[INFO] finished frobbing ff-find-0.24.9
[INFO] frobbed toml for ff-find-0.24.9 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ff-find/0.24.9/Cargo.toml
[INFO] started frobbing ff-find-0.24.9
[INFO] finished frobbing ff-find-0.24.9
[INFO] frobbed toml for ff-find-0.24.9 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ff-find/0.24.9/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 ff-find-0.24.9 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-3/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/ff-find/0.24.9:/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] f4dbe29d2ca2ecaabeb5e9468eb447aecca62b83cd8f98ecba43bebfb6f7ab97
[INFO] running `"docker" "start" "-a" "f4dbe29d2ca2ecaabeb5e9468eb447aecca62b83cd8f98ecba43bebfb6f7ab97"`
[INFO] [stderr]    Compiling arc-swap v0.4.2
[INFO] [stderr]    Compiling ff-find v0.24.9 (/opt/crater/workdir)
[INFO] [stderr]    Compiling signal-hook-registry v1.1.1
[INFO] [stderr]    Compiling signal-hook v0.1.10
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.89s
[INFO] running `"docker" "inspect" "f4dbe29d2ca2ecaabeb5e9468eb447aecca62b83cd8f98ecba43bebfb6f7ab97"`
[INFO] running `"docker" "rm" "-f" "f4dbe29d2ca2ecaabeb5e9468eb447aecca62b83cd8f98ecba43bebfb6f7ab97"`
[INFO] [stdout] f4dbe29d2ca2ecaabeb5e9468eb447aecca62b83cd8f98ecba43bebfb6f7ab97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/ff-find/0.24.9:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 570f866730590215f6866c1a115323b11d4ba40956567e33caecf5285a53a676
[INFO] running `"docker" "start" "-a" "570f866730590215f6866c1a115323b11d4ba40956567e33caecf5285a53a676"`
[INFO] [stderr]    Compiling ff-find v0.24.9 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `ff-find`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ff src/main.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=0f6a9962cfd62ccf -C extra-filename=-0f6a9962cfd62ccf --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-a97f7bbd6313e20c.rlib --extern ansi_term=/opt/crater/target/debug/deps/libansi_term-8091014737d4fb0a.rlib --extern atty=/opt/crater/target/debug/deps/libatty-22eb3b2ac1d714c2.rlib --extern clap=/opt/crater/target/debug/deps/libclap-946176546f1bfef1.rlib --extern diff=/opt/crater/target/debug/deps/libdiff-e108cab059a1fabf.rlib --extern globset=/opt/crater/target/debug/deps/libglobset-7e0f4c724b568273.rlib --extern fnv=/opt/crater/target/debug/deps/libfnv-6e18f98be4338210.rlib --extern glob=/opt/crater/target/debug/deps/libglob-1302d9689d3a3dcc.rlib --extern ignore=/opt/crater/target/debug/deps/libignore-086ff546968941f3.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-1f7a4359e40a6da9.rlib --extern log=/opt/crater/target/debug/deps/liblog-ab552fa662c561dc.rlib --extern memchr=/opt/crater/target/debug/deps/libmemchr-23e7689be8a12a36.rlib --extern nix=/opt/crater/target/debug/deps/libnix-bb6820408e0ebcee.rlib --extern num_cpus=/opt/crater/target/debug/deps/libnum_cpus-b569161181e0c021.rlib --extern regex=/opt/crater/target/debug/deps/libregex-2f54045970e77773.rlib --extern same_file=/opt/crater/target/debug/deps/libsame_file-8268c7efcedb46b2.rlib --extern signal_hook=/opt/crater/target/debug/deps/libsignal_hook-d9faaa7f78bab552.rlib --extern tempdir=/opt/crater/target/debug/deps/libtempdir-d6d1b0f548d3c5d8.rlib --extern tempfile=/opt/crater/target/debug/deps/libtempfile-b29d5749da4bbd9d.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "570f866730590215f6866c1a115323b11d4ba40956567e33caecf5285a53a676"`
[INFO] running `"docker" "rm" "-f" "570f866730590215f6866c1a115323b11d4ba40956567e33caecf5285a53a676"`
[INFO] [stdout] 570f866730590215f6866c1a115323b11d4ba40956567e33caecf5285a53a676