[INFO] crate proptest 0.9.4 is already in cache
[INFO] testing proptest-0.9.4 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate proptest 0.9.4 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate proptest 0.9.4 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proptest 0.9.4
[INFO] finished tweaking crates.io crate proptest 0.9.4
[INFO] tweaked toml for crates.io crate proptest 0.9.4 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a1679eabdd6bf3d4e86d32816fd607e4fb1fb0c11f336cd912f572b2ddff9111
[INFO] running `"docker" "start" "-a" "a1679eabdd6bf3d4e86d32816fd607e4fb1fb0c11f336cd912f572b2ddff9111"`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.35s
[INFO] running `"docker" "inspect" "a1679eabdd6bf3d4e86d32816fd607e4fb1fb0c11f336cd912f572b2ddff9111"`
[INFO] running `"docker" "rm" "-f" "a1679eabdd6bf3d4e86d32816fd607e4fb1fb0c11f336cd912f572b2ddff9111"`
[INFO] [stdout] a1679eabdd6bf3d4e86d32816fd607e4fb1fb0c11f336cd912f572b2ddff9111
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] fe2e2b75877c432ef44b90c867e8ecba8d7c20c4ea73256ddafc8193278ef061
[INFO] running `"docker" "start" "-a" "fe2e2b75877c432ef44b90c867e8ecba8d7c20c4ea73256ddafc8193278ef061"`
[INFO] [stderr]    Compiling proptest v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `proptest`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name proptest src/lib.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="bit-set"' --cfg 'feature="break-dead-code"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="lazy_static"' --cfg 'feature="quick-error"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=2290893f28a96567 -C extra-filename=-2290893f28a96567 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-e831679a86d1ec23.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-4961bb5087b14aca.rlib --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-e9585dd8e97c3abf.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-955d54352a795d1f.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-fe8e2df38f6c228e.rlib --extern quick_error=/opt/rustwide/target/debug/deps/libquick_error-9411b7aab885de58.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-e4f47f6fb9ed7d59.rlib --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-16f13f148e1c6ee4.rlib --extern rand_xorshift=/opt/rustwide/target/debug/deps/librand_xorshift-0466e57f824d7b92.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-cb7c13b1d2dbb6a4.rlib --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-d336655d3438170b.rlib --extern rusty_fork=/opt/rustwide/target/debug/deps/librusty_fork-1b7a11e6afb4d47c.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-d8318b8f1bb86728.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "fe2e2b75877c432ef44b90c867e8ecba8d7c20c4ea73256ddafc8193278ef061"`
[INFO] running `"docker" "rm" "-f" "fe2e2b75877c432ef44b90c867e8ecba8d7c20c4ea73256ddafc8193278ef061"`
[INFO] [stdout] fe2e2b75877c432ef44b90c867e8ecba8d7c20c4ea73256ddafc8193278ef061