Nov 18 03:08:58.919 INFO testing proptest-0.8.7 against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 18 03:08:58.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 18 03:08:59.503 INFO [stdout] 02e3b67a45ef471fd6d0d6d02d1630f8e24a070165bebc08b297e7012a65c017
Nov 18 03:08:59.511 INFO running `"docker" "start" "-a" "02e3b67a45ef471fd6d0d6d02d1630f8e24a070165bebc08b297e7012a65c017"`
Nov 18 03:09:02.190 INFO [stderr] usermod: no changes
Nov 18 03:09:02.359 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Nov 18 03:09:12.699 INFO [stderr] warning: unused `core::result::Result` that must be used
Nov 18 03:09:12.699 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 18 03:09:12.699 INFO [stderr]     |
Nov 18 03:09:12.699 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 18 03:09:12.699 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 03:09:12.699 INFO [stderr]     |
Nov 18 03:09:12.699 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 18 03:09:12.699 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 03:09:12.699 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 18 03:09:12.699 INFO [stderr] 
Nov 18 03:09:20.891 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.65s
Nov 18 03:09:20.896 INFO [stderr] su: No module specific data is present
Nov 18 03:09:21.403 INFO running `"docker" "inspect" "02e3b67a45ef471fd6d0d6d02d1630f8e24a070165bebc08b297e7012a65c017"`
Nov 18 03:09:21.813 INFO running `"docker" "rm" "-f" "02e3b67a45ef471fd6d0d6d02d1630f8e24a070165bebc08b297e7012a65c017"`
Nov 18 03:09:22.087 INFO [stdout] 02e3b67a45ef471fd6d0d6d02d1630f8e24a070165bebc08b297e7012a65c017
Nov 18 03:09:22.095 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 18 03:09:22.363 INFO [stdout] 1bf2b948ee2cc497e453d754a4d329f18c00f6a9bc5963e9d0cdc60768ee1bec
Nov 18 03:09:22.364 INFO running `"docker" "start" "-a" "1bf2b948ee2cc497e453d754a4d329f18c00f6a9bc5963e9d0cdc60768ee1bec"`
Nov 18 03:09:23.215 INFO [stderr] usermod: no changes
Nov 18 03:09:23.375 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Nov 18 03:09:51.325 INFO [stderr] warning: unused `core::result::Result` that must be used
Nov 18 03:09:51.325 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 18 03:09:51.325 INFO [stderr]     |
Nov 18 03:09:51.325 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 18 03:09:51.325 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 03:09:51.325 INFO [stderr]     |
Nov 18 03:09:51.325 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 18 03:09:51.325 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 03:09:51.326 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 18 03:09:51.326 INFO [stderr] 
Nov 18 03:10:43.731 INFO [stderr] error: Could not compile `proptest`.
Nov 18 03:10:43.732 INFO [stderr] 
Nov 18 03:10:43.733 INFO [stderr] Caused by:
Nov 18 03:10:43.734 INFO [stderr]   process didn't exit successfully: `rustc --crate-name proptest src/lib.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="bit-set"' --cfg 'feature="byteorder"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="num-traits"' --cfg 'feature="quick-error"' --cfg 'feature="rand"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=9136e1399e3192c9 -C extra-filename=-9136e1399e3192c9 --out-dir /target/debug/deps -L dependency=/target/debug/deps --extern bit_set=/target/debug/deps/libbit_set-b618028d0e67ba06.rlib --extern bitflags=/target/debug/deps/libbitflags-614e225dcd819c05.rlib --extern byteorder=/target/debug/deps/libbyteorder-8b44cfd36317173c.rlib --extern lazy_static=/target/debug/deps/liblazy_static-c0cfb1f7b46ec65b.rlib --extern num_traits=/target/debug/deps/libnum_traits-67c6bc38ac75bcaa.rlib --extern quick_error=/target/debug/deps/libquick_error-3b5a20401cc507e1.rlib --extern rand=/target/debug/deps/librand-176763c617779002.rlib --extern regex=/target/debug/deps/libregex-fe5a2fa2504a2321.rlib --extern regex_syntax=/target/debug/deps/libregex_syntax-b386d78eaecdc796.rlib --extern rusty_fork=/target/debug/deps/librusty_fork-19b2778556a6b2b7.rlib --extern tempfile=/target/debug/deps/libtempfile-72f4164290831d4c.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
Nov 18 03:10:43.739 INFO [stderr] su: No module specific data is present
Nov 18 03:10:44.429 INFO running `"docker" "inspect" "1bf2b948ee2cc497e453d754a4d329f18c00f6a9bc5963e9d0cdc60768ee1bec"`
Nov 18 03:10:44.648 INFO running `"docker" "rm" "-f" "1bf2b948ee2cc497e453d754a4d329f18c00f6a9bc5963e9d0cdc60768ee1bec"`
Nov 18 03:10:44.743 INFO [stdout] 1bf2b948ee2cc497e453d754a4d329f18c00f6a9bc5963e9d0cdc60768ee1bec