[INFO] crate regex 1.2.0 is already in cache
[INFO] extracting crate regex 1.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/regex/1.2.0
[INFO] extracting crate regex 1.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/regex/1.2.0
[INFO] validating manifest of regex-1.2.0 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 regex-1.2.0 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 regex-1.2.0
[INFO] removed 0 missing tests
[INFO] finished frobbing regex-1.2.0
[INFO] frobbed toml for regex-1.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/regex/1.2.0/Cargo.toml
[INFO] started frobbing regex-1.2.0
[INFO] removed 0 missing tests
[INFO] finished frobbing regex-1.2.0
[INFO] frobbed toml for regex-1.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/regex/1.2.0/Cargo.toml
[INFO] crate regex-1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing regex-1.2.0 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/regex/1.2.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ce62d5a6523a048aca5095ec26ae029b82a674bc39194ee66b0bf6c1fb1c1eb3
[INFO] running `"docker" "start" "-a" "ce62d5a6523a048aca5095ec26ae029b82a674bc39194ee66b0bf6c1fb1c1eb3"`
[INFO] [stderr]    Compiling ucd-util v0.1.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling regex-syntax v0.6.9
[INFO] [stderr]    Compiling regex v1.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.92s
[INFO] running `"docker" "inspect" "ce62d5a6523a048aca5095ec26ae029b82a674bc39194ee66b0bf6c1fb1c1eb3"`
[INFO] running `"docker" "rm" "-f" "ce62d5a6523a048aca5095ec26ae029b82a674bc39194ee66b0bf6c1fb1c1eb3"`
[INFO] [stdout] ce62d5a6523a048aca5095ec26ae029b82a674bc39194ee66b0bf6c1fb1c1eb3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/regex/1.2.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8691a9d5f407a28cc3591943047e0ee36441efbdfb200fce3c85fb2137c46604
[INFO] running `"docker" "start" "-a" "8691a9d5f407a28cc3591943047e0ee36441efbdfb200fce3c85fb2137c46604"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling regex v1.2.0 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name backtrack tests/test_backtrack.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="use_std"' -C metadata=69db68993a858658 -C extra-filename=-69db68993a858658 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-ff5660fa59058fc5.rlib --extern doc_comment=/opt/crater/target/debug/deps/libdoc_comment-548104fe2da10b97.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-eb33edc716f69401.rlib --extern memchr=/opt/crater/target/debug/deps/libmemchr-5970d48417368191.rlib --extern quickcheck=/opt/crater/target/debug/deps/libquickcheck-3b951e677c393fab.rlib --extern rand=/opt/crater/target/debug/deps/librand-10bf391ef2970bba.rlib --extern regex=/opt/crater/target/debug/deps/libregex-06fd429a6bafc8c4.rlib --extern regex_syntax=/opt/crater/target/debug/deps/libregex_syntax-037aaffe55c1fb49.rlib --extern thread_local=/opt/crater/target/debug/deps/libthread_local-1801494cfc15e4c0.rlib --extern utf8_ranges=/opt/crater/target/debug/deps/libutf8_ranges-115c3e4c14f9d177.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nfa tests/test_nfa.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="use_std"' -C metadata=29444521e2bd145c -C extra-filename=-29444521e2bd145c --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-ff5660fa59058fc5.rlib --extern doc_comment=/opt/crater/target/debug/deps/libdoc_comment-548104fe2da10b97.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-eb33edc716f69401.rlib --extern memchr=/opt/crater/target/debug/deps/libmemchr-5970d48417368191.rlib --extern quickcheck=/opt/crater/target/debug/deps/libquickcheck-3b951e677c393fab.rlib --extern rand=/opt/crater/target/debug/deps/librand-10bf391ef2970bba.rlib --extern regex=/opt/crater/target/debug/deps/libregex-06fd429a6bafc8c4.rlib --extern regex_syntax=/opt/crater/target/debug/deps/libregex_syntax-037aaffe55c1fb49.rlib --extern thread_local=/opt/crater/target/debug/deps/libthread_local-1801494cfc15e4c0.rlib --extern utf8_ranges=/opt/crater/target/debug/deps/libutf8_ranges-115c3e4c14f9d177.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nfa_utf8bytes tests/test_nfa_utf8bytes.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="use_std"' -C metadata=8eaa6e565fecd2ad -C extra-filename=-8eaa6e565fecd2ad --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-ff5660fa59058fc5.rlib --extern doc_comment=/opt/crater/target/debug/deps/libdoc_comment-548104fe2da10b97.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-eb33edc716f69401.rlib --extern memchr=/opt/crater/target/debug/deps/libmemchr-5970d48417368191.rlib --extern quickcheck=/opt/crater/target/debug/deps/libquickcheck-3b951e677c393fab.rlib --extern rand=/opt/crater/target/debug/deps/librand-10bf391ef2970bba.rlib --extern regex=/opt/crater/target/debug/deps/libregex-06fd429a6bafc8c4.rlib --extern regex_syntax=/opt/crater/target/debug/deps/libregex_syntax-037aaffe55c1fb49.rlib --extern thread_local=/opt/crater/target/debug/deps/libthread_local-1801494cfc15e4c0.rlib --extern utf8_ranges=/opt/crater/target/debug/deps/libutf8_ranges-115c3e4c14f9d177.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name backtrack_utf8bytes tests/test_backtrack_utf8bytes.rs --color never --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="use_std"' -C metadata=385840a08033d347 -C extra-filename=-385840a08033d347 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-ff5660fa59058fc5.rlib --extern doc_comment=/opt/crater/target/debug/deps/libdoc_comment-548104fe2da10b97.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-eb33edc716f69401.rlib --extern memchr=/opt/crater/target/debug/deps/libmemchr-5970d48417368191.rlib --extern quickcheck=/opt/crater/target/debug/deps/libquickcheck-3b951e677c393fab.rlib --extern rand=/opt/crater/target/debug/deps/librand-10bf391ef2970bba.rlib --extern regex=/opt/crater/target/debug/deps/libregex-06fd429a6bafc8c4.rlib --extern regex_syntax=/opt/crater/target/debug/deps/libregex_syntax-037aaffe55c1fb49.rlib --extern thread_local=/opt/crater/target/debug/deps/libthread_local-1801494cfc15e4c0.rlib --extern utf8_ranges=/opt/crater/target/debug/deps/libutf8_ranges-115c3e4c14f9d177.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "8691a9d5f407a28cc3591943047e0ee36441efbdfb200fce3c85fb2137c46604"`
[INFO] running `"docker" "rm" "-f" "8691a9d5f407a28cc3591943047e0ee36441efbdfb200fce3c85fb2137c46604"`
[INFO] [stdout] 8691a9d5f407a28cc3591943047e0ee36441efbdfb200fce3c85fb2137c46604