[INFO] fetching crate regex 1.3.9...
[INFO] testing regex-1.3.9 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate regex 1.3.9 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate regex 1.3.9 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate regex 1.3.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate regex 1.3.9
[INFO] tweaked toml for crates.io crate regex 1.3.9 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate regex 1.3.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f59551f876ef1a0f2cbfcb08b5bd0547ed18c30e8cbc91aad30e5ecb2f320052
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f59551f876ef1a0f2cbfcb08b5bd0547ed18c30e8cbc91aad30e5ecb2f320052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f59551f876ef1a0f2cbfcb08b5bd0547ed18c30e8cbc91aad30e5ecb2f320052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f59551f876ef1a0f2cbfcb08b5bd0547ed18c30e8cbc91aad30e5ecb2f320052", kill_on_drop: false }`
[INFO] [stdout] f59551f876ef1a0f2cbfcb08b5bd0547ed18c30e8cbc91aad30e5ecb2f320052
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a66f8b823936ea480ff4f7543934321980581a2f6cf665daa1246cdd1e5d111
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a66f8b823936ea480ff4f7543934321980581a2f6cf665daa1246cdd1e5d111", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.44s
[INFO] running `Command { std: "docker" "inspect" "7a66f8b823936ea480ff4f7543934321980581a2f6cf665daa1246cdd1e5d111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a66f8b823936ea480ff4f7543934321980581a2f6cf665daa1246cdd1e5d111", kill_on_drop: false }`
[INFO] [stdout] 7a66f8b823936ea480ff4f7543934321980581a2f6cf665daa1246cdd1e5d111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db7991950170e576083121944f2f54ac47f8ff889c3bb0fc24deb855ae8720ea
[INFO] running `Command { std: "docker" "start" "-a" "db7991950170e576083121944f2f54ac47f8ff889c3bb0fc24deb855ae8720ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[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 quickcheck v0.8.5
[INFO] [stderr]    Compiling regex v1.3.9 (/opt/rustwide/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_bytes tests/test_backtrack_bytes.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=0053bdc870938fd7 -C extra-filename=-0053bdc870938fd7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-5ac90752cf561456.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7c0477ae3415ac1f.rlib --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-1e6b68a09fbeab95.rlib --extern quickcheck=/opt/rustwide/target/debug/deps/libquickcheck-0976e2887e04c7ce.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-5ea096508660a522.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-fbac61e6730c6133.rlib --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-e84a84df48f8cb81.rlib --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-c3b7931041689864.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "db7991950170e576083121944f2f54ac47f8ff889c3bb0fc24deb855ae8720ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db7991950170e576083121944f2f54ac47f8ff889c3bb0fc24deb855ae8720ea", kill_on_drop: false }`
[INFO] [stdout] db7991950170e576083121944f2f54ac47f8ff889c3bb0fc24deb855ae8720ea