[INFO] cloning repository https://github.com/twocucao/mipha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twocucao/mipha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e20c3a71e6df6e07ed0a4d9d95a12977961e68a8
[INFO] checking twocucao/mipha against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twocucao/mipha on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twocucao/mipha
[INFO] finished tweaking git repo https://github.com/twocucao/mipha
[INFO] tweaked toml for git repo https://github.com/twocucao/mipha written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/twocucao/mipha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d7bfa3fa6d6a46933daf5c0b5e75b31bbb1ce4d2a4fa9a0ab698b641b4f45ef
[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" "8d7bfa3fa6d6a46933daf5c0b5e75b31bbb1ce4d2a4fa9a0ab698b641b4f45ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d7bfa3fa6d6a46933daf5c0b5e75b31bbb1ce4d2a4fa9a0ab698b641b4f45ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7bfa3fa6d6a46933daf5c0b5e75b31bbb1ce4d2a4fa9a0ab698b641b4f45ef", kill_on_drop: false }`
[INFO] [stdout] 8d7bfa3fa6d6a46933daf5c0b5e75b31bbb1ce4d2a4fa9a0ab698b641b4f45ef
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67c0aa969228ffae4bb5a26061d499212e3f232e018ed6d2d94b3f0cc3a771a2
[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" "67c0aa969228ffae4bb5a26061d499212e3f232e018ed6d2d94b3f0cc3a771a2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling remoteprocess v0.3.4
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling py-spy v0.3.3
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking benfred-read-process-memory v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.20/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --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=eb2814cccc9c8448 -C extra-filename=-eb2814cccc9c8448 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --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" "67c0aa969228ffae4bb5a26061d499212e3f232e018ed6d2d94b3f0cc3a771a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c0aa969228ffae4bb5a26061d499212e3f232e018ed6d2d94b3f0cc3a771a2", kill_on_drop: false }`
[INFO] [stdout] 67c0aa969228ffae4bb5a26061d499212e3f232e018ed6d2d94b3f0cc3a771a2