[INFO] cloning repository https://github.com/TNkemdilim/maskedu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TNkemdilim/maskedu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTNkemdilim%2Fmaskedu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTNkemdilim%2Fmaskedu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f39cb16368400117959236adda686b07274f8f1
[INFO] checking TNkemdilim/maskedu against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTNkemdilim%2Fmaskedu" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TNkemdilim/maskedu on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TNkemdilim/maskedu
[INFO] finished tweaking git repo https://github.com/TNkemdilim/maskedu
[INFO] tweaked toml for git repo https://github.com/TNkemdilim/maskedu written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/TNkemdilim/maskedu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", 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] 730db8d7c0f366f520728d5cd94d25e0cfad3aa7c74571e15c5835aa29b28a9a
[INFO] running `Command { std: "docker" "start" "-a" "730db8d7c0f366f520728d5cd94d25e0cfad3aa7c74571e15c5835aa29b28a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "730db8d7c0f366f520728d5cd94d25e0cfad3aa7c74571e15c5835aa29b28a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730db8d7c0f366f520728d5cd94d25e0cfad3aa7c74571e15c5835aa29b28a9a", kill_on_drop: false }`
[INFO] [stdout] 730db8d7c0f366f520728d5cd94d25e0cfad3aa7c74571e15c5835aa29b28a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e594916972f3b33dbc414c976be1938955280ca5c448e0805de760377d7e6b
[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" "d4e594916972f3b33dbc414c976be1938955280ca5c448e0805de760377d7e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking atoi v0.2.3
[INFO] [stderr]     Checking checked v0.5.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking blowfish v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.3.1/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="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=d5401564e0dd4f17 -C extra-filename=-d5401564e0dd4f17 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-4d08794f6c5c150f.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-5f7fb6721c2f4953.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-7ef252b894994ef4.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-818aeac3d8830f5b.rmeta --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" "d4e594916972f3b33dbc414c976be1938955280ca5c448e0805de760377d7e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e594916972f3b33dbc414c976be1938955280ca5c448e0805de760377d7e6b", kill_on_drop: false }`
[INFO] [stdout] d4e594916972f3b33dbc414c976be1938955280ca5c448e0805de760377d7e6b