[INFO] cloning repository https://github.com/tikv/tikv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tikv/tikv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Ftikv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Ftikv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb2ed7f64efa95f3b80890f795127c1d61a292a7
[INFO] checking tikv/tikv against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikv%2Ftikv" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tikv/tikv on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/tikv/tikv
[INFO] finished tweaking git repo https://github.com/tikv/tikv
[INFO] tweaked toml for git repo https://github.com/tikv/tikv written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/tikv/tikv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e9be95d96d033e3c3c3c0aaeae5161b753ec342ec145114186419a841a1cfd1
[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" "7e9be95d96d033e3c3c3c0aaeae5161b753ec342ec145114186419a841a1cfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e9be95d96d033e3c3c3c0aaeae5161b753ec342ec145114186419a841a1cfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e9be95d96d033e3c3c3c0aaeae5161b753ec342ec145114186419a841a1cfd1", kill_on_drop: false }`
[INFO] [stdout] 7e9be95d96d033e3c3c3c0aaeae5161b753ec342ec145114186419a841a1cfd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b51e84b29b5630831a0f22c8877df8a38d92b56989ad55ae66fe42f63b0ddd84
[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" "b51e84b29b5630831a0f22c8877df8a38d92b56989ad55ae66fe42f63b0ddd84", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling protobuf v2.8.0 (https://github.com/pingcap/rust-protobuf?rev=65e9df20fbcbcf2409d5ee86a2332ecd04c534f8#65e9df20)
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling sysinfo v0.16.4
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking farmhash v1.1.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking panic_hook v0.0.1 (/opt/rustwide/workdir/components/panic_hook)
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling symbolic-demangle v8.0.0
[INFO] [stderr]    Compiling hyper-openssl v0.8.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking vlog v0.1.4
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rev_lines v0.2.1
[INFO] [stderr]     Checking crc64fast v0.1.0
[INFO] [stderr]     Checking murmur3 v0.5.1
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking arbitrary v0.4.0
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling honggfuzz v0.5.47
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking cc v1.0.66
[INFO] [stderr]     Checking maligned v0.2.1
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3 (https://github.com/tikv/crossbeam.git?branch=tikv-5.0#e0e083d0)
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking async-speed-limit v0.3.1
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]     Checking linked_hash_set v0.1.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking raw-cpuid v9.0.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]     Checking libflate v1.0.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-global v0.1.0 (https://github.com/breeswish/slog-global.git?rev=d592f88e4dbba5eb439998463054f1a44fbf17b9#d592f88e)
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling rusoto_core v0.45.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling procinfo v0.4.2 (https://github.com/tikv/procinfo-rs?rev=5125fc1a69496b73b26b3c08b6e8afc3c665a56e#5125fc1a)
[INFO] [stderr]    Compiling afl v0.6.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking nix v0.19.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3 (https://github.com/tikv/crossbeam.git?branch=tikv-5.0#e0e083d0)
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.48/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=1 -C overflow-checks=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=a8f937f98b21f363 -C extra-filename=-a8f937f98b21f363 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5a7cb5576797cf20.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0824f04b6e6dd748.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-2c331bb0a4080acf.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" "b51e84b29b5630831a0f22c8877df8a38d92b56989ad55ae66fe42f63b0ddd84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51e84b29b5630831a0f22c8877df8a38d92b56989ad55ae66fe42f63b0ddd84", kill_on_drop: false }`
[INFO] [stdout] b51e84b29b5630831a0f22c8877df8a38d92b56989ad55ae66fe42f63b0ddd84