[INFO] cloning repository https://github.com/nothking/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nothking/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnothking%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnothking%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 062730317529650a792eab8058ab8c806f3a612f
[INFO] checking nothking/rust_study against master#89b9f7b284aacc5f8613438b80e4dd7bdd10549e for pr-92594
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnothking%2Frust_study" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nothking/rust_study on toolchain 89b9f7b284aacc5f8613438b80e4dd7bdd10549e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nothking/rust_study
[INFO] finished tweaking git repo https://github.com/nothking/rust_study
[INFO] tweaked toml for git repo https://github.com/nothking/rust_study written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/nothking/rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.12.4
[INFO] [stderr]   Downloaded twox-hash v1.6.1
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded num-bigint v0.2.6
[INFO] [stderr]   Downloaded tinyvec v1.4.0
[INFO] [stderr]   Downloaded mysql v18.2.0
[INFO] [stderr]   Downloaded lexical v4.2.1
[INFO] [stderr]   Downloaded named_pipe v0.4.1
[INFO] [stderr]   Downloaded failure_derive v0.1.8
[INFO] [stderr]   Downloaded nodrop v0.1.14
[INFO] [stderr]   Downloaded arrayvec v0.4.12
[INFO] [stderr]   Downloaded addr2line v0.16.0
[INFO] [stderr]   Downloaded hashbrown v0.6.3
[INFO] [stderr]   Downloaded object v0.26.2
[INFO] [stderr]   Downloaded backtrace v0.3.61
[INFO] [stderr]   Downloaded typenum v1.14.0
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded sha2 v0.8.2
[INFO] [stderr]   Downloaded io-enum v0.2.6
[INFO] [stderr]   Downloaded const-random-macro v0.1.13
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded crunchy v0.2.2
[INFO] [stderr]   Downloaded tiny-keccak v2.0.2
[INFO] [stderr]   Downloaded base64 v0.11.0
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded synstructure v0.12.5
[INFO] [stderr]   Downloaded derive_utils v0.11.2
[INFO] [stderr]   Downloaded bigdecimal v0.1.2
[INFO] [stderr]   Downloaded mysql_common v0.20.2
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded libc v0.2.102
[INFO] [stderr]   Downloaded libz-sys v1.1.3
[INFO] [stderr]   Downloaded ahash v0.2.19
[INFO] [stderr]   Downloaded lexical-core v0.6.8
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded static_assertions v0.3.4
[INFO] [stderr]   Downloaded const-random v0.1.13
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded lru v0.4.3
[INFO] [stderr]   Downloaded rust_decimal v1.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 493fce493b380f5537ac9dfbeaf371e3a664599b74b7b9f657a05db20e8def61
[INFO] running `Command { std: "docker" "start" "-a" "493fce493b380f5537ac9dfbeaf371e3a664599b74b7b9f657a05db20e8def61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "493fce493b380f5537ac9dfbeaf371e3a664599b74b7b9f657a05db20e8def61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493fce493b380f5537ac9dfbeaf371e3a664599b74b7b9f657a05db20e8def61", kill_on_drop: false }`
[INFO] [stdout] 493fce493b380f5537ac9dfbeaf371e3a664599b74b7b9f657a05db20e8def61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0b2d5831c788e00fb265b7eaec559d6d6149761be6aa51605a7fba0b7a6e79
[INFO] running `Command { std: "docker" "start" "-a" "2b0b2d5831c788e00fb265b7eaec559d6d6149761be6aa51605a7fba0b7a6e79", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling mysql v18.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking log v0.4.14
[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 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type lib --emit=dep-info,metadata -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=b65cedb3bd8cf729 -C extra-filename=-b65cedb3bd8cf729 --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" "2b0b2d5831c788e00fb265b7eaec559d6d6149761be6aa51605a7fba0b7a6e79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0b2d5831c788e00fb265b7eaec559d6d6149761be6aa51605a7fba0b7a6e79", kill_on_drop: false }`
[INFO] [stdout] 2b0b2d5831c788e00fb265b7eaec559d6d6149761be6aa51605a7fba0b7a6e79