[INFO] cloning repository https://github.com/outersky/r2d2-mysql
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/outersky/r2d2-mysql" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foutersky%2Fr2d2-mysql", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foutersky%2Fr2d2-mysql'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ff8ea10149ace97a2d703094d64853598939216
[INFO] checking outersky/r2d2-mysql against master#9cf699d2ff4ff23a6d6862a35727f4d5d3567dae for pr-98456-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foutersky%2Fr2d2-mysql" "/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/outersky/r2d2-mysql on toolchain 9cf699d2ff4ff23a6d6862a35727f4d5d3567dae
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cf699d2ff4ff23a6d6862a35727f4d5d3567dae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/outersky/r2d2-mysql
[INFO] finished tweaking git repo https://github.com/outersky/r2d2-mysql
[INFO] tweaked toml for git repo https://github.com/outersky/r2d2-mysql written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/outersky/r2d2-mysql already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cf699d2ff4ff23a6d6862a35727f4d5d3567dae" "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 security-framework-sys v0.3.3
[INFO] [stderr]   Downloaded vcpkg v0.2.7
[INFO] [stderr]   Downloaded security-framework v0.3.4
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded openssl-sys v0.9.53
[INFO] [stderr]   Downloaded libc v0.2.101
[INFO] [stderr]   Downloaded num-complex v0.2.3
[INFO] [stderr]   Downloaded num-bigint v0.4.2
[INFO] [stderr]   Downloaded lru v0.6.5
[INFO] [stderr]   Downloaded time-macros-impl v0.1.1
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded clang-sys v1.2.2
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded openssl v0.10.26
[INFO] [stderr]   Downloaded socket2 v0.4.2
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded adler32 v1.0.4
[INFO] [stderr]   Downloaded sha2 v0.9.8
[INFO] [stderr]   Downloaded crc32fast v1.2.0
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.62
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded bigdecimal v0.2.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.62
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.62
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.62
[INFO] [stderr]   Downloaded lexical-core v0.7.5
[INFO] [stderr]   Downloaded libz-sys v1.0.25
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.62
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded once_cell v1.7.2
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded r2d2 v0.8.9
[INFO] [stderr]   Downloaded standback v0.2.15
[INFO] [stderr]   Downloaded native-tls v0.2.3
[INFO] [stderr]   Downloaded nix v0.21.1
[INFO] [stderr]   Downloaded twox-hash v1.5.0
[INFO] [stderr]   Downloaded serde_json v1.0.42
[INFO] [stderr]   Downloaded pem v0.8.3
[INFO] [stderr]   Downloaded const_fn v0.4.5
[INFO] [stderr]   Downloaded bumpalo v3.6.1
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.2
[INFO] [stderr]   Downloaded mysql v21.0.1
[INFO] [stderr]   Downloaded lexical v5.2.1
[INFO] [stderr]   Downloaded uuid v0.8.1
[INFO] [stderr]   Downloaded which v3.1.1
[INFO] [stderr]   Downloaded bindgen v0.58.1
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded miniz_oxide v0.3.5
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded num-bigint v0.2.3
[INFO] [stderr]   Downloaded rust_decimal v1.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.113
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.15
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded num-rational v0.2.2
[INFO] [stderr]   Downloaded subprocess v0.2.7
[INFO] [stderr]   Downloaded mysql_common v0.27.5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9cf699d2ff4ff23a6d6862a35727f4d5d3567dae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0649240eb572f68b8a60e604a25cb925eff86df2988f9c15e94a1fbfc8cbd056
[INFO] running `Command { std: "docker" "start" "-a" "0649240eb572f68b8a60e604a25cb925eff86df2988f9c15e94a1fbfc8cbd056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0649240eb572f68b8a60e604a25cb925eff86df2988f9c15e94a1fbfc8cbd056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0649240eb572f68b8a60e604a25cb925eff86df2988f9c15e94a1fbfc8cbd056", kill_on_drop: false }`
[INFO] [stdout] 0649240eb572f68b8a60e604a25cb925eff86df2988f9c15e94a1fbfc8cbd056
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9cf699d2ff4ff23a6d6862a35727f4d5d3567dae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8046bc4368f5d662fd59051abee2235e5c1dcb6674dae7a3b05794841eccdb12
[INFO] running `Command { std: "docker" "start" "-a" "8046bc4368f5d662fd59051abee2235e5c1dcb6674dae7a3b05794841eccdb12", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling frunk_core v0.4.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking funty v1.2.0
[INFO] [stderr]    Compiling mysql v21.0.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking saturating v0.1.0
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling io-enum v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.2.2
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking wyz v0.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking lru v0.6.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking bitvec v0.22.3
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.21.1
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.2
[INFO] [stderr]     Checking lexical v5.2.1
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rand v0.8.4
[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-1.0.76/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=fc41de71989a5c37 -C extra-filename=-fc41de71989a5c37 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-772dd07a1e61907d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-74e2041096ba817a.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1256a373de2a2211.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8046bc4368f5d662fd59051abee2235e5c1dcb6674dae7a3b05794841eccdb12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8046bc4368f5d662fd59051abee2235e5c1dcb6674dae7a3b05794841eccdb12", kill_on_drop: false }`
[INFO] [stdout] 8046bc4368f5d662fd59051abee2235e5c1dcb6674dae7a3b05794841eccdb12