[INFO] cloning repository https://github.com/QingchenDang/twemcache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/QingchenDang/twemcache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQingchenDang%2Ftwemcache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQingchenDang%2Ftwemcache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b9194ad9665b9696fe60a5e65ed33a9671d7336
[INFO] documenting QingchenDang/twemcache against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQingchenDang%2Ftwemcache" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/QingchenDang/twemcache on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/QingchenDang/twemcache
[INFO] finished tweaking git repo https://github.com/QingchenDang/twemcache
[INFO] tweaked toml for git repo https://github.com/QingchenDang/twemcache written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/QingchenDang/twemcache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/twitter/rustcommon`
[INFO] [stderr]     Updating git repository `https://github.com/swlynch99/httpencode`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.7.5
[INFO] [stderr]   Downloaded pin-project v1.0.1
[INFO] [stderr]   Downloaded csv v1.1.4
[INFO] [stderr]   Downloaded pin-project-internal v1.0.1
[INFO] [stderr]   Downloaded boring v1.0.3
[INFO] [stderr]   Downloaded oorandom v11.1.2
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] [stderr]   Downloaded boring-sys v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68b1cc269d7a2f073570b91ca8cc80f371fbb6af4318696e1b66211cb50d84bd
[INFO] running `Command { std: "docker" "start" "-a" "68b1cc269d7a2f073570b91ca8cc80f371fbb6af4318696e1b66211cb50d84bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68b1cc269d7a2f073570b91ca8cc80f371fbb6af4318696e1b66211cb50d84bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b1cc269d7a2f073570b91ca8cc80f371fbb6af4318696e1b66211cb50d84bd", kill_on_drop: false }`
[INFO] [stdout] 68b1cc269d7a2f073570b91ca8cc80f371fbb6af4318696e1b66211cb50d84bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa7a0cad19bb2d968f9cd9dc339131ac8f09f1b5db02b7d8b54a6d28a86a66fe
[INFO] running `Command { std: "docker" "start" "-a" "aa7a0cad19bb2d968f9cd9dc339131ac8f09f1b5db02b7d8b54a6d28a86a66fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling ccommon-rs v0.1.0 (/opt/rustwide/workdir/deps/ccommon/rust/ccommon-rs)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling boring-sys v1.0.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking httparse v1.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking rustcommon-logger v1.0.0 (https://github.com/twitter/rustcommon#2d70e44f)
[INFO] [stderr]     Checking mio v0.7.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking rustcommon-buffer v0.2.0 (https://github.com/twitter/rustcommon#2d70e44f)
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking httpencode v0.1.0 (https://github.com/swlynch99/httpencode#54e1dca7)
[INFO] [stderr]     Checking httpencode v0.1.0 (/opt/rustwide/workdir/src/rust-util/httpencode)
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]  Documenting httpencode v0.1.0 (/opt/rustwide/workdir/src/rust-util/httpencode)
[INFO] [stderr]  Documenting check_twemcache_http v0.1.0 (/opt/rustwide/workdir/test/server/twemcache-http)
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[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-1.0.48/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --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=d737b6eed3e8b3bc -C extra-filename=-d737b6eed3e8b3bc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d3dee8c8cad6c7dc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-21e5dd92aa479055.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-9a686107da5a42d9.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aa7a0cad19bb2d968f9cd9dc339131ac8f09f1b5db02b7d8b54a6d28a86a66fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7a0cad19bb2d968f9cd9dc339131ac8f09f1b5db02b7d8b54a6d28a86a66fe", kill_on_drop: false }`
[INFO] [stdout] aa7a0cad19bb2d968f9cd9dc339131ac8f09f1b5db02b7d8b54a6d28a86a66fe
