[INFO] cloning repository https://github.com/thekidxp/actix_compliment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thekidxp/actix_compliment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekidxp%2Factix_compliment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekidxp%2Factix_compliment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73c7e8b91eba036ba762fb4493959245485b60b9
[INFO] documenting thekidxp/actix_compliment against beta-2021-09-08 for beta-1.56-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekidxp%2Factix_compliment" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thekidxp/actix_compliment on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thekidxp/actix_compliment
[INFO] finished tweaking git repo https://github.com/thekidxp/actix_compliment
[INFO] tweaked toml for git repo https://github.com/thekidxp/actix_compliment written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/thekidxp/actix_compliment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7b41931a6767c5c00d00ac597f18aafee93f8a64eaea9dadecc0457ee03b505
[INFO] running `Command { std: "docker" "start" "-a" "f7b41931a6767c5c00d00ac597f18aafee93f8a64eaea9dadecc0457ee03b505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7b41931a6767c5c00d00ac597f18aafee93f8a64eaea9dadecc0457ee03b505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b41931a6767c5c00d00ac597f18aafee93f8a64eaea9dadecc0457ee03b505", kill_on_drop: false }`
[INFO] [stdout] f7b41931a6767c5c00d00ac597f18aafee93f8a64eaea9dadecc0457ee03b505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cb1d4f9828615e5c37d1c5bfbbdd34f3b6372e08e032a33c4597e81df7fad7c
[INFO] running `Command { std: "docker" "start" "-a" "6cb1d4f9828615e5c37d1c5bfbbdd34f3b6372e08e032a33c4597e81df7fad7c", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Compiling libc v0.2.62
[INFO] [stderr] Checking cfg-if v0.1.9
[INFO] [stderr] Compiling autocfg v0.1.6
[INFO] [stderr] Compiling semver-parser v0.7.0
[INFO] [stderr] Checking lazy_static v1.4.0
[INFO] [stderr] Compiling log v0.4.8
[INFO] [stderr] Compiling byteorder v1.3.2
[INFO] [stderr] Checking rand_core v0.4.2
[INFO] [stderr] Checking futures v0.1.29
[INFO] [stderr] Checking smallvec v0.6.10
[INFO] [stderr] Compiling proc-macro2 v0.4.30
[INFO] [stderr] Compiling unicode-xid v0.1.0
[INFO] [stderr] Compiling memchr v2.2.1
[INFO] [stderr] Compiling syn v0.15.44
[INFO] [stderr] Compiling cc v1.0.45
[INFO] [stderr] Checking slab v0.4.2
[INFO] [stderr] Compiling version_check v0.1.5
[INFO] [stderr] Checking fnv v1.0.6
[INFO] [stderr] Compiling proc-macro2 v1.0.3
[INFO] [stderr] Checking stable_deref_trait v1.1.1
[INFO] [stderr] Checking scopeguard v0.3.3
[INFO] [stderr] Compiling unicode-xid v0.2.0
[INFO] [stderr] Compiling syn v1.0.5
[INFO] [stderr] Checking matches v0.1.8
[INFO] [stderr] Checking itoa v0.4.4
[INFO] [stderr] Compiling serde v1.0.101
[INFO] [stderr] Compiling regex-syntax v0.6.12
[INFO] [stderr] Checking scopeguard v1.0.0
[INFO] [stderr] Compiling failure_derive v0.1.5
[INFO] [stderr] Checking rustc-demangle v0.1.16
[INFO] [stderr] Compiling getrandom v0.1.12
[INFO] [stderr] Compiling ryu v1.0.0
[INFO] [stderr] Checking quick-error v1.2.2
[INFO] [stderr] Checking percent-encoding v1.0.1
[INFO] [stderr] Checking ppv-lite86 v0.2.5
[INFO] [stderr] Checking linked-hash-map v0.5.2
[INFO] [stderr] Checking copyless v0.1.4
[INFO] [stderr] Compiling crc32fast v1.2.0
[INFO] [stderr] Compiling encoding_rs v0.8.19
[INFO] [stderr] Checking percent-encoding v2.1.0
[INFO] [stderr] Compiling httparse v1.3.4
[INFO] [stderr] Compiling bitflags v1.1.0
[INFO] [stderr] Checking either v1.5.2
[INFO] [stderr] Checking arc-swap v0.4.2
[INFO] [stderr] Compiling ucd-trie v0.1.2
[INFO] [stderr] Checking dtoa v0.4.4
[INFO] [stderr] Checking indexmap v1.2.0
[INFO] [stderr] Checking sha1 v0.6.0
[INFO] [stderr] Checking language-tags v0.2.2
[INFO] [stderr] Compiling maplit v1.0.2
[INFO] [stderr] Compiling v_htmlescape v0.4.5
[INFO] [stderr] Checking same-file v1.0.5
[INFO] [stderr] Checking motivations v1.1.2
[INFO] [stderr] Compiling semver v0.9.0
[INFO] [stderr] Checking pest v2.1.2
[INFO] [stderr] Checking walkdir v2.2.9
[INFO] [stderr] Checking owning_ref v0.4.0
[INFO] [stderr] Checking unicode-normalization v0.1.8
[INFO] [stderr] Checking unicode-bidi v0.3.4
[INFO] [stderr] Checking lock_api v0.3.1
[INFO] [stderr] Checking lru-cache v0.1.2
[INFO] [stderr] Compiling thread_local v0.3.6
[INFO] [stderr] Checking crossbeam-utils v0.6.6
[INFO] [stderr] Compiling rustc_version v0.2.3
[INFO] [stderr] Checking rand_core v0.3.1
[INFO] [stderr] Checking rand_jitter v0.1.4
[INFO] [stderr] Checking lock_api v0.1.5
[INFO] [stderr] Checking c2-chacha v0.2.2
[INFO] [stderr] Compiling unicase v2.5.1
[INFO] [stderr] Compiling nom v4.2.3
[INFO] [stderr] Checking rand_xorshift v0.1.1
[INFO] [stderr] Checking rand_isaac v0.1.1
[INFO] [stderr] Checking rand_hc v0.1.0
[INFO] [stderr] Compiling backtrace-sys v0.1.31
[INFO] [stderr] Compiling brotli-sys v0.3.2
[INFO] [stderr] Compiling miniz-sys v0.1.12
[INFO] [stderr] Checking base64 v0.10.1
[INFO] [stderr] Compiling parking_lot_core v0.4.0
[INFO] [stderr] Compiling parking_lot_core v0.6.2
[INFO] [stderr] Compiling parking_lot v0.9.0
[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] Checking iovec v0.1.2
[INFO] [stderr] Checking rand_os v0.1.3
[INFO] [stderr] Checking net2 v0.2.33
[INFO] [stderr] Checking num_cpus v1.10.1
[INFO] [stderr] Checking hostname v0.1.5
[INFO] [stderr] Checking socket2 v0.3.11
[INFO] [stderr] Checking time v0.1.42
[INFO] [stderr] Checking signal-hook-registry v1.1.1
[INFO] [stderr] Compiling quote v0.6.13
[INFO] [stderr] Compiling aho-corasick v0.7.6
[INFO] [stderr] Checking resolv-conf v0.6.2
[INFO] [stderr] Checking rand_core v0.5.1
[INFO] [stderr] Checking bytes v0.4.12
[INFO] [stderr] Compiling quote v1.0.2
[INFO] [stderr] Checking signal-hook v0.1.10
[INFO] [stderr] Checking idna v0.1.5
[INFO] [stderr] Checking idna v0.2.0
[INFO] [stderr] Checking threadpool v1.7.1
[INFO] [stderr] Checking tokio-executor v0.1.8
[INFO] [stderr] Checking tokio-sync v0.1.6
[INFO] [stderr] Checking actix-service v0.4.2
[INFO] [stderr] Checking rand_chacha v0.2.1
[INFO] [stderr] Checking mio v0.6.19
[INFO] [stderr] Compiling pest_meta v2.1.2
[INFO] [stderr] Checking tokio-io v0.1.12
[INFO] [stderr] Checking tokio-timer v0.2.11
[INFO] [stderr] Checking tokio-current-thread v0.1.6
[INFO] [stderr] Checking http v0.1.18
[INFO] [stderr] Checking string v0.2.1
[INFO] [stderr] Checking mime v0.3.13
[INFO] [stderr] Compiling regex v1.3.1
[INFO] [stderr] Compiling mime_guess v2.0.1
[INFO] [stderr] Checking url v2.1.0
[INFO] [stderr] Checking url v1.7.2
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr]
[INFO] [stderr] Caused by:
[INFO] [stderr] process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/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="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"' -C metadata=23ba4a6f6c080a0c -C extra-filename=-23ba4a6f6c080a0c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-18f941bc31ab392e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8b5ff6b36ede5b66.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-09e70e8bcc039b17.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (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" "6cb1d4f9828615e5c37d1c5bfbbdd34f3b6372e08e032a33c4597e81df7fad7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb1d4f9828615e5c37d1c5bfbbdd34f3b6372e08e032a33c4597e81df7fad7c", kill_on_drop: false }`
[INFO] [stdout] 6cb1d4f9828615e5c37d1c5bfbbdd34f3b6372e08e032a33c4597e81df7fad7c