[INFO] cloning repository https://github.com/Avarel/rambleathon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Avarel/rambleathon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAvarel%2Frambleathon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAvarel%2Frambleathon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e6ce1bbab586d980ecf46216310cc92f90260fea
[INFO] documenting Avarel/rambleathon against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAvarel%2Frambleathon" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Avarel/rambleathon on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Avarel/rambleathon
[INFO] finished tweaking git repo https://github.com/Avarel/rambleathon
[INFO] tweaked toml for git repo https://github.com/Avarel/rambleathon written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/Avarel/rambleathon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05643e9fe88e0543a3c4f73d22b13a2891ea65590d006555e1c4f4981a3f2e98
[INFO] running `Command { std: "docker" "start" "-a" "05643e9fe88e0543a3c4f73d22b13a2891ea65590d006555e1c4f4981a3f2e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05643e9fe88e0543a3c4f73d22b13a2891ea65590d006555e1c4f4981a3f2e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05643e9fe88e0543a3c4f73d22b13a2891ea65590d006555e1c4f4981a3f2e98", kill_on_drop: false }`
[INFO] [stdout] 05643e9fe88e0543a3c4f73d22b13a2891ea65590d006555e1c4f4981a3f2e98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d03cfc64f0d629a5eadcfa61fe3af6e8cf1566319f8b0028ddb7f2a47bea6f6f
[INFO] running `Command { std: "docker" "start" "-a" "d03cfc64f0d629a5eadcfa61fe3af6e8cf1566319f8b0028ddb7f2a47bea6f6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling gio v0.15.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling libayatana-appindicator v0.2.0
[INFO] [stderr]    Compiling tao v0.8.4
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling wry v0.16.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling gtk v0.15.5
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking http v0.2.7
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]    Compiling cfg-expr v0.10.2
[INFO] [stderr]    Compiling cfg-expr v0.9.1
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling system-deps v5.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]    Compiling soup2-sys v0.2.0
[INFO] [stderr]    Compiling javascriptcore-rs-sys v0.4.0
[INFO] [stderr]    Compiling glib-sys v0.15.10
[INFO] [stderr]    Compiling gobject-sys v0.15.10
[INFO] [stderr]    Compiling gdk-sys v0.15.1
[INFO] [stderr]    Compiling gio-sys v0.15.10
[INFO] [stderr]    Compiling atk-sys v0.15.1
[INFO] [stderr]    Compiling pango-sys v0.15.10
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.15.10
[INFO] [stderr]    Compiling cairo-sys-rs v0.15.1
[INFO] [stderr]    Compiling gtk-sys v0.15.3
[INFO] [stderr]    Compiling webkit2gtk-sys v0.18.0
[INFO] [stderr]    Compiling gdkx11-sys v0.15.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sha-1 v0.9.8
[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-1.0.94/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="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=bcc9a48f06d70f69 -C extra-filename=-bcc9a48f06d70f69 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f17c8d68702ac8b8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9a281042af34a373.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-fd76287d6d6a8807.rmeta --cap-lints allow --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" "d03cfc64f0d629a5eadcfa61fe3af6e8cf1566319f8b0028ddb7f2a47bea6f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03cfc64f0d629a5eadcfa61fe3af6e8cf1566319f8b0028ddb7f2a47bea6f6f", kill_on_drop: false }`
[INFO] [stdout] d03cfc64f0d629a5eadcfa61fe3af6e8cf1566319f8b0028ddb7f2a47bea6f6f