[INFO] cloning repository https://github.com/djmitche/rask
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/rask" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Frask", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Frask'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8533c86f5237146fb1a289bacbd37e1bd6c6500
[INFO] documenting djmitche/rask against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Frask" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/djmitche/rask on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/djmitche/rask
[INFO] finished tweaking git repo https://github.com/djmitche/rask
[INFO] tweaked toml for git repo https://github.com/djmitche/rask written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/djmitche/rask already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded textwrap v0.13.4
[INFO] [stderr]   Downloaded ureq v2.1.0
[INFO] [stderr]   Downloaded toml_edit v0.2.0
[INFO] [stderr]   Downloaded open v1.7.0
[INFO] [stderr]   Downloaded kv v0.10.0
[INFO] [stderr]   Downloaded gitignore v1.0.7
[INFO] [stderr]   Downloaded handlebars v4.0.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.7.2
[INFO] [stderr]   Downloaded ammonia v3.1.1
[INFO] [stderr]   Downloaded built v0.5.1
[INFO] [stderr]   Downloaded elasticlunr-rs v2.3.11
[INFO] [stderr]   Downloaded protobuf v2.22.1
[INFO] [stderr]   Downloaded lmdb-rkv-sys v0.11.0
[INFO] [stderr]   Downloaded lmdb-rkv v0.14.0
[INFO] [stderr]   Downloaded cargo-lock v7.0.0
[INFO] [stderr]   Downloaded mdbook v0.4.10
[INFO] [stderr]   Downloaded rstest v0.10.0
[INFO] [stderr]   Downloaded lmdb-rkv-sys v0.9.6
[INFO] [stderr]   Downloaded lmdb-rkv v0.12.3
[INFO] [stderr]   Downloaded iso8601-duration v0.1.0
[INFO] [stderr]   Downloaded tindercrypt v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b6a0004d8ce27d386a7e27cdff7cf6a9a7bf940131486b5c897987477e05aa9
[INFO] running `Command { std: "docker" "start" "-a" "9b6a0004d8ce27d386a7e27cdff7cf6a9a7bf940131486b5c897987477e05aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b6a0004d8ce27d386a7e27cdff7cf6a9a7bf940131486b5c897987477e05aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6a0004d8ce27d386a7e27cdff7cf6a9a7bf940131486b5c897987477e05aa9", kill_on_drop: false }`
[INFO] [stdout] 9b6a0004d8ce27d386a7e27cdff7cf6a9a7bf940131486b5c897987477e05aa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 106820b0767ef7ec10653f1e52f4090f1ad81b9f1ba3d48dfe21250ed60f62cc
[INFO] running `Command { std: "docker" "start" "-a" "106820b0767ef7ec10653f1e52f4090f1ad81b9f1ba3d48dfe21250ed60f62cc", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling async-trait v0.1.49
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]    Compiling protobuf v2.22.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling tindercrypt v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking textwrap v0.13.4
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.9.6
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.11.0
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking console v0.14.1
[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-1.0.72/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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=822a70933f087bff -C extra-filename=-822a70933f087bff --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5d20935e74fe9af6.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b55a1e2670e4074e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-12009cf1a2496f6d.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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "106820b0767ef7ec10653f1e52f4090f1ad81b9f1ba3d48dfe21250ed60f62cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106820b0767ef7ec10653f1e52f4090f1ad81b9f1ba3d48dfe21250ed60f62cc", kill_on_drop: false }`
[INFO] [stdout] 106820b0767ef7ec10653f1e52f4090f1ad81b9f1ba3d48dfe21250ed60f62cc
