[INFO] fetching crate cobalt-bin 0.16.5...
[INFO] documenting cobalt-bin-0.16.5 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate cobalt-bin 0.16.5 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate cobalt-bin 0.16.5 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 crates.io crate cobalt-bin 0.16.5
[INFO] finished tweaking crates.io crate cobalt-bin 0.16.5
[INFO] tweaked toml for crates.io crate cobalt-bin 0.16.5 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate crates.io crate cobalt-bin 0.16.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 0587b83de69d413388b1c059083daa88aedcf76320ce5c14a854b54ff09de6df
[INFO] running `Command { std: "docker" "start" "-a" "0587b83de69d413388b1c059083daa88aedcf76320ce5c14a854b54ff09de6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0587b83de69d413388b1c059083daa88aedcf76320ce5c14a854b54ff09de6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0587b83de69d413388b1c059083daa88aedcf76320ce5c14a854b54ff09de6df", kill_on_drop: false }`
[INFO] [stdout] 0587b83de69d413388b1c059083daa88aedcf76320ce5c14a854b54ff09de6df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] fa063820f41d645ca3ce5caee6dcd1a13c846fca5a84c2c53dde44987572a64b
[INFO] running `Command { std: "docker" "start" "-a" "fa063820f41d645ca3ce5caee6dcd1a13c846fca5a84c2c53dde44987572a64b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking regex-syntax v0.6.24
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking macro-utils v0.1.3
[INFO] [stderr]     Checking utf8-width v0.1.5
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking deunicode v1.2.1
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking cow-utils v0.1.2
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking minifier v0.0.39
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking html-escape v0.2.9
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking ghp v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking open v1.7.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.5.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking addr2line 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-1.0.71/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=79290356976d2c22 -C extra-filename=-79290356976d2c22 --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" "fa063820f41d645ca3ce5caee6dcd1a13c846fca5a84c2c53dde44987572a64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa063820f41d645ca3ce5caee6dcd1a13c846fca5a84c2c53dde44987572a64b", kill_on_drop: false }`
[INFO] [stdout] fa063820f41d645ca3ce5caee6dcd1a13c846fca5a84c2c53dde44987572a64b
