[INFO] cloning repository https://github.com/messense/fasttext-serving
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/messense/fasttext-serving" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessense%2Ffasttext-serving", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessense%2Ffasttext-serving'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f2e741a11c8ae14637c79bd9e4a57d05e2b6ba1
[INFO] documenting messense/fasttext-serving 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%2Fmessense%2Ffasttext-serving" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/messense/fasttext-serving 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/messense/fasttext-serving
[INFO] finished tweaking git repo https://github.com/messense/fasttext-serving
[INFO] tweaked toml for git repo https://github.com/messense/fasttext-serving written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/messense/fasttext-serving 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded time-macros v0.1.1
[INFO] [stderr]   Downloaded tonic-reflection v0.2.0
[INFO] [stderr]   Downloaded time-macros-impl v0.1.2
[INFO] [stderr]   Downloaded standback v0.2.17
[INFO] [stderr]   Downloaded language-tags v0.3.2
[INFO] [stderr]   Downloaded bytestring v1.0.0
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded semver v0.11.0
[INFO] [stderr]   Downloaded actix-codec v0.4.0
[INFO] [stderr]   Downloaded actix-service v2.0.0
[INFO] [stderr]   Downloaded tower-layer v0.3.1
[INFO] [stderr]   Downloaded mimalloc v0.1.26
[INFO] [stderr]   Downloaded hyper-timeout v0.4.1
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded tokio-stream v0.1.7
[INFO] [stderr]   Downloaded pin-project v1.0.7
[INFO] [stderr]   Downloaded tokio v1.8.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded pretty_env_logger v0.4.0
[INFO] [stderr]   Downloaded sha-1 v0.9.6
[INFO] [stderr]   Downloaded local-channel v0.1.2
[INFO] [stderr]   Downloaded actix-tls v3.0.0-beta.5
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded paste v1.0.5
[INFO] [stderr]   Downloaded derive_more v0.99.16
[INFO] [stderr]   Downloaded actix-http v3.0.0-beta.8
[INFO] [stderr]   Downloaded actix-server v2.0.0-beta.5
[INFO] [stderr]   Downloaded tower v0.4.8
[INFO] [stderr]   Downloaded prost-types v0.8.0
[INFO] [stderr]   Downloaded tokio-io-timeout v1.1.1
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.22
[INFO] [stderr]   Downloaded semver-parser v0.10.2
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] [stderr]   Downloaded fs_extra v1.2.0
[INFO] [stderr]   Downloaded time v0.2.27
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded const_fn v0.4.8
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded actix-router v0.2.7
[INFO] [stderr]   Downloaded actix-utils v3.0.0
[INFO] [stderr]   Downloaded actix-web v4.0.0-beta.8
[INFO] [stderr]   Downloaded pin-project-internal v1.0.7
[INFO] [stderr]   Downloaded tracing-futures v0.2.5
[INFO] [stderr]   Downloaded tonic v0.5.0
[INFO] [stderr]   Downloaded prost-derive v0.8.0
[INFO] [stderr]   Downloaded multimap v0.8.3
[INFO] [stderr]   Downloaded prost v0.8.0
[INFO] [stderr]   Downloaded local-waker v0.1.1
[INFO] [stderr]   Downloaded actix-web-codegen v0.5.0-beta.3
[INFO] [stderr]   Downloaded anyhow v1.0.42
[INFO] [stderr]   Downloaded tonic-build v0.5.0
[INFO] [stderr]   Downloaded prost-build v0.8.0
[INFO] [stderr]   Downloaded cfasttext-sys v0.6.0
[INFO] [stderr]   Downloaded fasttext v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] a350599949d23f6491372e784e0a558591ae9130ff5e21eac4e58bb58ab7a95f
[INFO] running `Command { std: "docker" "start" "-a" "a350599949d23f6491372e784e0a558591ae9130ff5e21eac4e58bb58ab7a95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a350599949d23f6491372e784e0a558591ae9130ff5e21eac4e58bb58ab7a95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a350599949d23f6491372e784e0a558591ae9130ff5e21eac4e58bb58ab7a95f", kill_on_drop: false }`
[INFO] [stdout] a350599949d23f6491372e784e0a558591ae9130ff5e21eac4e58bb58ab7a95f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] ae11473d9313078bb185797303c3ef9dd42a2c008ec669c95bd2168b4cc68774
[INFO] running `Command { std: "docker" "start" "-a" "ae11473d9313078bb185797303c3ef9dd42a2c008ec669c95bd2168b4cc68774", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking local-waker v0.1.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking actix-utils v3.0.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]     Checking actix-service v2.0.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling cfasttext-sys v0.6.0
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling prost-build v0.8.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[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-1.0.73/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"' --cfg 'feature="visit-mut"' -C metadata=afa8abaed9ab1282 -C extra-filename=-afa8abaed9ab1282 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-299b9ca6a9d0cc38.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d0075634733a88c2.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-521ae656dc054791.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" "ae11473d9313078bb185797303c3ef9dd42a2c008ec669c95bd2168b4cc68774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae11473d9313078bb185797303c3ef9dd42a2c008ec669c95bd2168b4cc68774", kill_on_drop: false }`
[INFO] [stdout] ae11473d9313078bb185797303c3ef9dd42a2c008ec669c95bd2168b4cc68774
