[INFO] fetching crate amethyst_assets 0.15.3...
[INFO] documenting amethyst_assets-0.15.3 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate amethyst_assets 0.15.3 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate amethyst_assets 0.15.3 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 amethyst_assets 0.15.3
[INFO] finished tweaking crates.io crate amethyst_assets 0.15.3
[INFO] tweaked toml for crates.io crate amethyst_assets 0.15.3 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate crates.io crate amethyst_assets 0.15.3 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 ctor v0.1.15
[INFO] [stderr]   Downloaded inventory-impl v0.1.8
[INFO] [stderr]   Downloaded inventory v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] a5b8b25da023d23f14d8a55df60a95b2fdcca27f31846e3d0fe474f4a276b188
[INFO] running `Command { std: "docker" "start" "-a" "a5b8b25da023d23f14d8a55df60a95b2fdcca27f31846e3d0fe474f4a276b188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5b8b25da023d23f14d8a55df60a95b2fdcca27f31846e3d0fe474f4a276b188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b8b25da023d23f14d8a55df60a95b2fdcca27f31846e3d0fe474f4a276b188", kill_on_drop: false }`
[INFO] [stdout] a5b8b25da023d23f14d8a55df60a95b2fdcca27f31846e3d0fe474f4a276b188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 654e97b0340276865f89457468bcf4fff5a25a954dee0a3e41f25226ca9a47f7
[INFO] running `Command { std: "docker" "start" "-a" "654e97b0340276865f89457468bcf4fff5a25a954dee0a3e41f25226ca9a47f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]     Checking mint v0.5.5
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.18/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="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=cc6f85808d425969 -C extra-filename=-cc6f85808d425969 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (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" "654e97b0340276865f89457468bcf4fff5a25a954dee0a3e41f25226ca9a47f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654e97b0340276865f89457468bcf4fff5a25a954dee0a3e41f25226ca9a47f7", kill_on_drop: false }`
[INFO] [stdout] 654e97b0340276865f89457468bcf4fff5a25a954dee0a3e41f25226ca9a47f7
