[INFO] cloning repository https://github.com/GNOME/librsvg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GNOME/librsvg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGNOME%2Flibrsvg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGNOME%2Flibrsvg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c90e0d1b3ec3881593c4ea948df7a3fac95d613
[INFO] documenting GNOME/librsvg 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%2FGNOME%2Flibrsvg" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/GNOME/librsvg 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/GNOME/librsvg
[INFO] finished tweaking git repo https://github.com/GNOME/librsvg
[INFO] tweaked toml for git repo https://github.com/GNOME/librsvg written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/GNOME/librsvg 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]  Downloading crates ...
[INFO] [stderr]   Downloaded locale_config v0.3.0
[INFO] [stderr]   Downloaded test-generator v0.3.0
[INFO] [stderr]   Downloaded pom v3.2.0
[INFO] [stderr]   Downloaded lopdf v0.26.0
[INFO] [stderr]   Downloaded pangocairo v0.14.0
[INFO] [stderr]   Downloaded assert_cmd v1.0.7
[INFO] [stderr]   Downloaded strum v0.21.0
[INFO] [stderr]   Downloaded predicates v2.0.0
[INFO] [stderr]   Downloaded semver v1.0.3
[INFO] [stderr]   Downloaded glib-macros v0.14.1
[INFO] [stderr]   Downloaded pangocairo-sys v0.14.0
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v2.11.2
[INFO] [stderr]   Downloaded glib v0.14.2
[INFO] [stderr]   Downloaded cairo-rs v0.14.1
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] [stderr]   Downloaded system-deps v3.1.2
[INFO] [stderr]   Downloaded strum_macros v0.21.1
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded difflib v0.4.0
[INFO] [stderr]   Downloaded rgb v0.8.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 503192e2b719589c9f437b79f59f5bfab5264489600c136a37eefef0a4d078e7
[INFO] running `Command { std: "docker" "start" "-a" "503192e2b719589c9f437b79f59f5bfab5264489600c136a37eefef0a4d078e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "503192e2b719589c9f437b79f59f5bfab5264489600c136a37eefef0a4d078e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "503192e2b719589c9f437b79f59f5bfab5264489600c136a37eefef0a4d078e7", kill_on_drop: false }`
[INFO] [stdout] 503192e2b719589c9f437b79f59f5bfab5264489600c136a37eefef0a4d078e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 13c1b8709dae5c7352965ab7a7591ee7104ff86be38ce5806d882e926d7d0db1
[INFO] running `Command { std: "docker" "start" "-a" "13c1b8709dae5c7352965ab7a7591ee7104ff86be38ce5806d882e926d7d0db1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling gio v0.14.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling cfg-expr v0.7.4
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr] error: could not compile `language-tags`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name language_tags --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/language-tags-0.3.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=2e952b2b67511dfc -C extra-filename=-2e952b2b67511dfc --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" "13c1b8709dae5c7352965ab7a7591ee7104ff86be38ce5806d882e926d7d0db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c1b8709dae5c7352965ab7a7591ee7104ff86be38ce5806d882e926d7d0db1", kill_on_drop: false }`
[INFO] [stdout] 13c1b8709dae5c7352965ab7a7591ee7104ff86be38ce5806d882e926d7d0db1