[INFO] fetching crate salmon 0.5.0...
[INFO] documenting salmon-0.5.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate salmon 0.5.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate salmon 0.5.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salmon 0.5.0
[INFO] finished tweaking crates.io crate salmon 0.5.0
[INFO] tweaked toml for crates.io crate salmon 0.5.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] daa74f994e598253e629fcb2628ffa75be5e19a550c8a89b6221f3338002c3e0
[INFO] running `Command { std: "docker" "start" "-a" "daa74f994e598253e629fcb2628ffa75be5e19a550c8a89b6221f3338002c3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daa74f994e598253e629fcb2628ffa75be5e19a550c8a89b6221f3338002c3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daa74f994e598253e629fcb2628ffa75be5e19a550c8a89b6221f3338002c3e0", kill_on_drop: false }`
[INFO] [stdout] daa74f994e598253e629fcb2628ffa75be5e19a550c8a89b6221f3338002c3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cad34184deefd4c72f706f9e16bde97027386a9a0525c73f2bcb5004d709a16e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cad34184deefd4c72f706f9e16bde97027386a9a0525c73f2bcb5004d709a16e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.5.3
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr] error: could not compile `cssparser`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.25.9/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=95f3b7e2fd947c79 -C extra-filename=-95f3b7e2fd947c79 --out-dir /opt/rustwide/target/debug/build/cssparser-95f3b7e2fd947c79 -L dependency=/opt/rustwide/target/debug/deps --extern autocfg=/opt/rustwide/target/debug/deps/libautocfg-0781ad41a8ecd984.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d3dc0cb999b3c41d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-75a4c566bf65e716.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e0b6245f6b37ce36.rlib --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" "cad34184deefd4c72f706f9e16bde97027386a9a0525c73f2bcb5004d709a16e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cad34184deefd4c72f706f9e16bde97027386a9a0525c73f2bcb5004d709a16e", kill_on_drop: false }`
[INFO] [stdout] cad34184deefd4c72f706f9e16bde97027386a9a0525c73f2bcb5004d709a16e