[INFO] fetching crate char_classifier 0.0.0...
[INFO] documenting char_classifier-0.0.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate char_classifier 0.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate char_classifier 0.0.0 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 char_classifier 0.0.0
[INFO] finished tweaking crates.io crate char_classifier 0.0.0
[INFO] tweaked toml for crates.io crate char_classifier 0.0.0 written to /workspace/builds/worker-13/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.2.6
[INFO] [stderr]   Downloaded ref_slice v1.2.0
[INFO] [stderr]   Downloaded barrel v0.5.8
[INFO] [stderr]   Downloaded range-map v0.1.5
[INFO] [stderr]   Downloaded optional v0.5.0
[INFO] [stderr]   Downloaded cfg-regex v0.0.0
[INFO] [stderr]   Downloaded panini_macros v0.0.0
[INFO] [stderr]   Downloaded panini v0.0.0
[INFO] [stderr]   Downloaded refinery-migrations v0.1.0
[INFO] [stderr]   Downloaded enum_stream_codegen v0.0.0
[INFO] [stderr]   Downloaded refinery v0.1.10
[INFO] [stderr]   Downloaded refinery-macros v0.1.0
[INFO] [stderr]   Downloaded bit-matrix v0.2.0
[INFO] [stderr]   Downloaded quasi_codegen v0.10.0
[INFO] [stderr]   Downloaded quasi v0.10.0
[INFO] [stderr]   Downloaded cfg v0.3.0
[INFO] [stderr]   Downloaded panini_codegen v0.0.0
[INFO] [stderr]   Downloaded panini_macros_snapshot v0.0.0
[INFO] [stderr]   Downloaded aho-corasick v0.4.1
[INFO] [stderr]   Downloaded bit-matrix v0.6.0
[INFO] [stderr]   Downloaded cfg v0.5.0
[INFO] [stderr]   Downloaded regex_dfa v0.4.0
[INFO] [stderr]   Downloaded gearley v0.0.4
[INFO] [stderr]   Downloaded quasi_macros v0.10.0
[INFO] [stderr]   Downloaded aster v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 71047a9395eafe7bc2728dcd2b8a5d5b5055710057643830a9a1288a9acdbc09
[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" "71047a9395eafe7bc2728dcd2b8a5d5b5055710057643830a9a1288a9acdbc09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71047a9395eafe7bc2728dcd2b8a5d5b5055710057643830a9a1288a9acdbc09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71047a9395eafe7bc2728dcd2b8a5d5b5055710057643830a9a1288a9acdbc09", kill_on_drop: false }`
[INFO] [stdout] 71047a9395eafe7bc2728dcd2b8a5d5b5055710057643830a9a1288a9acdbc09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 46cd43a0fa2000de1bf962ff160b6c27d3631b7bed83a0f3eeb234033847f1ac
[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" "46cd43a0fa2000de1bf962ff160b6c27d3631b7bed83a0f3eeb234033847f1ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling barrel v0.5.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling aster v0.16.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling regex-syntax v0.2.6
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling memmem v0.1.1
[INFO] [stderr]    Compiling ref_slice v1.2.0
[INFO] [stderr]    Compiling quasi v0.10.0
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.16.0/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aster`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.10.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "46cd43a0fa2000de1bf962ff160b6c27d3631b7bed83a0f3eeb234033847f1ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46cd43a0fa2000de1bf962ff160b6c27d3631b7bed83a0f3eeb234033847f1ac", kill_on_drop: false }`
[INFO] [stdout] 46cd43a0fa2000de1bf962ff160b6c27d3631b7bed83a0f3eeb234033847f1ac