[INFO] fetching crate borealis_codegen 0.1.0...
[INFO] documenting borealis_codegen-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate borealis_codegen 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate borealis_codegen 0.1.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate borealis_codegen 0.1.0
[INFO] finished tweaking crates.io crate borealis_codegen 0.1.0
[INFO] tweaked toml for crates.io crate borealis_codegen 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--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 borealis v0.1.0
[INFO] [stderr]   Downloaded regex_macros v0.1.38
[INFO] [stderr]   Downloaded tendril v0.2.4
[INFO] [stderr]   Downloaded quasi_macros v0.9.0
[INFO] [stderr]   Downloaded quasi v0.9.0
[INFO] [stderr]   Downloaded aster v0.15.0
[INFO] [stderr]   Downloaded quasi_codegen v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-08-29" "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] ff02d0d79b269179fccaa9a77a1345c356d3eecc81d967cbe9b0270c62992f20
[INFO] running `Command { std: "docker" "start" "-a" "ff02d0d79b269179fccaa9a77a1345c356d3eecc81d967cbe9b0270c62992f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff02d0d79b269179fccaa9a77a1345c356d3eecc81d967cbe9b0270c62992f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff02d0d79b269179fccaa9a77a1345c356d3eecc81d967cbe9b0270c62992f20", kill_on_drop: false }`
[INFO] [stdout] ff02d0d79b269179fccaa9a77a1345c356d3eecc81d967cbe9b0270c62992f20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf15c560e98e72e41d3793b17bda797f91c7bd250a9162a2ca7c053b588ddd9a
[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" "cf15c560e98e72e41d3793b17bda797f91c7bd250a9162a2ca7c053b588ddd9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling aster v0.15.0
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.15.0/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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cf15c560e98e72e41d3793b17bda797f91c7bd250a9162a2ca7c053b588ddd9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf15c560e98e72e41d3793b17bda797f91c7bd250a9162a2ca7c053b588ddd9a", kill_on_drop: false }`
[INFO] [stdout] cf15c560e98e72e41d3793b17bda797f91c7bd250a9162a2ca7c053b588ddd9a