[INFO] fetching crate hexavalent 0.1.2...
[INFO] documenting hexavalent-0.1.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate hexavalent 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hexavalent 0.1.2 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] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking crates.io crate hexavalent 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hexavalent 0.1.2
[INFO] tweaked toml for crates.io crate hexavalent 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate hexavalent 0.1.2 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 694f15bc9ab8ce60e99b157819b77af34d3b94c7ed56253c66398d3fb28a53f1
[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" "694f15bc9ab8ce60e99b157819b77af34d3b94c7ed56253c66398d3fb28a53f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "694f15bc9ab8ce60e99b157819b77af34d3b94c7ed56253c66398d3fb28a53f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "694f15bc9ab8ce60e99b157819b77af34d3b94c7ed56253c66398d3fb28a53f1", kill_on_drop: false }`
[INFO] [stdout] 694f15bc9ab8ce60e99b157819b77af34d3b94c7ed56253c66398d3fb28a53f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c4719f8e5f0e7f5c0a52c00d787ede6da17c7fad8626ccb455c8558d5341019d
[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" "c4719f8e5f0e7f5c0a52c00d787ede6da17c7fad8626ccb455c8558d5341019d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]    Compiling standback v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stdout] error: expected identifier
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/time-macros-impl-0.1.0/src/lib.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |               pub fn $name(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 | / impl_macros! {
[INFO] [stdout] 91 | |     time: Time,
[INFO] [stdout] 92 | |     offset: Offset,
[INFO] [stdout] 93 | |     date: Date,
[INFO] [stdout] 94 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `time-macros-impl`.
[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" "c4719f8e5f0e7f5c0a52c00d787ede6da17c7fad8626ccb455c8558d5341019d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4719f8e5f0e7f5c0a52c00d787ede6da17c7fad8626ccb455c8558d5341019d", kill_on_drop: false }`
[INFO] [stdout] c4719f8e5f0e7f5c0a52c00d787ede6da17c7fad8626ccb455c8558d5341019d