[INFO] fetching crate pass 0.1.0...
[INFO] documenting pass-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pass 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pass 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 pass 0.1.0
[INFO] finished tweaking crates.io crate pass 0.1.0
[INFO] tweaked toml for crates.io crate pass 0.1.0 written to /workspace/builds/worker-0/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]  Downloading crates ...
[INFO] [stderr]   Downloaded theban_db v0.5.2
[INFO] [stderr]   Downloaded theban_interval_tree v0.6.2
[INFO] [stderr]   Downloaded theban_db_interface v0.2.0
[INFO] [stderr]   Downloaded theban_db v0.7.0
[INFO] [stderr]   Downloaded theban_db_server v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 541bebf890bfca0064c57d3e99ada48c6a0e6374ce4947a74e5da37d1290fa28
[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" "541bebf890bfca0064c57d3e99ada48c6a0e6374ce4947a74e5da37d1290fa28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "541bebf890bfca0064c57d3e99ada48c6a0e6374ce4947a74e5da37d1290fa28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541bebf890bfca0064c57d3e99ada48c6a0e6374ce4947a74e5da37d1290fa28", kill_on_drop: false }`
[INFO] [stdout] 541bebf890bfca0064c57d3e99ada48c6a0e6374ce4947a74e5da37d1290fa28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c55829588b2bc699fdb1519f9cd447f679a9c6b2003bf90f3bd4624ac6c06711
[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" "c55829588b2bc699fdb1519f9cd447f679a9c6b2003bf90f3bd4624ac6c06711", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking rmp v0.7.5
[INFO] [stderr]     Checking theban_interval_tree v0.7.1
[INFO] [stderr]     Checking theban_interval_tree v0.6.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/theban_interval_tree-0.6.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `theban_interval_tree`.
[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" "c55829588b2bc699fdb1519f9cd447f679a9c6b2003bf90f3bd4624ac6c06711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55829588b2bc699fdb1519f9cd447f679a9c6b2003bf90f3bd4624ac6c06711", kill_on_drop: false }`
[INFO] [stdout] c55829588b2bc699fdb1519f9cd447f679a9c6b2003bf90f3bd4624ac6c06711