[INFO] fetching crate cxmr-tectonic 0.0.1...
[INFO] documenting cxmr-tectonic-0.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate cxmr-tectonic 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cxmr-tectonic 0.0.1 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 cxmr-tectonic 0.0.1
[INFO] finished tweaking crates.io crate cxmr-tectonic 0.0.1
[INFO] tweaked toml for crates.io crate cxmr-tectonic 0.0.1 written to /workspace/builds/worker-3/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9889f0a4c393c9769c111a7cab582c9fa3a7b09a9869174cfce06725d7066238
[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" "9889f0a4c393c9769c111a7cab582c9fa3a7b09a9869174cfce06725d7066238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9889f0a4c393c9769c111a7cab582c9fa3a7b09a9869174cfce06725d7066238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9889f0a4c393c9769c111a7cab582c9fa3a7b09a9869174cfce06725d7066238", kill_on_drop: false }`
[INFO] [stdout] 9889f0a4c393c9769c111a7cab582c9fa3a7b09a9869174cfce06725d7066238
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 647ecfd6f24f56347b33bca292c5f493c88e679bc144a074180f82639b438f1c
[INFO] running `Command { std: "docker" "start" "-a" "647ecfd6f24f56347b33bca292c5f493c88e679bc144a074180f82639b438f1c", kill_on_drop: false }`
[INFO] [stderr]     Checking err-convert-macro v0.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking cxmr-balances v0.0.1
[INFO] [stderr]     Checking cxmr-currency v0.0.1
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking rayon v1.4.0
[INFO] [stderr]     Checking cxmr-exchanges v0.0.1
[INFO] [stderr]     Checking cxmr-feeds v0.0.1
[INFO] [stderr]  Documenting cxmr-tectonic v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test, try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `cxmr-tectonic`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cxmr_tectonic src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-e1a9b9121eac1683.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-364c148656283980.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-cb1ea1286d2c9141.rmeta --extern cxmr_balances=/opt/rustwide/target/debug/deps/libcxmr_balances-c43c91656aba4e86.rmeta --extern cxmr_currency=/opt/rustwide/target/debug/deps/libcxmr_currency-d82c81f505a6155f.rmeta --extern cxmr_exchanges=/opt/rustwide/target/debug/deps/libcxmr_exchanges-100d000b317a7eaf.rmeta --extern cxmr_feeds=/opt/rustwide/target/debug/deps/libcxmr_feeds-8bf4d96560072abb.rmeta --extern err_convert_macro=/opt/rustwide/target/debug/deps/liberr_convert_macro-f8798b9edc0f7a4b.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-56dd397d7044e9d2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-057d1e4bc2673252.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8b25aaf2e71705fc.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-2668304b401a369d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ec5e695d7e4b5284.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3a89c57880b62507.so --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "647ecfd6f24f56347b33bca292c5f493c88e679bc144a074180f82639b438f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647ecfd6f24f56347b33bca292c5f493c88e679bc144a074180f82639b438f1c", kill_on_drop: false }`
[INFO] [stdout] 647ecfd6f24f56347b33bca292c5f493c88e679bc144a074180f82639b438f1c