[INFO] fetching crate cxmr-tectonic 0.0.1...
[INFO] documenting cxmr-tectonic-0.0.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate cxmr-tectonic 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cxmr-tectonic 0.0.1 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 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-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "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] ea4f05d3a816ca2a91cefe79b62709d5bafab378f74d3d9d033ef1b9dcf2aace
[INFO] running `Command { std: "docker" "start" "-a" "ea4f05d3a816ca2a91cefe79b62709d5bafab378f74d3d9d033ef1b9dcf2aace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea4f05d3a816ca2a91cefe79b62709d5bafab378f74d3d9d033ef1b9dcf2aace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea4f05d3a816ca2a91cefe79b62709d5bafab378f74d3d9d033ef1b9dcf2aace", kill_on_drop: false }`
[INFO] [stdout] ea4f05d3a816ca2a91cefe79b62709d5bafab378f74d3d9d033ef1b9dcf2aace
[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" "+1.46.0" "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] 09e85b9b5f3a1517677a454801545086824eb1d420c1ea05ea08c7b268ebebd5
[INFO] running `Command { std: "docker" "start" "-a" "09e85b9b5f3a1517677a454801545086824eb1d420c1ea05ea08c7b268ebebd5", kill_on_drop: false }`
[INFO] [stderr]     Checking err-convert-macro v0.0.1
[INFO] [stderr]     Checking glob v0.3.0
[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 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 stable 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-b7cb6f2855b37747.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-cdbbc07100f440a1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-8ddd5e37f7f73bd8.rmeta --extern cxmr_balances=/opt/rustwide/target/debug/deps/libcxmr_balances-2bb9b036d5dfa1bd.rmeta --extern cxmr_currency=/opt/rustwide/target/debug/deps/libcxmr_currency-aafd91ec2f4229c2.rmeta --extern cxmr_exchanges=/opt/rustwide/target/debug/deps/libcxmr_exchanges-5c6aa5cad27f9441.rmeta --extern cxmr_feeds=/opt/rustwide/target/debug/deps/libcxmr_feeds-87690f0d5040fa4a.rmeta --extern err_convert_macro=/opt/rustwide/target/debug/deps/liberr_convert_macro-97280f1c14862509.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-d9fcd1e065ee1e23.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-91c2b32d0ceb9511.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-75d540134d633bf3.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f3871106bff3dfa4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5429dd6d097468fb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3af9a6345491720f.so --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "09e85b9b5f3a1517677a454801545086824eb1d420c1ea05ea08c7b268ebebd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e85b9b5f3a1517677a454801545086824eb1d420c1ea05ea08c7b268ebebd5", kill_on_drop: false }`
[INFO] [stdout] 09e85b9b5f3a1517677a454801545086824eb1d420c1ea05ea08c7b268ebebd5