[INFO] cloning repository https://github.com/jendrikw/yew-order-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jendrikw/yew-order-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjendrikw%2Fyew-order-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjendrikw%2Fyew-order-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aafeafead77c56c7bd3ab3a22fd9f89c5ecd6edb
[INFO] documenting jendrikw/yew-order-bug against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjendrikw%2Fyew-order-bug" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jendrikw/yew-order-bug 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-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jendrikw/yew-order-bug
[INFO] finished tweaking git repo https://github.com/jendrikw/yew-order-bug
[INFO] tweaked toml for git repo https://github.com/jendrikw/yew-order-bug written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jendrikw/yew-order-bug 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]  Downloading crates ...
[INFO] [stderr]   Downloaded base-x v0.2.2
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.1.0
[INFO] [stderr]   Downloaded discard v1.0.3
[INFO] [stderr]   Downloaded stdweb v0.4.7
[INFO] [stderr]   Downloaded stdweb-derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 72d932d6b53f6401aa4d9b87e02b63099c108eb3c5962a67f5a54cab8944e323
[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" "72d932d6b53f6401aa4d9b87e02b63099c108eb3c5962a67f5a54cab8944e323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72d932d6b53f6401aa4d9b87e02b63099c108eb3c5962a67f5a54cab8944e323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d932d6b53f6401aa4d9b87e02b63099c108eb3c5962a67f5a54cab8944e323", kill_on_drop: false }`
[INFO] [stdout] 72d932d6b53f6401aa4d9b87e02b63099c108eb3c5962a67f5a54cab8944e323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 12377b49dcaa3d79203086a57ef9147aff05793c5ff3c964cb61e98426a7b0cf
[INFO] running `Command { std: "docker" "start" "-a" "12377b49dcaa3d79203086a57ef9147aff05793c5ff3c964cb61e98426a7b0cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.69
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]    Compiling stdweb v0.4.7
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking discard v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking bytes v0.4.8
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking http v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.69
[INFO] [stderr]     Checking serde_json v1.0.22
[INFO] [stderr]    Compiling stdweb-derive v0.4.0
[INFO] [stderr]     Checking yew v0.4.0
[INFO] [stderr]  Documenting yew-order-bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[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 `yew-order-bug`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name yew_order_bug src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern stdweb=/opt/rustwide/target/debug/deps/libstdweb-c571790b182e3ce7.rmeta --extern yew=/opt/rustwide/target/debug/deps/libyew-18936a00871fc4ff.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "12377b49dcaa3d79203086a57ef9147aff05793c5ff3c964cb61e98426a7b0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12377b49dcaa3d79203086a57ef9147aff05793c5ff3c964cb61e98426a7b0cf", kill_on_drop: false }`
[INFO] [stdout] 12377b49dcaa3d79203086a57ef9147aff05793c5ff3c964cb61e98426a7b0cf