[INFO] cloning repository https://github.com/PeterCxy/yad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PeterCxy/yad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab88b0b8c36881d90811723437d4e22ebb28417a
[INFO] documenting PeterCxy/yad against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PeterCxy/yad on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PeterCxy/yad
[INFO] finished tweaking git repo https://github.com/PeterCxy/yad
[INFO] tweaked toml for git repo https://github.com/PeterCxy/yad written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/PeterCxy/yad already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazycell v1.0.0
[INFO] [stderr]   Downloaded hyper v0.12.9
[INFO] [stderr]   Downloaded tokio-rustls v0.7.2
[INFO] [stderr]   Downloaded hyper-rustls v0.14.0
[INFO] [stderr]   Downloaded terminal_size v0.1.8
[INFO] [stderr]   Downloaded parking_lot_core v0.3.0
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded ring v0.13.2
[INFO] [stderr]   Downloaded http v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4dad7e486de98c02c23237ab280dfe06367dfa8e1aad1f1f32841de7a501c5b
[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" "a4dad7e486de98c02c23237ab280dfe06367dfa8e1aad1f1f32841de7a501c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4dad7e486de98c02c23237ab280dfe06367dfa8e1aad1f1f32841de7a501c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4dad7e486de98c02c23237ab280dfe06367dfa8e1aad1f1f32841de7a501c5b", kill_on_drop: false }`
[INFO] [stdout] a4dad7e486de98c02c23237ab280dfe06367dfa8e1aad1f1f32841de7a501c5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899fccfcb0032e8fffaaa453fd4c52bc0750cd4f34862eec37487273c0ce4871
[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" "899fccfcb0032e8fffaaa453fd4c52bc0750cd4f34862eec37487273c0ce4871", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]     Checking terminal_size v0.1.8
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking http v0.1.11
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking hyper v0.12.9
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking sct v0.4.0
[INFO] [stderr]     Checking ct-logs v0.4.0
[INFO] [stderr]     Checking rustls v0.13.1
[INFO] [stderr]     Checking webpki-roots v0.15.0
[INFO] [stderr]     Checking tokio-rustls v0.7.2
[INFO] [stderr]     Checking hyper-rustls v0.14.0
[INFO] [stderr]  Documenting yad 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(integer_atomics)]
[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 `yad`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name yad 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 base64=/opt/rustwide/target/debug/deps/libbase64-a412ca8d867931c7.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-d009b973245ba521.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-9152356f00f2e7f5.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-a6c77fc21d67f3fe.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-ae00a44da49f00d1.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-c07138e8a523099a.rmeta --extern hyper_rustls=/opt/rustwide/target/debug/deps/libhyper_rustls-668bce61b7f511a6.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-22e774c759521aa5.rmeta --extern terminal_size=/opt/rustwide/target/debug/deps/libterminal_size-755e3d908439eaa5.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-e29f9eae54c8b084.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "899fccfcb0032e8fffaaa453fd4c52bc0750cd4f34862eec37487273c0ce4871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899fccfcb0032e8fffaaa453fd4c52bc0750cd4f34862eec37487273c0ce4871", kill_on_drop: false }`
[INFO] [stdout] 899fccfcb0032e8fffaaa453fd4c52bc0750cd4f34862eec37487273c0ce4871
