[INFO] cloning repository https://github.com/KyleU/solitaire
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KyleU/solitaire" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyleU%2Fsolitaire", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyleU%2Fsolitaire'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca487942ca6402cf3ea922a8432dc9b20b7d42aa
[INFO] documenting KyleU/solitaire against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyleU%2Fsolitaire" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KyleU/solitaire on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KyleU/solitaire
[INFO] finished tweaking git repo https://github.com/KyleU/solitaire
[INFO] tweaked toml for git repo https://github.com/KyleU/solitaire written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/KyleU/solitaire already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-web-codegen v0.2.0
[INFO] [stderr]   Downloaded async-trait v0.1.22
[INFO] [stderr]   Downloaded js-sys v0.3.33
[INFO] [stderr]   Downloaded app_dirs2 v2.0.4
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.6
[INFO] [stderr]   Downloaded actix-session v0.3.0
[INFO] [stderr]   Downloaded pin-project-internal v0.4.6
[INFO] [stderr]   Downloaded rust-embed-impl v5.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.6
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.56
[INFO] [stderr]   Downloaded bytestring v0.1.2
[INFO] [stderr]   Downloaded actix-utils v1.0.4
[INFO] [stderr]   Downloaded rust-embed-utils v5.0.0
[INFO] [stderr]   Downloaded shellexpand v1.0.0
[INFO] [stderr]   Downloaded slog-term v2.4.2
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.6
[INFO] [stderr]   Downloaded actix-connect v1.0.1
[INFO] [stderr]   Downloaded winres v0.1.11
[INFO] [stderr]   Downloaded actix-service v1.0.1
[INFO] [stderr]   Downloaded built v0.3.2
[INFO] [stderr]   Downloaded pin-project v0.4.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.56
[INFO] [stderr]   Downloaded web-view v0.5.4
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.56
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.56
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.56
[INFO] [stderr]   Downloaded actix-server v1.0.1
[INFO] [stderr]   Downloaded enum-as-inner v0.3.0
[INFO] [stderr]   Downloaded webview-sys v0.3.3
[INFO] [stderr]   Downloaded h2 v0.2.1
[INFO] [stderr]   Downloaded maud_htmlescape v0.17.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.56
[INFO] [stderr]   Downloaded git2 v0.10.2
[INFO] [stderr]   Downloaded web-sys v0.3.33
[INFO] [stderr]   Downloaded rust-embed v5.2.0
[INFO] [stderr]   Downloaded libgit2-sys v0.9.2
[INFO] [stderr]   Downloaded maud_macros v0.21.0
[INFO] [stderr]   Downloaded maud v0.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bff1b7f07b04713c4c5eda4c142a229a0ea300ce1f6e61acaf1f97828bf7133
[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" "0bff1b7f07b04713c4c5eda4c142a229a0ea300ce1f6e61acaf1f97828bf7133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bff1b7f07b04713c4c5eda4c142a229a0ea300ce1f6e61acaf1f97828bf7133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bff1b7f07b04713c4c5eda4c142a229a0ea300ce1f6e61acaf1f97828bf7133", kill_on_drop: false }`
[INFO] [stdout] 0bff1b7f07b04713c4c5eda4c142a229a0ea300ce1f6e61acaf1f97828bf7133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f56a3a91a6bcb0f5a09aeccf36661cad891582c51348e1c3c8da468471214420
[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" "f56a3a91a6bcb0f5a09aeccf36661cad891582c51348e1c3c8da468471214420", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking pin-project-lite v0.1.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling shellexpand v1.0.0
[INFO] [stderr]     Checking app_dirs2 v2.0.4
[INFO] [stderr]    Compiling rust-embed-utils v5.0.0
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.11
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling maud_macros v0.21.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking bytestring v0.1.2
[INFO] [stderr]    Compiling cc v1.0.47
[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/maud_macros-0.21.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/maud_macros-0.21.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/maud_macros-0.21.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/maud_macros-0.21.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_quote)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/maud_macros-0.21.0/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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 compile `maud_macros` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f56a3a91a6bcb0f5a09aeccf36661cad891582c51348e1c3c8da468471214420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f56a3a91a6bcb0f5a09aeccf36661cad891582c51348e1c3c8da468471214420", kill_on_drop: false }`
[INFO] [stdout] f56a3a91a6bcb0f5a09aeccf36661cad891582c51348e1c3c8da468471214420
