[INFO] cloning repository https://github.com/defuse/rust-website-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/defuse/rust-website-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefuse%2Frust-website-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefuse%2Frust-website-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d07b062b709f22fd6006427310ff76f45204929c
[INFO] documenting defuse/rust-website-example 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%2Fdefuse%2Frust-website-example" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/defuse/rust-website-example 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/defuse/rust-website-example
[INFO] finished tweaking git repo https://github.com/defuse/rust-website-example
[INFO] tweaked toml for git repo https://github.com/defuse/rust-website-example written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/defuse/rust-website-example 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 devise_core v0.2.0
[INFO] [stderr]   Downloaded pear_codegen v0.1.2
[INFO] [stderr]   Downloaded notify v4.0.15
[INFO] [stderr]   Downloaded fsevent v0.4.0
[INFO] [stderr]   Downloaded diesel_derives v1.4.1
[INFO] [stderr]   Downloaded quote v1.0.3
[INFO] [stderr]   Downloaded inotify-sys v0.1.3
[INFO] [stderr]   Downloaded inotify v0.7.0
[INFO] [stderr]   Downloaded r2d2 v0.8.8
[INFO] [stderr]   Downloaded rocket_codegen v0.4.3
[INFO] [stderr]   Downloaded cookie v0.11.2
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.3
[INFO] [stderr]   Downloaded rustls v0.14.0
[INFO] [stderr]   Downloaded diesel v1.4.3
[INFO] [stderr]   Downloaded rocket_contrib_codegen v0.4.3
[INFO] [stderr]   Downloaded fsevent-sys v2.0.1
[INFO] [stderr]   Downloaded hyper-sync-rustls v0.3.0-rc.4
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded parking_lot_core v0.7.0
[INFO] [stderr]   Downloaded rocket_contrib v0.4.3
[INFO] [stderr]   Downloaded libsqlite3-sys v0.16.0
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded devise_codegen v0.2.0
[INFO] [stderr]   Downloaded devise v0.2.0
[INFO] [stderr]   Downloaded rocket v0.4.3
[INFO] [stderr]   Downloaded rocket_http v0.4.3
[INFO] [stderr]   Downloaded parking_lot v0.10.0
[INFO] [stderr]   Downloaded pear v0.1.2
[INFO] [stderr]   Downloaded yansi v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c0ef6292f40eb5e7802ea42b82c63ecfb0ab3fb75994f1546bc166e28effeb6a
[INFO] running `Command { std: "docker" "start" "-a" "c0ef6292f40eb5e7802ea42b82c63ecfb0ab3fb75994f1546bc166e28effeb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0ef6292f40eb5e7802ea42b82c63ecfb0ab3fb75994f1546bc166e28effeb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ef6292f40eb5e7802ea42b82c63ecfb0ab3fb75994f1546bc166e28effeb6a", kill_on_drop: false }`
[INFO] [stdout] c0ef6292f40eb5e7802ea42b82c63ecfb0ab3fb75994f1546bc166e28effeb6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1af5ed902d535e8d1af2249ee017625c71ff6e2ec3f02cc3c20d44fde941eb5f
[INFO] running `Command { std: "docker" "start" "-a" "1af5ed902d535e8d1af2249ee017625c71ff6e2ec3f02cc3c20d44fde941eb5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling rocket_codegen v0.4.3
[INFO] [stderr]    Compiling rocket_contrib_codegen v0.4.3
[INFO] [stderr]    Compiling rocket v0.4.3
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[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/devise_core-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic, proc_macro_span)]
[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/devise_core-0.2.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[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/devise_core-0.2.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stdout] error: aborting due to 3 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 `devise_core` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1af5ed902d535e8d1af2249ee017625c71ff6e2ec3f02cc3c20d44fde941eb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af5ed902d535e8d1af2249ee017625c71ff6e2ec3f02cc3c20d44fde941eb5f", kill_on_drop: false }`
[INFO] [stdout] 1af5ed902d535e8d1af2249ee017625c71ff6e2ec3f02cc3c20d44fde941eb5f
