[INFO] cloning repository https://github.com/ryanhe4/rust_rocket_server_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanhe4/rust_rocket_server_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhe4%2Frust_rocket_server_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhe4%2Frust_rocket_server_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac96d0ec32f2d2a2701c6ce4f9b4842a21e5c5cb
[INFO] documenting ryanhe4/rust_rocket_server_example against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhe4%2Frust_rocket_server_example" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanhe4/rust_rocket_server_example on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanhe4/rust_rocket_server_example
[INFO] finished tweaking git repo https://github.com/ryanhe4/rust_rocket_server_example
[INFO] tweaked toml for git repo https://github.com/ryanhe4/rust_rocket_server_example written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanhe4/rust_rocket_server_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] baf129b2a0e6c83369fbca745709acec8ce3b6d7fafa96e51743ae157d520994
[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" "baf129b2a0e6c83369fbca745709acec8ce3b6d7fafa96e51743ae157d520994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baf129b2a0e6c83369fbca745709acec8ce3b6d7fafa96e51743ae157d520994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf129b2a0e6c83369fbca745709acec8ce3b6d7fafa96e51743ae157d520994", kill_on_drop: false }`
[INFO] [stdout] baf129b2a0e6c83369fbca745709acec8ce3b6d7fafa96e51743ae157d520994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] d5f1653c70dcdf86e813b95936923e690d22efc1537a84f8576b21656e237ccb
[INFO] running `Command { std: "docker" "start" "-a" "d5f1653c70dcdf86e813b95936923e690d22efc1537a84f8576b21656e237ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.15
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[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
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[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling devise v0.3.0
[INFO] [stderr]    Compiling pear v0.2.3
[INFO] [stderr]    Compiling rocket_sync_db_pools_codegen v0.1.0-rc.1
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking serde v1.0.126
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[INFO] [stderr]     Checking tokio-native-tls v0.3.0
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[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking diesel v1.4.7
[INFO] [stderr]     Checking hyper v0.14.10
[INFO] [stderr]     Checking rocket_http v0.5.0-rc.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.1
[INFO] [stderr]     Checking rocket_sync_db_pools v0.1.0-rc.1
[INFO] [stderr]  Documenting server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[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 `server`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name server src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a490adc54364bb0d -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-c5a2613384a69ee3.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-8adea7d5460d7b5f.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-a7b9edffd3c45857.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7d97bc7849dcf115.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-3e516ec61c2000a6.rmeta --extern rocket=/opt/rustwide/target/debug/deps/librocket-6b264e241aa2c78c.rmeta --extern rocket_sync_db_pools=/opt/rustwide/target/debug/deps/librocket_sync_db_pools-ce47b47d0d53bc45.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9b5e77c00342ed92.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-42c351bd8c4a0f5e.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-270d31f725141609.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d5f1653c70dcdf86e813b95936923e690d22efc1537a84f8576b21656e237ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f1653c70dcdf86e813b95936923e690d22efc1537a84f8576b21656e237ccb", kill_on_drop: false }`
[INFO] [stdout] d5f1653c70dcdf86e813b95936923e690d22efc1537a84f8576b21656e237ccb