[INFO] cloning repository https://github.com/freifunk-luebeck/ffdyndns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freifunk-luebeck/ffdyndns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreifunk-luebeck%2Fffdyndns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreifunk-luebeck%2Fffdyndns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4cc2ec8b7c7a70c6d8cc4620c4d16cac946cfd2
[INFO] documenting freifunk-luebeck/ffdyndns 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%2Ffreifunk-luebeck%2Fffdyndns" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freifunk-luebeck/ffdyndns 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/freifunk-luebeck/ffdyndns
[INFO] finished tweaking git repo https://github.com/freifunk-luebeck/ffdyndns
[INFO] tweaked toml for git repo https://github.com/freifunk-luebeck/ffdyndns written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/freifunk-luebeck/ffdyndns 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded normpath v0.3.1
[INFO] [stderr]   Downloaded domain v0.6.1
[INFO] [stderr]   Downloaded rocket_dyn_templates v0.1.0-rc.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4d048a5001a127b59894a7682087ef5561c9e87e3699c75d27ce7a45ed63bd7
[INFO] running `Command { std: "docker" "start" "-a" "e4d048a5001a127b59894a7682087ef5561c9e87e3699c75d27ce7a45ed63bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4d048a5001a127b59894a7682087ef5561c9e87e3699c75d27ce7a45ed63bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d048a5001a127b59894a7682087ef5561c9e87e3699c75d27ce7a45ed63bd7", kill_on_drop: false }`
[INFO] [stdout] e4d048a5001a127b59894a7682087ef5561c9e87e3699c75d27ce7a45ed63bd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 30bdd776e546060d7baa6098b96d90022f4443e32537caf8f5a211e56b5fe9c3
[INFO] running `Command { std: "docker" "start" "-a" "30bdd776e546060d7baa6098b96d90022f4443e32537caf8f5a211e56b5fe9c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
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[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling inlinable_string v0.1.14
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling tower-service v0.3.1
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[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking thread_local v1.1.3
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[INFO] [stderr]    Compiling http v0.2.5
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[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking encoding_rs v0.8.30
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
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[INFO] [stderr]     Checking rand v0.4.6
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[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
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[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling quote v1.0.14
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[INFO] [stderr]     Checking rand v0.3.23
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[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking rand v0.8.4
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[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking domain v0.6.1
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling devise_core v0.3.1
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling devise_codegen v0.3.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]    Compiling devise v0.3.1
[INFO] [stderr]    Compiling pear v0.2.3
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking h2 v0.3.9
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling chrono-tz-build v0.0.2
[INFO] [stderr]    Compiling chrono-tz v0.6.1
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking rocket_http v0.5.0-rc.1
[INFO] [stderr]     Checking tera v1.15.0
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.1
[INFO] [stderr]     Checking rocket_dyn_templates v0.1.0-rc.1
[INFO] [stderr]  Documenting ffdyndns v0.0.0 (/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, exit_status_error)]
[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 `ffdyndns`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ffdyndns src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5e221222116462e6 -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-dd532ea0c578a47e.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-b889149598d507d6.rmeta --extern domain=/opt/rustwide/target/debug/deps/libdomain-bd3166317fb8284e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-51d6542e92abdd22.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-8d35a2c94ba1d206.rmeta --extern rocket=/opt/rustwide/target/debug/deps/librocket-3afa8668423ba274.rmeta --extern rocket_dyn_templates=/opt/rustwide/target/debug/deps/librocket_dyn_templates-eeb3ea4ae02cb890.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-5178c46f42cd179c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bd7847095c58c5da.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-3696a02bd41ea051.rmeta --extern sled=/opt/rustwide/target/debug/deps/libsled-ad88053283ee2162.rmeta --extern tera=/opt/rustwide/target/debug/deps/libtera-498a2cc8161f1b50.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-3431f692191121cb.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-dc2328e515321546.rmeta --cap-lints=warn --crate-version 0.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "30bdd776e546060d7baa6098b96d90022f4443e32537caf8f5a211e56b5fe9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bdd776e546060d7baa6098b96d90022f4443e32537caf8f5a211e56b5fe9c3", kill_on_drop: false }`
[INFO] [stdout] 30bdd776e546060d7baa6098b96d90022f4443e32537caf8f5a211e56b5fe9c3