[INFO] cloning repository https://github.com/d6e/filecabinet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d6e/filecabinet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd6e%2Ffilecabinet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd6e%2Ffilecabinet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84f6225c7ce3c6aaa361c525ed0fe1e85d79c65d
[INFO] documenting d6e/filecabinet against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd6e%2Ffilecabinet" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d6e/filecabinet on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/d6e/filecabinet
[INFO] finished tweaking git repo https://github.com/d6e/filecabinet
[INFO] tweaked toml for git repo https://github.com/d6e/filecabinet written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/d6e/filecabinet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded globwalk v0.8.0
[INFO] [stderr]   Downloaded mobc v0.5.12
[INFO] [stderr]   Downloaded askama_shared v0.10.4
[INFO] [stderr]   Downloaded askama_escape v0.10.1
[INFO] [stderr]   Downloaded askama v0.10.3
[INFO] [stderr]   Downloaded warp v0.2.4
[INFO] [stderr]   Downloaded ignore v0.4.16
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded unic-char-property v0.9.0
[INFO] [stderr]   Downloaded poly1305 v0.5.2
[INFO] [stderr]   Downloaded askama_derive v0.10.3
[INFO] [stderr]   Downloaded chacha20 v0.3.4
[INFO] [stderr]   Downloaded chacha20poly1305 v0.4.1
[INFO] [stderr]   Downloaded mobc-postgres v0.5.0
[INFO] [stderr]   Downloaded globset v0.4.5
[INFO] [stderr]   Downloaded unic-char-range v0.9.0
[INFO] [stderr]   Downloaded unic-ucd-version v0.9.0
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded tera v1.5.0
[INFO] [stderr]   Downloaded unic-common v0.9.0
[INFO] [stderr]   Downloaded cocoon v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 031c4bdc4097445c0911769be8440ce00a67eefcd6a63641e9e1f06f59f40aa1
[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" "031c4bdc4097445c0911769be8440ce00a67eefcd6a63641e9e1f06f59f40aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "031c4bdc4097445c0911769be8440ce00a67eefcd6a63641e9e1f06f59f40aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031c4bdc4097445c0911769be8440ce00a67eefcd6a63641e9e1f06f59f40aa1", kill_on_drop: false }`
[INFO] [stdout] 031c4bdc4097445c0911769be8440ce00a67eefcd6a63641e9e1f06f59f40aa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a99c877c840c977007e07a7710820a4aa78bc7ce21c4d1c6710ba6c8cc5042e8
[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" "a99c877c840c977007e07a7710820a4aa78bc7ce21c4d1c6710ba6c8cc5042e8", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking syn v1.0.39
[INFO] [stderr]     Checking poly1305 v0.5.2
[INFO] [stderr]     Checking chacha20 v0.3.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling async-trait v0.1.38
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking postgres-protocol v0.5.2
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking chacha20poly1305 v0.4.1
[INFO] [stderr]     Checking cocoon v0.1.11
[INFO] [stderr]     Checking postgres-types v0.1.2
[INFO] [stderr]     Checking globwalk v0.8.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking chrono-tz v0.5.2
[INFO] [stderr]     Checking askama_shared v0.10.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking mobc v0.5.12
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking tokio-postgres v0.5.5
[INFO] [stderr]     Checking mobc-postgres v0.5.0
[INFO] [stderr]     Checking tera v1.5.0
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]    Compiling askama_derive v0.10.3
[INFO] [stderr]     Checking warp v0.2.4
[INFO] [stderr]     Checking askama v0.10.3
[INFO] [stderr]  Documenting filecabinet 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(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 `filecabinet`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name filecabinet 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 askama=/opt/rustwide/target/debug/deps/libaskama-6ee86f9db3c3a959.rmeta --extern askama_derive=/opt/rustwide/target/debug/deps/libaskama_derive-c4580f38f8fd1a99.so --extern chrono=/opt/rustwide/target/debug/deps/libchrono-7e1008ec8395d7c7.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-d8de5d56e70a343c.rmeta --extern cocoon=/opt/rustwide/target/debug/deps/libcocoon-477ff7c2c23f15f4.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-83527bc6c1a64f8c.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-057d1e4bc2673252.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-389af87ce6697360.rmeta --extern mobc=/opt/rustwide/target/debug/deps/libmobc-3b05abe15b866b9e.rmeta --extern mobc_postgres=/opt/rustwide/target/debug/deps/libmobc_postgres-2fd55db69dc7839e.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-11946bb198eefaee.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c665cba7d3d0b98a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-434c143acd12816f.rmeta --extern tera=/opt/rustwide/target/debug/deps/libtera-66abe1c0d06cb739.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2b8bd3e1ac9b9f8b.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-ee1a0aadee4dcc11.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "a99c877c840c977007e07a7710820a4aa78bc7ce21c4d1c6710ba6c8cc5042e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99c877c840c977007e07a7710820a4aa78bc7ce21c4d1c6710ba6c8cc5042e8", kill_on_drop: false }`
[INFO] [stdout] a99c877c840c977007e07a7710820a4aa78bc7ce21c4d1c6710ba6c8cc5042e8