[INFO] cloning repository https://github.com/rustbridge/rustbridge-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustbridge/rustbridge-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustbridge%2Frustbridge-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustbridge%2Frustbridge-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 068dba4d73550f31899972761415670bc0c1f34a
[INFO] documenting rustbridge/rustbridge-cli against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustbridge%2Frustbridge-cli" "/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/rustbridge/rustbridge-cli on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustbridge/rustbridge-cli
[INFO] finished tweaking git repo https://github.com/rustbridge/rustbridge-cli
[INFO] tweaked toml for git repo https://github.com/rustbridge/rustbridge-cli written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/rustbridge/rustbridge-cli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49e87a94f0305a103b0ab9b77349fe4ca1994ab3dcbd25b794bbb1ae3ef3f263
[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" "49e87a94f0305a103b0ab9b77349fe4ca1994ab3dcbd25b794bbb1ae3ef3f263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e87a94f0305a103b0ab9b77349fe4ca1994ab3dcbd25b794bbb1ae3ef3f263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e87a94f0305a103b0ab9b77349fe4ca1994ab3dcbd25b794bbb1ae3ef3f263", kill_on_drop: false }`
[INFO] [stdout] 49e87a94f0305a103b0ab9b77349fe4ca1994ab3dcbd25b794bbb1ae3ef3f263
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4b7e7241842bf9c4d169f647b8d512f4e2cb4514e288cfc085bfda9466631d3
[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" "a4b7e7241842bf9c4d169f647b8d512f4e2cb4514e288cfc085bfda9466631d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling cc v1.0.9
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking serde v1.0.34
[INFO] [stderr]     Checking data-encoding v2.1.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.5
[INFO] [stderr]    Compiling serde_derive_internals v0.22.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.34
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling diesel_derives v1.1.0
[INFO] [stderr]     Checking structopt v0.2.5
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]     Checking env_logger v0.5.6
[INFO] [stderr]     Checking diesel v1.1.1
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking quicli v0.2.0
[INFO] [stderr]  Documenting rustbridge-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin, decl_macro, custom_derive)]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[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(plugin, decl_macro, custom_derive)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rustbridge-cli`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rustbridge_cli 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 data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-8c1212e8c8ff82ca.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-0e25fae26a5f8667.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-9ee862c251ed8ea9.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-feea18130d41e7d2.so --extern quicli=/opt/rustwide/target/debug/deps/libquicli-66995821d9526772.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7bd8d71df1194803.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "a4b7e7241842bf9c4d169f647b8d512f4e2cb4514e288cfc085bfda9466631d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b7e7241842bf9c4d169f647b8d512f4e2cb4514e288cfc085bfda9466631d3", kill_on_drop: false }`
[INFO] [stdout] a4b7e7241842bf9c4d169f647b8d512f4e2cb4514e288cfc085bfda9466631d3