[INFO] cloning repository https://github.com/nrc/rls-analysis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrc/rls-analysis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Frls-analysis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Frls-analysis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd9939247dae2dbe4c801af4c0c3f82035f88d49
[INFO] documenting nrc/rls-analysis against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Frls-analysis" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrc/rls-analysis on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nrc/rls-analysis
[INFO] finished tweaking git repo https://github.com/nrc/rls-analysis
[INFO] tweaked toml for git repo https://github.com/nrc/rls-analysis written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nrc/rls-analysis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9a4763b768a851a65259f41cfea326c315f8ca6c7e7fc9af7ecdc3834dd4553
[INFO] running `Command { std: "docker" "start" "-a" "b9a4763b768a851a65259f41cfea326c315f8ca6c7e7fc9af7ecdc3834dd4553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9a4763b768a851a65259f41cfea326c315f8ca6c7e7fc9af7ecdc3834dd4553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a4763b768a851a65259f41cfea326c315f8ca6c7e7fc9af7ecdc3834dd4553", kill_on_drop: false }`
[INFO] [stdout] b9a4763b768a851a65259f41cfea326c315f8ca6c7e7fc9af7ecdc3834dd4553
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b97669e9c7ebd7db02b6240b003a0ff70409151063f60449fd5e3f852d22908
[INFO] running `Command { std: "docker" "start" "-a" "0b97669e9c7ebd7db02b6240b003a0ff70409151063f60449fd5e3f852d22908", kill_on_drop: false }`
[INFO] [stderr]     Checking rls-span v0.4.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking fst v0.3.3
[INFO] [stderr]     Checking rls-data v0.18.2
[INFO] [stderr]    Compiling derive-new v0.5.6
[INFO] [stderr]  Documenting rls-analysis v0.16.12 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(crate_visibility_modifier)]
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rls-analysis`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name rls_analysis src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern derive_new=/opt/rustwide/target/debug/deps/libderive_new-deb4dc05108254ec.so --extern fst=/opt/rustwide/target/debug/deps/libfst-6561caa2a58f9651.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-04b94fbea2b543c3.rmeta --extern json=/opt/rustwide/target/debug/deps/libjson-68dbfe83f30391db.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b52d93b6a5875b2a.rmeta --extern rls_data=/opt/rustwide/target/debug/deps/librls_data-0da7c425e12fc584.rmeta --extern rls_span=/opt/rustwide/target/debug/deps/librls_span-5b1e28e8aeecaec0.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-67e30c758e0c56b4.rmeta --cap-lints=warn --crate-version 0.16.12` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0b97669e9c7ebd7db02b6240b003a0ff70409151063f60449fd5e3f852d22908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b97669e9c7ebd7db02b6240b003a0ff70409151063f60449fd5e3f852d22908", kill_on_drop: false }`
[INFO] [stdout] 0b97669e9c7ebd7db02b6240b003a0ff70409151063f60449fd5e3f852d22908
