[INFO] cloning repository https://github.com/run-mojo/redmod
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/run-mojo/redmod" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frun-mojo%2Fredmod", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frun-mojo%2Fredmod'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a6df0a81c0cd13c6dd00f958d05c30e46283193
[INFO] documenting run-mojo/redmod 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%2Frun-mojo%2Fredmod" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/run-mojo/redmod 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/run-mojo/redmod
[INFO] finished tweaking git repo https://github.com/run-mojo/redmod
[INFO] tweaked toml for git repo https://github.com/run-mojo/redmod written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/run-mojo/redmod 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 stopwatch v0.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ed94153266668ea8b023e8dd2e14a0f9e23d7558d591398d44723752d03a73e8
[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" "ed94153266668ea8b023e8dd2e14a0f9e23d7558d591398d44723752d03a73e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed94153266668ea8b023e8dd2e14a0f9e23d7558d591398d44723752d03a73e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed94153266668ea8b023e8dd2e14a0f9e23d7558d591398d44723752d03a73e8", kill_on_drop: false }`
[INFO] [stdout] ed94153266668ea8b023e8dd2e14a0f9e23d7558d591398d44723752d03a73e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] dfb66e644db43042fe341808b9cfef4c1b0d950a2104555024a47c42911c7f9b
[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" "dfb66e644db43042fe341808b9cfef4c1b0d950a2104555024a47c42911c7f9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling red_mod v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr] warning: c/stream.c: In function 'streamAppendItemForPersist':
[INFO] [stderr] warning: c/stream.c:178:5: warning: implicit declaration of function 'streamAppendItemSDSMap'; did you mean 'streamAppendItem'? [-Wimplicit-function-declaration]
[INFO] [stderr] warning:   178 |     streamAppendItemSDSMap(s, argv, numfields, added_id, use_id);
[INFO] [stderr] warning:       |     ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning:       |     streamAppendItem
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]  Documenting red_mod v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(test)]
[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] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c/stream.c: In function 'streamAppendItemForPersist':
[INFO] [stderr] warning: c/stream.c:178:5: warning: implicit declaration of function 'streamAppendItemSDSMap'; did you mean 'streamAppendItem'? [-Wimplicit-function-declaration]
[INFO] [stderr] warning:   178 |     streamAppendItemSDSMap(s, argv, numfields, added_id, use_id);
[INFO] [stderr] warning:       |     ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning:       |     streamAppendItem
[INFO] [stderr] 
[INFO] [stderr] error: Could not document `red_mod`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name red_mod 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 arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-0632da3322c37d38.rmeta --extern bencher=/opt/rustwide/target/debug/deps/libbencher-e5859aa470d632a1.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-188b00bd328951b2.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-ab7e009bd0afed4c.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-0e857aacb5896b78.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-ea856596c1114607.rmeta --extern stopwatch=/opt/rustwide/target/debug/deps/libstopwatch-a1717f7b61889a54.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-971c9bbdac345713.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "dfb66e644db43042fe341808b9cfef4c1b0d950a2104555024a47c42911c7f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb66e644db43042fe341808b9cfef4c1b0d950a2104555024a47c42911c7f9b", kill_on_drop: false }`
[INFO] [stdout] dfb66e644db43042fe341808b9cfef4c1b0d950a2104555024a47c42911c7f9b