[INFO] cloning repository https://github.com/Lymia/th_dnh_archiver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lymia/th_dnh_archiver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLymia%2Fth_dnh_archiver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLymia%2Fth_dnh_archiver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3edf70755257e1c0f1d193304f2ce36bd8016d5a
[INFO] documenting Lymia/th_dnh_archiver against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLymia%2Fth_dnh_archiver" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lymia/th_dnh_archiver on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lymia/th_dnh_archiver
[INFO] finished tweaking git repo https://github.com/Lymia/th_dnh_archiver
[INFO] tweaked toml for git repo https://github.com/Lymia/th_dnh_archiver written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Lymia/th_dnh_archiver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 636b2112856bf4cfdc5a3750c911b6481ae73e82e3d391d08c87fc639030df8f
[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" "636b2112856bf4cfdc5a3750c911b6481ae73e82e3d391d08c87fc639030df8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "636b2112856bf4cfdc5a3750c911b6481ae73e82e3d391d08c87fc639030df8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636b2112856bf4cfdc5a3750c911b6481ae73e82e3d391d08c87fc639030df8f", kill_on_drop: false }`
[INFO] [stdout] 636b2112856bf4cfdc5a3750c911b6481ae73e82e3d391d08c87fc639030df8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc5f1d106ccca692f51b225121ba687a03f1b4ef01a166db37b02050278e87e7
[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" "dc5f1d106ccca692f51b225121ba687a03f1b4ef01a166db37b02050278e87e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking libflate v0.1.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.7
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]  Documenting th_dnh_archiver v3.0.1 (/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(nll)]
[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 `th_dnh_archiver`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name th_dnh_archiver 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 byteorder=/opt/rustwide/target/debug/deps/libbyteorder-482a62d68c65274c.rmeta --extern encoding=/opt/rustwide/target/debug/deps/libencoding-20a79b57a8e3991d.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-ae6dd421da330094.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e5172518ac20b96d.rmeta --extern libflate=/opt/rustwide/target/debug/deps/liblibflate-55f99185a6e7f775.rmeta --cap-lints=warn --crate-version 3.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "dc5f1d106ccca692f51b225121ba687a03f1b4ef01a166db37b02050278e87e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5f1d106ccca692f51b225121ba687a03f1b4ef01a166db37b02050278e87e7", kill_on_drop: false }`
[INFO] [stdout] dc5f1d106ccca692f51b225121ba687a03f1b4ef01a166db37b02050278e87e7
