[INFO] fetching crate repose 0.1.0...
[INFO] documenting repose-0.1.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate repose 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate repose 0.1.0 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 crates.io crate repose 0.1.0
[INFO] finished tweaking crates.io crate repose 0.1.0
[INFO] tweaked toml for crates.io crate repose 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b122652d59186b7e7ab47c39fda838e9e2f9533ca6492e9dba2ac8b237fc1c72
[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" "b122652d59186b7e7ab47c39fda838e9e2f9533ca6492e9dba2ac8b237fc1c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b122652d59186b7e7ab47c39fda838e9e2f9533ca6492e9dba2ac8b237fc1c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b122652d59186b7e7ab47c39fda838e9e2f9533ca6492e9dba2ac8b237fc1c72", kill_on_drop: false }`
[INFO] [stdout] b122652d59186b7e7ab47c39fda838e9e2f9533ca6492e9dba2ac8b237fc1c72
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5832f0f5d0893a615ffbd7dfa5013522e406ad17d95133813e5d640e2a1f6224
[INFO] running `Command { std: "docker" "start" "-a" "5832f0f5d0893a615ffbd7dfa5013522e406ad17d95133813e5d640e2a1f6224", kill_on_drop: false }`
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling libarchive3-sys v0.1.2
[INFO] [stderr]     Checking base64 v0.3.1
[INFO] [stderr]     Checking libarchive v0.1.1
[INFO] [stderr]  Documenting repose v0.1.0 (/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(slice_patterns)]
[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 `repose`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name repose 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 base64=/opt/rustwide/target/debug/deps/libbase64-0b93892bd65e1a00.rmeta --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-8f469655391a29f6.rmeta --extern libarchive=/opt/rustwide/target/debug/deps/liblibarchive-94a1bf0cf49f46dc.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-0d4e59a692e831a5.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-8d0a543b3b56da7f.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e4aa0912053fc98e.rmeta --extern uname=/opt/rustwide/target/debug/deps/libuname-121fa70279d2ecd3.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5832f0f5d0893a615ffbd7dfa5013522e406ad17d95133813e5d640e2a1f6224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5832f0f5d0893a615ffbd7dfa5013522e406ad17d95133813e5d640e2a1f6224", kill_on_drop: false }`
[INFO] [stdout] 5832f0f5d0893a615ffbd7dfa5013522e406ad17d95133813e5d640e2a1f6224
