[INFO] cloning repository https://github.com/lbcdec/lbcdec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lbcdec/lbcdec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbcdec%2Flbcdec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbcdec%2Flbcdec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db7d3f95ae6dac9e6d9e1b86829896954abea6d1
[INFO] documenting lbcdec/lbcdec 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%2Flbcdec%2Flbcdec" "/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/lbcdec/lbcdec 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/lbcdec/lbcdec
[INFO] finished tweaking git repo https://github.com/lbcdec/lbcdec
[INFO] tweaked toml for git repo https://github.com/lbcdec/lbcdec written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/lbcdec/lbcdec 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] [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-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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01086a384b1c06a572b07a85b8476774d84a6ec09ad94fe42345443dbb7e5f3f
[INFO] running `Command { std: "docker" "start" "-a" "01086a384b1c06a572b07a85b8476774d84a6ec09ad94fe42345443dbb7e5f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01086a384b1c06a572b07a85b8476774d84a6ec09ad94fe42345443dbb7e5f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01086a384b1c06a572b07a85b8476774d84a6ec09ad94fe42345443dbb7e5f3f", kill_on_drop: false }`
[INFO] [stdout] 01086a384b1c06a572b07a85b8476774d84a6ec09ad94fe42345443dbb7e5f3f
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d8535fff4e3e38c75f5188a8cefd5460d98c169b449f36bab512ff7a0eba845
[INFO] running `Command { std: "docker" "start" "-a" "5d8535fff4e3e38c75f5188a8cefd5460d98c169b449f36bab512ff7a0eba845", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking remove_dir_all v0.5.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking obstack v0.1.3
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking smallvec v0.6.3
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking tempfile v3.0.3
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]  Documenting lbcdec 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:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![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 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 `lbcdec`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name lbcdec 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 clap=/opt/rustwide/target/debug/deps/libclap-1aff0f3792dfc7e0.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-6a2600ee75874aec.rmeta --extern enum_primitive=/opt/rustwide/target/debug/deps/libenum_primitive-8ce209e11d613b03.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-b05d97751b30fb6d.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-61b3d0371d1ed0dd.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-70f6d90ece3a8da2.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8c12fd5bd536fb76.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-a5a61b22e3abdc5e.rmeta --extern obstack=/opt/rustwide/target/debug/deps/libobstack-962a2088b59d82a6.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cfb11dba6f228199.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-765a72cf915ca5b0.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-9d51b431a779d9ec.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5d8535fff4e3e38c75f5188a8cefd5460d98c169b449f36bab512ff7a0eba845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8535fff4e3e38c75f5188a8cefd5460d98c169b449f36bab512ff7a0eba845", kill_on_drop: false }`
[INFO] [stdout] 5d8535fff4e3e38c75f5188a8cefd5460d98c169b449f36bab512ff7a0eba845
