[INFO] cloning repository https://github.com/wayslog/statsd-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wayslog/statsd-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5003d9c78d0f9c9a971f0c0f0036f8fb99fd1144
[INFO] documenting wayslog/statsd-rs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wayslog/statsd-rs on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wayslog/statsd-rs
[INFO] finished tweaking git repo https://github.com/wayslog/statsd-rs
[INFO] tweaked toml for git repo https://github.com/wayslog/statsd-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/wayslog/statsd-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17ff1e878862ff6dcc019917207fe59981dea5392620983c2ce43feac9a975a5
[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" "17ff1e878862ff6dcc019917207fe59981dea5392620983c2ce43feac9a975a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ff1e878862ff6dcc019917207fe59981dea5392620983c2ce43feac9a975a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ff1e878862ff6dcc019917207fe59981dea5392620983c2ce43feac9a975a5", kill_on_drop: false }`
[INFO] [stdout] 17ff1e878862ff6dcc019917207fe59981dea5392620983c2ce43feac9a975a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.46.0" "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] 010e078eb504a20464bfeefe0b28b67fb7dfa3594fe79b8596881698eea11529
[INFO] running `Command { std: "docker" "start" "-a" "010e078eb504a20464bfeefe0b28b67fb7dfa3594fe79b8596881698eea11529", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking num_cpus v1.6.0
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking bytes v0.4.4
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking tokio-io v0.1.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking tokio-core v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking statsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting statsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `statsd`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name libstatsd 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 env_logger=/opt/rustwide/target/debug/deps/libenv_logger-61e4ba6c68c7809d.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-9202aba7294e44f6.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-50c025a128865264.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e0b416b2062b490d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-30a1e68538203258.rmeta --extern net2=/opt/rustwide/target/debug/deps/libnet2-a92edef83784850c.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-7cd14c86138ac7bf.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a876e5654f5640a1.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-ba0f37f269e1339c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e7970e915d46db84.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-00c7d0cd27a168f4.rmeta --cap-lints=warn` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 | / lazy_static! {
[INFO] [stdout] 133 | |     pub static ref CONFIG: Config  = {
[INFO] [stdout] 134 | |         let pth = get_cfg_path();
[INFO] [stdout] 135 | |         let config = Config::load(&pth);
[INFO] [stdout] ...   |
[INFO] [stdout] 138 | |     };
[INFO] [stdout] 139 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 | / lazy_static! {
[INFO] [stdout] 133 | |     pub static ref CONFIG: Config  = {
[INFO] [stdout] 134 | |         let pth = get_cfg_path();
[INFO] [stdout] 135 | |         let config = Config::load(&pth);
[INFO] [stdout] ...   |
[INFO] [stdout] 138 | |     };
[INFO] [stdout] 139 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "010e078eb504a20464bfeefe0b28b67fb7dfa3594fe79b8596881698eea11529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010e078eb504a20464bfeefe0b28b67fb7dfa3594fe79b8596881698eea11529", kill_on_drop: false }`
[INFO] [stdout] 010e078eb504a20464bfeefe0b28b67fb7dfa3594fe79b8596881698eea11529