[INFO] cloning repository https://github.com/wayslog/statsd
[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" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8f37576bf78215b7eb79195cd8e30978820e761
[INFO] documenting wayslog/statsd against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Fstatsd" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wayslog/statsd on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wayslog/statsd
[INFO] finished tweaking git repo https://github.com/wayslog/statsd
[INFO] tweaked toml for git repo https://github.com/wayslog/statsd written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wayslog/statsd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.41
[INFO] [stderr]   Downloaded backtrace v0.3.7
[INFO] [stderr]   Downloaded proc-macro2 v0.4.3
[INFO] [stderr]   Downloaded serde_json v1.0.17
[INFO] [stderr]   Downloaded serde_derive v1.0.59
[INFO] [stderr]   Downloaded futures v0.1.21
[INFO] [stderr]   Downloaded crc16 v0.3.4
[INFO] [stderr]   Downloaded quote v0.6.2
[INFO] [stderr]   Downloaded tokio-fs v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.59
[INFO] [stderr]   Downloaded crossbeam-deque v0.3.1
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.3
[INFO] [stderr]   Downloaded tokio-timer v0.2.3
[INFO] [stderr]   Downloaded redox_syscall v0.1.38
[INFO] [stderr]   Downloaded regex-syntax v0.6.0
[INFO] [stderr]   Downloaded byteorder v1.2.3
[INFO] [stderr]   Downloaded syn v0.14.0
[INFO] [stderr]   Downloaded quick-error v1.2.1
[INFO] [stderr]   Downloaded tokio-executor v0.1.2
[INFO] [stderr]   Downloaded bytes v0.4.7
[INFO] [stderr]   Downloaded tokio v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e907c4aacf66e08fe62fe5acddd20b09492b0ea061ecdf6d5f4d07fdb14af147
[INFO] running `Command { std: "docker" "start" "-a" "e907c4aacf66e08fe62fe5acddd20b09492b0ea061ecdf6d5f4d07fdb14af147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e907c4aacf66e08fe62fe5acddd20b09492b0ea061ecdf6d5f4d07fdb14af147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e907c4aacf66e08fe62fe5acddd20b09492b0ea061ecdf6d5f4d07fdb14af147", kill_on_drop: false }`
[INFO] [stdout] e907c4aacf66e08fe62fe5acddd20b09492b0ea061ecdf6d5f4d07fdb14af147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac55565335af84176042141e9033e400ab58e9a4717965f3ad1cf439dcbbca4
[INFO] running `Command { std: "docker" "start" "-a" "3ac55565335af84176042141e9033e400ab58e9a4717965f3ad1cf439dcbbca4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]    Compiling crc16 v0.3.4
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling quote v0.6.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.59
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking backtrace v0.3.7
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking statsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting statsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/com.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | / lazy_static! {
[INFO] [stdout] 44 | |     pub static ref CONFIG: Config = {
[INFO] [stdout] 45 | |         use std::env;
[INFO] [stdout] 46 | |         use std::fs;
[INFO] [stdout] ...  |
[INFO] [stdout] 50 | |     };
[INFO] [stdout] 51 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::prelude`
[INFO] [stdout]  --> src/sender/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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: could not compile `statsd` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[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 stats src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f6f4238220be74fe -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-3f2e053087c4fe5c.rmeta --extern crc16=/opt/rustwide/target/debug/deps/libcrc16-6f3dbd7fb4b58914.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-f7dd56732039aa87.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-2efcac8841f741b4.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-58ad0ca6d718e435.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-eca66cf27e465c6b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4f8a1a0eba9dda53.rmeta --extern net2=/opt/rustwide/target/debug/deps/libnet2-bd9b9aeb7a9b49b8.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-49595a5ee2c5b878.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d7de02807147b79e.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-4468585e2c948190.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6e52a2f0a3842c3f.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-8fc135060a12a5e3.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3ac55565335af84176042141e9033e400ab58e9a4717965f3ad1cf439dcbbca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac55565335af84176042141e9033e400ab58e9a4717965f3ad1cf439dcbbca4", kill_on_drop: false }`
[INFO] [stdout] 3ac55565335af84176042141e9033e400ab58e9a4717965f3ad1cf439dcbbca4