[INFO] cloning repository https://github.com/caleb/syslog_forwarder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/caleb/syslog_forwarder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaleb%2Fsyslog_forwarder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaleb%2Fsyslog_forwarder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09c5465d48272b09fdb9eb57c51a912d5b5bb54e
[INFO] documenting caleb/syslog_forwarder against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaleb%2Fsyslog_forwarder" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caleb/syslog_forwarder on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/caleb/syslog_forwarder
[INFO] finished tweaking git repo https://github.com/caleb/syslog_forwarder
[INFO] tweaked toml for git repo https://github.com/caleb/syslog_forwarder written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/caleb/syslog_forwarder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/miow`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/mio.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-08-29" "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] 1f4dd191e1bd7782b89b668298dac807400c04c2c726c88d7713a68194331c33
[INFO] running `Command { std: "docker" "start" "-a" "1f4dd191e1bd7782b89b668298dac807400c04c2c726c88d7713a68194331c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f4dd191e1bd7782b89b668298dac807400c04c2c726c88d7713a68194331c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4dd191e1bd7782b89b668298dac807400c04c2c726c88d7713a68194331c33", kill_on_drop: false }`
[INFO] [stdout] 1f4dd191e1bd7782b89b668298dac807400c04c2c726c88d7713a68194331c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-08-29" "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] 566b0d9b803582f14a53cc6a9f8ff45469591b972483e8b6e2e021ccd8038301
[INFO] running `Command { std: "docker" "start" "-a" "566b0d9b803582f14a53cc6a9f8ff45469591b972483e8b6e2e021ccd8038301", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking mio v0.7.0 (https://github.com/carllerche/mio.git#eef8d3b9)
[INFO] [stderr]  Documenting syslog_forwarder v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `mio::unix`
[INFO] [stdout]  --> src/connection.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mio::unix::UnixStream;
[INFO] [stdout]   |          ^^^^ could not find `unix` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::util`
[INFO] [stdout]  --> src/incoming.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | use mio::util::*;
[INFO] [stdout]   |          ^^^^ could not find `util` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::unix`
[INFO] [stdout]  --> src/incoming.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mio::unix::UnixListener;
[INFO] [stdout]   |          ^^^^ could not find `unix` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bytes::ByteBuf`
[INFO] [stdout]  --> src/incoming.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bytes::ByteBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ no `ByteBuf` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::udp`
[INFO] [stdout]  --> src/outgoing.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | use mio::udp::UdpSocket;
[INFO] [stdout]   |          ^^^ could not find `udp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::udp`
[INFO] [stdout]   --> src/main.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | use mio::udp::UdpSocket;
[INFO] [stdout]    |          ^^^ could not find `udp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::unix`
[INFO] [stdout]   --> src/main.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | use mio::unix::UnixSocket;
[INFO] [stdout]    |          ^^^^ could not find `unix` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::unix`
[INFO] [stdout]   --> src/main.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | use mio::unix::UnixListener;
[INFO] [stdout]    |          ^^^^ could not find `unix` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Slab` in this scope
[INFO] [stdout]   --> src/incoming.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |   connections: Slab<Connection>,
[INFO] [stdout]    |                ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]   --> src/incoming.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |   pub fn accept(&mut self, event_loop: &mut EventLoop<SyslogForwarder>, token: Token) -> Result<()> {
[INFO] [stdout]    |                                             ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]   --> src/incoming.rs:49:68
[INFO] [stdout]    |
[INFO] [stdout] 49 |   pub fn readable(&mut self, outgoing: &Outgoing, event_loop: &mut EventLoop<SyslogForwarder>, token: Token) -> Result<()> {
[INFO] [stdout]    |                                                                    ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]   --> src/outgoing.rs:24:73
[INFO] [stdout]    |
[INFO] [stdout] 24 |   pub fn writable(&mut self, incoming: &mut Incoming, _event_loop: &mut EventLoop<SyslogForwarder>) -> Result<()> {
[INFO] [stdout]    |                                                                         ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]   --> src/outgoing.rs:34:45
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn reregister(&self, event_loop: &mut EventLoop<SyslogForwarder>) {
[INFO] [stdout]    |                                             ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Handler` in this scope
[INFO] [stdout]    --> src/main.rs:116:6
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl Handler for SyslogForwarder {
[INFO] [stdout]     |      ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]    --> src/main.rs:120:40
[INFO] [stdout]     |
[INFO] [stdout] 120 |   fn ready(&mut self, event_loop: &mut EventLoop<SyslogForwarder>, token: Token, events: mio::EventSet) {
[INFO] [stdout]     |                                        ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventSet` in crate `mio`
[INFO] [stdout]    --> src/main.rs:120:95
[INFO] [stdout]     |
[INFO] [stdout] 120 |   fn ready(&mut self, event_loop: &mut EventLoop<SyslogForwarder>, token: Token, events: mio::EventSet) {
[INFO] [stdout]     |                                                                                               ^^^^^^^^ not found in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]    --> src/main.rs:135:42
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn notify(&mut self, _event_loop: &mut EventLoop<Self>, _msg: ()) {
[INFO] [stdout]     |                                          ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]    --> src/main.rs:139:43
[INFO] [stdout]     |
[INFO] [stdout] 139 |   fn timeout(&mut self, _event_loop: &mut EventLoop<Self>, _timeout: ()) {
[INFO] [stdout]     |                                           ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stdout]    --> src/main.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |   fn interrupted(&mut self, _event_loop: &mut EventLoop<Self>) {
[INFO] [stdout]     |                                               ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(collections)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 21 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `syslog_forwarder`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name syslog_forwarder 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 bytes=/opt/rustwide/target/debug/deps/libbytes-c5714e68d7e46dbf.rmeta --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-b6b87ac485e83773.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-5770dbf9a1bd75a4.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-a80f11789cd3d123.rmeta --cap-lints=warn --crate-version 0.2.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "566b0d9b803582f14a53cc6a9f8ff45469591b972483e8b6e2e021ccd8038301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "566b0d9b803582f14a53cc6a9f8ff45469591b972483e8b6e2e021ccd8038301", kill_on_drop: false }`
[INFO] [stdout] 566b0d9b803582f14a53cc6a9f8ff45469591b972483e8b6e2e021ccd8038301