[INFO] fetching crate mqtt 0.1.4...
[INFO] checking mqtt-0.1.4 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate mqtt 0.1.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mqtt 0.1.4 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqtt 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mqtt 0.1.4
[INFO] tweaked toml for crates.io crate mqtt 0.1.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rotor v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45054321aa6b750259f340f47baa185941a6e141036c8488023c51f89db0bfe2
[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" "45054321aa6b750259f340f47baa185941a6e141036c8488023c51f89db0bfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45054321aa6b750259f340f47baa185941a6e141036c8488023c51f89db0bfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45054321aa6b750259f340f47baa185941a6e141036c8488023c51f89db0bfe2", kill_on_drop: false }`
[INFO] [stdout] 45054321aa6b750259f340f47baa185941a6e141036c8488023c51f89db0bfe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTFLAGS=--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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05c510dc6fd6fe60eb8782e5af6380507211aa3b8b73dc8b5c6e4f6e72a2b27a
[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" "05c510dc6fd6fe60eb8782e5af6380507211aa3b8b73dc8b5c6e4f6e72a2b27a", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking quick-error v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking rotor v0.6.3
[INFO] [stderr]     Checking mqtt v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain!{
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stdout] 6  | |         Io(::std::io::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keep_alive`
[INFO] [stdout]    --> src/client.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     keep_alive: Duration,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `echo_client`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/echo_client.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved imports `bytes::ByteBuf`, `bytes::SliceBuf`
[INFO] [stdout]   --> examples/echo_server.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stdout]    |                          ^^^^^^^  ^^^^^^^^ no `SliceBuf` in the root
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          no `ByteBuf` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> examples/echo_server.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     error_chain!{
[INFO] [stdout] 35 | |         types {
[INFO] [stdout] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 37 | |         }
[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 `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> examples/echo_server.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     error_chain!{
[INFO] [stdout] 35 | |         types {
[INFO] [stdout] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 37 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 50 | |         }
[INFO] [stdout] 51 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (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 beta release channel
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keep_alive`
[INFO] [stdout]    --> src/client.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     keep_alive: Duration,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] warning: use of deprecated associated function `mio::Event::kind`: use Event::readiness()
[INFO] [stdout]    --> examples/echo_server.rs:123:62
[INFO] [stdout]     |
[INFO] [stdout] 123 | ...                   entry.get_mut().handle(event.kind(), poll)?;
[INFO] [stdout]     |                                                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mio::Ready::is_hup`: use UnixReady instead
[INFO] [stdout]    --> examples/echo_server.rs:308:24
[INFO] [stdout]     |
[INFO] [stdout] 308 |             _ if ready.is_hup() => {
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mio::Ready::none`: use Ready::empty instead
[INFO] [stdout]    --> examples/echo_server.rs:378:39
[INFO] [stdout]     |
[INFO] [stdout] 378 |                           _ => Ready::none(),
[INFO] [stdout]     |                                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> examples/echo_server.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     error_chain!{
[INFO] [stdout] 35 | |         types {
[INFO] [stdout] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 37 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 50 | |         }
[INFO] [stdout] 51 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buf`
[INFO] [stdout]   --> examples/echo_server.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufMut`
[INFO] [stdout]   --> examples/echo_server.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "05c510dc6fd6fe60eb8782e5af6380507211aa3b8b73dc8b5c6e4f6e72a2b27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05c510dc6fd6fe60eb8782e5af6380507211aa3b8b73dc8b5c6e4f6e72a2b27a", kill_on_drop: false }`
[INFO] [stdout] 05c510dc6fd6fe60eb8782e5af6380507211aa3b8b73dc8b5c6e4f6e72a2b27a
