[INFO] fetching crate mqtt 0.1.4...
[INFO] testing mqtt-0.1.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate mqtt 0.1.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate mqtt 0.1.4 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d042856b13fcd3cdc4cffd7e9b878797f7348ad1e460dd496dbb6b41a3dbc4d9
[INFO] running `"docker" "start" "-a" "d042856b13fcd3cdc4cffd7e9b878797f7348ad1e460dd496dbb6b41a3dbc4d9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling quick-error v0.2.2
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling rotor v0.6.3
[INFO] [stderr]    Compiling mqtt v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keep_alive`
[INFO] [stderr]    --> src/client.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     keep_alive: Duration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.57s
[INFO] running `"docker" "inspect" "d042856b13fcd3cdc4cffd7e9b878797f7348ad1e460dd496dbb6b41a3dbc4d9"`
[INFO] running `"docker" "rm" "-f" "d042856b13fcd3cdc4cffd7e9b878797f7348ad1e460dd496dbb6b41a3dbc4d9"`
[INFO] [stdout] d042856b13fcd3cdc4cffd7e9b878797f7348ad1e460dd496dbb6b41a3dbc4d9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1033085f4ed2fc42b5ba25a837304dbc251ad235f1b200c274a46c236b5acb71
[INFO] running `"docker" "start" "-a" "1033085f4ed2fc42b5ba25a837304dbc251ad235f1b200c274a46c236b5acb71"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keep_alive`
[INFO] [stderr]    --> src/client.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     keep_alive: Duration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling mqtt v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `echo_client`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/echo_client.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `mqtt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved imports `bytes::ByteBuf`, `bytes::SliceBuf`
[INFO] [stderr]   --> examples/echo_server.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stderr]    |                          ^^^^^^^  ^^^^^^^^ no `SliceBuf` in the root
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          no `ByteBuf` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/echo_server.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     error_chain!{
[INFO] [stderr] 35 | |         types {
[INFO] [stderr] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 37 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 50 | |         }
[INFO] [stderr] 51 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> examples/echo_server.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     error_chain!{
[INFO] [stderr] 35 | |         types {
[INFO] [stderr] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 37 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 50 | |         }
[INFO] [stderr] 51 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Event::kind': use Event::readiness()
[INFO] [stderr]    --> examples/echo_server.rs:123:62
[INFO] [stderr]     |
[INFO] [stderr] 123 | ...                   entry.get_mut().handle(event.kind(), poll)?;
[INFO] [stderr]     |                                                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Ready::is_hup': use UnixReady instead
[INFO] [stderr]    --> examples/echo_server.rs:308:24
[INFO] [stderr]     |
[INFO] [stderr] 308 |             _ if ready.is_hup() => {
[INFO] [stderr]     |                        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Ready::none': use Ready::empty instead
[INFO] [stderr]    --> examples/echo_server.rs:378:32
[INFO] [stderr]     |
[INFO] [stderr] 378 |                           _ => Ready::none(),
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> examples/echo_server.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     error_chain!{
[INFO] [stderr] 35 | |         types {
[INFO] [stderr] 36 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 37 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 50 | |         }
[INFO] [stderr] 51 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buf`
[INFO] [stderr]   --> examples/echo_server.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufMut`
[INFO] [stderr]   --> examples/echo_server.rs:27:18
[INFO] [stderr]    |
[INFO] [stderr] 27 | use bytes::{Buf, BufMut, ByteBuf, SliceBuf};
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain!{
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 6  | |         Io(::std::io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keep_alive`
[INFO] [stderr]    --> src/client.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     keep_alive: Duration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1033085f4ed2fc42b5ba25a837304dbc251ad235f1b200c274a46c236b5acb71"`
[INFO] running `"docker" "rm" "-f" "1033085f4ed2fc42b5ba25a837304dbc251ad235f1b200c274a46c236b5acb71"`
[INFO] [stdout] 1033085f4ed2fc42b5ba25a837304dbc251ad235f1b200c274a46c236b5acb71