[INFO] cloning repository https://github.com/Keksoj/mqtt_ping_pong
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Keksoj/mqtt_ping_pong" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeksoj%2Fmqtt_ping_pong", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeksoj%2Fmqtt_ping_pong'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13c5884b1690f29b8383da5d5d0f47d3aed91234
[INFO] checking Keksoj/mqtt_ping_pong against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeksoj%2Fmqtt_ping_pong" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Keksoj/mqtt_ping_pong on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Keksoj/mqtt_ping_pong
[INFO] finished tweaking git repo https://github.com/Keksoj/mqtt_ping_pong
[INFO] tweaked toml for git repo https://github.com/Keksoj/mqtt_ping_pong written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Keksoj/mqtt_ping_pong already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paho-mqtt v0.6.0
[INFO] [stderr]   Downloaded paho-mqtt-sys v0.2.1
[INFO] running `Command { std: "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" "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" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af6443b31c212fb9582629c8f732aecb03f3c17390d0124b52b4a8c17b569da8
[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" "af6443b31c212fb9582629c8f732aecb03f3c17390d0124b52b4a8c17b569da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af6443b31c212fb9582629c8f732aecb03f3c17390d0124b52b4a8c17b569da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af6443b31c212fb9582629c8f732aecb03f3c17390d0124b52b4a8c17b569da8", kill_on_drop: false }`
[INFO] [stdout] af6443b31c212fb9582629c8f732aecb03f3c17390d0124b52b4a8c17b569da8
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b4fc741fcf894331520bfad06c475ee47ff1458f3d03083668576923cc791d
[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" "60b4fc741fcf894331520bfad06c475ee47ff1458f3d03083668576923cc791d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futures-timer v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling paho-mqtt-sys v0.2.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking paho-mqtt v0.6.0
[INFO] [stderr]     Checking mqtt_ping_pong v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SyncMqttClient`
[INFO] [stdout]  --> src/sync_ping.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sync_lib::{SyncMqttClient, SyncMqttClientBuilder};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SyncMqttClient`
[INFO] [stdout]  --> src/sync_ping.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sync_lib::{SyncMqttClient, SyncMqttClientBuilder};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SyncMqttClient`
[INFO] [stdout]  --> src/sync_pong.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sync_lib::{SyncMqttClient, SyncMqttClientBuilder};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SyncMqttClient`
[INFO] [stdout]  --> src/sync_pong.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sync_lib::{SyncMqttClient, SyncMqttClientBuilder};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `user_written_callback` in this scope
[INFO] [stdout]    --> src/async_lib.rs:192:42
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::user_written_callback;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `user_written_callback` in this scope
[INFO] [stdout]    --> src/async_lib.rs:192:42
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::user_written_callback;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `user_written_callback` in this scope
[INFO] [stdout]    --> src/async_lib.rs:192:42
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncMqttClient`
[INFO] [stdout]  --> src/async_ping.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_lib::{AsyncMqttClient, AsyncMqttClientBuilder};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `user_written_callback` in this scope
[INFO] [stdout]    --> src/async_lib.rs:192:42
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncMqttClient`
[INFO] [stdout]  --> src/async_ping.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_lib::{AsyncMqttClient, AsyncMqttClientBuilder};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt_ping_pong`.
[INFO] [stdout] error[E0277]: expected a `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]    --> src/async_lib.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn set_message_callback<T: HandleMessage + for<'r> FnMut<(&'r AsyncClient, Option<Message>)>>(&self, user_written_callback: T)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]    --> src/async_lib.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn set_message_callback<T: HandleMessage + for<'r> FnMut<(&'r AsyncClient, Option<Message>)>>(&self, user_written_callback: T)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `for<'r> fn(&'r AsyncMqttClient, Option<Message>) -> std::result::Result<(), Box<(dyn std::error::Error + 'static)>> {user_written_callback}: HandleMessage` is not satisfied
[INFO] [stdout]   --> src/async_pong.rs:27:44
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async_mqtt_client.set_message_callback(user_written_callback);
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^ the trait `HandleMessage` is not implemented for `for<'r> fn(&'r AsyncMqttClient, Option<Message>) -> std::result::Result<(), Box<(dyn std::error::Error + 'static)>> {user_written_callback}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `for<'r> fn(&'r AsyncMqttClient, Option<Message>) -> std::result::Result<(), Box<(dyn std::error::Error + 'static)>> {user_written_callback}: HandleMessage` is not satisfied
[INFO] [stdout]   --> src/async_pong.rs:27:44
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async_mqtt_client.set_message_callback(user_written_callback);
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^ the trait `HandleMessage` is not implemented for `for<'r> fn(&'r AsyncMqttClient, Option<Message>) -> std::result::Result<(), Box<(dyn std::error::Error + 'static)>> {user_written_callback}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]    --> src/async_lib.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn set_message_callback<T: HandleMessage + for<'r> FnMut<(&'r AsyncClient, Option<Message>)>>(&self, user_written_callback: T)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]    --> src/async_lib.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.client.set_message_callback(user_written_callback);
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut<(&AsyncClient, Option<Message>)>` closure, found `T`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting this bound
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn set_message_callback<T: HandleMessage + for<'r> FnMut<(&'r AsyncClient, Option<Message>)>>(&self, user_written_callback: T)
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "60b4fc741fcf894331520bfad06c475ee47ff1458f3d03083668576923cc791d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b4fc741fcf894331520bfad06c475ee47ff1458f3d03083668576923cc791d", kill_on_drop: false }`
[INFO] [stdout] 60b4fc741fcf894331520bfad06c475ee47ff1458f3d03083668576923cc791d
