[INFO] crate msg-transmitter 0.3.2 is already in cache
[INFO] checking msg-transmitter-0.3.2 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate msg-transmitter 0.3.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate msg-transmitter 0.3.2 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate msg-transmitter 0.3.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate msg-transmitter 0.3.2
[INFO] tweaked toml for crates.io crate msg-transmitter 0.3.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa1d8f7915fa5cd71f8df31a1ad91293be9f8e573351d51f434a0ec87c9b8f90
[INFO] running `"docker" "start" "-a" "fa1d8f7915fa5cd71f8df31a1ad91293be9f8e573351d51f434a0ec87c9b8f90"`
[INFO] [stderr]     Checking msg-transmitter v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:161:33
[INFO] [stderr]     |
[INFO] [stderr] 161 |                          -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:179:29
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 let rx: Box<Stream<Item=Option<T>, Error=io::Error> + Send> = Box::new(rx.map_err(|_| panic!()));
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream<Item=Option<T>, Error=io::Error> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:245:33
[INFO] [stderr]     |
[INFO] [stderr] 245 |                          -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:255:17
[INFO] [stderr]     |
[INFO] [stderr] 255 |     let rx: Box<Stream<Item=Option<T>, Error=io::Error> + Send> = Box::new(rx.map_err(|_| panic!()));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream<Item=Option<T>, Error=io::Error> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 | ...                   -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp.rs:82:63
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn start_client<F>(&self, process_function: F) -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/uds.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 | ...                   -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/uds.rs:81:63
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn start_client<F>(&self, process_function: F) -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:161:33
[INFO] [stderr]     |
[INFO] [stderr] 161 |                          -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:179:29
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 let rx: Box<Stream<Item=Option<T>, Error=io::Error> + Send> = Box::new(rx.map_err(|_| panic!()));
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream<Item=Option<T>, Error=io::Error> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:245:33
[INFO] [stderr]     |
[INFO] [stderr] 245 |                          -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:255:17
[INFO] [stderr]     |
[INFO] [stderr] 255 |     let rx: Box<Stream<Item=Option<T>, Error=io::Error> + Send> = Box::new(rx.map_err(|_| panic!()));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream<Item=Option<T>, Error=io::Error> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 | ...                   -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp.rs:82:63
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn start_client<F>(&self, process_function: F) -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/uds.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 | ...                   -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/uds.rs:81:63
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn start_client<F>(&self, process_function: F) -> Box<Future<Item=(), Error=()> + Send + 'static>
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::sync::mpsc`
[INFO] [stderr]   --> examples/master_and_slave.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     use futures::sync::mpsc;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> examples/master_and_slave.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]    |                     ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `now`
[INFO] [stderr]   --> examples/master_and_slave.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let now = time::Instant::now();
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_now`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `"docker" "inspect" "fa1d8f7915fa5cd71f8df31a1ad91293be9f8e573351d51f434a0ec87c9b8f90"`
[INFO] running `"docker" "rm" "-f" "fa1d8f7915fa5cd71f8df31a1ad91293be9f8e573351d51f434a0ec87c9b8f90"`
[INFO] [stdout] fa1d8f7915fa5cd71f8df31a1ad91293be9f8e573351d51f434a0ec87c9b8f90