[INFO] fetching crate parking_lot_mpsc 0.1.5...
[INFO] checking parking_lot_mpsc-0.1.5 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate parking_lot_mpsc 0.1.5 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate parking_lot_mpsc 0.1.5 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate parking_lot_mpsc 0.1.5
[INFO] finished tweaking crates.io crate parking_lot_mpsc 0.1.5
[INFO] tweaked toml for crates.io crate parking_lot_mpsc 0.1.5 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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=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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 4a36ec9db2bf337610819c04c6e08dd0d03a0a38decac22ca15ac5177d63f920
[INFO] running `"docker" "start" "-a" "4a36ec9db2bf337610819c04c6e08dd0d03a0a38decac22ca15ac5177d63f920"`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking parking_lot_mpsc v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/select.rs:108:19
[INFO] [stderr]     |
[INFO] [stderr] 108 |     packet: &'rx (Packet+'rx),
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Packet+'rx`
[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:1538:32
[INFO] [stderr]      |
[INFO] [stderr] 1538 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1578:32
[INFO] [stderr]      |
[INFO] [stderr] 1578 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1595:32
[INFO] [stderr]      |
[INFO] [stderr] 1595 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1626:32
[INFO] [stderr]      |
[INFO] [stderr] 1626 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1656:32
[INFO] [stderr]      |
[INFO] [stderr] 1656 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/select.rs:108:19
[INFO] [stderr]     |
[INFO] [stderr] 108 |     packet: &'rx (Packet+'rx),
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Packet+'rx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:390:34
[INFO] [stderr]     |
[INFO] [stderr] 390 |             _bar = rx2.recv() => { panic!() }
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:394:34
[INFO] [stderr]     |
[INFO] [stderr] 394 |             _foo = rx1.recv() => { panic!() },
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:395:33
[INFO] [stderr]     |
[INFO] [stderr] 395 |             bar = rx2.recv() => { assert_eq!(bar.unwrap(), 2) }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:400:34
[INFO] [stderr]     |
[INFO] [stderr] 400 |             _bar = rx2.recv() => { panic!() }
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:417:34
[INFO] [stderr]     |
[INFO] [stderr] 417 |             _foo = rx1.recv() => { panic!("1") },
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:418:34
[INFO] [stderr]     |
[INFO] [stderr] 418 |             _foo = rx2.recv() => { panic!("2") },
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:419:34
[INFO] [stderr]     |
[INFO] [stderr] 419 |             _foo = rx3.recv() => { panic!("3") },
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:420:34
[INFO] [stderr]     |
[INFO] [stderr] 420 |             _foo = rx4.recv() => { panic!("4") },
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:432:33
[INFO] [stderr]     |
[INFO] [stderr] 432 |             _a1 = rx1.recv() => { panic!() },
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:452:32
[INFO] [stderr]     |
[INFO] [stderr] 452 |             _b = rx2.recv() => { panic!() }
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:456:31
[INFO] [stderr]     |
[INFO] [stderr] 456 |             a = rx1.recv() => { assert!(a.is_err()) },
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/select.rs:457:32
[INFO] [stderr]     |
[INFO] [stderr] 457 |             _b = rx2.recv() => { panic!() }
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1538:32
[INFO] [stderr]      |
[INFO] [stderr] 1538 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1578:32
[INFO] [stderr]      |
[INFO] [stderr] 1578 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1595:32
[INFO] [stderr]      |
[INFO] [stderr] 1595 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1626:32
[INFO] [stderr]      |
[INFO] [stderr] 1626 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1656:32
[INFO] [stderr]      |
[INFO] [stderr] 1656 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
[INFO] [stderr]    --> src/select.rs:522:13
[INFO] [stderr]     |
[INFO] [stderr] 522 |             tx1.clone();
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
[INFO] [stderr]    --> src/select.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |             tx1.clone();
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.91s
[INFO] running `"docker" "inspect" "4a36ec9db2bf337610819c04c6e08dd0d03a0a38decac22ca15ac5177d63f920"`
[INFO] running `"docker" "rm" "-f" "4a36ec9db2bf337610819c04c6e08dd0d03a0a38decac22ca15ac5177d63f920"`
[INFO] [stdout] 4a36ec9db2bf337610819c04c6e08dd0d03a0a38decac22ca15ac5177d63f920