[INFO] fetching crate futures-mpsc 0.1.1...
[INFO] checking futures-mpsc-0.1.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate futures-mpsc 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate futures-mpsc 0.1.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-mpsc 0.1.1
[INFO] finished tweaking crates.io crate futures-mpsc 0.1.1
[INFO] tweaked toml for crates.io crate futures-mpsc 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01e0db3a37df1edf7c05cd25516e4aa30cd7334c141763a3b10f1b05962e015c
[INFO] running `Command { std: "docker" "start" "-a" "01e0db3a37df1edf7c05cd25516e4aa30cd7334c141763a3b10f1b05962e015c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01e0db3a37df1edf7c05cd25516e4aa30cd7334c141763a3b10f1b05962e015c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e0db3a37df1edf7c05cd25516e4aa30cd7334c141763a3b10f1b05962e015c", kill_on_drop: false }`
[INFO] [stdout] 01e0db3a37df1edf7c05cd25516e4aa30cd7334c141763a3b10f1b05962e015c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 639b6811bc82ed2b9cf8047607e39ab67e6abcf0e571d857cc0df36040da8a91
[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" "639b6811bc82ed2b9cf8047607e39ab67e6abcf0e571d857cc0df36040da8a91", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-mpsc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         try!(self.do_send(Some(msg), true));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         try!(self.do_send(Some(msg), true));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:418:18
[INFO] [stdout]     |
[INFO] [stdout] 418 |             Some(task::park())
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:453:26
[INFO] [stdout]     |
[INFO] [stdout] 453 |             *task = Some(task::park());
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:683:31
[INFO] [stdout]     |
[INFO] [stdout] 683 |         recv_task.task = Some(task::park());
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:418:18
[INFO] [stdout]     |
[INFO] [stdout] 418 |             Some(task::park())
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:453:26
[INFO] [stdout]     |
[INFO] [stdout] 453 |             *task = Some(task::park());
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::task::park`: renamed to `current`
[INFO] [stdout]    --> src/lib.rs:683:31
[INFO] [stdout]     |
[INFO] [stdout] 683 |         recv_task.task = Some(task::park());
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:410:18
[INFO] [stdout]     |
[INFO] [stdout] 410 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:410:18
[INFO] [stdout]     |
[INFO] [stdout] 410 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:534:49
[INFO] [stdout]     |
[INFO] [stdout] 534 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:534:49
[INFO] [stdout]     |
[INFO] [stdout] 534 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:599:30
[INFO] [stdout]     |
[INFO] [stdout] 599 |                         task.unpark();
[INFO] [stdout]     |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:647:30
[INFO] [stdout]     |
[INFO] [stdout] 647 |                         task.unpark();
[INFO] [stdout]     |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:599:30
[INFO] [stdout]     |
[INFO] [stdout] 599 |                         task.unpark();
[INFO] [stdout]     |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::task::Task::unpark`: renamed to `notify`
[INFO] [stdout]    --> src/lib.rs:647:30
[INFO] [stdout]     |
[INFO] [stdout] 647 |                         task.unpark();
[INFO] [stdout]     |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx` is never read
[INFO] [stdout]   --> tests/test_mpsc.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         tx = tx.send(2).wait().unwrap();
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "639b6811bc82ed2b9cf8047607e39ab67e6abcf0e571d857cc0df36040da8a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639b6811bc82ed2b9cf8047607e39ab67e6abcf0e571d857cc0df36040da8a91", kill_on_drop: false }`
[INFO] [stdout] 639b6811bc82ed2b9cf8047607e39ab67e6abcf0e571d857cc0df36040da8a91