[INFO] fetching crate mco 0.1.48...
[INFO] testing mco-0.1.48 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mco 0.1.48 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mco 0.1.48
[INFO] finished tweaking crates.io crate mco 0.1.48
[INFO] tweaked toml for crates.io crate mco 0.1.48 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mco 0.1.48 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 90 packages to latest compatible versions
[INFO] [stderr]       Adding generator v0.7.5 (available: v0.8.7)
[INFO] [stderr]       Adding nix v0.27.1 (available: v0.30.1)
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.5)
[INFO] [stderr]       Adding socket2 v0.5.10 (available: v0.6.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (available: v0.61.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5619eaf618725620eb88e6643e353ee5955c578378a74beeffafa9164c05ccb
[INFO] running `Command { std: "docker" "start" "-a" "a5619eaf618725620eb88e6643e353ee5955c578378a74beeffafa9164c05ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5619eaf618725620eb88e6643e353ee5955c578378a74beeffafa9164c05ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5619eaf618725620eb88e6643e353ee5955c578378a74beeffafa9164c05ccb", kill_on_drop: false }`
[INFO] [stdout] a5619eaf618725620eb88e6643e353ee5955c578378a74beeffafa9164c05ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9275de53da9e36671144afd487535133617e383d2b3b80c8c3b0f6aad0258864
[INFO] running `Command { std: "docker" "start" "-a" "9275de53da9e36671144afd487535133617e383d2b3b80c8c3b0f6aad0258864", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cc v1.2.44
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling generator v0.7.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling nix v0.27.1
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling mco v0.1.48 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(nightly, feature(thread_local))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![cfg_attr(nightly, feature(core_intrinsics))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![cfg_attr(nightly, feature(min_specialization))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]  --> src/std/queue/mod.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(all(nightly, test), feature(test))]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:252:15
[INFO] [stdout]     |
[INFO] [stdout] 252 |         #[cfg(nightly)]
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:254:19
[INFO] [stdout]     |
[INFO] [stdout] 254 |         #[cfg(not(nightly))]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stdout]  --> src/io/sys/unix/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     target_os = "bitrig",
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use smallvec::SmallVec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |         #[cfg(nightly)]
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |         #[cfg(not(nightly))]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]   --> src/std/time/sys/unix.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | #[cfg(any(target_os = "nacl", target_os = "solaris", target_os = "illumos"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]    --> src/std/time/sys/unix.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         target_os = "nacl",
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `alloc`
[INFO] [stdout]    --> src/std/lazy/mod.rs:325:7
[INFO] [stdout]     |
[INFO] [stdout] 325 | #[cfg(feature = "alloc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `js-sys` and `wasm-bindgen`
[INFO] [stdout]     = help: consider adding `alloc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_create`: Use Epoll::new() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let epfd = epoll_create().map_err(from_nix_error)?;
[INFO] [stdout]    |                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, evfd, &mut info).map_err(from_nix_error)?;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_wait`: Use Epoll::wait() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = epoll_wait(epfd, events, timeout_ms).map_err(from_nix_error)?;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, fd, &mut info)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         epoll_ctl(epfd, EpollOp::EpollCtlDel, fd, &mut info).ok();
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let ret = write(unsafe { self.vec.get_unchecked(id) }.evfd, buf);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/park.rs:215:19
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/net/tcp.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/os/unix/net.rs:528:21
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (&(*this).slots).get_unchecked(i);
[INFO] [stdout]     |                        ++             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                            ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/std/sync/mutex.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stdout]    |                 ^^^^^                ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/mutex.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                 ^^^^^                ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:198:18
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:206:22
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                      ^^^^^                   ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:366:21
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<T> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.90s
[INFO] running `Command { std: "docker" "inspect" "9275de53da9e36671144afd487535133617e383d2b3b80c8c3b0f6aad0258864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9275de53da9e36671144afd487535133617e383d2b3b80c8c3b0f6aad0258864", kill_on_drop: false }`
[INFO] [stdout] 9275de53da9e36671144afd487535133617e383d2b3b80c8c3b0f6aad0258864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20aa583cc4ef7449ef97707e858445a1dfefbffd75127f548fd8ae9812197c10
[INFO] running `Command { std: "docker" "start" "-a" "20aa583cc4ef7449ef97707e858445a1dfefbffd75127f548fd8ae9812197c10", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(nightly, feature(thread_local))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![cfg_attr(nightly, feature(core_intrinsics))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![cfg_attr(nightly, feature(min_specialization))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]  --> src/std/queue/mod.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(all(nightly, test), feature(test))]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:252:15
[INFO] [stdout]     |
[INFO] [stdout] 252 |         #[cfg(nightly)]
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:254:19
[INFO] [stdout]     |
[INFO] [stdout] 254 |         #[cfg(not(nightly))]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stdout]  --> src/io/sys/unix/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     target_os = "bitrig",
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use smallvec::SmallVec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |         #[cfg(nightly)]
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |         #[cfg(not(nightly))]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]   --> src/std/time/sys/unix.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | #[cfg(any(target_os = "nacl", target_os = "solaris", target_os = "illumos"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]    --> src/std/time/sys/unix.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         target_os = "nacl",
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `alloc`
[INFO] [stdout]    --> src/std/lazy/mod.rs:325:7
[INFO] [stdout]     |
[INFO] [stdout] 325 | #[cfg(feature = "alloc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `js-sys` and `wasm-bindgen`
[INFO] [stdout]     = help: consider adding `alloc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_create`: Use Epoll::new() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let epfd = epoll_create().map_err(from_nix_error)?;
[INFO] [stdout]    |                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, evfd, &mut info).map_err(from_nix_error)?;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_wait`: Use Epoll::wait() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = epoll_wait(epfd, events, timeout_ms).map_err(from_nix_error)?;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, fd, &mut info)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         epoll_ctl(epfd, EpollOp::EpollCtlDel, fd, &mut info).ok();
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let ret = write(unsafe { self.vec.get_unchecked(id) }.evfd, buf);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/park.rs:215:19
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/net/tcp.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/os/unix/net.rs:528:21
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (&(*this).slots).get_unchecked(i);
[INFO] [stdout]     |                        ++             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                            ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/std/sync/mutex.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stdout]    |                 ^^^^^                ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/mutex.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                 ^^^^^                ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mco v0.1.48 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:198:18
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:206:22
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                      ^^^^^                   ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:366:21
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<T> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/channel.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             s1.send(1);
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let _ = s1.send(1);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/channel.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             s1.send(1);
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let _ = s1.send(1);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> tests/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     unsafe { j.coroutine().cancel() };
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> tests/lib.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     unsafe { j.coroutine().cancel() };
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]    --> tests/lib.rs:249:13
[INFO] [stdout]     |
[INFO] [stdout] 249 |             a = 5;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(nightly, feature(thread_local))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![cfg_attr(nightly, feature(core_intrinsics))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![cfg_attr(nightly, feature(min_specialization))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]  --> src/std/queue/mod.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(all(nightly, test), feature(test))]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/scheduler.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[cfg(not(nightly))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:252:15
[INFO] [stdout]     |
[INFO] [stdout] 252 |         #[cfg(nightly)]
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/scheduler.rs:254:19
[INFO] [stdout]     |
[INFO] [stdout] 254 |         #[cfg(not(nightly))]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stdout]  --> src/io/sys/unix/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     target_os = "bitrig",
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use smallvec::SmallVec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |         #[cfg(nightly)]
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/io/event_loop.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |         #[cfg(not(nightly))]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `defer`
[INFO] [stdout]   --> src/std/sync/once.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     use crate::{chan, defer};
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `defer` and `sleep`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:454:17
[INFO] [stdout]     |
[INFO] [stdout] 454 |     use crate::{defer, sleep};
[INFO] [stdout]     |                 ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     use std::sync::atomic::Ordering;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::std::lazy::sync::Lazy`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |     use crate::std::lazy::sync::Lazy;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeMap`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |     use std::collections::BTreeMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |     use std::sync::atomic::Ordering;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStream`
[INFO] [stdout]   --> src/std/io/stream_chan.rs:46:38
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use crate::std::io::{ChanStream, TryStream};
[INFO] [stdout]    |                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::ControlFlow`
[INFO] [stdout]   --> src/std/io/stream_chan.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     use std::ops::ControlFlow;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]   --> src/std/time/sys/unix.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | #[cfg(any(target_os = "nacl", target_os = "solaris", target_os = "illumos"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stdout]    --> src/std/time/sys/unix.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         target_os = "nacl",
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `alloc`
[INFO] [stdout]    --> src/std/lazy/mod.rs:325:7
[INFO] [stdout]     |
[INFO] [stdout] 325 | #[cfg(feature = "alloc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `js-sys` and `wasm-bindgen`
[INFO] [stdout]     = help: consider adding `alloc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sleep`
[INFO] [stdout]    --> src/std/vec/mod.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |     use crate::sleep;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]    --> src/std/vec/mod.rs:409:9
[INFO] [stdout]     |
[INFO] [stdout] 409 |     use std::ops::Deref;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stdout]    --> src/std/vec/mod.rs:410:9
[INFO] [stdout]     |
[INFO] [stdout] 410 |     use std::sync::atomic::Ordering;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_create`: Use Epoll::new() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let epfd = epoll_create().map_err(from_nix_error)?;
[INFO] [stdout]    |                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]   --> src/io/sys/unix/epoll.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, evfd, &mut info).map_err(from_nix_error)?;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_wait`: Use Epoll::wait() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let n = epoll_wait(epfd, events, timeout_ms).map_err(from_nix_error)?;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, fd, &mut info)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         epoll_ctl(epfd, EpollOp::EpollCtlDel, fd, &mut info).ok();
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/io/sys/unix/co_io.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 236 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/queue/mpsc_list.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/queue/mpsc_list_v1.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/sync/condvar.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/sync/mutex.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/sync/rwlock.rs:326:5
[INFO] [stdout]     |
[INFO] [stdout] 326 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/sync/semphore.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]    --> src/std/sync/sync_flag.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     #![feature(test)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/std/blocking/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             panic!("e");
[INFO] [stdout]    |             ----------- any code following this expression is unreachable
[INFO] [stdout] 74 |             return 1;
[INFO] [stdout]    |             ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/io/sys/unix/epoll.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let ret = write(unsafe { self.vec.get_unchecked(id) }.evfd, buf);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/condvar.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |             unsafe { vec[i].coroutine().cancel() };
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/mutex.rs:523:9
[INFO] [stdout]     |
[INFO] [stdout] 523 |         unsafe { h1.coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/mutex.rs:564:9
[INFO] [stdout]     |
[INFO] [stdout] 564 |         unsafe { h1.coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/std/sync/once.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         for i in 0..n {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/std/sync/once.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |         for i in 0..n {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/rwlock.rs:634:9
[INFO] [stdout]     |
[INFO] [stdout] 634 |         unsafe { vec[cancel_id - 1].coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/rwlock.rs:684:9
[INFO] [stdout]     |
[INFO] [stdout] 684 |         unsafe { h.coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/semphore.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         unsafe { h1.coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/std/sync/sync_flag.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         unsafe { h1.coroutine().cancel() };
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:513:21
[INFO] [stdout]     |
[INFO] [stdout] 513 |                 let insert = m2.insert(1, 2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:508:21
[INFO] [stdout]     |
[INFO] [stdout] 508 |                 let insert = m1.insert(1, 2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:542:25
[INFO] [stdout]     |
[INFO] [stdout] 542 |                     let insert = m2.insert(i, i);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:535:25
[INFO] [stdout]     |
[INFO] [stdout] 535 |                     let insert = m1.insert(i, i);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:556:13
[INFO] [stdout]     |
[INFO] [stdout] 556 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:576:13
[INFO] [stdout]     |
[INFO] [stdout] 576 |         let insert = m.insert(1, a);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:613:13
[INFO] [stdout]     |
[INFO] [stdout] 613 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:623:13
[INFO] [stdout]     |
[INFO] [stdout] 623 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:641:21
[INFO] [stdout]     |
[INFO] [stdout] 641 |                 let insert = m.insert(i, i);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:679:21
[INFO] [stdout]     |
[INFO] [stdout] 679 |                 let g = m2.remove(&i);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:670:21
[INFO] [stdout]     |
[INFO] [stdout] 670 |                 let insert = m.insert(i, i);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:665:13
[INFO] [stdout]     |
[INFO] [stdout] 665 |         for mut i in 0..10000 {
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |                 let insert = m2.insert(1, 2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:487:21
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 let insert = m1.insert(1, 2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:502:13
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:510:13
[INFO] [stdout]     |
[INFO] [stdout] 510 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:520:13
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let insert = m.insert(1, 2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/std/io/stream_chan.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut c = ChanStream { recv: r, send: s };
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/std/io/stream_chan.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut c = ChanStream { recv: r, send: s };
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/std/time/tick.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut t = Arc::new(Ticker::new(Duration::from_secs(1)));
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/std/time/time.rs:566:13
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let mut now = Time::now();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |                 let insert = m2.push(2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:458:21
[INFO] [stdout]     |
[INFO] [stdout] 458 |                 let insert = m1.push(2);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:489:25
[INFO] [stdout]     |
[INFO] [stdout] 489 |                     let insert = m2.push(i);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:482:25
[INFO] [stdout]     |
[INFO] [stdout] 482 |                     let insert = m1.push(i);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:500:13
[INFO] [stdout]     |
[INFO] [stdout] 500 |         let insert = m.push(2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:520:13
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let insert = m.push(a);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/std/vec/mod.rs:534:13
[INFO] [stdout]     |
[INFO] [stdout] 534 |         for i in 0..1000000 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/std/vec/mod.rs:543:13
[INFO] [stdout]     |
[INFO] [stdout] 543 |         for i in 0..1000000 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:557:13
[INFO] [stdout]     |
[INFO] [stdout] 557 |         let insert = m.push(2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insert`
[INFO] [stdout]    --> src/std/vec/mod.rs:566:13
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let insert = m.push(2);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/park.rs:215:19
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delay_drop(&self) -> DropGuard<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/net/tcp.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 409 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/os/unix/net.rs:528:21
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/queue/array_queue.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         q.push(1);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 481 |         let _ = q.push(1);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/queue/array_queue.rs:482:9
[INFO] [stdout]     |
[INFO] [stdout] 482 |         q.push(2);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 482 |         let _ = q.push(2);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/queue/array_queue.rs:483:9
[INFO] [stdout]     |
[INFO] [stdout] 483 |         q.push(3);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let _ = q.push(3);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let slot = (&(*this).slots).get_unchecked(i);
[INFO] [stdout]     |                        ++             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 470 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                                ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this raw pointer has type `*mut Block<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stdout]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 536 |                 let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stdout]     |                            ++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         c.notify_one();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let _ = c.notify_one();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         c.notify_all();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let _ = c.notify_all();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             c2.notify_one();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |             let _ = c2.notify_one();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         cond.notify_all();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let _ = cond.notify_all();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:280:13
[INFO] [stdout]     |
[INFO] [stdout] 280 |             c2.notify_one();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 280 |             let _ = c2.notify_one();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:300:13
[INFO] [stdout]     |
[INFO] [stdout] 300 |             c2.notify_one();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 300 |             let _ = c2.notify_one();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/condvar.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 357 |         cond.notify_all();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let _ = cond.notify_all();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/std/sync/mutex.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stdout]    |                 ^^^^^                ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/mutex.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/mutex.rs:393:13
[INFO] [stdout]     |
[INFO] [stdout] 393 |             cvar.notify_one();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 393 |             let _ = cvar.notify_one();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/mutex.rs:415:13
[INFO] [stdout]     |
[INFO] [stdout] 415 |             cvar.notify_one();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 415 |             let _ = cvar.notify_one();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/std/sync/once.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |             panic!(format!("once failed inside run: {} is not 1", o.value()));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 83 -             panic!(format!("once failed inside run: {} is not 1", o.value()));
[INFO] [stdout] 83 +             panic!("once failed inside run: {} is not 1", o.value());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/std/sync/once.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         s.send(true);
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = s.send(true);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/once.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             r.recv();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let _ = r.recv();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/std/sync/once.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |             panic!(format!("once failed outside run: {} is not 1", one.value()));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 111 -             panic!(format!("once failed outside run: {} is not 1", one.value()));
[INFO] [stdout] 111 +             panic!("once failed outside run: {} is not 1", one.value());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/once.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 | /         catch_unwind(|| {
[INFO] [stdout] 119 | |             once.r#do(|| {
[INFO] [stdout] 120 | |                 panic!("failed");
[INFO] [stdout] 121 | |             });
[INFO] [stdout] 122 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = catch_unwind(|| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                 ^^^^^                ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:198:18
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/rwlock.rs:206:22
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                      ^^^^^                   ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/rwlock.rs:641:13
[INFO] [stdout]     |
[INFO] [stdout] 641 |             cond.notify_all();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 641 |             let _ = cond.notify_all();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:643:33
[INFO] [stdout]     |
[INFO] [stdout] 643 |                 assert_eq!(i, *g.deref());
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/std/sync/sync_hash_map.rs:672:33
[INFO] [stdout]     |
[INFO] [stdout] 672 |                 assert_eq!(i, *g.deref());
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/std/sync/sync_btree_map.rs:504:25
[INFO] [stdout]     |
[INFO] [stdout] 504 |         assert_eq!(2, *g.deref());
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/std/sync/channel.rs:366:21
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<T> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_iter(&self) -> TryIter<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/channel.rs:456:13
[INFO] [stdout]     |
[INFO] [stdout] 456 |             tx.send(1);
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 456 |             let _ = tx.send(1);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/sync/channel.rs:459:13
[INFO] [stdout]     |
[INFO] [stdout] 459 |             tx.send(2);
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 459 |             let _ = tx.send(2);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/std/io/stream_chan.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         s.send(Some(Ok(1)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let _ = s.send(Some(Ok(1)));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/std/io/stream_chan.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         s.send(None);
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let _ = s.send(None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/std/io/stream_chan.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         s.send(Some(Ok(1)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let _ = s.send(Some(Ok(1)));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/std/io/stream_chan.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         s.send(None);
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let _ = s.send(None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/std/time/tick.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         t.stop();
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = t.stop();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "20aa583cc4ef7449ef97707e858445a1dfefbffd75127f548fd8ae9812197c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20aa583cc4ef7449ef97707e858445a1dfefbffd75127f548fd8ae9812197c10", kill_on_drop: false }`
[INFO] [stdout] 20aa583cc4ef7449ef97707e858445a1dfefbffd75127f548fd8ae9812197c10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1bbdc3f4a735384cbb7cc6d358ef468e1e02519ea95cae126bd144212ee5907f
[INFO] running `Command { std: "docker" "start" "-a" "1bbdc3f4a735384cbb7cc6d358ef468e1e02519ea95cae126bd144212ee5907f", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/lib.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | #![cfg_attr(nightly, feature(thread_local))]
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/lib.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 | #![cfg_attr(nightly, feature(core_intrinsics))]
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/lib.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | #![cfg_attr(nightly, feature(min_specialization))]
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]  --> src/std/queue/mod.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(all(nightly, test), feature(test))]
[INFO] [stderr]   |                 ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/scheduler.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[cfg(nightly)]
[INFO] [stderr]    |       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/scheduler.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[cfg(not(nightly))]
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/scheduler.rs:27:7
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[cfg(nightly)]
[INFO] [stderr]    |       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/scheduler.rs:31:11
[INFO] [stderr]    |
[INFO] [stderr] 31 | #[cfg(not(nightly))]
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]    --> src/scheduler.rs:252:15
[INFO] [stderr]     |
[INFO] [stderr] 252 |         #[cfg(nightly)]
[INFO] [stderr]     |               ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]    --> src/scheduler.rs:254:19
[INFO] [stderr]     |
[INFO] [stderr] 254 |         #[cfg(not(nightly))]
[INFO] [stderr]     |                   ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `bitrig`
[INFO] [stderr]  --> src/io/sys/unix/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     target_os = "bitrig",
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `smallvec::SmallVec`
[INFO] [stderr]   --> src/io/sys/unix/epoll.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use smallvec::SmallVec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/io/event_loop.rs:21:15
[INFO] [stderr]    |
[INFO] [stderr] 21 |         #[cfg(nightly)]
[INFO] [stderr]    |               ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `nightly`
[INFO] [stderr]   --> src/io/event_loop.rs:23:19
[INFO] [stderr]    |
[INFO] [stderr] 23 |         #[cfg(not(nightly))]
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stderr]   --> src/std/time/sys/unix.rs:55:11
[INFO] [stderr]    |
[INFO] [stderr] 55 | #[cfg(any(target_os = "nacl", target_os = "solaris", target_os = "illumos"))]
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `nacl`
[INFO] [stderr]    --> src/std/time/sys/unix.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         target_os = "nacl",
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `managarm`, `motor`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, and `trusty` and 12 more
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `alloc`
[INFO] [stderr]    --> src/std/lazy/mod.rs:325:7
[INFO] [stderr]     |
[INFO] [stderr] 325 | #[cfg(feature = "alloc")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `feature` are: `js-sys` and `wasm-bindgen`
[INFO] [stderr]     = help: consider adding `alloc` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `nix::sys::epoll::epoll_create`: Use Epoll::new() instead
[INFO] [stderr]   --> src/io/sys/unix/epoll.rs:39:20
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let epfd = epoll_create().map_err(from_nix_error)?;
[INFO] [stderr]    |                    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stderr]   --> src/io/sys/unix/epoll.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, evfd, &mut info).map_err(from_nix_error)?;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `nix::sys::epoll::epoll_wait`: Use Epoll::wait() instead
[INFO] [stderr]    --> src/io/sys/unix/epoll.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let n = epoll_wait(epfd, events, timeout_ms).map_err(from_nix_error)?;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stderr]    --> src/io/sys/unix/epoll.rs:183:9
[INFO] [stderr]     |
[INFO] [stderr] 183 |         epoll_ctl(epfd, EpollOp::EpollCtlAdd, fd, &mut info)
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `nix::sys::epoll::epoll_ctl`: Use Epoll::epoll_ctl() instead
[INFO] [stderr]    --> src/io/sys/unix/epoll.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |         epoll_ctl(epfd, EpollOp::EpollCtlDel, fd, &mut info).ok();
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ret`
[INFO] [stderr]    --> src/io/sys/unix/epoll.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |         let ret = write(unsafe { self.vec.get_unchecked(id) }.evfd, buf);
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/park.rs:215:19
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn delay_drop(&self) -> DropGuard {
[INFO] [stderr]     |                   ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn delay_drop(&self) -> DropGuard<'_> {
[INFO] [stderr]     |                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/net/tcp.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |     pub fn incoming(&self) -> Incoming {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 409 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stderr]     |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/os/unix/net.rs:528:21
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn incoming(&self) -> Incoming {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 528 |     pub fn incoming(&self) -> Incoming<'_> {
[INFO] [stderr]     |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stderr]     |                        ^^----^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          this raw pointer has type `*mut Block<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:101:24
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let slot = (*this).slots.get_unchecked(i);
[INFO] [stderr]     |                        ^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stderr]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let slot = (&(*this).slots).get_unchecked(i);
[INFO] [stderr]     |                        ++             +
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stderr]     |
[INFO] [stderr] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:265:32
[INFO] [stderr]     |
[INFO] [stderr] 265 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 265 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stderr]     |                                ++              +
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stderr]     |
[INFO] [stderr] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:359:32
[INFO] [stderr]     |
[INFO] [stderr] 359 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 359 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stderr]     |                                ++              +
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stderr]     |
[INFO] [stderr] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  this raw pointer has type `*mut Block<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:470:32
[INFO] [stderr]     |
[INFO] [stderr] 470 |                     let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 470 |                     let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stderr]     |                                ++              +
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stderr]     |
[INFO] [stderr] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                            ^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              this raw pointer has type `*mut Block<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[seg_queue::Slot<T>]`
[INFO] [stderr]    --> src/std/queue/seg_queue.rs:536:28
[INFO] [stderr]     |
[INFO] [stderr] 536 |                 let slot = (*block).slots.get_unchecked(offset);
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:637:5
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 536 |                 let slot = (&(*block).slots).get_unchecked(offset);
[INFO] [stderr]     |                            ++              +
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/std/sync/mutex.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stderr]    |                 ^^^^^                ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/mutex.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stderr]     |                     ^^^^^                   ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stderr]     |                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/rwlock.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<T>> {
[INFO] [stderr]     |                 ^^^^^                ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn read(&self) -> LockResult<RwLockReadGuard<'_, T>> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/rwlock.rs:167:21
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stderr]     |                     ^^^^^                   ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stderr]     |                                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/rwlock.rs:198:18
[INFO] [stderr]     |
[INFO] [stderr] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<T>> {
[INFO] [stderr]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 198 |     pub fn write(&self) -> LockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stderr]     |                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/rwlock.rs:206:22
[INFO] [stderr]     |
[INFO] [stderr] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stderr]     |                      ^^^^^                   ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 206 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/channel.rs:362:17
[INFO] [stderr]     |
[INFO] [stderr] 362 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 362 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/std/sync/channel.rs:366:21
[INFO] [stderr]     |
[INFO] [stderr] 366 |     pub fn try_iter(&self) -> TryIter<T> {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 366 |     pub fn try_iter(&self) -> TryIter<'_, T> {
[INFO] [stderr]     |                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `defer`
[INFO] [stderr]   --> src/std/sync/once.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     use crate::{chan, defer};
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `defer` and `sleep`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:454:17
[INFO] [stderr]     |
[INFO] [stderr] 454 |     use crate::{defer, sleep};
[INFO] [stderr]     |                 ^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |     use std::collections::HashMap;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     use std::sync::atomic::Ordering;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::std::lazy::sync::Lazy`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:462:9
[INFO] [stderr]     |
[INFO] [stderr] 462 |     use crate::std::lazy::sync::Lazy;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |     use std::collections::BTreeMap;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |     use std::sync::atomic::Ordering;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryStream`
[INFO] [stderr]   --> src/std/io/stream_chan.rs:46:38
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use crate::std::io::{ChanStream, TryStream};
[INFO] [stderr]    |                                      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::ControlFlow`
[INFO] [stderr]   --> src/std/io/stream_chan.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     use std::ops::ControlFlow;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::sleep`
[INFO] [stderr]    --> src/std/vec/mod.rs:406:9
[INFO] [stderr]     |
[INFO] [stderr] 406 |     use crate::sleep;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]    --> src/std/vec/mod.rs:409:9
[INFO] [stderr]     |
[INFO] [stderr] 409 |     use std::ops::Deref;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::atomic::Ordering`
[INFO] [stderr]    --> src/std/vec/mod.rs:410:9
[INFO] [stderr]     |
[INFO] [stderr] 410 |     use std::sync::atomic::Ordering;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/io/sys/unix/co_io.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/queue/mpsc_list.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/queue/mpsc_list_v1.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/sync/condvar.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/sync/mutex.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/sync/rwlock.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/sync/semphore.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]    --> src/std/sync/sync_flag.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     #![feature(test)]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/std/blocking/mod.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             panic!("e");
[INFO] [stderr]    |             ----------- any code following this expression is unreachable
[INFO] [stderr] 74 |             return 1;
[INFO] [stderr]    |             ^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/condvar.rs:346:13
[INFO] [stderr]     |
[INFO] [stderr] 346 |             unsafe { vec[i].coroutine().cancel() };
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/mutex.rs:523:9
[INFO] [stderr]     |
[INFO] [stderr] 523 |         unsafe { h1.coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/mutex.rs:564:9
[INFO] [stderr]     |
[INFO] [stderr] 564 |         unsafe { h1.coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/std/sync/once.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |         for i in 0..n {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/std/sync/once.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |         for i in 0..n {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/rwlock.rs:634:9
[INFO] [stderr]     |
[INFO] [stderr] 634 |         unsafe { vec[cancel_id - 1].coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/rwlock.rs:684:9
[INFO] [stderr]     |
[INFO] [stderr] 684 |         unsafe { h.coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/semphore.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         unsafe { h1.coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/std/sync/sync_flag.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         unsafe { h1.coroutine().cancel() };
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:513:21
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let insert = m2.insert(1, 2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:508:21
[INFO] [stderr]     |
[INFO] [stderr] 508 |                 let insert = m1.insert(1, 2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:542:25
[INFO] [stderr]     |
[INFO] [stderr] 542 |                     let insert = m2.insert(i, i);
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:535:25
[INFO] [stderr]     |
[INFO] [stderr] 535 |                     let insert = m1.insert(i, i);
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:556:13
[INFO] [stderr]     |
[INFO] [stderr] 556 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:576:13
[INFO] [stderr]     |
[INFO] [stderr] 576 |         let insert = m.insert(1, a);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:613:13
[INFO] [stderr]     |
[INFO] [stderr] 613 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:623:13
[INFO] [stderr]     |
[INFO] [stderr] 623 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:641:21
[INFO] [stderr]     |
[INFO] [stderr] 641 |                 let insert = m.insert(i, i);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:679:21
[INFO] [stderr]     |
[INFO] [stderr] 679 |                 let g = m2.remove(&i);
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:670:21
[INFO] [stderr]     |
[INFO] [stderr] 670 |                 let insert = m.insert(i, i);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `i` is never read
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:665:13
[INFO] [stderr]     |
[INFO] [stderr] 665 |         for mut i in 0..10000 {
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:492:21
[INFO] [stderr]     |
[INFO] [stderr] 492 |                 let insert = m2.insert(1, 2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:487:21
[INFO] [stderr]     |
[INFO] [stderr] 487 |                 let insert = m1.insert(1, 2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:502:13
[INFO] [stderr]     |
[INFO] [stderr] 502 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:510:13
[INFO] [stderr]     |
[INFO] [stderr] 510 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:520:13
[INFO] [stderr]     |
[INFO] [stderr] 520 |         let insert = m.insert(1, 2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/std/io/stream_chan.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut c = ChanStream { recv: r, send: s };
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/std/io/stream_chan.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut c = ChanStream { recv: r, send: s };
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/std/time/tick.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut t = Arc::new(Ticker::new(Duration::from_secs(1)));
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/std/time/time.rs:566:13
[INFO] [stderr]     |
[INFO] [stderr] 566 |         let mut now = Time::now();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:463:21
[INFO] [stderr]     |
[INFO] [stderr] 463 |                 let insert = m2.push(2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:458:21
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 let insert = m1.push(2);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:489:25
[INFO] [stderr]     |
[INFO] [stderr] 489 |                     let insert = m2.push(i);
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:482:25
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let insert = m1.push(i);
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:500:13
[INFO] [stderr]     |
[INFO] [stderr] 500 |         let insert = m.push(2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:520:13
[INFO] [stderr]     |
[INFO] [stderr] 520 |         let insert = m.push(a);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/std/vec/mod.rs:534:13
[INFO] [stderr]     |
[INFO] [stderr] 534 |         for i in 0..1000000 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/std/vec/mod.rs:543:13
[INFO] [stderr]     |
[INFO] [stderr] 543 |         for i in 0..1000000 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:557:13
[INFO] [stderr]     |
[INFO] [stderr] 557 |         let insert = m.push(2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insert`
[INFO] [stderr]    --> src/std/vec/mod.rs:566:13
[INFO] [stderr]     |
[INFO] [stderr] 566 |         let insert = m.push(2);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/queue/array_queue.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         q.push(1);
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 481 |         let _ = q.push(1);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/queue/array_queue.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         q.push(2);
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 482 |         let _ = q.push(2);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/queue/array_queue.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         q.push(3);
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let _ = q.push(3);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:211:9
[INFO] [stderr]     |
[INFO] [stderr] 211 |         c.notify_one();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let _ = c.notify_one();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |         c.notify_all();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let _ = c.notify_all();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |             c2.notify_one();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 225 |             let _ = c2.notify_one();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         cond.notify_all();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let _ = cond.notify_all();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:280:13
[INFO] [stderr]     |
[INFO] [stderr] 280 |             c2.notify_one();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 280 |             let _ = c2.notify_one();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:300:13
[INFO] [stderr]     |
[INFO] [stderr] 300 |             c2.notify_one();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 300 |             let _ = c2.notify_one();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/condvar.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         cond.notify_all();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 357 |         let _ = cond.notify_all();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/mutex.rs:393:13
[INFO] [stderr]     |
[INFO] [stderr] 393 |             cvar.notify_one();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 393 |             let _ = cvar.notify_one();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/mutex.rs:415:13
[INFO] [stderr]     |
[INFO] [stderr] 415 |             cvar.notify_one();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 415 |             let _ = cvar.notify_one();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/std/sync/once.rs:83:20
[INFO] [stderr]    |
[INFO] [stderr] 83 |             panic!(format!("once failed inside run: {} is not 1", o.value()));
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 83 -             panic!(format!("once failed inside run: {} is not 1", o.value()));
[INFO] [stderr] 83 +             panic!("once failed inside run: {} is not 1", o.value());
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/std/sync/once.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         s.send(true);
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let _ = s.send(true);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/once.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             r.recv();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let _ = r.recv();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/std/sync/once.rs:111:20
[INFO] [stderr]     |
[INFO] [stderr] 111 |             panic!(format!("once failed outside run: {} is not 1", one.value()));
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 111 -             panic!(format!("once failed outside run: {} is not 1", one.value()));
[INFO] [stderr] 111 +             panic!("once failed outside run: {} is not 1", one.value());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/once.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 | /         catch_unwind(|| {
[INFO] [stderr] 119 | |             once.r#do(|| {
[INFO] [stderr] 120 | |                 panic!("failed");
[INFO] [stderr] 121 | |             });
[INFO] [stderr] 122 | |         });
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let _ = catch_unwind(|| {
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/rwlock.rs:641:13
[INFO] [stderr]     |
[INFO] [stderr] 641 |             cond.notify_all();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 641 |             let _ = cond.notify_all();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:643:33
[INFO] [stderr]     |
[INFO] [stderr] 643 |                 assert_eq!(i, *g.deref());
[INFO] [stderr]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/std/sync/sync_hash_map.rs:672:33
[INFO] [stderr]     |
[INFO] [stderr] 672 |                 assert_eq!(i, *g.deref());
[INFO] [stderr]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/std/sync/sync_btree_map.rs:504:25
[INFO] [stderr]     |
[INFO] [stderr] 504 |         assert_eq!(2, *g.deref());
[INFO] [stderr]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/channel.rs:456:13
[INFO] [stderr]     |
[INFO] [stderr] 456 |             tx.send(1);
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 456 |             let _ = tx.send(1);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/sync/channel.rs:459:13
[INFO] [stderr]     |
[INFO] [stderr] 459 |             tx.send(2);
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 459 |             let _ = tx.send(2);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/std/io/stream_chan.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         s.send(Some(Ok(1)));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let _ = s.send(Some(Ok(1)));
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/std/io/stream_chan.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         s.send(None);
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let _ = s.send(None);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/std/io/stream_chan.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |         s.send(Some(Ok(1)));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let _ = s.send(Some(Ok(1)));
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/std/io/stream_chan.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         s.send(None);
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let _ = s.send(None);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/std/time/tick.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         t.stop();
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let _ = t.stop();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mco` (lib) generated 39 warnings (run `cargo fix --lib -p mco` to apply 13 suggestions)
[INFO] [stderr] warning: `mco` (lib test) generated 128 warnings (39 duplicates) (run `cargo fix --lib -p mco --tests` to apply 49 suggestions)
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/channel.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             s1.send(1);
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let _ = s1.send(1);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/channel.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             s1.send(1);
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let _ = s1.send(1);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> tests/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     unsafe { j.coroutine().cancel() };
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> tests/lib.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     unsafe { j.coroutine().cancel() };
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]    --> tests/lib.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |             a = 5;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mco` (test "channel") generated 2 warnings
[INFO] [stderr] warning: `mco` (test "lib") generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mco-5fc9c37be8160ee3)
[INFO] [stdout] 
[INFO] [stdout] running 169 tests
[INFO] [stdout] test os::unix::net::test::abstract_namespace_not_allowed ... ok
[INFO] [stdout] test os::unix::net::test::long_path ... ok
[INFO] [stdout] test std::blocking::test::test_spawn_blocking ... ok
[INFO] [stdout] test std::blocking::test::test_spawn_panic ... ok
[INFO] [stdout] test std::lazy::imp::tests::smoke_once ... ok
[INFO] [stdout] test std::io::stream_chan::test::test_map ... ok
[INFO] [stdout] test std::io::stream_chan::test::test_foreach ... ok
[INFO] [stdout] test std::lazy::imp::tests::test_size ... ok
[INFO] [stdout] test std::lazy::imp::tests::poison_bad ... ok
[INFO] [stdout] test std::queue::array_queue::test::test_insert ... ok
[INFO] [stdout] test std::queue::mpsc_list::tests::test_queue ... ok
[INFO] [stdout] test std::queue::mpsc_list_v1::tests::test ... ok
[INFO] [stdout] test std::queue::mpsc_list::tests::test ... ok
[INFO] [stdout] test std::queue::mpsc_list_v1::tests::test_queue ... ok
[INFO] [stdout] test std::sync::channel::tests::chan_gone_concurrent ... ok
[INFO] [stdout] test std::sync::channel::tests::drop_full ... ok
[INFO] [stdout] test std::sync::channel::tests::drop_full_shared ... ok
[INFO] [stdout] test os::unix::net::test::pair ... ok
[INFO] [stdout] test std::lazy::imp::tests::wait_for_force_to_finish ... ok
[INFO] [stdout] test os::unix::net::test::datagram_pair ... ok
[INFO] [stdout] test os::unix::net::test::test_connect_unix_datagram ... ok
[INFO] [stdout] test std::lazy::imp::tests::stampede_once ... ok
[INFO] [stdout] test os::unix::net::test::test_unnamed_unix_datagram ... ok
[INFO] [stdout] test os::unix::net::test::basic ... ok
[INFO] [stdout] test os::unix::net::test::timeouts ... ok
[INFO] [stdout] test os::unix::net::test::test_unix_datagram ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_thread_close_stress ... ok
[INFO] [stdout] test os::unix::net::test::try_clone ... ok
[INFO] [stdout] test os::unix::net::test::test_unix_datagram_recv ... ok
[INFO] [stdout] test os::unix::net::test::iter ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_task_recv_then_close ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_task_recv_then_send ... ok
[INFO] [stdout] test std::sync::channel::tests::no_runtime ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_close_chan_first ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_close_port_first ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_thread_recv_close_stress ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_thread_send_recv_stress ... ok
[INFO] [stdout] test std::sync::channel::tests::destroy_upgraded_shared_port_when_sender_still_active ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_peek_close ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_peek_data ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_peek_open ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_multi_thread_send_close_stress ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_recv_chan_close ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_send_port_close ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_send_then_recv ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_try_recv_closed ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_recv_timeout ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_try_recv_open ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_try_send_closed ... ok
[INFO] [stdout] test std::sync::channel::tests::oneshot_single_thread_try_send_open ... ok
[INFO] [stdout] test std::sync::channel::tests::port_gone_concurrent ... ok
[INFO] [stdout] test std::sync::channel::tests::port_gone_concurrent1 ... ok
[INFO] [stdout] test std::sync::channel::tests::port_gone_concurrent_shared ... ok
[INFO] [stdout] test std::sync::channel::tests::recv_from_outside_runtime ... ok
[INFO] [stdout] test std::sync::channel::tests::recv_timeout_upgrade ... ok
[INFO] [stdout] test std::sync::channel::tests::send_from_outside_runtime ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_chan_gone ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_port_gone ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_shared ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke ... ok
[INFO] [stdout] test std::sync::channel::tests::recv_a_lot ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_shared_port_gone2 ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_chan_gone_shared ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_coroutine ... ok
[INFO] [stdout] test std::sync::channel::tests::shared_recv_timeout ... ok
[INFO] [stdout] test std::sync::channel::tests::stream_send_recv_stress ... ok
[INFO] [stdout] test std::sync::channel::tests::smoke_threads ... ok
[INFO] [stdout] test std::sync::channel::tests::test_recv_into_iter_borrowed ... ok
[INFO] [stdout] test std::sync::channel::tests::test_recv_into_iter_owned ... ok
[INFO] [stdout] test std::sync::channel::tests::test_recv_iter_break ... ok
[INFO] [stdout] test std::sync::channel::tests::stress ... ok
[INFO] [stdout] test std::sync::channel::tests::test_nested_recv_iter ... ok
[INFO] [stdout] test std::sync::channel::tests::try_recv_states ... ok
[INFO] [stdout] test std::sync::condvar::tests::smoke ... ok
[INFO] [stdout] test std::sync::mutex::tests::smoke ... ok
[INFO] [stdout] test std::sync::channel::tests::stress_mutli_recv ... ok
[INFO] [stdout] test std::sync::condvar::tests::notify_one ... ok
[INFO] [stdout] test std::sync::condvar::tests::two_mutexes - should panic ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_get_mut ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_arc_condvar_poison ... ok
[INFO] [stdout] test std::sync::condvar::tests::wait_timeout ... ok
[INFO] [stdout] test std::sync::channel::tests::test_recv_try_iter ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_into_inner_drop ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_arc_condvar ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_get_mut_poison ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_into_inner ... ok
[INFO] [stdout] test std::sync::condvar::tests::notify_all ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_arc_access_in_unwind ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_arc_nested ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_arc_poison ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_into_inner_poison ... ok
[INFO] [stdout] test std::sync::once::test::test_once_panic ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_unsized ... ok
[INFO] [stdout] test std::sync::mutex::tests::try_lock ... ok
[INFO] [stdout] test std::sync::rwlock::tests::smoke ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_get_mut ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_into_inner ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_into_inner_drop ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_get_mut_poison ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_into_inner_poison ... ok
[INFO] [stdout] test std::sync::channel::tests::shared_chan_stress ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc_no_poison_rr ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc_poison_wr ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc_access_in_unwind ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc_poison_ww ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rwlock_try_write ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rwlock_unsized ... ok
[INFO] [stdout] test std::sync::semphore::tests::sanity_1 ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rw_arc_no_poison_rw ... ok
[INFO] [stdout] test std::sync::mutex::tests::lots_and_lots ... ok
[INFO] [stdout] test std::sync::once::test::test_once ... ok
[INFO] [stdout] test std::sync::condvar::tests::test_condvar_canceled ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rwlock_read_canceled ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_empty ... ok
[INFO] [stdout] test std::sync::rwlock::tests::test_rwlock_write_canceled ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_get ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_insert ... ok
[INFO] [stdout] test std::sync::semphore::tests::sanity_2 ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_insert2 ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_iter ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_iter_mut ... ok
[INFO] [stdout] test std::sync::sync_flag::tests::sanity_test ... ok
[INFO] [stdout] test std::sync::channel::tests::stress_shared ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_debug ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_empty ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_get ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_insert ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_insert2 ... ok
[INFO] [stdout] test std::sync::semphore::tests::test_semphore_thread_timeout ... ok
[INFO] [stdout] test std::sync::semphore::tests::test_semphore_co_timeout ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_iter ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_iter_mut ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_remove ... ok
[INFO] [stdout] test std::sync::sync_flag::tests::test_syncflag_co_timeout ... ok
[INFO] [stdout] test std::sync::sync_flag::tests::test_syncflag_thread_timeout ... ok
[INFO] [stdout] test std::sync::channel::tests::stress_recv_timeout_two_threads ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_canceled_by_other_wait ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_insert4 ... ok
[INFO] [stdout] test std::time::time::test::test_mon ... ok
[INFO] [stdout] test std::time::time::test::test_parse ... ok
[INFO] [stdout] test std::sync::mutex::tests::test_mutex_canceled ... ok
[INFO] [stdout] test std::vec::test::test_debug ... ok
[INFO] [stdout] test std::vec::test::test_empty ... ok
[INFO] [stdout] test std::vec::test::test_get ... ok
[INFO] [stdout] test std::sync::semphore::tests::test_semphore_canceled ... ok
[INFO] [stdout] test std::sync::sync_flag::tests::test_syncflag_canceled ... ok
[INFO] [stdout] test std::vec::test::test_iter ... ok
[INFO] [stdout] test std::vec::test::test_iter_mut ... ok
[INFO] [stdout] test std::vec::test::test_push ... ok
[INFO] [stdout] test std::vec::test::test_push2 ... ok
[INFO] [stdout] test std::vec::test::test_remove ... ok
[INFO] [stdout] test std::vec::test::test_insert4 ... ok
[INFO] [stdout] test os::unix::net::test::test_read_with_timeout ... ok
[INFO] [stdout] test os::unix::net::test::test_read_timeout ... ok
[INFO] [stdout] test std::sync::channel::tests::stress_recv_timeout_shared ... ok
[INFO] [stdout] test std::time::time::test::test_eq ... ok
[INFO] [stdout] test std::sync::channel::tests::wait_test ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_smoke2 ... ok
[INFO] [stdout] test timeout_list::tests::test_timeout_list ... ok
[INFO] [stdout] test std::time::time::test::test_smoke ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_smoke3 ... ok
[INFO] [stdout] test std::time::tick::test::test_tick ... ok
[INFO] [stdout] test std::sync::sync_btree_map::test::test_insert3 ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_insert3 ... ok
[INFO] [stdout] test std::vec::test::test_insert3 ... ok
[INFO] [stdout] test std::sync::rwlock::tests::frob ... ok
[INFO] [stdout] test std::vec::test::test_remove2 ... ok
[INFO] [stdout] test std::sync::sync_hash_map::test::test_remove2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 169 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 25.94s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/channel.rs (/opt/rustwide/target/debug/deps/channel-373f15689c90fd34)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test channel_recv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cqueue.rs (/opt/rustwide/target/debug/deps/cqueue-986c42a2d974d61d)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test cqueue_oneshot ... ok
[INFO] [stdout] test cqueue_timeout ... ok
[INFO] [stdout] test cqueue_in_coroutine ... ok
[INFO] [stdout] test cqueue_poll ... ok
[INFO] [stdout] test cqueue_panic_in_select - should panic ... ok
[INFO] [stdout] test cqueue_drop ... ok
[INFO] [stdout] test cqueue_panic - should panic ... ok
[INFO] [stdout] test cqueue_loop ... ok
[INFO] [stdout] test cqueue_select ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-4466b1ec7d5eb204)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test co_with_macro ... ok
[INFO] [stdout] test yield_from_gen ... ok
[INFO] [stdout] test panic_coroutine ... ok
[INFO] [stdout] test one_coroutine ... ok
[INFO] [stdout] test test_yield ... ok
[INFO] [stdout] test cancel_io_coroutine ... ok
[INFO] [stdout] test scoped_coroutine ... ok
[INFO] [stdout] test coroutine_result ... ok
[INFO] [stdout] test cancel_coroutine ... ok
[INFO] [stdout] test wait_join ... ok
[INFO] [stdout] test park_timeout ... ok
[INFO] [stdout] test unpark ... ok
[INFO] [stdout] test multi_yield ... ok
[INFO] [stdout] test multi_coroutine ... ok
[INFO] [stdout] test spawn_inside ... ok
[INFO] [stdout] test test_sleep ... ok
[INFO] [stdout] test join_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/local.rs (/opt/rustwide/target/debug/deps/local-6df649d5cdbc1dd1)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test local_in_thread ... ok
[INFO] [stdout] test coroutine_local ... ok
[INFO] [stdout] test coroutine_local_many ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mco
[INFO] [stdout] 
[INFO] [stdout] running 109 tests
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::local_addr (line 752) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::recv (line 832) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::read_timeout (line 996) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::pair (line 681) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::Incoming (line 567) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::peer_addr (line 771) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::connect (line 710) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram (line 609) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::set_write_timeout (line 979) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::send_to (line 871) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::shutdown (line 1061) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::bind (line 639) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::send (line 912) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::unbound (line 659) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::recv_from (line 790) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::take_error (line 1043) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::write_timeout (line 1012) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::try_clone (line 736) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::set_nonblocking (line 472) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::accept (line 398) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::incoming (line 507) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::bind (line 374) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener (line 332) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::connect (line 56) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::local_addr (line 131) - compile ... ok
[INFO] [stdout] test src/coroutine_impl.rs - coroutine_impl::Builder::spawn (line 332) ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::try_clone (line 441) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::pair (line 89) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::local_addr (line 457) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::set_read_timeout (line 956) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream (line 20) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::peer_addr (line 145) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::shutdown (line 265) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::set_read_timeout (line 163) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::read_timeout (line 199) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::set_write_timeout (line 183) - compile ... ok
[INFO] [stdout] test src/macros.rs - macros::coroutine_local (line 205) ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixListener::take_error (line 487) - compile ... ok
[INFO] [stdout] test src/macros.rs - macros::select (line 121) ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::write_timeout (line 215) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::set_nonblocking (line 231) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::take_error (line 245) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixStream::try_clone (line 116) - compile ... ok
[INFO] [stdout] test src/os/unix/net.rs - os::unix::net::UnixDatagram::set_nonblocking (line 1029) ... ok
[INFO] [stdout] test src/coroutine_impl.rs - coroutine_impl::spawn (line 413) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 110) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 208) ... ok
[INFO] [stdout] test src/std/defer/mod.rs - std::defer::defer (line 16) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 125) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 150) ... ok
[INFO] [stdout] test src/coroutine_impl.rs - coroutine_impl::Builder (line 199) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 167) ... ok
[INFO] [stdout] test src/macros.rs - macros::select_token (line 144) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::Lazy<T,F>::force (line 1159) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 66) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::get_mut (line 867) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 33) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::get_or_init (line 960) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::_dummy (line 1204) - compile fail ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::get_or_try_init (line 994) ... ok
[INFO] [stdout] test src/macros.rs - macros::join (line 176) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::try_insert (line 923) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell (line 777) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::into_inner (line 1059) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::_dummy (line 1196) - compile fail ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::take (line 1043) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy (line 84) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::take (line 1027) ... ok
[INFO] [stdout] test src/std/blocking/mod.rs - std::blocking::spawn_blocking (line 7) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::Lazy (line 1080) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell (line 349) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::Lazy (line 641) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::Lazy<T,F>::force (line 716) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::Lazy<T,F>::new (line 678) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::take (line 604) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::get_or_init (line 521) ... ok
[INFO] [stdout] test src/std/blocking/mod.rs - std::blocking::spawn_blocking (line 27) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::sync::OnceCell<T>::set (line 896) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::get_mut (line 443) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::into_inner (line 621) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::get_or_try_init (line 554) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue (line 36) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::new (line 89) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::set (line 461) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::take (line 588) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::len (line 365) ... ok
[INFO] [stdout] test src/std/lazy/mod.rs - std::lazy::unsync::OnceCell<T>::try_insert (line 482) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::pop (line 225) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::is_full (line 341) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue (line 137) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::push (line 146) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::capacity (line 301) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue<T>::push (line 192) ... ok
[INFO] [stdout] test src/std/sync/semphore.rs - std::sync::semphore::Semphore (line 24) ... ok
[INFO] [stdout] test src/std/queue/array_queue.rs - std::queue::array_queue::ArrayQueue<T>::is_empty (line 316) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue<T>::is_empty (line 386) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue<T>::len (line 405) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue<T>::new (line 169) ... ok
[INFO] [stdout] test src/std/queue/seg_queue.rs - std::queue::seg_queue::SegQueue<T>::pop (line 286) ... ok
[INFO] [stdout] test src/std/sync/wait_group.rs - std::sync::wait_group::WaitGroup::wait (line 99) ... ok
[INFO] [stdout] test src/std/sync/channel.rs - std::sync::channel::chan (line 40) ... ok
[INFO] [stdout] test src/std/sync/wait_group.rs - std::sync::wait_group::WaitGroup::new (line 86) ... ok
[INFO] [stdout] test src/std/sync/sync_btree_map.rs - std::sync::sync_btree_map::SyncBtreeMapImpl<K,V>::get (line 195) ... ok
[INFO] [stdout] test src/std/sync/sync_flag.rs - std::sync::sync_flag::SyncFlag (line 26) ... ok
[INFO] [stdout] test src/std/sync/wait_group.rs - std::sync::wait_group::WaitGroup (line 25) ... ok
[INFO] [stdout] test src/std/time/time.rs - std::time::time::Time::format (line 200) ... ok
[INFO] [stdout] test src/std/sync/sync_hash_map.rs - std::sync::sync_hash_map::SyncHashMapImpl<K,V>::get (line 202) ... ok
[INFO] [stdout] test src/std/time/time.rs - std::time::time::Time::parse (line 241) ... ok
[INFO] [stdout] test src/std/time/tick.rs - std::time::tick::Ticker (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 109 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1bbdc3f4a735384cbb7cc6d358ef468e1e02519ea95cae126bd144212ee5907f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbdc3f4a735384cbb7cc6d358ef468e1e02519ea95cae126bd144212ee5907f", kill_on_drop: false }`
[INFO] [stdout] 1bbdc3f4a735384cbb7cc6d358ef468e1e02519ea95cae126bd144212ee5907f
