[INFO] fetching crate rotor 0.6.3...
[INFO] testing rotor-0.6.3 against beta-2022-08-09 for beta-1.64-2
[INFO] extracting crate rotor 0.6.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rotor 0.6.3 on toolchain beta-2022-08-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-08-09" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rotor 0.6.3
[INFO] finished tweaking crates.io crate rotor 0.6.3
[INFO] tweaked toml for crates.io crate rotor 0.6.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-08-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-08-09" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-08-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57aad01cc8e44afba773b43af7b78639612763d36aa186d3e2c0b8af151db408
[INFO] running `Command { std: "docker" "start" "-a" "57aad01cc8e44afba773b43af7b78639612763d36aa186d3e2c0b8af151db408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57aad01cc8e44afba773b43af7b78639612763d36aa186d3e2c0b8af151db408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57aad01cc8e44afba773b43af7b78639612763d36aa186d3e2c0b8af151db408", kill_on_drop: false }`
[INFO] [stdout] 57aad01cc8e44afba773b43af7b78639612763d36aa186d3e2c0b8af151db408
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-08-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee9adbe577780d3b9baf81805b7bc7f0764a5bb2ea38626bc651b6a297b7534b
[INFO] running `Command { std: "docker" "start" "-a" "ee9adbe577780d3b9baf81805b7bc7f0764a5bb2ea38626bc651b6a297b7534b", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling quick-error v0.2.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling rotor v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `scope`
[INFO] [stdout]  --> src/creator.rs:9:38
[INFO] [stdout]   |
[INFO] [stdout] 9 | use scope::{early_scope, EarlyScope, scope, Scope};
[INFO] [stdout]   |                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/creator.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let eloop = try!(create_loop(&cfg));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `mio_original` is private, and cannot be re-exported (error E0365), consider declaring with `pub`
[INFO] [stdout]   --> src/lib.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub use mio_original as mio;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(pub_use_of_private_extern_crate)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `void_original` is private, and cannot be re-exported (error E0365), consider declaring with `pub`
[INFO] [stdout]   --> src/lib.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub use void_original as void;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     loop_api: &'a mut LoopApi,
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     loop_api: &'a mut LoopApi,
[INFO] [stdout] 37 +     loop_api: &'a mut dyn LoopApi,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |     loop_api: &'a mut LoopApi,
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     loop_api: &'a mut LoopApi,
[INFO] [stdout] 50 +     loop_api: &'a mut dyn LoopApi,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Error(Box<Error>),
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Error(Box<Error>),
[INFO] [stdout] 14 +     Error(Box<dyn Error>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     UserError(Box<Error>),
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 -     UserError(Box<Error>),
[INFO] [stdout] 15 +     UserError(Box<dyn Error>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 59 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:61:35
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 61 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout] 64 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:100:37
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 100 -     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 100 +     pub fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:106:39
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 -     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 106 +     pub fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:113:39
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 -     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 113 +     pub fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:167:33
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 167 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 167 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:173:35
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 173 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 173 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:180:35
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 180 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 180 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:231:37
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 231 -     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 231 +     pub fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:237:39
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 237 -     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 237 +     pub fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:244:39
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 244 -     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 244 +     pub fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:295:33
[INFO] [stdout]     |
[INFO] [stdout] 295 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 295 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 295 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:301:35
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 301 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:308:35
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 308 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 308 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 12 +     fn register(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:14:35
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 14 +     fn reregister(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout] 16 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 -     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 25 +     fn register(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 -     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 31 +     fn reregister(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 37 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:174:30
[INFO] [stdout]     |
[INFO] [stdout] 174 |     -> (Result<M, Option<Box<Error>>>, Option<N>, Option<Time>)
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 174 -     -> (Result<M, Option<Box<Error>>>, Option<N>, Option<Time>)
[INFO] [stdout] 174 +     -> (Result<M, Option<Box<dyn Error>>>, Option<N>, Option<Time>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn error(e: Box<Error>) -> Response<M, N> {
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pub fn error(e: Box<Error>) -> Response<M, N> {
[INFO] [stdout] 28 +     pub fn error(e: Box<dyn Error>) -> Response<M, N> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:109:36
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 -     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 109 +     pub fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:164:38
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn expect_error(self) -> Box<Error> {
[INFO] [stdout]     |                                      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 164 -     pub fn expect_error(self) -> Box<Error> {
[INFO] [stdout] 164 +     pub fn expect_error(self) -> Box<dyn Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl<S> From<Box<Error>> for SpawnError<S> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 - impl<S> From<Box<Error>> for SpawnError<S> {
[INFO] [stdout] 64 + impl<S> From<Box<dyn Error>> for SpawnError<S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:40:36
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 40 +     pub fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 59 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn from(x: Box<Error>) -> SpawnError<S> {
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 -     fn from(x: Box<Error>) -> SpawnError<S> {
[INFO] [stdout] 65 +     fn from(x: Box<dyn Error>) -> SpawnError<S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |             &UserError(ref err) => err.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "ee9adbe577780d3b9baf81805b7bc7f0764a5bb2ea38626bc651b6a297b7534b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9adbe577780d3b9baf81805b7bc7f0764a5bb2ea38626bc651b6a297b7534b", kill_on_drop: false }`
[INFO] [stdout] ee9adbe577780d3b9baf81805b7bc7f0764a5bb2ea38626bc651b6a297b7534b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-08-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d04b1d3d513d78b3982023a1dd1f3989e93d403cc7e205e9b484e8be6891bfdd
[INFO] running `Command { std: "docker" "start" "-a" "d04b1d3d513d78b3982023a1dd1f3989e93d403cc7e205e9b484e8be6891bfdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stdout] warning: unused import: `scope`
[INFO] [stdout]  --> src/creator.rs:9:38
[INFO] [stdout]   |
[INFO] [stdout] 9 | use scope::{early_scope, EarlyScope, scope, Scope};
[INFO] [stdout]   |                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/creator.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let eloop = try!(create_loop(&cfg));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `mio_original` is private, and cannot be re-exported (error E0365), consider declaring with `pub`
[INFO] [stdout]   --> src/lib.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub use mio_original as mio;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(pub_use_of_private_extern_crate)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `void_original` is private, and cannot be re-exported (error E0365), consider declaring with `pub`
[INFO] [stdout]   --> src/lib.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub use void_original as void;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/notify.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / quick_error! {
[INFO] [stdout] 6  | |     /// Error when waking up a connection
[INFO] [stdout] 7  | |     ///
[INFO] [stdout] 8  | |     /// In most cases it's okay to panic on this error
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     loop_api: &'a mut LoopApi,
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     loop_api: &'a mut LoopApi,
[INFO] [stdout] 37 +     loop_api: &'a mut dyn LoopApi,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |     loop_api: &'a mut LoopApi,
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     loop_api: &'a mut LoopApi,
[INFO] [stdout] 50 +     loop_api: &'a mut dyn LoopApi,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Error(Box<Error>),
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Error(Box<Error>),
[INFO] [stdout] 14 +     Error(Box<dyn Error>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     UserError(Box<Error>),
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 -     UserError(Box<Error>),
[INFO] [stdout] 15 +     UserError(Box<dyn Error>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 59 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:61:35
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 61 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout] 64 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:100:37
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 100 -     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 100 +     pub fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:106:39
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 -     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 106 +     pub fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:113:39
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 -     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 113 +     pub fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:167:33
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 167 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 167 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:173:35
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 173 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 173 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:180:35
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 180 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 180 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:231:37
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 231 -     pub fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 231 +     pub fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:237:39
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 237 -     pub fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 237 +     pub fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:244:39
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 244 -     pub fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 244 +     pub fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:295:33
[INFO] [stdout]     |
[INFO] [stdout] 295 |     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 295 -     fn register(&mut self, io: &Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout] 295 +     fn register(&mut self, io: &dyn Evented, interest: EventSet, opt: PollOpt)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:301:35
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn reregister(&mut self, io: &Evented,
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 -     fn reregister(&mut self, io: &Evented,
[INFO] [stdout] 301 +     fn reregister(&mut self, io: &dyn Evented,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scope.rs:308:35
[INFO] [stdout]     |
[INFO] [stdout] 308 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 308 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 308 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 12 +     fn register(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:14:35
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 14 +     fn reregister(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>;
[INFO] [stdout] 16 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 -     fn register(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 25 +     fn register(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 -     fn reregister(&mut self, io: &Evented, token: Token,
[INFO] [stdout] 31 +     fn reregister(&mut self, io: &dyn Evented, token: Token,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/loop_api.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn deregister(&mut self, io: &Evented) -> io::Result<()>
[INFO] [stdout] 37 +     fn deregister(&mut self, io: &dyn Evented) -> io::Result<()>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:174:30
[INFO] [stdout]     |
[INFO] [stdout] 174 |     -> (Result<M, Option<Box<Error>>>, Option<N>, Option<Time>)
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 174 -     -> (Result<M, Option<Box<Error>>>, Option<N>, Option<Time>)
[INFO] [stdout] 174 +     -> (Result<M, Option<Box<dyn Error>>>, Option<N>, Option<Time>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn error(e: Box<Error>) -> Response<M, N> {
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pub fn error(e: Box<Error>) -> Response<M, N> {
[INFO] [stdout] 28 +     pub fn error(e: Box<dyn Error>) -> Response<M, N> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:109:36
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 -     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 109 +     pub fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:164:38
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn expect_error(self) -> Box<Error> {
[INFO] [stdout]     |                                      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 164 -     pub fn expect_error(self) -> Box<Error> {
[INFO] [stdout] 164 +     pub fn expect_error(self) -> Box<dyn Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl<S> From<Box<Error>> for SpawnError<S> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 - impl<S> From<Box<Error>> for SpawnError<S> {
[INFO] [stdout] 64 + impl<S> From<Box<dyn Error>> for SpawnError<S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:40:36
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     pub fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 40 +     pub fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 59 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn from(x: Box<Error>) -> SpawnError<S> {
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 -     fn from(x: Box<Error>) -> SpawnError<S> {
[INFO] [stdout] 65 +     fn from(x: Box<dyn Error>) -> SpawnError<S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:37:40
[INFO] [stdout]    |
[INFO] [stdout] 37 |             &UserError(ref err) => err.description(),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nix v0.4.3
[INFO] [stdout] error: internal compiler error: no warnings or errors encountered even though `delayed_good_path_bugs` issued
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: internal compiler error: trimmed_def_paths constructed
[INFO] [stdout]   |
[INFO] [stdout]   = note: delayed at    0: <rustc_errors::Handler>::delay_good_path_bug::<&str>
[INFO] [stdout]              1: rustc_middle::ty::print::pretty::trimmed_def_paths
[INFO] [stdout]              2: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::ArenaCache<(), std::collections::hash::map::HashMap<rustc_span::def_id::DefId, rustc_span::symbol::Symbol, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>>>
[INFO] [stdout]              3: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::trimmed_def_paths, rustc_query_impl::plumbing::QueryCtxt>
[INFO] [stdout]              4: <rustc_middle::ty::print::pretty::FmtPrinter as rustc_middle::ty::print::Printer>::print_def_path
[INFO] [stdout]              5: <rustc_middle::ty::print::pretty::FmtPrinter as rustc_middle::ty::print::Printer>::print_def_path
[INFO] [stdout]              6: <rustc_middle::ty::print::pretty::FmtPrinter as rustc_middle::ty::print::pretty::PrettyPrinter>::pretty_print_type
[INFO] [stdout]              7: <rustc_middle::ty::Ty as core::fmt::Display>::fmt
[INFO] [stdout]              8: <rustc_privacy::DefIdVisitorSkeleton<rustc_privacy::SearchInterfaceForPrivateItemsVisitor> as rustc_middle::ty::visit::TypeVisitor>::visit_ty
[INFO] [stdout]              9: <rustc_privacy::DefIdVisitorSkeleton<rustc_privacy::SearchInterfaceForPrivateItemsVisitor> as rustc_middle::ty::visit::TypeVisitor>::visit_ty
[INFO] [stdout]             10: <rustc_middle::ty::sty::Binder<&rustc_middle::ty::list::List<rustc_middle::ty::Ty>> as rustc_middle::ty::visit::TypeVisitable>::visit_with::<rustc_privacy::DefIdVisitorSkeleton<rustc_privacy::SearchInterfaceForPrivateItemsVisitor>>
[INFO] [stdout]             11: <rustc_privacy::DefIdVisitorSkeleton<rustc_privacy::SearchInterfaceForPrivateItemsVisitor> as rustc_middle::ty::visit::TypeVisitor>::visit_ty
[INFO] [stdout]             12: <rustc_privacy::SearchInterfaceForPrivateItemsVisitor>::ty
[INFO] [stdout]             13: rustc_privacy::check_private_in_public
[INFO] [stdout]             14: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), ()>>
[INFO] [stdout]             15: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::check_private_in_public, rustc_query_impl::plumbing::QueryCtxt>
[INFO] [stdout]             16: <core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::passes::analysis::{closure#5}::{closure#1}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]             17: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#5}>
[INFO] [stdout]             18: rustc_interface::passes::analysis
[INFO] [stdout]             19: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorGuaranteed>>>
[INFO] [stdout]             20: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
[INFO] [stdout]             21: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorGuaranteed>>
[INFO] [stdout]             22: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
[INFO] [stdout]             23: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>
[INFO] [stdout]             24: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
[INFO] [stdout]             25: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
[INFO] [stdout]             26: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]             27: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]                        at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/alloc/src/boxed.rs:1935:9
[INFO] [stdout]             28: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]                        at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/alloc/src/boxed.rs:1935:9
[INFO] [stdout]             29: std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]                        at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]             30: start_thread
[INFO] [stdout]             31: clone
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at 'Box<dyn Any>', compiler/rustc_errors/src/lib.rs:1426:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f881df8d9f0 - std::backtrace_rs::backtrace::libunwind::trace::hc2aafb361b930ef6
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    1:     0x7f881df8d9f0 - std::backtrace_rs::backtrace::trace_unsynchronized::h804481ad4855a013
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f881df8d9f0 - std::sys_common::backtrace::_print_fmt::hde719312690c42c7
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]    3:     0x7f881df8d9f0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3ac798ae3916ddb8
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]    4:     0x7f881dfe93bc - core::fmt::write::h56d0a26c056ebf7d
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/core/src/fmt/mod.rs:1198:17
[INFO] [stderr]    5:     0x7f881df7ec35 - std::io::Write::write_fmt::hfc329b729ef3a4a4
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/io/mod.rs:1672:15
[INFO] [stderr]    6:     0x7f881df906d1 - std::sys_common::backtrace::_print::h157d3034d56c5f2b
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]    7:     0x7f881df906d1 - std::sys_common::backtrace::print::h8711cdaccf25c72b
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]    8:     0x7f881df906d1 - std::panicking::default_hook::{{closure}}::h5a65e9070c5bad88
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/panicking.rs:295:22
[INFO] [stderr]    9:     0x7f881df9039e - std::panicking::default_hook::h02eec242e22c1c0a
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/panicking.rs:314:9
[INFO] [stderr]   10:     0x7f8820804ab4 - rustc_driver[acf69d503f2fbc0f]::DEFAULT_HOOK::{closure#0}::{closure#0}
[INFO] [stderr]   11:     0x7f881df90f06 - std::panicking::rust_panic_with_hook::hd120b75e7be84603
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/panicking.rs:702:17
[INFO] [stderr]   12:     0x7f88218cf2e1 - std[e93aab33ab818310]::panicking::begin_panic::<rustc_errors[418a143e0b6d828f]::ExplicitBug>::{closure#0}
[INFO] [stderr]   13:     0x7f88218cf0c6 - std[e93aab33ab818310]::sys_common::backtrace::__rust_end_short_backtrace::<std[e93aab33ab818310]::panicking::begin_panic<rustc_errors[418a143e0b6d828f]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]   14:     0x7f88218c9b86 - std[e93aab33ab818310]::panicking::begin_panic::<rustc_errors[418a143e0b6d828f]::ExplicitBug>
[INFO] [stderr]   15:     0x7f88218cc256 - std[e93aab33ab818310]::panic::panic_any::<rustc_errors[418a143e0b6d828f]::ExplicitBug>
[INFO] [stderr]   16:     0x7f88202df133 - <rustc_errors[418a143e0b6d828f]::HandlerInner as core[4b7224d7e913b755]::ops::drop::Drop>::drop
[INFO] [stderr]   17:     0x7f881ffcd498 - core[4b7224d7e913b755]::ptr::drop_in_place::<rustc_session[290e834ad62eeaf7]::parse::ParseSess>
[INFO] [stderr]   18:     0x7f881ffc3733 - <alloc[ae706127652fd80d]::rc::Rc<rustc_session[290e834ad62eeaf7]::session::Session> as core[4b7224d7e913b755]::ops::drop::Drop>::drop
[INFO] [stderr]   19:     0x7f881ffc26fd - core[4b7224d7e913b755]::ptr::drop_in_place::<rustc_interface[50a00022d591bc14]::interface::Compiler>
[INFO] [stderr]   20:     0x7f881ffc2119 - rustc_span[4ee036bbec706f06]::with_source_map::<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_interface[50a00022d591bc14]::interface::create_compiler_and_run<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_driver[acf69d503f2fbc0f]::run_compiler::{closure#1}>::{closure#1}>
[INFO] [stderr]   21:     0x7f881ffc1930 - rustc_interface[50a00022d591bc14]::interface::create_compiler_and_run::<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_driver[acf69d503f2fbc0f]::run_compiler::{closure#1}>
[INFO] [stderr]   22:     0x7f881ffbfca1 - <scoped_tls[b32c5badeee3a461]::ScopedKey<rustc_span[4ee036bbec706f06]::SessionGlobals>>::set::<rustc_interface[50a00022d591bc14]::interface::run_compiler<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_driver[acf69d503f2fbc0f]::run_compiler::{closure#1}>::{closure#0}, core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>>
[INFO] [stderr]   23:     0x7f881ffbf98f - std[e93aab33ab818310]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[50a00022d591bc14]::util::run_in_thread_pool_with_globals<rustc_interface[50a00022d591bc14]::interface::run_compiler<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_driver[acf69d503f2fbc0f]::run_compiler::{closure#1}>::{closure#0}, core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>>::{closure#0}, core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>>
[INFO] [stderr]   24:     0x7f8820627fb9 - <<std[e93aab33ab818310]::thread::Builder>::spawn_unchecked_<rustc_interface[50a00022d591bc14]::util::run_in_thread_pool_with_globals<rustc_interface[50a00022d591bc14]::interface::run_compiler<core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>, rustc_driver[acf69d503f2fbc0f]::run_compiler::{closure#1}>::{closure#0}, core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>>::{closure#0}, core[4b7224d7e913b755]::result::Result<(), rustc_errors[418a143e0b6d828f]::ErrorGuaranteed>>::{closure#1} as core[4b7224d7e913b755]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   25:     0x7f881df9aed3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hafebb5a654285d1f
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/alloc/src/boxed.rs:1935:9
[INFO] [stderr]   26:     0x7f881df9aed3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd7f46a8cec019e0f
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/alloc/src/boxed.rs:1935:9
[INFO] [stderr]   27:     0x7f881df9aed3 - std::sys::unix::thread::Thread::new::thread_start::hcd40f54db19fb2e5
[INFO] [stderr]                                at /rustc/56714e5332f5f21c39d710cc4a6dd279132dedd6/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stderr]   28:     0x7f881de49609 - start_thread
[INFO] [stderr]   29:     0x7f881dd6c133 - clone
[INFO] [stderr]   30:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug.
[INFO] [stderr] 
[INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.64.0-beta.1 (56714e533 2022-08-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `nix`
[INFO] running `Command { std: "docker" "inspect" "d04b1d3d513d78b3982023a1dd1f3989e93d403cc7e205e9b484e8be6891bfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04b1d3d513d78b3982023a1dd1f3989e93d403cc7e205e9b484e8be6891bfdd", kill_on_drop: false }`
[INFO] [stdout] d04b1d3d513d78b3982023a1dd1f3989e93d403cc7e205e9b484e8be6891bfdd