[INFO] fetching crate strand 0.1.2...
[INFO] testing strand-0.1.2 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate strand 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate strand 0.1.2 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strand 0.1.2
[INFO] finished tweaking crates.io crate strand 0.1.2
[INFO] tweaked toml for crates.io crate strand 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1eb11ad7455be263c12b0d1bb7542af186d22a975fb4d92a3918997f7b8e8a78
[INFO] running `Command { std: "docker" "start" "-a" "1eb11ad7455be263c12b0d1bb7542af186d22a975fb4d92a3918997f7b8e8a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1eb11ad7455be263c12b0d1bb7542af186d22a975fb4d92a3918997f7b8e8a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb11ad7455be263c12b0d1bb7542af186d22a975fb4d92a3918997f7b8e8a78", kill_on_drop: false }`
[INFO] [stdout] 1eb11ad7455be263c12b0d1bb7542af186d22a975fb4d92a3918997f7b8e8a78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8a8c7f856dd56ac7004904ccf423d4965f1490d7b56dd3df67241e7959e07cf
[INFO] running `Command { std: "docker" "start" "-a" "a8a8c7f856dd56ac7004904ccf423d4965f1490d7b56dd3df67241e7959e07cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling strand v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T,S>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>{
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "a8a8c7f856dd56ac7004904ccf423d4965f1490d7b56dd3df67241e7959e07cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a8c7f856dd56ac7004904ccf423d4965f1490d7b56dd3df67241e7959e07cf", kill_on_drop: false }`
[INFO] [stdout] a8a8c7f856dd56ac7004904ccf423d4965f1490d7b56dd3df67241e7959e07cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ff2bab42e1b0bb06fb7a7d627a5fbc4f18cb2018f011bf319f2f54abd3e75a5
[INFO] running `Command { std: "docker" "start" "-a" "2ff2bab42e1b0bb06fb7a7d627a5fbc4f18cb2018f011bf319f2f54abd3e75a5", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling strand v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T,S>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>{
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T,S>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/mutable.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn as_event<T>(self) -> Box<Event<T = T>+Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/immutable.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>{
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "2ff2bab42e1b0bb06fb7a7d627a5fbc4f18cb2018f011bf319f2f54abd3e75a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff2bab42e1b0bb06fb7a7d627a5fbc4f18cb2018f011bf319f2f54abd3e75a5", kill_on_drop: false }`
[INFO] [stdout] 2ff2bab42e1b0bb06fb7a7d627a5fbc4f18cb2018f011bf319f2f54abd3e75a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7ce0d87924bb710373225f9a43bdb00120b6cf63488d9bcdbfdc5ac6a9acd2b
[INFO] running `Command { std: "docker" "start" "-a" "f7ce0d87924bb710373225f9a43bdb00120b6cf63488d9bcdbfdc5ac6a9acd2b", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:16:42
[INFO] [stderr]    |
[INFO] [stderr] 16 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn as_event<T,S>(self) -> Box<Event<T = T>+Send>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:24:42
[INFO] [stderr]    |
[INFO] [stderr] 24 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>;
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn as_event<T>(self) -> Box<Event<T = T>+Send>;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>{
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:16:42
[INFO] [stderr]    |
[INFO] [stderr] 16 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors>;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn as_event<T,S>(self) -> Box<Event<T = T>+Send>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mutable.rs:24:42
[INFO] [stderr]    |
[INFO] [stderr] 24 |   fn evolve<'a>(&'a mut self, event: &'a Event<T = T>) -> Result<(), Errors> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>;
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn as_event<T>(self) -> Box<Event<T = T>+Send>;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>+Send`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/immutable.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |   fn evolve(self, event: &Event<T = T>) -> Result<A, Errors>{
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn Event<T = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/strand-d75f4cc27067bd21)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/immutable.rs (/opt/rustwide/target/debug/deps/immutable-e0c837dc3a2ea475)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mutable.rs (/opt/rustwide/target/debug/deps/mutable-89a4bb4e45b74fcb)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_branch ... ok
[INFO] [stdout] test tests::test_unmet_pre_condition ... ok
[INFO] [stdout] test tests::test_state_changes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests strand
[INFO] [stdout] test tests::test_state_changes ... ok
[INFO] [stdout] test tests::test_branch ... ok
[INFO] [stdout] test tests::test_unmet_pre_condition ... 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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7ce0d87924bb710373225f9a43bdb00120b6cf63488d9bcdbfdc5ac6a9acd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ce0d87924bb710373225f9a43bdb00120b6cf63488d9bcdbfdc5ac6a9acd2b", kill_on_drop: false }`
[INFO] [stdout] f7ce0d87924bb710373225f9a43bdb00120b6cf63488d9bcdbfdc5ac6a9acd2b