[INFO] fetching crate hassium-core 0.1.3...
[INFO] building hassium-core-0.1.3 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate hassium-core 0.1.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hassium-core 0.1.3 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hassium-core 0.1.3
[INFO] finished tweaking crates.io crate hassium-core 0.1.3
[INFO] tweaked toml for crates.io crate hassium-core 0.1.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faa938518c4bb6d617ef0c45ceed9de6ec157b38438e4b9860a6a8383760fadd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "faa938518c4bb6d617ef0c45ceed9de6ec157b38438e4b9860a6a8383760fadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faa938518c4bb6d617ef0c45ceed9de6ec157b38438e4b9860a6a8383760fadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faa938518c4bb6d617ef0c45ceed9de6ec157b38438e4b9860a6a8383760fadd", kill_on_drop: false }`
[INFO] [stdout] faa938518c4bb6d617ef0c45ceed9de6ec157b38438e4b9860a6a8383760fadd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d7b65fe7597d5bdb17f88f4601baedf6567a2c5d144735971189359c920795f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d7b65fe7597d5bdb17f88f4601baedf6567a2c5d144735971189359c920795f", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling mopa v0.2.2
[INFO] [stderr]    Compiling tuple_utils v0.2.0
[INFO] [stderr]    Compiling shrev v1.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling hibitset v0.5.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling shred v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling specs v0.14.3
[INFO] [stderr]    Compiling specs-hierarchy v0.3.1
[INFO] [stderr]    Compiling hassium-core v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/assets/database.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fetch_engines: Vec<Box<FetchEngine>>,
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 |     protocols: HashMap<String, Box<AssetProtocol>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/assets/database.rs:22:43
[INFO] [stdout]    |
[INFO] [stdout] 22 |     loading: HashMap<String, (String, Box<FetchProcessReader>)>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/assets/database.rs:149:59
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn push_fetch_engine(&mut self, fetch_engine: Box<FetchEngine>) {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn pop_fetch_engine(&mut self) -> Option<Box<FetchEngine>> {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:173:23
[INFO] [stdout]     |
[INFO] [stdout] 173 |         F: FnMut(&mut FetchEngine) -> R,
[INFO] [stdout]     |                       ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:175:32
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let fetch_engine: &mut FetchEngine = self.fetch_engine_mut().borrow_mut();
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:188:69
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn unregister(&mut self, protocol_name: &str) -> Option<Box<AssetProtocol>> {
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/fetch/engines/fs.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/engines/map.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:32:32
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn box_clone(&self) -> Box<FetchProcessReader>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Clone for Box<FetchProcessReader> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:140:32
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn box_clone(&self) -> Box<FetchProcessReader> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:146:51
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus>;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:148:38
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn cancel(&mut self, reader: Box<FetchProcessReader>) {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.71s
[INFO] running `Command { std: "docker" "inspect" "4d7b65fe7597d5bdb17f88f4601baedf6567a2c5d144735971189359c920795f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7b65fe7597d5bdb17f88f4601baedf6567a2c5d144735971189359c920795f", kill_on_drop: false }`
[INFO] [stdout] 4d7b65fe7597d5bdb17f88f4601baedf6567a2c5d144735971189359c920795f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c7085eac9502523418e8cc51303d952f239c42ab25db4bdda1ee8b58023ba2a
[INFO] running `Command { std: "docker" "start" "-a" "1c7085eac9502523418e8cc51303d952f239c42ab25db4bdda1ee8b58023ba2a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hassium-core v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/assets/database.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fetch_engines: Vec<Box<FetchEngine>>,
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 |     protocols: HashMap<String, Box<AssetProtocol>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/assets/database.rs:22:43
[INFO] [stdout]    |
[INFO] [stdout] 22 |     loading: HashMap<String, (String, Box<FetchProcessReader>)>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/assets/database.rs:149:59
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn push_fetch_engine(&mut self, fetch_engine: Box<FetchEngine>) {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn pop_fetch_engine(&mut self) -> Option<Box<FetchEngine>> {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:173:23
[INFO] [stdout]     |
[INFO] [stdout] 173 |         F: FnMut(&mut FetchEngine) -> R,
[INFO] [stdout]     |                       ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:175:32
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let fetch_engine: &mut FetchEngine = self.fetch_engine_mut().borrow_mut();
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:188:69
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn unregister(&mut self, protocol_name: &str) -> Option<Box<AssetProtocol>> {
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/fetch/engines/fs.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/engines/map.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:32:32
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn box_clone(&self) -> Box<FetchProcessReader>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Clone for Box<FetchProcessReader> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:140:32
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn box_clone(&self) -> Box<FetchProcessReader> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:146:51
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus>;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:148:38
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn cancel(&mut self, reader: Box<FetchProcessReader>) {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/assets/database.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fetch_engines: Vec<Box<FetchEngine>>,
[INFO] [stdout]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 |     protocols: HashMap<String, Box<AssetProtocol>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/assets/database.rs:22:43
[INFO] [stdout]    |
[INFO] [stdout] 22 |     loading: HashMap<String, (String, Box<FetchProcessReader>)>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/assets/database.rs:149:59
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn push_fetch_engine(&mut self, fetch_engine: Box<FetchEngine>) {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn pop_fetch_engine(&mut self) -> Option<Box<FetchEngine>> {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:173:23
[INFO] [stdout]     |
[INFO] [stdout] 173 |         F: FnMut(&mut FetchEngine) -> R,
[INFO] [stdout]     |                       ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:175:32
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let fetch_engine: &mut FetchEngine = self.fetch_engine_mut().borrow_mut();
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: use `dyn`: `dyn FetchEngine`
[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/assets/database.rs:188:69
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn unregister(&mut self, protocol_name: &str) -> Option<Box<AssetProtocol>> {
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn AssetProtocol`
[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/fetch/engines/fs.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/engines/map.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:32:32
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn box_clone(&self) -> Box<FetchProcessReader>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Clone for Box<FetchProcessReader> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:140:32
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn box_clone(&self) -> Box<FetchProcessReader> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:146:51
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn fetch(&mut self, path: &str) -> Result<Box<FetchProcessReader>, FetchStatus>;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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/fetch/mod.rs:148:38
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn cancel(&mut self, reader: Box<FetchProcessReader>) {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FetchProcessReader`
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "1c7085eac9502523418e8cc51303d952f239c42ab25db4bdda1ee8b58023ba2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7085eac9502523418e8cc51303d952f239c42ab25db4bdda1ee8b58023ba2a", kill_on_drop: false }`
[INFO] [stdout] 1c7085eac9502523418e8cc51303d952f239c42ab25db4bdda1ee8b58023ba2a
