[INFO] fetching crate fungui 0.1.1... [INFO] checking fungui-0.1.1 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387 [INFO] extracting crate fungui 0.1.1 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate fungui 0.1.1 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fungui 0.1.1 [INFO] finished tweaking crates.io crate fungui 0.1.1 [INFO] tweaked toml for crates.io crate fungui 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ref_filter_map v1.0.1 [INFO] [stderr] Downloaded fungui_syntax v0.1.1 [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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5f95fb9abb1c9c1631837c9856531d2b1ef33d5683cc61e7e9024af86d6ec092 [INFO] running `Command { std: "docker" "start" "-a" "5f95fb9abb1c9c1631837c9856531d2b1ef33d5683cc61e7e9024af86d6ec092", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5f95fb9abb1c9c1631837c9856531d2b1ef33d5683cc61e7e9024af86d6ec092", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f95fb9abb1c9c1631837c9856531d2b1ef33d5683cc61e7e9024af86d6ec092", kill_on_drop: false }` [INFO] [stdout] 5f95fb9abb1c9c1631837c9856531d2b1ef33d5683cc61e7e9024af86d6ec092 [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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--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] a0f134e9c5829d3558b30e3e595f342e6ee2f2f859bc1f0202570eb7797bbf51 [INFO] running `Command { std: "docker" "start" "-a" "a0f134e9c5829d3558b30e3e595f342e6ee2f2f859bc1f0202570eb7797bbf51", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking ref_filter_map v1.0.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking combine v3.8.1 [INFO] [stderr] Checking fungui_syntax v0.1.1 [INFO] [stderr] Checking fungui v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:5:32 [INFO] [stdout] | [INFO] [stdout] 5 | pub(crate) type SFunc = Box Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:5:49 [INFO] [stdout] | [INFO] [stdout] 5 | pub(crate) type SFunc = Box Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator, Error<'a>>> + 'a` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:13:54 [INFO] [stdout] | [INFO] [stdout] 13 | pub(crate) layouts: FnvHashMap<&'static str, Box Box>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Box>` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:13:66 [INFO] [stdout] | [INFO] [stdout] 13 | pub(crate) layouts: FnvHashMap<&'static str, Box Box>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BoxLayoutEngine` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:232:107 [INFO] [stdout] | [INFO] [stdout] 232 | fn update_child_data(&mut self, styles: &Styles, nc: &NodeChain, rule: &Rule, data: &mut Box) -> DirtyFlags; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:234:92 [INFO] [stdout] | [INFO] [stdout] 234 | fn reset_unset_child_data(&mut self, used_keys: &FnvHashSet, data: &mut Box) -> DirtyFlags; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:5:32 [INFO] [stdout] | [INFO] [stdout] 5 | pub(crate) type SFunc = Box Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:239:90 [INFO] [stdout] | [INFO] [stdout] 239 | fn do_layout(&mut self, value: &NodeValue, _ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Rect; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:5:49 [INFO] [stdout] | [INFO] [stdout] 5 | pub(crate) type SFunc = Box Fn(&mut (Iterator, Error<'a>>> + 'a)) -> Result, Error<'a>> + 'static>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator, Error<'a>>> + 'a` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:240:94 [INFO] [stdout] | [INFO] [stdout] 240 | fn do_layout_end(&mut self, value: &NodeValue, _ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> R... [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:13:54 [INFO] [stdout] | [INFO] [stdout] 13 | pub(crate) layouts: FnvHashMap<&'static str, Box Box>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Box>` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/style.rs:13:66 [INFO] [stdout] | [INFO] [stdout] 13 | pub(crate) layouts: FnvHashMap<&'static str, Box Box>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BoxLayoutEngine` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:255:107 [INFO] [stdout] | [INFO] [stdout] 255 | fn update_child_data(&mut self, styles: &Styles, nc: &NodeChain, rule: &Rule, data: &mut Box) -> DirtyFlags { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:232:107 [INFO] [stdout] | [INFO] [stdout] 232 | fn update_child_data(&mut self, styles: &Styles, nc: &NodeChain, rule: &Rule, data: &mut Box) -> DirtyFlags; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:234:92 [INFO] [stdout] | [INFO] [stdout] 234 | fn reset_unset_child_data(&mut self, used_keys: &FnvHashSet, data: &mut Box) -> DirtyFlags; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:266:92 [INFO] [stdout] | [INFO] [stdout] 266 | fn reset_unset_child_data(&mut self, used_keys: &FnvHashSet, data: &mut Box) -> DirtyFlags { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:239:90 [INFO] [stdout] | [INFO] [stdout] 239 | fn do_layout(&mut self, value: &NodeValue, _ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Rect; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:240:94 [INFO] [stdout] | [INFO] [stdout] 240 | fn do_layout_end(&mut self, value: &NodeValue, _ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> R... [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:284:89 [INFO] [stdout] | [INFO] [stdout] 284 | fn do_layout(&mut self, value: &NodeValue, ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Rect { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:255:107 [INFO] [stdout] | [INFO] [stdout] 255 | fn update_child_data(&mut self, styles: &Styles, nc: &NodeChain, rule: &Rule, data: &mut Box) -> DirtyFlags { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:288:93 [INFO] [stdout] | [INFO] [stdout] 288 | fn do_layout_end(&mut self, value: &NodeValue, ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Re... [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:266:92 [INFO] [stdout] | [INFO] [stdout] 266 | fn reset_unset_child_data(&mut self, used_keys: &FnvHashSet, data: &mut Box) -> DirtyFlags { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:284:89 [INFO] [stdout] | [INFO] [stdout] 284 | fn do_layout(&mut self, value: &NodeValue, ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Rect { [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/layout.rs:288:93 [INFO] [stdout] | [INFO] [stdout] 288 | fn do_layout_end(&mut self, value: &NodeValue, ext: &mut E::NodeData, data: &mut Box, current: Rect, flags: DirtyFlags) -> Re... [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:413:29 [INFO] [stdout] | [INFO] [stdout] 413 | F: for<'a> Fn(&mut (Iterator>> + 'a)) -> FResult<'a, Value> + 'static, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>> + 'a` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:413:29 [INFO] [stdout] | [INFO] [stdout] 413 | F: for<'a> Fn(&mut (Iterator>> + 'a)) -> FResult<'a, Value> + 'static, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>> + 'a` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tests.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut stdout = std::io::stdout(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.05s [INFO] running `Command { std: "docker" "inspect" "a0f134e9c5829d3558b30e3e595f342e6ee2f2f859bc1f0202570eb7797bbf51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0f134e9c5829d3558b30e3e595f342e6ee2f2f859bc1f0202570eb7797bbf51", kill_on_drop: false }` [INFO] [stdout] a0f134e9c5829d3558b30e3e595f342e6ee2f2f859bc1f0202570eb7797bbf51