[INFO] fetching crate peep 0.1.4...
[INFO] checking peep-0.1.4 against beta for pr-78714
[INFO] extracting crate peep 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate peep 0.1.4 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peep 0.1.4
[INFO] finished tweaking crates.io crate peep 0.1.4
[INFO] tweaked toml for crates.io crate peep 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a91ac969b22af116ebc217c97ff2049ed486a2fc7770ee50ea23f30ed4706b5
[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" "0a91ac969b22af116ebc217c97ff2049ed486a2fc7770ee50ea23f30ed4706b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a91ac969b22af116ebc217c97ff2049ed486a2fc7770ee50ea23f30ed4706b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a91ac969b22af116ebc217c97ff2049ed486a2fc7770ee50ea23f30ed4706b5", kill_on_drop: false }`
[INFO] [stdout] 0a91ac969b22af116ebc217c97ff2049ed486a2fc7770ee50ea23f30ed4706b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ff1f3d6ec9586f7b5854a3d71a1f8aa52a0133da6aaebe3f933376c5cb12841
[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" "3ff1f3d6ec9586f7b5854a3d71a1f8aa52a0133da6aaebe3f933376c5cb12841", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking inotify-sys v0.1.4
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking peep v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     istream: &'a mut Read,
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     parser: &'a mut keybind::KeyParser,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn keybind::KeyParser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:32:33
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(istream: &'a mut Read, parser: &'a mut keybind::KeyParser) -> Self {
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:32:55
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(istream: &'a mut Read, parser: &'a mut keybind::KeyParser) -> Self {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn keybind::KeyParser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRawFd` is imported redundantly
[INFO] [stdout]   --> src/app.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |     -------------------------- the item `AsRawFd` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 79 |         use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/app.rs:145:26
[INFO] [stdout]     |
[INFO] [stdout] 145 |     searcher: Rc<RefCell<search::Search>>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn search::Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/filewatch/mod.rs:24:73
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn watch(&mut self, timeout: Option<Duration>) -> io::Result<Option<(bool)>>;
[INFO] [stdout]    |                                                                         ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/filewatch/mod.rs:32:73
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn watch(&mut self, timeout: Option<Duration>) -> io::Result<Option<(bool)>> {
[INFO] [stdout]    |                                                                         ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filewatch/mod.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let filewatcher: &mut FileWatch = if file_path == "-" {
[INFO] [stdout]    |                           ^^^^^^^^^ help: use `dyn`: `dyn FileWatch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/keybind.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 '1'...'9' => {
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/keybind.rs:175:20
[INFO] [stdout]     |
[INFO] [stdout] 175 |                 '0'...'9' => {
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     writer: Box<RefCell<'a + Write>>,
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn 'a + Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |     hlsearcher: Rc<RefCell<Search>>,
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |     termsize_getter: Box<Fn() -> io::Result<(u16, u16)>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<(u16, u16)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |             0...2 => format!("{:>2}", line_number + 1),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:239:14
[INFO] [stdout]     |
[INFO] [stdout] 239 |             0...2 => "  ".to_owned(),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:448:14
[INFO] [stdout]     |
[INFO] [stdout] 448 |             0...99 => 2,
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:449:16
[INFO] [stdout]     |
[INFO] [stdout] 449 |             100...999 => 3,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:450:17
[INFO] [stdout]     |
[INFO] [stdout] 450 |             1000...9999 => 4,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pane.rs:463:67
[INFO] [stdout]     |
[INFO] [stdout] 463 |     pub fn set_highlight_searcher(&mut self, searcher: Rc<RefCell<Search>>) {
[INFO] [stdout]     |                                                                   ^^^^^^ help: use `dyn`: `dyn Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     istream: &'a mut Read,
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     parser: &'a mut keybind::KeyParser,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn keybind::KeyParser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:32:33
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(istream: &'a mut Read, parser: &'a mut keybind::KeyParser) -> Self {
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app.rs:32:55
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(istream: &'a mut Read, parser: &'a mut keybind::KeyParser) -> Self {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn keybind::KeyParser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRawFd` is imported redundantly
[INFO] [stdout]   --> src/app.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |     -------------------------- the item `AsRawFd` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 79 |         use std::os::unix::io::AsRawFd;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/app.rs:145:26
[INFO] [stdout]     |
[INFO] [stdout] 145 |     searcher: Rc<RefCell<search::Search>>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn search::Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/filewatch/mod.rs:24:73
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn watch(&mut self, timeout: Option<Duration>) -> io::Result<Option<(bool)>>;
[INFO] [stdout]    |                                                                         ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/filewatch/mod.rs:32:73
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn watch(&mut self, timeout: Option<Duration>) -> io::Result<Option<(bool)>> {
[INFO] [stdout]    |                                                                         ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filewatch/mod.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let filewatcher: &mut FileWatch = if file_path == "-" {
[INFO] [stdout]    |                           ^^^^^^^^^ help: use `dyn`: `dyn FileWatch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/keybind.rs:129:20
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 '1'...'9' => {
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/keybind.rs:175:20
[INFO] [stdout]     |
[INFO] [stdout] 175 |                 '0'...'9' => {
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     writer: Box<RefCell<'a + Write>>,
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn 'a + Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |     hlsearcher: Rc<RefCell<Search>>,
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pane.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |     termsize_getter: Box<Fn() -> io::Result<(u16, u16)>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<(u16, u16)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pane.rs:105:55
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn replace_termsize_getter(&mut self, getter: Box<Fn() -> io::Result<(u16, u16)>>) {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<(u16, u16)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |             0...2 => format!("{:>2}", line_number + 1),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:239:14
[INFO] [stdout]     |
[INFO] [stdout] 239 |             0...2 => "  ".to_owned(),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:448:14
[INFO] [stdout]     |
[INFO] [stdout] 448 |             0...99 => 2,
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:449:16
[INFO] [stdout]     |
[INFO] [stdout] 449 |             100...999 => 3,
[INFO] [stdout]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/pane.rs:450:17
[INFO] [stdout]     |
[INFO] [stdout] 450 |             1000...9999 => 4,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pane.rs:463:67
[INFO] [stdout]     |
[INFO] [stdout] 463 |     pub fn set_highlight_searcher(&mut self, searcher: Rc<RefCell<Search>>) {
[INFO] [stdout]     |                                                                   ^^^^^^ help: use `dyn`: `dyn Search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pane.rs:765:54
[INFO] [stdout]     |
[INFO] [stdout] 765 |     fn gen_sizer(w: u16, h: u16) -> ((u16, u16), Box<Fn() -> io::Result<(u16, u16)>>) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<(u16, u16)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/app.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |             let mut bufreader = BufReader::new(file);
[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: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/app.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |             let mut bufreader = BufReader::new(file);
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.71s
[INFO] running `Command { std: "docker" "inspect" "3ff1f3d6ec9586f7b5854a3d71a1f8aa52a0133da6aaebe3f933376c5cb12841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff1f3d6ec9586f7b5854a3d71a1f8aa52a0133da6aaebe3f933376c5cb12841", kill_on_drop: false }`
[INFO] [stdout] 3ff1f3d6ec9586f7b5854a3d71a1f8aa52a0133da6aaebe3f933376c5cb12841