[INFO] updating cached repository KeyboardFire/babble
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KeyboardFire/babble
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KeyboardFire/babble" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/KeyboardFire/babble"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/KeyboardFire/babble'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KeyboardFire/babble" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/KeyboardFire/babble"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/KeyboardFire/babble'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 81f62d344385882d202b0440a34e4dfbffecbb42
[INFO] sha for GitHub repo KeyboardFire/babble: 81f62d344385882d202b0440a34e4dfbffecbb42
[INFO] validating manifest of KeyboardFire/babble on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of KeyboardFire/babble on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing KeyboardFire/babble
[INFO] finished frobbing KeyboardFire/babble
[INFO] frobbed toml for KeyboardFire/babble written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/KeyboardFire/babble/Cargo.toml
[INFO] started frobbing KeyboardFire/babble
[INFO] finished frobbing KeyboardFire/babble
[INFO] frobbed toml for KeyboardFire/babble written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/KeyboardFire/babble/Cargo.toml
[INFO] crate KeyboardFire/babble already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/KeyboardFire/babble/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking KeyboardFire/babble against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/KeyboardFire/babble:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0506cea5239e37890a8230f56c80259c81a5aa56777dfa10e01adf6dfa69aeb5
[INFO] running `"docker" "start" "-a" "0506cea5239e37890a8230f56c80259c81a5aa56777dfa10e01adf6dfa69aeb5"`
[INFO] [stderr]     Checking babble v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:18
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:39
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:51
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |                        stdout: &mut Write, stdin: &mut Read) {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:92:56
[INFO] [stderr]    |
[INFO] [stderr] 92 |                        stdout: &mut Write, stdin: &mut Read) {
[INFO] [stderr]    |                                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:100:41
[INFO] [stderr]     |
[INFO] [stderr] 100 |       fn tokenize(code: String) -> Vec<Rc<Fn(&mut Babble, &mut Write,
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 101 | |                                            &mut Read)>> {
[INFO] [stderr]     | |_____________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn tokenize(code: String) -> Vec<Rc<dyn Fn(&mut Babble, &mut Write,
[INFO] [stderr] 101 |                                            &mut Read)>> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:100:62
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn tokenize(code: String) -> Vec<Rc<Fn(&mut Babble, &mut Write,
[INFO] [stderr]     |                                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:49
[INFO] [stderr]     |
[INFO] [stderr] 101 |                                            &mut Read)>> {
[INFO] [stderr]     |                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:26
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:47
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:59
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:26
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:47
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:59
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:26
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:47
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:59
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:26
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:47
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:59
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:18
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:39
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:51
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Block(Vec<Rc<Fn(&mut Babble, &mut Write, &mut Read)>>)
[INFO] [stderr]    |                                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |                        stdout: &mut Write, stdin: &mut Read) {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:92:56
[INFO] [stderr]    |
[INFO] [stderr] 92 |                        stdout: &mut Write, stdin: &mut Read) {
[INFO] [stderr]    |                                                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:100:41
[INFO] [stderr]     |
[INFO] [stderr] 100 |       fn tokenize(code: String) -> Vec<Rc<Fn(&mut Babble, &mut Write,
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 101 | |                                            &mut Read)>> {
[INFO] [stderr]     | |_____________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn tokenize(code: String) -> Vec<Rc<dyn Fn(&mut Babble, &mut Write,
[INFO] [stderr] 101 |                                            &mut Read)>> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:100:62
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn tokenize(code: String) -> Vec<Rc<Fn(&mut Babble, &mut Write,
[INFO] [stderr]     |                                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:49
[INFO] [stderr]     |
[INFO] [stderr] 101 |                                            &mut Read)>> {
[INFO] [stderr]     |                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:26
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:47
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:114:59
[INFO] [stderr]     |
[INFO] [stderr] 114 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:26
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:47
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:337:59
[INFO] [stderr]     |
[INFO] [stderr] 337 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:26
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:47
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:59
[INFO] [stderr]     |
[INFO] [stderr] 378 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:26
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Babble, &mut Write, &mut Read)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:47
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:396:59
[INFO] [stderr]     |
[INFO] [stderr] 396 |             -> Option<Rc<Fn(&mut Babble, &mut Write, &mut Read)>> {
[INFO] [stderr]     |                                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `this`
[INFO] [stderr]    --> src/lib.rs:260:36
[INFO] [stderr]     |
[INFO] [stderr] 260 |             "RNG" => Some(Rc::new(|this, _, _| {
[INFO] [stderr]     |                                    ^^^^ help: consider prefixing with an underscore: `_this`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `this`
[INFO] [stderr]    --> src/lib.rs:260:36
[INFO] [stderr]     |
[INFO] [stderr] 260 |             "RNG" => Some(Rc::new(|this, _, _| {
[INFO] [stderr]     |                                    ^^^^ help: consider prefixing with an underscore: `_this`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn parse_literal_array(mut code: &mut BabbleCodeIterator)
[INFO] [stderr]     |                            ----^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:395:26
[INFO] [stderr]     |
[INFO] [stderr] 395 |     fn parse_literal_num(mut code: &mut BabbleCodeIterator)
[INFO] [stderr]     |                          ----^^^^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn parse_literal_array(mut code: &mut BabbleCodeIterator)
[INFO] [stderr]     |                            ----^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:395:26
[INFO] [stderr]     |
[INFO] [stderr] 395 |     fn parse_literal_num(mut code: &mut BabbleCodeIterator)
[INFO] [stderr]     |                          ----^^^^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut stream: Box<Read> = if matches.free.is_empty() {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut stream: Box<Read> = if matches.free.is_empty() {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "0506cea5239e37890a8230f56c80259c81a5aa56777dfa10e01adf6dfa69aeb5"`
[INFO] running `"docker" "rm" "-f" "0506cea5239e37890a8230f56c80259c81a5aa56777dfa10e01adf6dfa69aeb5"`
[INFO] [stdout] 0506cea5239e37890a8230f56c80259c81a5aa56777dfa10e01adf6dfa69aeb5