[INFO] crate config 0.9.3 is already in cache
[INFO] extracting crate config 0.9.3 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/config/0.9.3
[INFO] extracting crate config 0.9.3 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/config/0.9.3
[INFO] validating manifest of config-0.9.3 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 config-0.9.3 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 config-0.9.3
[INFO] finished frobbing config-0.9.3
[INFO] frobbed toml for config-0.9.3 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/config/0.9.3/Cargo.toml
[INFO] started frobbing config-0.9.3
[INFO] finished frobbing config-0.9.3
[INFO] frobbed toml for config-0.9.3 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/config/0.9.3/Cargo.toml
[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 config-0.9.3 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-3/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/config/0.9.3:/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] 3077b3c4c6833a983955ccc2191ac1adde4e1418de85a8536602f08093fbdba6
[INFO] running `"docker" "start" "-a" "3077b3c4c6833a983955ccc2191ac1adde4e1418de85a8536602f08093fbdba6"`
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking config v0.9.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sources: Vec<Box<Source + Send + Sync>>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[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/config.rs:214:37
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/env.rs:66:37
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |         cause: Box<Error + Send + Sync>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |     Foreign(Box<Error + Send + Sync>),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:226:32
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/toml.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/json.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/yaml.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/hjson.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/ini.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/mod.rs:89:45
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/file.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |     ) -> Result<(PathBuf, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/file.rs:94:59
[INFO] [stderr]    |
[INFO] [stderr] 94 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/string.rs:22:59
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/mod.rs:15:59
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>>;
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/mod.rs:97:37
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/path/parser.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn postfix(expr: Expression) -> Box<Fn(CompleteStr) -> IResult<CompleteStr, Expression>> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(CompleteStr) -> IResult<CompleteStr, Expression>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:10:37
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn clone_into_box(&self) -> Box<Source + Send + Sync>;
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl Clone for Box<Source + Send + Sync> {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn clone(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl Source for Vec<Box<Source + Send + Sync>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:70:37
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/path/mod.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 let mut do_again = false;
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sources: Vec<Box<Source + Send + Sync>>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[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/config.rs:214:37
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/env.rs:66:37
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |         cause: Box<Error + Send + Sync>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |     Foreign(Box<Error + Send + Sync>),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:226:32
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/toml.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/json.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/yaml.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/hjson.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/ini.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/format/mod.rs:89:45
[INFO] [stderr]    |
[INFO] [stderr] 89 |     ) -> Result<HashMap<String, Value>, Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/file.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |     ) -> Result<(PathBuf, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/file.rs:94:59
[INFO] [stderr]    |
[INFO] [stderr] 94 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/string.rs:22:59
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/source/mod.rs:15:59
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ) -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>>;
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file/mod.rs:97:37
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/path/parser.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn postfix(expr: Expression) -> Box<Fn(CompleteStr) -> IResult<CompleteStr, Expression>> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(CompleteStr) -> IResult<CompleteStr, Expression>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:10:37
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn clone_into_box(&self) -> Box<Source + Send + Sync>;
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl Clone for Box<Source + Send + Sync> {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn clone(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl Source for Vec<Box<Source + Send + Sync>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source.rs:70:37
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn clone_into_box(&self) -> Box<Source + Send + Sync> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/path/mod.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 let mut do_again = false;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `"docker" "inspect" "3077b3c4c6833a983955ccc2191ac1adde4e1418de85a8536602f08093fbdba6"`
[INFO] running `"docker" "rm" "-f" "3077b3c4c6833a983955ccc2191ac1adde4e1418de85a8536602f08093fbdba6"`
[INFO] [stdout] 3077b3c4c6833a983955ccc2191ac1adde4e1418de85a8536602f08093fbdba6