[INFO] fetching crate ucg 0.5.8...
[INFO] extracting crate ucg 0.5.8 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/ucg/0.5.8
[INFO] extracting crate ucg 0.5.8 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/ucg/0.5.8
[INFO] validating manifest of ucg-0.5.8 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ucg-0.5.8 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ucg-0.5.8
[INFO] finished frobbing ucg-0.5.8
[INFO] frobbed toml for ucg-0.5.8 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/ucg/0.5.8/Cargo.toml
[INFO] started frobbing ucg-0.5.8
[INFO] finished frobbing ucg-0.5.8
[INFO] frobbed toml for ucg-0.5.8 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/ucg/0.5.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ucg-0.5.8 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/ucg/0.5.8:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] c153567ad2fa407aa17ea81377c399669758801021d089086e9a87a7751fbd9b
[INFO] running `"docker" "start" "-a" "c153567ad2fa407aa17ea81377c399669758801021d089086e9a87a7751fbd9b"`
[INFO] [stderr]    Compiling simple-error v0.1.12
[INFO] [stderr]    Compiling abortable_parser v0.2.3
[INFO] [stderr]    Compiling serde_yaml v0.8.9
[INFO] [stderr]    Compiling ucg v0.5.8 (/opt/crater/workdir)
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ast/walk.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 |     handle_value: Option<&'a Fn(&mut Value)>,
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Value)`
[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/ast/walk.rs:5:35
[INFO] [stderr]   |
[INFO] [stderr] 5 |     handle_expression: Option<&'a Fn(&mut Expression)>,
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Expression)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ast/walk.rs:6:33
[INFO] [stderr]   |
[INFO] [stderr] 6 |     handle_statment: Option<&'a Fn(&mut Statement)>,
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Statement)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/walk.rs:18:48
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn with_value_handler(mut self, h: &'a Fn(&mut Value)) -> Self {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Value)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/walk.rs:23:47
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn with_expr_handler(mut self, h: &'a Fn(&mut Expression)) -> Self {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Expression)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/walk.rs:28:47
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn with_stmt_handler(mut self, h: &'a Fn(&mut Statement)) -> Self {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Statement)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/build/mod.rs:120:24
[INFO] [stderr]     |
[INFO] [stderr] 120 |     assets: Rc<RefCell<assets::Cache>>,
[INFO] [stderr]     |                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn assets::Cache`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/build/mod.rs:150:27
[INFO] [stderr]     |
[INFO] [stderr] 150 |         cache: Rc<RefCell<assets::Cache>>,
[INFO] [stderr]     |                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn assets::Cache`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/build/mod.rs:161:27
[INFO] [stderr]     |
[INFO] [stderr] 161 |         cache: Rc<RefCell<assets::Cache>>,
[INFO] [stderr]     |                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn assets::Cache`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/env.rs:32:68
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn convert_tuple(&self, flds: &Vec<(String, Rc<Val>)>, w: &mut IOWrite) -> ConvertResult {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn IOWrite`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/env.rs:48:60
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn convert_list(&self, _items: &Vec<Rc<Val>>, _w: &mut IOWrite) -> ConvertResult {
[INFO] [stderr]    |                                                            ^^^^^^^ help: use `dyn`: `dyn IOWrite`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/env.rs:53:38
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn write(&self, v: &Val, w: &mut IOWrite) -> ConvertResult {
[INFO] [stderr]    |                                      ^^^^^^^ help: use `dyn`: `dyn IOWrite`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/env.rs:95:47
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn convert(&self, v: Rc<Val>, mut w: &mut IOWrite) -> ConvertResult {
[INFO] [stderr]    |                                               ^^^^^^^ help: use `dyn`: `dyn IOWrite`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/exec.rs:41:38
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn write(&self, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]    |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/exec.rs:178:47
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/flags.rs:32:62
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn write_flag_name(&self, pfx: &str, name: &str, w: &mut Write) -> ConvertResult {
[INFO] [stderr]    |                                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/flags.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |         w: &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/convert/flags.rs:64:49
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn write(&self, pfx: &str, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]    |                                                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/flags.rs:124:47
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/json.rs:120:38
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn write(&self, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/json.rs:128:47
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/toml.rs:30:52
[INFO] [stderr]    |
[INFO] [stderr] 30 | type Result = std::result::Result<toml::Value, Box<error::Error>>;
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/toml.rs:111:38
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn write(&self, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/toml.rs:120:47
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/traits.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn convert(&self, vs: Rc<Val>, w: &mut Write) -> ConvertResult;
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/xml.rs:157:38
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn write(&self, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/xml.rs:227:47
[INFO] [stderr]     |
[INFO] [stderr] 227 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/yaml.rs:117:38
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn write(&self, v: &Val, w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/convert/yaml.rs:125:47
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn convert(&self, v: Rc<Val>, mut w: &mut Write) -> ConvertResult {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/mod.rs:58:72
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn register<S: Into<String>>(&mut self, typ: S, converter: Box<traits::Converter>) {
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn traits::Converter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/mod.rs:62:55
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn get_converter(&self, typ: &str) -> Option<&traits::Converter> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn traits::Converter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/convert/mod.rs:66:60
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn get_converter_list(&self) -> Vec<(&String, &Box<traits::Converter>)> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn traits::Converter`
[INFO] [stderr] 
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> src/build/mod.rs:233:22
[INFO] [stderr]     |
[INFO] [stderr] 233 |                     .as_ref(),
[INFO] [stderr]     |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `ucg`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c153567ad2fa407aa17ea81377c399669758801021d089086e9a87a7751fbd9b"`
[INFO] running `"docker" "rm" "-f" "c153567ad2fa407aa17ea81377c399669758801021d089086e9a87a7751fbd9b"`
[INFO] [stdout] c153567ad2fa407aa17ea81377c399669758801021d089086e9a87a7751fbd9b