[INFO] updating cached repository gluaxspeed/rust-compiler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gluaxspeed/rust-compiler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gluaxspeed/rust-compiler" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gluaxspeed/rust-compiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gluaxspeed/rust-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gluaxspeed/rust-compiler" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gluaxspeed/rust-compiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gluaxspeed/rust-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a379af0c2379f0e8e481165936b27365e1b1ac1c
[INFO] sha for GitHub repo gluaxspeed/rust-compiler: a379af0c2379f0e8e481165936b27365e1b1ac1c
[INFO] validating manifest of gluaxspeed/rust-compiler 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 gluaxspeed/rust-compiler 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 gluaxspeed/rust-compiler
[INFO] finished frobbing gluaxspeed/rust-compiler
[INFO] frobbed toml for gluaxspeed/rust-compiler written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gluaxspeed/rust-compiler/Cargo.toml
[INFO] started frobbing gluaxspeed/rust-compiler
[INFO] finished frobbing gluaxspeed/rust-compiler
[INFO] frobbed toml for gluaxspeed/rust-compiler written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gluaxspeed/rust-compiler/Cargo.toml
[INFO] crate gluaxspeed/rust-compiler 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gluaxspeed/rust-compiler 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/gluaxspeed/rust-compiler:/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] 61379e1747f9fbbaed387097bdf1bc82a7cfb07e3b3ea282c2a7daa621487b00
[INFO] running `"docker" "start" "-a" "61379e1747f9fbbaed387097bdf1bc82a7cfb07e3b3ea282c2a7daa621487b00"`
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:18:29
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]    |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[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/parser/ast.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub val: Option<Box<Expression>>,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:68:32
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub return_val: Option<Box<Expression>>,
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:92:32
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub expression: Option<Box<Expression>>,
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:205:27
[INFO] [stderr]     |
[INFO] [stderr] 205 |     pub right: Option<Box<Expression>>,
[INFO] [stderr]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:230:19
[INFO] [stderr]     |
[INFO] [stderr] 230 |     pub left: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:231:20
[INFO] [stderr]     |
[INFO] [stderr] 231 |     pub right: Box<Expression>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:252:19
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub cond: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:315:19
[INFO] [stderr]     |
[INFO] [stderr] 315 |     pub func: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:316:30
[INFO] [stderr]     |
[INFO] [stderr] 316 |     pub args: Option<Vec<Box<Expression>>>,
[INFO] [stderr]     |                              ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:34:52
[INFO] [stderr]    |
[INFO] [stderr] 34 | type PrefixParseFn = fn(&mut Parser) -> Option<Box<ast::Expression>>;
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:35:41
[INFO] [stderr]    |
[INFO] [stderr] 35 | type InfixParseFn = fn(&mut Parser, Box<ast::Expression>) -> Box<ast::Expression>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:35:66
[INFO] [stderr]    |
[INFO] [stderr] 35 | type InfixParseFn = fn(&mut Parser, Box<ast::Expression>) -> Box<ast::Expression>;
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:45:48
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn parse_ident(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:52:54
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn parse_int_literal(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:67:47
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn parse_bool(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:74:61
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn parse_grouped_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:86:60
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn parse_prefix_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:97:56
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn parse_if_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:133:59
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn parse_function_literal(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:157:55
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn parse_infix_expression(par: &mut Parser, left: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:157:80
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn parse_infix_expression(par: &mut Parser, left: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:171:54
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_call_expression(par: &mut Parser, func: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:171:79
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_call_expression(par: &mut Parser, func: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:208:32
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let mut stmts: Vec<Box<ast::Statement>> = Vec::new();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:271:53
[INFO] [stderr]     |
[INFO] [stderr] 271 |     fn parse_call_args(&mut self) -> Option<Vec<Box<ast::Expression>>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:272:31
[INFO] [stderr]     |
[INFO] [stderr] 272 |         let mut args: Vec<Box<ast::Expression>> = Vec::new();
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:315:66
[INFO] [stderr]     |
[INFO] [stderr] 315 |     fn parse_expression(&mut self, precedence: u8) -> Option<Box<ast::Expression>> {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:348:53
[INFO] [stderr]     |
[INFO] [stderr] 348 |     fn parse_let_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:377:56
[INFO] [stderr]     |
[INFO] [stderr] 377 |     fn parse_return_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:392:60
[INFO] [stderr]     |
[INFO] [stderr] 392 |     fn parse_expression_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:406:49
[INFO] [stderr]     |
[INFO] [stderr] 406 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:415:32
[INFO] [stderr]     |
[INFO] [stderr] 415 |         let mut stmts: Vec<Box<ast::Statement>> = Vec::new();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:18:29
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]    |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[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/parser/ast.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub val: Option<Box<Expression>>,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:68:32
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub return_val: Option<Box<Expression>>,
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast.rs:92:32
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub expression: Option<Box<Expression>>,
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:205:27
[INFO] [stderr]     |
[INFO] [stderr] 205 |     pub right: Option<Box<Expression>>,
[INFO] [stderr]     |                           ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:230:19
[INFO] [stderr]     |
[INFO] [stderr] 230 |     pub left: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:231:20
[INFO] [stderr]     |
[INFO] [stderr] 231 |     pub right: Box<Expression>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:252:19
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub cond: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:315:19
[INFO] [stderr]     |
[INFO] [stderr] 315 |     pub func: Box<Expression>,
[INFO] [stderr]     |                   ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/ast.rs:316:30
[INFO] [stderr]     |
[INFO] [stderr] 316 |     pub args: Option<Vec<Box<Expression>>>,
[INFO] [stderr]     |                              ^^^^^^^^^^ help: use `dyn`: `dyn Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:34:52
[INFO] [stderr]    |
[INFO] [stderr] 34 | type PrefixParseFn = fn(&mut Parser) -> Option<Box<ast::Expression>>;
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:35:41
[INFO] [stderr]    |
[INFO] [stderr] 35 | type InfixParseFn = fn(&mut Parser, Box<ast::Expression>) -> Box<ast::Expression>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:35:66
[INFO] [stderr]    |
[INFO] [stderr] 35 | type InfixParseFn = fn(&mut Parser, Box<ast::Expression>) -> Box<ast::Expression>;
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:45:48
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn parse_ident(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:52:54
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn parse_int_literal(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:67:47
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn parse_bool(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:74:61
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn parse_grouped_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:86:60
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn parse_prefix_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:97:56
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn parse_if_expression(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:133:59
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn parse_function_literal(par: &mut Parser) -> Option<Box<ast::Expression>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:157:55
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn parse_infix_expression(par: &mut Parser, left: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:157:80
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn parse_infix_expression(par: &mut Parser, left: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:171:54
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_call_expression(par: &mut Parser, func: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:171:79
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_call_expression(par: &mut Parser, func: Box<ast::Expression>) -> Box<ast::Expression> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:208:32
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let mut stmts: Vec<Box<ast::Statement>> = Vec::new();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:271:53
[INFO] [stderr]     |
[INFO] [stderr] 271 |     fn parse_call_args(&mut self) -> Option<Vec<Box<ast::Expression>>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:272:31
[INFO] [stderr]     |
[INFO] [stderr] 272 |         let mut args: Vec<Box<ast::Expression>> = Vec::new();
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:315:66
[INFO] [stderr]     |
[INFO] [stderr] 315 |     fn parse_expression(&mut self, precedence: u8) -> Option<Box<ast::Expression>> {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Expression`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:348:53
[INFO] [stderr]     |
[INFO] [stderr] 348 |     fn parse_let_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:377:56
[INFO] [stderr]     |
[INFO] [stderr] 377 |     fn parse_return_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:392:60
[INFO] [stderr]     |
[INFO] [stderr] 392 |     fn parse_expression_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:406:49
[INFO] [stderr]     |
[INFO] [stderr] 406 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:415:32
[INFO] [stderr]     |
[INFO] [stderr] 415 |         let mut stmts: Vec<Box<ast::Statement>> = Vec::new();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "61379e1747f9fbbaed387097bdf1bc82a7cfb07e3b3ea282c2a7daa621487b00"`
[INFO] running `"docker" "rm" "-f" "61379e1747f9fbbaed387097bdf1bc82a7cfb07e3b3ea282c2a7daa621487b00"`
[INFO] [stdout] 61379e1747f9fbbaed387097bdf1bc82a7cfb07e3b3ea282c2a7daa621487b00