[INFO] cloning repository https://github.com/nukep/fn65
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nukep/fn65" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnukep%2Ffn65"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnukep%2Ffn65'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 48c2f9999b2165eadc5210000bc84d5edf98043c
[INFO] checking nukep/fn65 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnukep%2Ffn65" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nukep/fn65 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nukep/fn65
[INFO] finished tweaking git repo https://github.com/nukep/fn65
[INFO] tweaked toml for git repo https://github.com/nukep/fn65 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/nukep/fn65 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 42f817669b836d263a7d41f4320c67991fa1a42a398e7d31765ee2200a1018b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "42f817669b836d263a7d41f4320c67991fa1a42a398e7d31765ee2200a1018b5"`
[INFO] [stderr]     Checking fn65 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: associated type defaults are unstable
[INFO] [stderr]   --> src/syntax/parser/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     type Output: Sized = Self;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29661 <https://github.com/rust-lang/rust/issues/29661> for more information
[INFO] [stderr]    = help: add `#![feature(associated_type_defaults)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:149:36
[INFO] [stderr]     |
[INFO] [stderr] 149 |                           let tail = try!(match_punct(remainder, remainder_loc));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] ...
[INFO] [stderr] 176 | / gen_punct! {
[INFO] [stderr] 177 | |     "->" => OutArrow,
[INFO] [stderr] 178 | |     "=>" => FatArrow,
[INFO] [stderr] 179 | |     "<-" => InArrow,
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |     "--" => DoubleMinus
[INFO] [stderr] 212 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:377:21
[INFO] [stderr]     |
[INFO] [stderr] 377 |             let l = try!(match_punct(&buf, self.buffer_beginning_loc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:428:21
[INFO] [stderr]     |
[INFO] [stderr] 428 |         let lexer = try!(self.feed_character('\n', loc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:468:37
[INFO] [stderr]     |
[INFO] [stderr] 468 | ...                   lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:472:29
[INFO] [stderr]     |
[INFO] [stderr] 472 |                     lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:475:25
[INFO] [stderr]     |
[INFO] [stderr] 475 |                 lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/parser/mod.rs:88:30
[INFO] [stderr]    |
[INFO] [stderr] 88 |         if let Some(value) = try!(R::parse_lookahead(tokens)) {
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         try!(rule_result_not_first($r))
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 92 |                 let value = try_notfirst!(R::parse(tokens));
[INFO] [stderr]    |                             ------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:110:21
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let value = try!(R::parse(tokens));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |             let value = try_notfirst!(R::parse(tokens));
[INFO] [stderr]     |                         ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:147:33
[INFO] [stderr]     |
[INFO] [stderr] 147 |         while let Some(value) = try!(R::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let items = try!(SeriesRule::<ast::ModuleItem>::parse(tokens));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 184 |         (true, try_notfirst!(ast::ModuleItemType::parse(tokens)))
[INFO] [stderr]     |                ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 186 |         (false, try!(ast::ModuleItemType::parse(tokens)))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:196:29
[INFO] [stderr]     |
[INFO] [stderr] 196 |     if let Some(function) = try!(ast::Function::parse_lookahead(tokens)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:204:21
[INFO] [stderr]     |
[INFO] [stderr] 204 |     let primitive = try!(tokens.pop_ident_expecting("primitive type"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 207 |         let arena = try_notfirst!(tokens.pop_ident_expecting("arena after `<-`"));
[INFO] [stderr]     |                     ------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:219:16
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let name = try!(tokens.pop_ident_expecting("singleton"));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:227:16
[INFO] [stderr]     |
[INFO] [stderr] 227 |     let name = try!(tokens.pop_ident_expecting("parameter name"));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 229 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::Colon, "colon after parameter name"));
[INFO] [stderr]     |     ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 231 |     let var_type = try_notfirst!(ast::VarType::parse(tokens));
[INFO] [stderr]     |                    ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     try!(tokens.pop_word_expecting(WordToken::Fn, "`fn`"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 242 |     let name = try_notfirst!(tokens.pop_ident_expecting("function name"));
[INFO] [stderr]     |                ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 244 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::LeftParen, "`(`, followed by function parameters"));
[INFO] [stderr]     |     --------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 246 |     let parameters = try_notfirst!(DelimitedStarRule::<ast::FunctionParameter, Comma>::parse(tokens));
[INFO] [stderr]     |                      -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 248 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightParen, "`,` or `)`"));
[INFO] [stderr]     |     -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 251 |         try_notfirst!(DelimitedPlusRule::<ast::Singleton, Comma>::parse(tokens)).into()
[INFO] [stderr]     |         ------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 256 |     let block = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                 ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     try!(tokens.pop_punct_expecting(PunctToken::LeftBrace, "`{`"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |     while let Some(statement) = try!(ast::Statement::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 318 |         try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightBrace, "statement, expression or `}`"));
[INFO] [stderr]     |         -------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |     let idents = try!(DelimitedPlusRule::<Identifier, Dot>::parse(tokens));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 337 |         let name = try_notfirst!(tokens.pop_ident_expecting("variable name"));
[INFO] [stderr]     |                    ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 339 |         try_notfirst!(tokens.pop_punct_expecting(PunctToken::Colon, "`:` followed by variable type"));
[INFO] [stderr]     |         ---------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 341 |         let vartype = try_notfirst!(ast::VarType::parse(tokens));
[INFO] [stderr]     |                       ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 344 |             Some(try_notfirst!(ast::Expression::parse(tokens)))
[INFO] [stderr]     |                  --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 355 |         let singleton_value = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                               --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 357 |         let block = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                     ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 364 |         let expr = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                    --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:370:47
[INFO] [stderr]     |
[INFO] [stderr] 370 |         let assignment = if let Some(paths) = try!(DelimitedPlusRule::<ast::Path, Comma>::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:382:33
[INFO] [stderr]     |
[INFO] [stderr] 382 |             if let Some(expr) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:394:33
[INFO] [stderr]     |
[INFO] [stderr] 394 |             if let Some(expr) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:431:24
[INFO] [stderr]     |
[INFO] [stderr] 431 |         let mut expr = try!(ast::Expression::parse_beginning(tokens));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 435 |         while let Some(binary_op) = try_notfirst!(ast::BinaryOp::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                     ----------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |                 let rhs = try_notfirst!(ast::Expression::parse_precedence(tokens, q));
[INFO] [stderr]     |                           ----------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:465:47
[INFO] [stderr]     |
[INFO] [stderr] 465 |             if let Some(encased_expression) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:466:17
[INFO] [stderr]     |
[INFO] [stderr] 466 |                 try!(tokens.pop_punct_expecting(PunctToken::RightParen, "`)` after expression"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:471:36
[INFO] [stderr]     |
[INFO] [stderr] 471 |         } else if let Some(path) = try!(ast::Path::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |                 let arguments = try_notfirst!(DelimitedStarRule::<ast::Expression, Comma>::parse(tokens));
[INFO] [stderr]     |                                 ------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 476 |                 try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightParen, "`)` after function arguments"));
[INFO] [stderr]     |                 -------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:487:35
[INFO] [stderr]     |
[INFO] [stderr] 487 |         } else if let Some(if_) = try!(ast::If::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:496:5
[INFO] [stderr]     |
[INFO] [stderr] 496 |     try!(tokens.pop_word_expecting(WordToken::If, "if"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 498 |     let predicate = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 500 |     let on_true = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                   ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 503 |         Some(try_notfirst!(ast::BlockOrIf::parse(tokens)))
[INFO] [stderr]     |              -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:516:26
[INFO] [stderr]     |
[INFO] [stderr] 516 |     if let Some(block) = try!(ast::Block::parse_lookahead(tokens)) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:518:31
[INFO] [stderr]     |
[INFO] [stderr] 518 |     } else if let Some(if_) = try!(ast::If::parse_lookahead(tokens)) {
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/mod.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let tokens = try!(lexer.feed(input.chars()));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/mod.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let module = try!(parser::parse(&tokens));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:20:36
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]    |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:24
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:36
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:48
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vecplus::VecPlus`
[INFO] [stderr]  --> src/syntax/lexer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use vecplus::VecPlus;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:275:16
[INFO] [stderr]     |
[INFO] [stderr] 275 |             'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:275:28
[INFO] [stderr]     |
[INFO] [stderr] 275 |             'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:280:16
[INFO] [stderr]     |
[INFO] [stderr] 280 |             '0'...'9' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:16
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:28
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:40
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:20
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:32
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:44
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:355:20
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 '0'...'9' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: associated type defaults are unstable
[INFO] [stderr]   --> src/syntax/parser/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     type Output: Sized = Self;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29661 <https://github.com/rust-lang/rust/issues/29661> for more information
[INFO] [stderr]    = help: add `#![feature(associated_type_defaults)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:149:36
[INFO] [stderr]     |
[INFO] [stderr] 149 |                           let tail = try!(match_punct(remainder, remainder_loc));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] ...
[INFO] [stderr] 176 | / gen_punct! {
[INFO] [stderr] 177 | |     "->" => OutArrow,
[INFO] [stderr] 178 | |     "=>" => FatArrow,
[INFO] [stderr] 179 | |     "<-" => InArrow,
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |     "--" => DoubleMinus
[INFO] [stderr] 212 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:377:21
[INFO] [stderr]     |
[INFO] [stderr] 377 |             let l = try!(match_punct(&buf, self.buffer_beginning_loc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:428:21
[INFO] [stderr]     |
[INFO] [stderr] 428 |         let lexer = try!(self.feed_character('\n', loc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:468:37
[INFO] [stderr]     |
[INFO] [stderr] 468 | ...                   lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:472:29
[INFO] [stderr]     |
[INFO] [stderr] 472 |                     lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/lexer.rs:475:25
[INFO] [stderr]     |
[INFO] [stderr] 475 |                 lexer = try!(lexer.feed_character(c, loc));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/parser/mod.rs:88:30
[INFO] [stderr]    |
[INFO] [stderr] 88 |         if let Some(value) = try!(R::parse_lookahead(tokens)) {
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         try!(rule_result_not_first($r))
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 92 |                 let value = try_notfirst!(R::parse(tokens));
[INFO] [stderr]    |                             ------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:110:21
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let value = try!(R::parse(tokens));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |             let value = try_notfirst!(R::parse(tokens));
[INFO] [stderr]     |                         ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:147:33
[INFO] [stderr]     |
[INFO] [stderr] 147 |         while let Some(value) = try!(R::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let items = try!(SeriesRule::<ast::ModuleItem>::parse(tokens));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 184 |         (true, try_notfirst!(ast::ModuleItemType::parse(tokens)))
[INFO] [stderr]     |                ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 186 |         (false, try!(ast::ModuleItemType::parse(tokens)))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:196:29
[INFO] [stderr]     |
[INFO] [stderr] 196 |     if let Some(function) = try!(ast::Function::parse_lookahead(tokens)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:204:21
[INFO] [stderr]     |
[INFO] [stderr] 204 |     let primitive = try!(tokens.pop_ident_expecting("primitive type"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 207 |         let arena = try_notfirst!(tokens.pop_ident_expecting("arena after `<-`"));
[INFO] [stderr]     |                     ------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:219:16
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let name = try!(tokens.pop_ident_expecting("singleton"));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:227:16
[INFO] [stderr]     |
[INFO] [stderr] 227 |     let name = try!(tokens.pop_ident_expecting("parameter name"));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 229 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::Colon, "colon after parameter name"));
[INFO] [stderr]     |     ------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 231 |     let var_type = try_notfirst!(ast::VarType::parse(tokens));
[INFO] [stderr]     |                    ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     try!(tokens.pop_word_expecting(WordToken::Fn, "`fn`"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 242 |     let name = try_notfirst!(tokens.pop_ident_expecting("function name"));
[INFO] [stderr]     |                ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 244 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::LeftParen, "`(`, followed by function parameters"));
[INFO] [stderr]     |     --------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 246 |     let parameters = try_notfirst!(DelimitedStarRule::<ast::FunctionParameter, Comma>::parse(tokens));
[INFO] [stderr]     |                      -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 248 |     try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightParen, "`,` or `)`"));
[INFO] [stderr]     |     -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 251 |         try_notfirst!(DelimitedPlusRule::<ast::Singleton, Comma>::parse(tokens)).into()
[INFO] [stderr]     |         ------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 256 |     let block = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                 ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     try!(tokens.pop_punct_expecting(PunctToken::LeftBrace, "`{`"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |     while let Some(statement) = try!(ast::Statement::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 318 |         try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightBrace, "statement, expression or `}`"));
[INFO] [stderr]     |         -------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |     let idents = try!(DelimitedPlusRule::<Identifier, Dot>::parse(tokens));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 337 |         let name = try_notfirst!(tokens.pop_ident_expecting("variable name"));
[INFO] [stderr]     |                    ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 339 |         try_notfirst!(tokens.pop_punct_expecting(PunctToken::Colon, "`:` followed by variable type"));
[INFO] [stderr]     |         ---------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 341 |         let vartype = try_notfirst!(ast::VarType::parse(tokens));
[INFO] [stderr]     |                       ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 344 |             Some(try_notfirst!(ast::Expression::parse(tokens)))
[INFO] [stderr]     |                  --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 355 |         let singleton_value = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                               --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 357 |         let block = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                     ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 364 |         let expr = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                    --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:370:47
[INFO] [stderr]     |
[INFO] [stderr] 370 |         let assignment = if let Some(paths) = try!(DelimitedPlusRule::<ast::Path, Comma>::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:382:33
[INFO] [stderr]     |
[INFO] [stderr] 382 |             if let Some(expr) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:394:33
[INFO] [stderr]     |
[INFO] [stderr] 394 |             if let Some(expr) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:431:24
[INFO] [stderr]     |
[INFO] [stderr] 431 |         let mut expr = try!(ast::Expression::parse_beginning(tokens));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 435 |         while let Some(binary_op) = try_notfirst!(ast::BinaryOp::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                     ----------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |                 let rhs = try_notfirst!(ast::Expression::parse_precedence(tokens, q));
[INFO] [stderr]     |                           ----------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:465:47
[INFO] [stderr]     |
[INFO] [stderr] 465 |             if let Some(encased_expression) = try!(ast::Expression::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:466:17
[INFO] [stderr]     |
[INFO] [stderr] 466 |                 try!(tokens.pop_punct_expecting(PunctToken::RightParen, "`)` after expression"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:471:36
[INFO] [stderr]     |
[INFO] [stderr] 471 |         } else if let Some(path) = try!(ast::Path::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |                 let arguments = try_notfirst!(DelimitedStarRule::<ast::Expression, Comma>::parse(tokens));
[INFO] [stderr]     |                                 ------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 476 |                 try_notfirst!(tokens.pop_punct_expecting(PunctToken::RightParen, "`)` after function arguments"));
[INFO] [stderr]     |                 -------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:487:35
[INFO] [stderr]     |
[INFO] [stderr] 487 |         } else if let Some(if_) = try!(ast::If::parse_lookahead(tokens)) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:496:5
[INFO] [stderr]     |
[INFO] [stderr] 496 |     try!(tokens.pop_word_expecting(WordToken::If, "if"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 498 |     let predicate = try_notfirst!(ast::Expression::parse(tokens));
[INFO] [stderr]     |                     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 500 |     let on_true = try_notfirst!(ast::Block::parse(tokens));
[INFO] [stderr]     |                   ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:75:9
[INFO] [stderr]     |
[INFO] [stderr] 75  |         try!(rule_result_not_first($r))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 503 |         Some(try_notfirst!(ast::BlockOrIf::parse(tokens)))
[INFO] [stderr]     |              -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:516:26
[INFO] [stderr]     |
[INFO] [stderr] 516 |     if let Some(block) = try!(ast::Block::parse_lookahead(tokens)) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/syntax/parser/mod.rs:518:31
[INFO] [stderr]     |
[INFO] [stderr] 518 |     } else if let Some(if_) = try!(ast::If::parse_lookahead(tokens)) {
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/mod.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let tokens = try!(lexer.feed(input.chars()));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/syntax/mod.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let module = try!(parser::parse(&tokens));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:20:36
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]    |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:24
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:36
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/identifier.rs:25:48
[INFO] [stderr]    |
[INFO] [stderr] 25 |                     'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => true,
[INFO] [stderr]    |                                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vecplus::VecPlus`
[INFO] [stderr]  --> src/syntax/lexer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use vecplus::VecPlus;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:275:16
[INFO] [stderr]     |
[INFO] [stderr] 275 |             'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:275:28
[INFO] [stderr]     |
[INFO] [stderr] 275 |             'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:280:16
[INFO] [stderr]     |
[INFO] [stderr] 280 |             '0'...'9' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:16
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:28
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:303:40
[INFO] [stderr]     |
[INFO] [stderr] 303 |             'a'...'z' | 'A'...'Z' | '0'...'9' | '_' => {
[INFO] [stderr]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:20
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:32
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:332:44
[INFO] [stderr]     |
[INFO] [stderr] 332 |                 '0'...'9' | 'a'...'f' | 'A'...'F' => {
[INFO] [stderr]     |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/syntax/lexer.rs:355:20
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 '0'...'9' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]    --> src/modulefs.rs:8:48
[INFO] [stderr]     |
[INFO] [stderr] 8   |     fn open_module(self, name: &Identifier) -> Result<Self, Self::ModuleError>;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: consider further restricting `Self`: `where Self: std::marker::Sized`
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 75 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `fn65`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]    --> src/modulefs.rs:8:48
[INFO] [stderr]     |
[INFO] [stderr] 8   |     fn open_module(self, name: &Identifier) -> Result<Self, Self::ModuleError>;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: consider further restricting `Self`: `where Self: std::marker::Sized`
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 75 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `fn65`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "42f817669b836d263a7d41f4320c67991fa1a42a398e7d31765ee2200a1018b5"`
[INFO] running `"docker" "rm" "-f" "42f817669b836d263a7d41f4320c67991fa1a42a398e7d31765ee2200a1018b5"`
[INFO] [stdout] 42f817669b836d263a7d41f4320c67991fa1a42a398e7d31765ee2200a1018b5