[INFO] updating cached repository https://github.com/yberreby/rulis
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d8e7b59372211936d392daf2ce4a2f26bdf442d
[INFO] testing yberreby/rulis against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyberreby%2Frulis" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yberreby/rulis on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yberreby/rulis
[INFO] finished tweaking git repo https://github.com/yberreby/rulis
[INFO] tweaked toml for git repo https://github.com/yberreby/rulis written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/yberreby/rulis already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f827754cf8be9a3cab3182be36bcb8db6bc4cafc373933ec22b99254be5dfd94
[INFO] running `"docker" "start" "-a" "f827754cf8be9a3cab3182be36bcb8db6bc4cafc373933ec22b99254be5dfd94"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling psm v0.1.6
[INFO] [stderr]    Compiling stacker v0.1.6
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling rulis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     try!(write!(f, "unexpected end of input"));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                         try!(write!(f, ", "));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         try!(print_expected(f, &expected));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(print_expected(f, &expected));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     try!(write!(f, "expected "));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         try!(write!(f, "one of "));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             try!(write!(f, "\"{:?}\"{}", tk, sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(write!(f, "\"{:?}\" ", expected[0]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut parser = try!(Parser::new(tokens.into_iter().map(|tas| tas.token))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let first_tok = try!(it.next().ok_or_else(|| {
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         try!(self.eat(TKind::LParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let expr = try!(self.parse_expr());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.eat(TKind::RParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(self.eat(TKind::LBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:105:24
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let expr = try!(self.parse_expr());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         try!(self.eat(TKind::RBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 |             k if k.can_start_atom() => try!(self.parse_atom()),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |             TKind::LParen => Expr::SExpr(try!(self.parse_sexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:118:42
[INFO] [stderr]     |
[INFO] [stderr] 118 |             TKind::LBrace => Expr::QExpr(try!(self.parse_qexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:130:21
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let i = try!(self.parse_int_lit()).to_i64().unwrap();
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:157:20
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 Ok(try!(self.interpret_int(&value[..], 10, "decimal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 Ok(try!(self.interpret_int(&value[1..], 8, "octal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Ok(try!(self.interpret_int(&value[2..], 16, "hex literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(write!(f, "("));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(write!(f, ")"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(write!(f, r"{{"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(f, r"}}"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut numeric_arguments = try!(numeric_arguments_res).into_iter();
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let first_argument: i64 = try!(numeric_arguments.next()
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/interpreter/builtins.rs:212:26
[INFO] [stderr]     |
[INFO] [stderr] 212 |             let lambda = try!(Lambda::new(params, body, env_ptr.clone()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let expr = try!(::parser::parse(s));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 return Ok(try!(eval_expr(env_ptr, sexpr[0].clone())));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |             *operand = try!(eval_expr(env_ptr.clone(), operand.clone())); // XXX: avoid cloning operand
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:64:23
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let val = try!(env_ptr.get(&*symbol)
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let expr = try!(parser::parse(s).map_err(|e| format!("{}", e)));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let res = try!(interpreter.evaluate_expression(expr));
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.29s
[INFO] running `"docker" "inspect" "f827754cf8be9a3cab3182be36bcb8db6bc4cafc373933ec22b99254be5dfd94"`
[INFO] running `"docker" "rm" "-f" "f827754cf8be9a3cab3182be36bcb8db6bc4cafc373933ec22b99254be5dfd94"`
[INFO] [stdout] f827754cf8be9a3cab3182be36bcb8db6bc4cafc373933ec22b99254be5dfd94
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b9dc7a2f27bded8ae329c7b6324a7633da6ae174df14830082b6a1649ca812e
[INFO] running `"docker" "start" "-a" "2b9dc7a2f27bded8ae329c7b6324a7633da6ae174df14830082b6a1649ca812e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rulis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     try!(write!(f, "unexpected end of input"));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                         try!(write!(f, ", "));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         try!(print_expected(f, &expected));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(print_expected(f, &expected));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     try!(write!(f, "expected "));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         try!(write!(f, "one of "));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             try!(write!(f, "\"{:?}\"{}", tk, sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(write!(f, "\"{:?}\" ", expected[0]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut parser = try!(Parser::new(tokens.into_iter().map(|tas| tas.token))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let first_tok = try!(it.next().ok_or_else(|| {
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         try!(self.eat(TKind::LParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let expr = try!(self.parse_expr());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.eat(TKind::RParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(self.eat(TKind::LBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:105:24
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let expr = try!(self.parse_expr());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         try!(self.eat(TKind::RBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 |             k if k.can_start_atom() => try!(self.parse_atom()),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |             TKind::LParen => Expr::SExpr(try!(self.parse_sexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:118:42
[INFO] [stderr]     |
[INFO] [stderr] 118 |             TKind::LBrace => Expr::QExpr(try!(self.parse_qexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:130:21
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let i = try!(self.parse_int_lit()).to_i64().unwrap();
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:157:20
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 Ok(try!(self.interpret_int(&value[..], 10, "decimal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 Ok(try!(self.interpret_int(&value[1..], 8, "octal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Ok(try!(self.interpret_int(&value[2..], 16, "hex literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(write!(f, "("));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(write!(f, ")"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(write!(f, r"{{"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(f, r"}}"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut numeric_arguments = try!(numeric_arguments_res).into_iter();
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let first_argument: i64 = try!(numeric_arguments.next()
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/interpreter/builtins.rs:212:26
[INFO] [stderr]     |
[INFO] [stderr] 212 |             let lambda = try!(Lambda::new(params, body, env_ptr.clone()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let expr = try!(::parser::parse(s));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 return Ok(try!(eval_expr(env_ptr, sexpr[0].clone())));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |             *operand = try!(eval_expr(env_ptr.clone(), operand.clone())); // XXX: avoid cloning operand
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:64:23
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let val = try!(env_ptr.get(&*symbol)
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let expr = try!(parser::parse(s).map_err(|e| format!("{}", e)));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let res = try!(interpreter.evaluate_expression(expr));
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     try!(write!(f, "unexpected end of input"));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                         try!(write!(f, ", "));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         try!(print_expected(f, &expected));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(print_expected(f, &expected));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     try!(write!(f, "expected "));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         try!(write!(f, "one of "));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             try!(write!(f, "\"{:?}\"{}", tk, sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(write!(f, "\"{:?}\" ", expected[0]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut parser = try!(Parser::new(tokens.into_iter().map(|tas| tas.token))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let first_tok = try!(it.next().ok_or_else(|| {
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         try!(self.eat(TKind::LParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let expr = try!(self.parse_expr());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.eat(TKind::RParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(self.eat(TKind::LBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:105:24
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let expr = try!(self.parse_expr());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         try!(self.eat(TKind::RBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 |             k if k.can_start_atom() => try!(self.parse_atom()),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |             TKind::LParen => Expr::SExpr(try!(self.parse_sexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:118:42
[INFO] [stderr]     |
[INFO] [stderr] 118 |             TKind::LBrace => Expr::QExpr(try!(self.parse_qexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:130:21
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let i = try!(self.parse_int_lit()).to_i64().unwrap();
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:157:20
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 Ok(try!(self.interpret_int(&value[..], 10, "decimal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 Ok(try!(self.interpret_int(&value[1..], 8, "octal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Ok(try!(self.interpret_int(&value[2..], 16, "hex literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(write!(f, "("));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(write!(f, ")"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(write!(f, r"{{"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(f, r"}}"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut numeric_arguments = try!(numeric_arguments_res).into_iter();
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let first_argument: i64 = try!(numeric_arguments.next()
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/interpreter/builtins.rs:212:26
[INFO] [stderr]     |
[INFO] [stderr] 212 |             let lambda = try!(Lambda::new(params, body, env_ptr.clone()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let expr = try!(::parser::parse(s));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 return Ok(try!(eval_expr(env_ptr, sexpr[0].clone())));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |             *operand = try!(eval_expr(env_ptr.clone(), operand.clone())); // XXX: avoid cloning operand
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:64:23
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let val = try!(env_ptr.get(&*symbol)
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let expr = try!(parser::parse(s).map_err(|e| format!("{}", e)));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let res = try!(interpreter.evaluate_expression(expr));
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `"docker" "inspect" "2b9dc7a2f27bded8ae329c7b6324a7633da6ae174df14830082b6a1649ca812e"`
[INFO] running `"docker" "rm" "-f" "2b9dc7a2f27bded8ae329c7b6324a7633da6ae174df14830082b6a1649ca812e"`
[INFO] [stdout] 2b9dc7a2f27bded8ae329c7b6324a7633da6ae174df14830082b6a1649ca812e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ec1dbb2fb5816354e03209eb8db30d0067c9342810e82d815dd722583d7e9e1
[INFO] running `"docker" "start" "-a" "4ec1dbb2fb5816354e03209eb8db30d0067c9342810e82d815dd722583d7e9e1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     try!(write!(f, "unexpected end of input"));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                         try!(write!(f, ", "));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         try!(print_expected(f, &expected));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(print_expected(f, &expected));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     try!(write!(f, "expected "));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         try!(write!(f, "one of "));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             try!(write!(f, "\"{:?}\"{}", tk, sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(write!(f, "\"{:?}\" ", expected[0]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut parser = try!(Parser::new(tokens.into_iter().map(|tas| tas.token))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let first_tok = try!(it.next().ok_or_else(|| {
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         try!(self.eat(TKind::LParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let expr = try!(self.parse_expr());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.eat(TKind::RParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(self.eat(TKind::LBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:105:24
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let expr = try!(self.parse_expr());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         try!(self.eat(TKind::RBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 |             k if k.can_start_atom() => try!(self.parse_atom()),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |             TKind::LParen => Expr::SExpr(try!(self.parse_sexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:118:42
[INFO] [stderr]     |
[INFO] [stderr] 118 |             TKind::LBrace => Expr::QExpr(try!(self.parse_qexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:130:21
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let i = try!(self.parse_int_lit()).to_i64().unwrap();
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:157:20
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 Ok(try!(self.interpret_int(&value[..], 10, "decimal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 Ok(try!(self.interpret_int(&value[1..], 8, "octal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Ok(try!(self.interpret_int(&value[2..], 16, "hex literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(write!(f, "("));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(write!(f, ")"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(write!(f, r"{{"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(f, r"}}"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut numeric_arguments = try!(numeric_arguments_res).into_iter();
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let first_argument: i64 = try!(numeric_arguments.next()
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/interpreter/builtins.rs:212:26
[INFO] [stderr]     |
[INFO] [stderr] 212 |             let lambda = try!(Lambda::new(params, body, env_ptr.clone()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let expr = try!(::parser::parse(s));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 return Ok(try!(eval_expr(env_ptr, sexpr[0].clone())));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |             *operand = try!(eval_expr(env_ptr.clone(), operand.clone())); // XXX: avoid cloning operand
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:64:23
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let val = try!(env_ptr.get(&*symbol)
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let expr = try!(parser::parse(s).map_err(|e| format!("{}", e)));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let res = try!(interpreter.evaluate_expression(expr));
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     try!(write!(f, "unexpected end of input"));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                         try!(write!(f, ", "));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         try!(print_expected(f, &expected));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(print_expected(f, &expected));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     try!(write!(f, "expected "));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         try!(write!(f, "one of "));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             try!(write!(f, "\"{:?}\"{}", tk, sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/error.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(write!(f, "\"{:?}\" ", expected[0]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut parser = try!(Parser::new(tokens.into_iter().map(|tas| tas.token))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let first_tok = try!(it.next().ok_or_else(|| {
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         try!(self.eat(TKind::LParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let expr = try!(self.parse_expr());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/mod.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.eat(TKind::RParen));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(self.eat(TKind::LBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:105:24
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let expr = try!(self.parse_expr());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         try!(self.eat(TKind::RBrace));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:116:40
[INFO] [stderr]     |
[INFO] [stderr] 116 |             k if k.can_start_atom() => try!(self.parse_atom()),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |             TKind::LParen => Expr::SExpr(try!(self.parse_sexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:118:42
[INFO] [stderr]     |
[INFO] [stderr] 118 |             TKind::LBrace => Expr::QExpr(try!(self.parse_qexpr())),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:130:21
[INFO] [stderr]     |
[INFO] [stderr] 130 |             let i = try!(self.parse_int_lit()).to_i64().unwrap();
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:157:20
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 Ok(try!(self.interpret_int(&value[..], 10, "decimal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 Ok(try!(self.interpret_int(&value[1..], 8, "octal literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/mod.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 Ok(try!(self.interpret_int(&value[2..], 16, "hex literal")))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         try!(write!(f, "("));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/sexpr.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         try!(write!(f, ")"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(write!(f, r"{{"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(write!(f, "{}{}", separator_prefix, expr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value/qexpr.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(f, r"}}"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut numeric_arguments = try!(numeric_arguments_res).into_iter();
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/builtins.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let first_argument: i64 = try!(numeric_arguments.next()
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/interpreter/builtins.rs:212:26
[INFO] [stderr]     |
[INFO] [stderr] 212 |             let lambda = try!(Lambda::new(params, body, env_ptr.clone()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let expr = try!(::parser::parse(s));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 return Ok(try!(eval_expr(env_ptr, sexpr[0].clone())));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |             *operand = try!(eval_expr(env_ptr.clone(), operand.clone())); // XXX: avoid cloning operand
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/interpreter/mod.rs:64:23
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let val = try!(env_ptr.get(&*symbol)
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let expr = try!(parser::parse(s).map_err(|e| format!("{}", e)));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let res = try!(interpreter.evaluate_expression(expr));
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rulis-ed9ae341d852b08e
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::fun_works ... ok
[INFO] [stdout] test test::negative_num_literals_work ... ok
[INFO] [stdout] test test::lambdas_work ... ok
[INFO] [stdout] test test::comparison_operators_work ... ok
[INFO] [stdout] test test::incorrect_code_is_rejected_and_doesnt_cause_panics ... ok
[INFO] [stdout] test test::conditionals_work ... ok
[INFO] [stdout] test test::qexpressions_builtins_work ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rulis-d028313d01bd6137
[INFO] [stdout] test test::recursion_works ... ok
[INFO] [stdout] test test::simple_arithmetic_evaluation_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rulis
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4ec1dbb2fb5816354e03209eb8db30d0067c9342810e82d815dd722583d7e9e1"`
[INFO] running `"docker" "rm" "-f" "4ec1dbb2fb5816354e03209eb8db30d0067c9342810e82d815dd722583d7e9e1"`
[INFO] [stdout] 4ec1dbb2fb5816354e03209eb8db30d0067c9342810e82d815dd722583d7e9e1