[INFO] cloning repository https://github.com/marcianx/parse-math
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcianx/parse-math" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcianx%2Fparse-math"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcianx%2Fparse-math'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0641735325b5d5ad4a15d758a62988ed60717716
[INFO] checking marcianx/parse-math against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcianx%2Fparse-math" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcianx/parse-math 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/marcianx/parse-math
[INFO] finished tweaking git repo https://github.com/marcianx/parse-math
[INFO] tweaked toml for git repo https://github.com/marcianx/parse-math written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/marcianx/parse-math 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] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1484e434b7c6b363d5096eb7d82a9b884e0c4d3172837e55324a2331114f531d
[INFO] running `"docker" "start" "-a" "1484e434b7c6b363d5096eb7d82a9b884e0c4d3172837e55324a2331114f531d"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking parse-math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         try!(f.write_fmt(format_args!("{:3}:{:width$} ", self.0.pos, "", width=indent)));
[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/ast.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 try!(f.write_fmt(format_args!("{}()\n", s)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 try!(f.write_fmt(format_args!("{}\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 try!(arg1.as_tree().format(f, indent + INDENT));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 try!(f.write_fmt(format_args!("{} (prefix)\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 try!(f.write_fmt(format_args!("{} (postfix)\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 try!(Display::fmt("()\n", f));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lexer.rs:108:45
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let token = Token { typ: Number(try!(FromStr::from_str(&self.text[..n]))), pos: self.pos };
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         try!(self.parse_e());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         try!(self.expect(TokenType::End));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |         self.next = try!(self.lexer.next_token());
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             try!(self.consume());
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.parse_p());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 try!(self.consume());
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:100:17
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 try!(self.parse_p());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     let t = try!(self.parse_parens(pos));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:135:25
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let t = try!(self.parse_parens(pos));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:141:21
[INFO] [stderr]     |
[INFO] [stderr] 141 |                     try!(self.consume());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     try!(self.parse_p());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |         try!(self.consume());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         try!(self.parse_e());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         try!(self.expect(TokenType::OpSingle(')')));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:206:16
[INFO] [stderr]     |
[INFO] [stderr] 206 |     let next = try!(lexer.next_token());
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         error::Error::description(self).fmt(f)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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/ast.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         try!(f.write_fmt(format_args!("{:3}:{:width$} ", self.0.pos, "", width=indent)));
[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/ast.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 try!(f.write_fmt(format_args!("{}()\n", s)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 try!(f.write_fmt(format_args!("{}\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 try!(arg1.as_tree().format(f, indent + INDENT));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 try!(f.write_fmt(format_args!("{} (prefix)\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 try!(f.write_fmt(format_args!("{} (postfix)\n", ch)));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 try!(Display::fmt("()\n", f));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lexer.rs:108:45
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let token = Token { typ: Number(try!(FromStr::from_str(&self.text[..n]))), pos: self.pos };
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         try!(self.parse_e());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         try!(self.expect(TokenType::End));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |         self.next = try!(self.lexer.next_token());
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             try!(self.consume());
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(self.parse_p());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shuntingyard.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 try!(self.consume());
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:100:17
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 try!(self.parse_p());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 try!(self.consume());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     let t = try!(self.parse_parens(pos));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:135:25
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let t = try!(self.parse_parens(pos));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:141:21
[INFO] [stderr]     |
[INFO] [stderr] 141 |                     try!(self.consume());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     try!(self.parse_p());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |         try!(self.consume());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         try!(self.parse_e());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         try!(self.expect(TokenType::OpSingle(')')));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/shuntingyard.rs:206:16
[INFO] [stderr]     |
[INFO] [stderr] 206 |     let next = try!(lexer.next_token());
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         error::Error::description(self).fmt(f)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/lexer.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     static ref REGEX_NUMBER: Regex = Regex::new(r"^[+-]?\d+(?:\.\d*)?(?:[eE]\d+)?").unwrap();
[INFO] [stderr] 13 | |     static ref REGEX_IDENT:  Regex = Regex::new(r"^[a-zA-Z]+").unwrap();
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:24:46
[INFO] [stderr]    |
[INFO] [stderr] 24 |           &ParseError::Float(ref err) => err.description(),
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lexer.rs:76:34
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 msg.push_str(err.description());
[INFO] [stderr]    |                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:24:46
[INFO] [stderr]    |
[INFO] [stderr] 24 |           &ParseError::Float(ref err) => err.description(),
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lexer.rs:76:34
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 msg.push_str(err.description());
[INFO] [stderr]    |                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.65s
[INFO] running `"docker" "inspect" "1484e434b7c6b363d5096eb7d82a9b884e0c4d3172837e55324a2331114f531d"`
[INFO] running `"docker" "rm" "-f" "1484e434b7c6b363d5096eb7d82a9b884e0c4d3172837e55324a2331114f531d"`
[INFO] [stdout] 1484e434b7c6b363d5096eb7d82a9b884e0c4d3172837e55324a2331114f531d