[INFO] fetching crate meval 0.2.0...
[INFO] testing meval-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate meval 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate meval 0.2.0 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 crates.io crate meval 0.2.0
[INFO] finished tweaking crates.io crate meval 0.2.0
[INFO] tweaked toml for crates.io crate meval 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e9a4fdb1f7edf820533d2aa70ca7362a70a50564b3e569258b650138e48b536a
[INFO] running `"docker" "start" "-a" "e9a4fdb1f7edf820533d2aa70ca7362a70a50564b3e569258b650138e48b536a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling meval v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(self.check_context(((var, 0.), &ctx)));
[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/expr.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         try!(self.check_context(([(var1, 0.), (var2, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.), (var4, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(self.check_context((
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         try!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:424:16
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:433:22
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let tokens = try!(tokenize(s));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:435:19
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let rpn = try!(to_rpn(&tokens));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |                 try!(write!(f, "Parse error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 try!(write!(f, "RPN error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tokenizer.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | /// Parse `func(`, returns `func`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:832:27
[INFO] [stderr]     |
[INFO] [stderr] 832 | type GuardedFunc<'a> = Rc<Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Needed` is imported redundantly
[INFO] [stderr]    --> src/tokenizer.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 8   | use nom::{multispace, slice_to_offsets, IResult, Needed};
[INFO] [stderr]     |                                                  ------ the item `Needed` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 115 |     use nom::{ErrorKind, Needed};
[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/tokenizer.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[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/tokenizer.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[INFO] [stderr]     |                                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:39
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:60
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:266:32
[INFO] [stderr]     |
[INFO] [stderr] 266 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:261:43
[INFO] [stderr]     |
[INFO] [stderr] 261 |             Error::ParseError(ref e) => e.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/lib.rs:262:41
[INFO] [stderr]     |
[INFO] [stderr] 262 |             Error::RPNError(ref e) => e.description(),
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "e9a4fdb1f7edf820533d2aa70ca7362a70a50564b3e569258b650138e48b536a"`
[INFO] running `"docker" "rm" "-f" "e9a4fdb1f7edf820533d2aa70ca7362a70a50564b3e569258b650138e48b536a"`
[INFO] [stdout] e9a4fdb1f7edf820533d2aa70ca7362a70a50564b3e569258b650138e48b536a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 315ecc7bccb4ffa2e18633ef53941af47e0e6744ce2560b77a4339b08a4f3289
[INFO] running `"docker" "start" "-a" "315ecc7bccb4ffa2e18633ef53941af47e0e6744ce2560b77a4339b08a4f3289"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling gnuplot v0.0.23
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(self.check_context(((var, 0.), &ctx)));
[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/expr.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         try!(self.check_context(([(var1, 0.), (var2, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.), (var4, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(self.check_context((
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         try!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:424:16
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:433:22
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let tokens = try!(tokenize(s));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:435:19
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let rpn = try!(to_rpn(&tokens));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |                 try!(write!(f, "Parse error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 try!(write!(f, "RPN error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tokenizer.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | /// Parse `func(`, returns `func`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:832:27
[INFO] [stderr]     |
[INFO] [stderr] 832 | type GuardedFunc<'a> = Rc<Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Needed` is imported redundantly
[INFO] [stderr]    --> src/tokenizer.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 8   | use nom::{multispace, slice_to_offsets, IResult, Needed};
[INFO] [stderr]     |                                                  ------ the item `Needed` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 115 |     use nom::{ErrorKind, Needed};
[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/tokenizer.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[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/tokenizer.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[INFO] [stderr]     |                                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:39
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:60
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:266:32
[INFO] [stderr]     |
[INFO] [stderr] 266 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:261:43
[INFO] [stderr]     |
[INFO] [stderr] 261 |             Error::ParseError(ref e) => e.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/lib.rs:262:41
[INFO] [stderr]     |
[INFO] [stderr] 262 |             Error::RPNError(ref e) => e.description(),
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling serde_test v1.0.111
[INFO] [stderr]    Compiling meval v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(self.check_context(((var, 0.), &ctx)));
[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/expr.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         try!(self.check_context(([(var1, 0.), (var2, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.), (var4, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(self.check_context((
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         try!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:424:16
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:433:22
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let tokens = try!(tokenize(s));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:435:19
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let rpn = try!(to_rpn(&tokens));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |                 try!(write!(f, "Parse error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 try!(write!(f, "RPN error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tokenizer.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | /// Parse `func(`, returns `func`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:832:27
[INFO] [stderr]     |
[INFO] [stderr] 832 | type GuardedFunc<'a> = Rc<Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Needed` is imported redundantly
[INFO] [stderr]    --> src/tokenizer.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 8   | use nom::{multispace, slice_to_offsets, IResult, Needed};
[INFO] [stderr]     |                                                  ------ the item `Needed` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 115 |     use nom::{ErrorKind, Needed};
[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/tokenizer.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[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/tokenizer.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[INFO] [stderr]     |                                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:39
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:60
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:266:32
[INFO] [stderr]     |
[INFO] [stderr] 266 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:261:43
[INFO] [stderr]     |
[INFO] [stderr] 261 |             Error::ParseError(ref e) => e.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/lib.rs:262:41
[INFO] [stderr]     |
[INFO] [stderr] 262 |             Error::RPNError(ref e) => e.description(),
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.77s
[INFO] running `"docker" "inspect" "315ecc7bccb4ffa2e18633ef53941af47e0e6744ce2560b77a4339b08a4f3289"`
[INFO] running `"docker" "rm" "-f" "315ecc7bccb4ffa2e18633ef53941af47e0e6744ce2560b77a4339b08a4f3289"`
[INFO] [stdout] 315ecc7bccb4ffa2e18633ef53941af47e0e6744ce2560b77a4339b08a4f3289
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8975597d85637691c8896a023970e87715a713c1cb3fd9b972c0b36928cbfd8b
[INFO] running `"docker" "start" "-a" "8975597d85637691c8896a023970e87715a713c1cb3fd9b972c0b36928cbfd8b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(self.check_context(((var, 0.), &ctx)));
[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/expr.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         try!(self.check_context(([(var1, 0.), (var2, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.), (var4, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(self.check_context((
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         try!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:424:16
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:433:22
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let tokens = try!(tokenize(s));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:435:19
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let rpn = try!(to_rpn(&tokens));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |                 try!(write!(f, "Parse error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 try!(write!(f, "RPN error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tokenizer.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | /// Parse `func(`, returns `func`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:832:27
[INFO] [stderr]     |
[INFO] [stderr] 832 | type GuardedFunc<'a> = Rc<Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Needed` is imported redundantly
[INFO] [stderr]    --> src/tokenizer.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 8   | use nom::{multispace, slice_to_offsets, IResult, Needed};
[INFO] [stderr]     |                                                  ------ the item `Needed` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 115 |     use nom::{ErrorKind, Needed};
[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/tokenizer.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[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/tokenizer.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[INFO] [stderr]     |                                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:39
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:60
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:266:32
[INFO] [stderr]     |
[INFO] [stderr] 266 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:261:43
[INFO] [stderr]     |
[INFO] [stderr] 261 |             Error::ParseError(ref e) => e.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/lib.rs:262:41
[INFO] [stderr]     |
[INFO] [stderr] 262 |             Error::RPNError(ref e) => e.description(),
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(self.check_context(((var, 0.), &ctx)));
[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/expr.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         try!(self.check_context(([(var1, 0.), (var2, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.check_context(([(var1, 0.), (var2, 0.), (var3, 0.), (var4, 0.)], &ctx)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(self.check_context((
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         try!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:424:16
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:433:22
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let tokens = try!(tokenize(s));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:435:19
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let rpn = try!(to_rpn(&tokens));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/expr.rs:448:16
[INFO] [stderr]     |
[INFO] [stderr] 448 |     let expr = try!(Expr::from_str(expr.as_ref()));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |                 try!(write!(f, "Parse error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 try!(write!(f, "RPN error: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tokenizer.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | /// Parse `func(`, returns `func`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:832:27
[INFO] [stderr]     |
[INFO] [stderr] 832 | type GuardedFunc<'a> = Rc<Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64]) -> Result<f64, FuncEvalError> + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Needed` is imported redundantly
[INFO] [stderr]    --> src/tokenizer.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 8   | use nom::{multispace, slice_to_offsets, IResult, Needed};
[INFO] [stderr]     |                                                  ------ the item `Needed` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 115 |     use nom::{ErrorKind, Needed};
[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/tokenizer.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[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/tokenizer.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |         Some(b'a'...b'z') | Some(b'A'...b'Z') | Some(b'_') => {
[INFO] [stderr]     |                                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:39
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:124:60
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     b'a'...b'z' | b'A'...b'Z' | b'_' | b'0'...b'9' => true,
[INFO] [stderr]     |                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:266:32
[INFO] [stderr]     |
[INFO] [stderr] 266 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:261:43
[INFO] [stderr]     |
[INFO] [stderr] 261 |             Error::ParseError(ref e) => e.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/lib.rs:262:41
[INFO] [stderr]     |
[INFO] [stderr] 262 |             Error::RPNError(ref e) => e.description(),
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/meval-1c4437c89210e810
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test expr::tests::hash_context ... ok
[INFO] [stdout] test expr::tests::test_eval_func_ctx ... ok
[INFO] [stdout] test shunting_yard::tests::test_to_rpn ... ok
[INFO] [stdout] test tokenizer::tests::it_works ... ok
[INFO] [stdout] test tokenizer::tests::test_func ... ok
[INFO] [stdout] test expr::tests::test_bind ... ok
[INFO] [stdout] test expr::tests::test_eval ... ok
[INFO] [stdout] test expr::tests::test_builtins ... ok
[INFO] [stdout] test tokenizer::tests::test_number ... ok
[INFO] [stdout] test tokenizer::tests::test_tokenize ... ok
[INFO] [stdout] test tokenizer::tests::test_var ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests meval
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs -  (line 131) ... ignored
[INFO] [stdout] test src/expr.rs - expr::ArgGuard (line 839) ... ok
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] test src/expr.rs - expr::Expr (line 23) ... ok
[INFO] [stdout] test src/expr.rs - expr::Context::funcn (line 806) ... ok
[INFO] [stdout] test src/expr.rs - expr::ContextProvider (line 491) ... ok
[INFO] [stdout] test src/expr.rs - expr::Context (line 673) ... ok
[INFO] [stdout] test src/lib.rs -  (line 57) ... ok
[INFO] [stdout] test src/lib.rs -  (line 29) ... ok
[INFO] [stdout] test src/expr.rs - expr::ContextProvider (line 502) ... ok
[INFO] [stdout] test src/lib.rs -  (line 42) ... ok
[INFO] [stdout] test src/expr.rs - expr::ContextProvider (line 471) ... ok
[INFO] [stdout] test src/lib.rs -  (line 79) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8975597d85637691c8896a023970e87715a713c1cb3fd9b972c0b36928cbfd8b"`
[INFO] running `"docker" "rm" "-f" "8975597d85637691c8896a023970e87715a713c1cb3fd9b972c0b36928cbfd8b"`
[INFO] [stdout] 8975597d85637691c8896a023970e87715a713c1cb3fd9b972c0b36928cbfd8b