[INFO] fetching crate simplisp 0.4.0...
[INFO] testing simplisp-0.4.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate simplisp 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate simplisp 0.4.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate simplisp 0.4.0
[INFO] finished tweaking crates.io crate simplisp 0.4.0
[INFO] tweaked toml for crates.io crate simplisp 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.44.0" "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] 92f413554f2526548e4815eb4d19b55aa1334c1c710109748fed8ba7e2f0137a
[INFO] running `"docker" "start" "-a" "92f413554f2526548e4815eb4d19b55aa1334c1c710109748fed8ba7e2f0137a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling simplisp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 root: try!(Self::parse_program_text(program_text)),
[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/lisp/abstract_syntax_tree.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let inner_node = try!(Self::parse(enumerated_text, program_text));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:77:61
[INFO] [stderr]    |
[INFO] [stderr] 77 | ...                   let string_object = try!(Self::parse_double_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:82:61
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   let string_object = try!(Self::parse_single_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/abstract_syntax_tree.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let root = try!(Self::parse(&mut enumerated_text, program_text));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let result = try!(self.evaluate(arg, &execution_tree_root_object));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let ast = try!(AbstractSyntaxTree::new(source));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:86:30
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let execution_tree = try!(ExecutionTree::new(&ast));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:118:37
[INFO] [stderr]     |
[INFO] [stderr] 118 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:129:49
[INFO] [stderr]     |
[INFO] [stderr] 129 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:138:37
[INFO] [stderr]     |
[INFO] [stderr] 138 |                         result.push(try!(self.evaluate(arg, &other)));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let root = try!(Self::visit_node(abstract_root.deref()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |                     let new_node = try!(Self::visit_node(inner_node));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:78:38
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     let new_object = try!(Self::visit_string(string));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:128:46
[INFO] [stderr]     |
[INFO] [stderr] 128 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:138:46
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree_node.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let string = try!(object.to_string());
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree_object.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 &ExecutionTreeObject::Node(ref some) => try!(some.to_string()),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |         ErrorWrapper(cause: Box<StdError + Send>) {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error/mod.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |             description(cause.description())
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `"docker" "inspect" "92f413554f2526548e4815eb4d19b55aa1334c1c710109748fed8ba7e2f0137a"`
[INFO] running `"docker" "rm" "-f" "92f413554f2526548e4815eb4d19b55aa1334c1c710109748fed8ba7e2f0137a"`
[INFO] [stdout] 92f413554f2526548e4815eb4d19b55aa1334c1c710109748fed8ba7e2f0137a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.44.0" "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] 508035c606ec5ff68b7e1049800dcc0b6599cd5ab075f2d30fafacb91beda054
[INFO] running `"docker" "start" "-a" "508035c606ec5ff68b7e1049800dcc0b6599cd5ab075f2d30fafacb91beda054"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling simplisp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 root: try!(Self::parse_program_text(program_text)),
[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/lisp/abstract_syntax_tree.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let inner_node = try!(Self::parse(enumerated_text, program_text));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:77:61
[INFO] [stderr]    |
[INFO] [stderr] 77 | ...                   let string_object = try!(Self::parse_double_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:82:61
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   let string_object = try!(Self::parse_single_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/abstract_syntax_tree.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let root = try!(Self::parse(&mut enumerated_text, program_text));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let result = try!(self.evaluate(arg, &execution_tree_root_object));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let ast = try!(AbstractSyntaxTree::new(source));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:86:30
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let execution_tree = try!(ExecutionTree::new(&ast));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:118:37
[INFO] [stderr]     |
[INFO] [stderr] 118 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:129:49
[INFO] [stderr]     |
[INFO] [stderr] 129 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:138:37
[INFO] [stderr]     |
[INFO] [stderr] 138 |                         result.push(try!(self.evaluate(arg, &other)));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let root = try!(Self::visit_node(abstract_root.deref()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |                     let new_node = try!(Self::visit_node(inner_node));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:78:38
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     let new_object = try!(Self::visit_string(string));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:128:46
[INFO] [stderr]     |
[INFO] [stderr] 128 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:138:46
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree_node.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let string = try!(object.to_string());
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree_object.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 &ExecutionTreeObject::Node(ref some) => try!(some.to_string()),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |         ErrorWrapper(cause: Box<StdError + Send>) {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error/mod.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |             description(cause.description())
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 root: try!(Self::parse_program_text(program_text)),
[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/lisp/abstract_syntax_tree.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let inner_node = try!(Self::parse(enumerated_text, program_text));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:77:61
[INFO] [stderr]    |
[INFO] [stderr] 77 | ...                   let string_object = try!(Self::parse_double_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:82:61
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   let string_object = try!(Self::parse_single_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/abstract_syntax_tree.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let root = try!(Self::parse(&mut enumerated_text, program_text));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let result = try!(self.evaluate(arg, &execution_tree_root_object));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let ast = try!(AbstractSyntaxTree::new(source));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:86:30
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let execution_tree = try!(ExecutionTree::new(&ast));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:118:37
[INFO] [stderr]     |
[INFO] [stderr] 118 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:129:49
[INFO] [stderr]     |
[INFO] [stderr] 129 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:138:37
[INFO] [stderr]     |
[INFO] [stderr] 138 |                         result.push(try!(self.evaluate(arg, &other)));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let root = try!(Self::visit_node(abstract_root.deref()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |                     let new_node = try!(Self::visit_node(inner_node));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:78:38
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     let new_object = try!(Self::visit_string(string));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:128:46
[INFO] [stderr]     |
[INFO] [stderr] 128 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:138:46
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree_node.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let string = try!(object.to_string());
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree_object.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 &ExecutionTreeObject::Node(ref some) => try!(some.to_string()),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |         ErrorWrapper(cause: Box<StdError + Send>) {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error/mod.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |             description(cause.description())
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "508035c606ec5ff68b7e1049800dcc0b6599cd5ab075f2d30fafacb91beda054"`
[INFO] running `"docker" "rm" "-f" "508035c606ec5ff68b7e1049800dcc0b6599cd5ab075f2d30fafacb91beda054"`
[INFO] [stdout] 508035c606ec5ff68b7e1049800dcc0b6599cd5ab075f2d30fafacb91beda054
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 3c9241431ad888cec85d0a708227f8143b6034e8ac23f3bd8fafa8642f8f1d55
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3c9241431ad888cec85d0a708227f8143b6034e8ac23f3bd8fafa8642f8f1d55"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 root: try!(Self::parse_program_text(program_text)),
[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/lisp/abstract_syntax_tree.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let inner_node = try!(Self::parse(enumerated_text, program_text));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:77:61
[INFO] [stderr]    |
[INFO] [stderr] 77 | ...                   let string_object = try!(Self::parse_double_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:82:61
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   let string_object = try!(Self::parse_single_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/abstract_syntax_tree.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let root = try!(Self::parse(&mut enumerated_text, program_text));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let result = try!(self.evaluate(arg, &execution_tree_root_object));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let ast = try!(AbstractSyntaxTree::new(source));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:86:30
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let execution_tree = try!(ExecutionTree::new(&ast));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 root: try!(Self::parse_program_text(program_text)),
[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/lisp/abstract_syntax_tree.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     let inner_node = try!(Self::parse(enumerated_text, program_text));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:77:61
[INFO] [stderr]    |
[INFO] [stderr] 77 | ...                   let string_object = try!(Self::parse_double_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/abstract_syntax_tree.rs:82:61
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   let string_object = try!(Self::parse_single_quoted_text(index, enumerated_text, program_text));
[INFO] [stderr]    |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/abstract_syntax_tree.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let root = try!(Self::parse(&mut enumerated_text, program_text));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let result = try!(self.evaluate(arg, &execution_tree_root_object));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let ast = try!(AbstractSyntaxTree::new(source));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/environment.rs:86:30
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let execution_tree = try!(ExecutionTree::new(&ast));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:118:37
[INFO] [stderr]     |
[INFO] [stderr] 118 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:129:49
[INFO] [stderr]     |
[INFO] [stderr] 129 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:138:37
[INFO] [stderr]     |
[INFO] [stderr] 138 |                         result.push(try!(self.evaluate(arg, &other)));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let root = try!(Self::visit_node(abstract_root.deref()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |                     let new_node = try!(Self::visit_node(inner_node));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:78:38
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     let new_object = try!(Self::visit_string(string));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:128:46
[INFO] [stderr]     |
[INFO] [stderr] 128 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:138:46
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree_node.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let string = try!(object.to_string());
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree_object.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 &ExecutionTreeObject::Node(ref some) => try!(some.to_string()),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |         ErrorWrapper(cause: Box<StdError + Send>) {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error/mod.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |             description(cause.description())
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:118:37
[INFO] [stderr]     |
[INFO] [stderr] 118 | ...                   None => try!(self.symbol_stack_search(&symbol)),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout] 
[INFO] [stderr]    --> src/lisp/environment.rs:129:49
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 129 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:138:37
[INFO] [stderr]     |
[INFO] [stderr] 138 |                         result.push(try!(self.evaluate(arg, &other)));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/environment.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 | ...                   result.push(try!(self.evaluate(arg, &object)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:16:20
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let root = try!(Self::visit_node(abstract_root.deref()));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |                     let new_node = try!(Self::visit_node(inner_node));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree.rs:78:38
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     let new_object = try!(Self::visit_string(string));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:128:46
[INFO] [stderr]     |
[INFO] [stderr] 128 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree.rs:138:46
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   let string = try!(Self::convert_escape_sequences(&string[1..(byte_len - 1)]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lisp/execution_tree_node.rs:34:26
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let string = try!(object.to_string());
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lisp/execution_tree_object.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 &ExecutionTreeObject::Node(ref some) => try!(some.to_string()),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |         ErrorWrapper(cause: Box<StdError + Send>) {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error/mod.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |             description(cause.description())
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simplisp-0554670a3fc211c7
[INFO] [stderr]    Doc-tests simplisp
[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" "3c9241431ad888cec85d0a708227f8143b6034e8ac23f3bd8fafa8642f8f1d55"`
[INFO] running `"docker" "rm" "-f" "3c9241431ad888cec85d0a708227f8143b6034e8ac23f3bd8fafa8642f8f1d55"`
[INFO] [stdout] 3c9241431ad888cec85d0a708227f8143b6034e8ac23f3bd8fafa8642f8f1d55