[INFO] cloning repository https://github.com/julioolvr/rlox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julioolvr/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8908c5eca599cb2ab16dde00d47507c5b004de0
[INFO] testing julioolvr/rlox against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulioolvr%2Frlox" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/julioolvr/rlox on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/julioolvr/rlox
[INFO] finished tweaking git repo https://github.com/julioolvr/rlox
[INFO] tweaked toml for git repo https://github.com/julioolvr/rlox written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/julioolvr/rlox already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+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] 57957904b484197c20e2686c40721a7076abf2f6c46eac78315ee8dd05247cbc
[INFO] running `"docker" "start" "-a" "57957904b484197c20e2686c40721a7076abf2f6c46eac78315ee8dd05247cbc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |             '0'...'9' => self.scan_numeric_literal(),
[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/rlox/scanner/char_scanner.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_class.rs:75:26
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_func.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/mod.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Func(Rc<Callable>),
[INFO] [stderr]    |             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/lox_value/mod.rs:182:45
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn get_callable(&self) -> Option<Rc<Callable>> {
[INFO] [stderr]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(writer: Rc<RefCell<&'a mut io::Write>>) -> Interpreter<'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/native/clock/mod.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/mod.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn as_any(&self) -> &Any; // TODO: Read https://stackoverflow.com/a/33687996/275442
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_file(path: &str, writer: &mut io::Write) -> Result<(), Vec<Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:25:62
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run_repl<R: io::BufRead>(reader: &mut R, writer: &mut io::Write) {
[INFO] [stderr]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:62:67
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:109:32
[INFO] [stderr]     |
[INFO] [stderr] 109 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn new(reader: R, writer: Rc<RefCell<&'a mut io::Write>>) -> ReplIterator<R> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rlox/api.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `"docker" "inspect" "57957904b484197c20e2686c40721a7076abf2f6c46eac78315ee8dd05247cbc"`
[INFO] running `"docker" "rm" "-f" "57957904b484197c20e2686c40721a7076abf2f6c46eac78315ee8dd05247cbc"`
[INFO] [stdout] 57957904b484197c20e2686c40721a7076abf2f6c46eac78315ee8dd05247cbc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+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] 402d2582c6d53eaf3f9838cba95c9725e7f11c1483379990fdcbcb92a4ddba01
[INFO] running `"docker" "start" "-a" "402d2582c6d53eaf3f9838cba95c9725e7f11c1483379990fdcbcb92a4ddba01"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |             '0'...'9' => self.scan_numeric_literal(),
[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/rlox/scanner/char_scanner.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_class.rs:75:26
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_func.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/mod.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Func(Rc<Callable>),
[INFO] [stderr]    |             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/lox_value/mod.rs:182:45
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn get_callable(&self) -> Option<Rc<Callable>> {
[INFO] [stderr]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(writer: Rc<RefCell<&'a mut io::Write>>) -> Interpreter<'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/native/clock/mod.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/mod.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn as_any(&self) -> &Any; // TODO: Read https://stackoverflow.com/a/33687996/275442
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_file(path: &str, writer: &mut io::Write) -> Result<(), Vec<Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:25:62
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run_repl<R: io::BufRead>(reader: &mut R, writer: &mut io::Write) {
[INFO] [stderr]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:62:67
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:109:32
[INFO] [stderr]     |
[INFO] [stderr] 109 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn new(reader: R, writer: Rc<RefCell<&'a mut io::Write>>) -> ReplIterator<R> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rlox/api.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |             '0'...'9' => self.scan_numeric_literal(),
[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/rlox/scanner/char_scanner.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_class.rs:75:26
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_func.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/mod.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Func(Rc<Callable>),
[INFO] [stderr]    |             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/lox_value/mod.rs:182:45
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn get_callable(&self) -> Option<Rc<Callable>> {
[INFO] [stderr]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(writer: Rc<RefCell<&'a mut io::Write>>) -> Interpreter<'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/native/clock/mod.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/mod.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn as_any(&self) -> &Any; // TODO: Read https://stackoverflow.com/a/33687996/275442
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_file(path: &str, writer: &mut io::Write) -> Result<(), Vec<Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:25:62
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run_repl<R: io::BufRead>(reader: &mut R, writer: &mut io::Write) {
[INFO] [stderr]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:62:67
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:109:32
[INFO] [stderr]     |
[INFO] [stderr] 109 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn new(reader: R, writer: Rc<RefCell<&'a mut io::Write>>) -> ReplIterator<R> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rlox/api.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `"docker" "inspect" "402d2582c6d53eaf3f9838cba95c9725e7f11c1483379990fdcbcb92a4ddba01"`
[INFO] running `"docker" "rm" "-f" "402d2582c6d53eaf3f9838cba95c9725e7f11c1483379990fdcbcb92a4ddba01"`
[INFO] [stdout] 402d2582c6d53eaf3f9838cba95c9725e7f11c1483379990fdcbcb92a4ddba01
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "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] 6c3559f667dcd82f7ce26953990949f1d1099a4d7487e797d64ec79c9dc42efa
[INFO] running `"docker" "start" "-a" "6c3559f667dcd82f7ce26953990949f1d1099a4d7487e797d64ec79c9dc42efa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |             '0'...'9' => self.scan_numeric_literal(),
[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/rlox/scanner/char_scanner.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |             '0'...'9' => self.scan_numeric_literal(),
[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/rlox/scanner/char_scanner.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_class.rs:75:26
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/rlox/scanner/char_scanner.rs:109:28
[INFO] [stderr]     |
[INFO] [stderr] 109 |             'a'...'z' | 'A'...'Z' | '_' => self.scan_identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_func.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_class.rs:75:26
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/mod.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Func(Rc<Callable>),
[INFO] [stderr]    |             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/lox_func.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/lox_value/mod.rs:182:45
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn get_callable(&self) -> Option<Rc<Callable>> {
[INFO] [stderr]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/lox_value/mod.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Func(Rc<Callable>),
[INFO] [stderr]    |             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/lox_value/mod.rs:182:45
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn get_callable(&self) -> Option<Rc<Callable>> {
[INFO] [stderr]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(writer: Rc<RefCell<&'a mut io::Write>>) -> Interpreter<'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/native/clock/mod.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/interpreter/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(writer: Rc<RefCell<&'a mut io::Write>>) -> Interpreter<'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/mod.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn as_any(&self) -> &Any; // TODO: Read https://stackoverflow.com/a/33687996/275442
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/native/clock/mod.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn as_any(&self) -> &Any {
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_file(path: &str, writer: &mut io::Write) -> Result<(), Vec<Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/callables/mod.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn as_any(&self) -> &Any; // TODO: Read https://stackoverflow.com/a/33687996/275442
[INFO] [stderr]    |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:25:62
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run_repl<R: io::BufRead>(reader: &mut R, writer: &mut io::Write) {
[INFO] [stderr]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_file(path: &str, writer: &mut io::Write) -> Result<(), Vec<Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:62:67
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:25:62
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run_repl<R: io::BufRead>(reader: &mut R, writer: &mut io::Write) {
[INFO] [stderr]    |                                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:109:32
[INFO] [stderr]     |
[INFO] [stderr] 109 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rlox/api.rs:62:67
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn new(reader: R, writer: Rc<RefCell<&'a mut io::Write>>) -> ReplIterator<R> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:109:32
[INFO] [stderr]     |
[INFO] [stderr] 109 |     writer: Rc<RefCell<&'a mut io::Write>>,
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rlox/api.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn new(reader: R, writer: Rc<RefCell<&'a mut io::Write>>) -> ReplIterator<R> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rlox/api.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/rlox/token.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | / lazy_static! {
[INFO] [stderr] 110 | |     pub static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 111 | |         let mut m = HashMap::new();
[INFO] [stderr] 112 | |         m.insert("and", TokenType::And);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     };
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rlox/api.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let mut writer = Rc::new(RefCell::new(&mut cursor as &mut io::Write));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlox-06ffe5682d8a558d
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test rlox::scanner::tests::error_on_unknown_character ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::bang_equal ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::comma ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::equal_equal ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::dot ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::left_paren ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::equal ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::false_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::greater ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::greater_equal ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::left_brace ... ok
[INFO] [stdout] test rlox::scanner::tests::has_only_eof_token_for_empty_source ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::bang ... ok
[INFO] [stdout] test rlox::scanner::tests::line_numbers ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::comments ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::less ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::less_equal ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::identifier ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::and ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::class ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::else_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::for_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::nil ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::return_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::if_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::fun ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::or ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::print ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::var ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::plus ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::number ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::minus ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::right_brace ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::slash ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::right_paren ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::star ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::super_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::true_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::this ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::white_space ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::keywords::while_token ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::literals::string ... ok
[INFO] [stdout] test rlox::scanner::tests::tokens::semicolon ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 43 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlox-7a6d950838e94fda
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/classes-e5647518cc7c07f9
[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] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test class_declaration_doesnt_fail ... ok
[INFO] [stdout] test printing_class_shows_class_name ... ok
[INFO] [stdout] test printing_class_instance_shows_class_name ... ok
[INFO] [stdout] test class_declaration_missing_open_brace ... ok
[INFO] [stdout] test compared_by_identity ... ok
[INFO] [stdout] test call_method_on_instance ... ok
[INFO] [stdout] test compare_instances_by_identity ... ok
[INFO] [stdout] test reach_this_from_instance_method ... ok
[INFO] [stdout] test callback_with_bound_this ... ok
[INFO] [stdout] test detached_this ... ok
[INFO] [stdout] test calling_init_returns_the_same_instance ... ok
[INFO] [stdout] test class_declaration_missing_closing_brace ... ok
[INFO] [stdout] test read_property_from_instance_is_a_runtime_error ... ok
[INFO] [stdout] test instance_initializer ... ok
[INFO] [stdout] test initializer_with_parameters ... ok
[INFO] [stdout] test set_property_in_instance ... ok
[INFO] [stdout] test using_this_in_root_fails ... ok
[INFO] [stdout] test return_from_init_throws_an_error ... ok
[INFO] [stdout] test using_this_in_non_method_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/closures-5e37529765ddee63
[INFO] [stdout] running 1 test
[INFO] [stdout] test simple_closure ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/functions-4f73015a831622b2
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test function_parameters ... ok
[INFO] [stdout] test compared_by_identity ... ok
[INFO] [stdout] test return_on_top_level ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/inheritance-26682785f1aa5fb2
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test expects_superclass_name_after_less_token ... ok
[INFO] [stdout] test referencing_super_without_access_fails ... ok
[INFO] [stdout] test using_super ... ok
[INFO] [stdout] test can_call_superclass_method ... ok
[INFO] [stdout] test overriding_methods ... ok
[INFO] [stdout] test using_super_without_superclass_fails ... ok
[INFO] [stdout] test using_super_outside_of_method_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test closure_environment_mutation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scope-6fc170a76d81f525
[INFO] [stderr]    Doc-tests rlox
[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" "6c3559f667dcd82f7ce26953990949f1d1099a4d7487e797d64ec79c9dc42efa"`
[INFO] running `"docker" "rm" "-f" "6c3559f667dcd82f7ce26953990949f1d1099a4d7487e797d64ec79c9dc42efa"`
[INFO] [stdout] 6c3559f667dcd82f7ce26953990949f1d1099a4d7487e797d64ec79c9dc42efa