[INFO] updating cached repository homsterius/rust-craftinginterpreters
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/homsterius/rust-craftinginterpreters
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/homsterius/rust-craftinginterpreters" "work/ex/beta-1.37-6/sources/1.36.0/gh/homsterius/rust-craftinginterpreters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/homsterius/rust-craftinginterpreters'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/homsterius/rust-craftinginterpreters" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1a5bf598927ffdee06624feefb95adc9035890f3
[INFO] sha for GitHub repo homsterius/rust-craftinginterpreters: 1a5bf598927ffdee06624feefb95adc9035890f3
[INFO] validating manifest of homsterius/rust-craftinginterpreters on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of homsterius/rust-craftinginterpreters on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing homsterius/rust-craftinginterpreters
[INFO] finished frobbing homsterius/rust-craftinginterpreters
[INFO] frobbed toml for homsterius/rust-craftinginterpreters written to work/ex/beta-1.37-6/sources/1.36.0/gh/homsterius/rust-craftinginterpreters/Cargo.toml
[INFO] started frobbing homsterius/rust-craftinginterpreters
[INFO] finished frobbing homsterius/rust-craftinginterpreters
[INFO] frobbed toml for homsterius/rust-craftinginterpreters written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters/Cargo.toml
[INFO] crate homsterius/rust-craftinginterpreters already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing homsterius/rust-craftinginterpreters against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e24b08e4856c74389b549cb08e702204ca010e9ddbe123200fa538579170507f
[INFO] running `"docker" "start" "-a" "e24b08e4856c74389b549cb08e702204ca010e9ddbe123200fa538579170507f"`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lox/expr.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type ExprRef<'a, T> = Rc<Expr<'a, T> + 'a>;
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T> + 'a`
[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/lox/expr.rs:15:32
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:53:32
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:70:32
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lox/ast_printer.rs:7:32
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn print(&self, expr: &Expr<'a, String>) -> String {
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/ast_printer.rs:11:56
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn parenthesize(&self, name: &'a str, expr: &[&Expr<'a, String>]) -> String {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/parser.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut expr: Rc<Expr<'a, T>> = self.addition()?;
[INFO] [stderr]    |                          ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/parser.rs:50:27
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let right: Rc<Expr<'a, T>> = self.addition()?;
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/parser.rs:107:26
[INFO] [stderr]     |
[INFO] [stderr] 107 |             let expr: Rc<Expr<'a, T>> = self.expression()?;
[INFO] [stderr]     |                          ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `Keywords` should have an upper case name
[INFO] [stderr]  --> src/lox/scanner.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 |     static ref Keywords: HashMap<&'static str, TokenType> = {
[INFO] [stderr]   |                ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "e24b08e4856c74389b549cb08e702204ca010e9ddbe123200fa538579170507f"`
[INFO] running `"docker" "rm" "-f" "e24b08e4856c74389b549cb08e702204ca010e9ddbe123200fa538579170507f"`
[INFO] [stdout] e24b08e4856c74389b549cb08e702204ca010e9ddbe123200fa538579170507f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ab1d511ccaf3f377dc537b4260ba151dc3eb6b70eb3284c7b05044769879f018
[INFO] running `"docker" "start" "-a" "ab1d511ccaf3f377dc537b4260ba151dc3eb6b70eb3284c7b05044769879f018"`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lox/expr.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type ExprRef<'a, T> = Rc<Expr<'a, T> + 'a>;
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T> + 'a`
[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/lox/expr.rs:15:32
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:53:32
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:70:32
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/expr.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn accept(&self, visitor: &Visitor<'a, T>) -> T {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lox/ast_printer.rs:7:32
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn print(&self, expr: &Expr<'a, String>) -> String {
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/ast_printer.rs:11:56
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn parenthesize(&self, name: &'a str, expr: &[&Expr<'a, String>]) -> String {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/parser.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut expr: Rc<Expr<'a, T>> = self.addition()?;
[INFO] [stderr]    |                          ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/parser.rs:50:27
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let right: Rc<Expr<'a, T>> = self.addition()?;
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/parser.rs:107:26
[INFO] [stderr]     |
[INFO] [stderr] 107 |             let expr: Rc<Expr<'a, T>> = self.expression()?;
[INFO] [stderr]     |                          ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `Keywords` should have an upper case name
[INFO] [stderr]  --> src/lox/scanner.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 |     static ref Keywords: HashMap<&'static str, TokenType> = {
[INFO] [stderr]   |                ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "ab1d511ccaf3f377dc537b4260ba151dc3eb6b70eb3284c7b05044769879f018"`
[INFO] running `"docker" "rm" "-f" "ab1d511ccaf3f377dc537b4260ba151dc3eb6b70eb3284c7b05044769879f018"`
[INFO] [stdout] ab1d511ccaf3f377dc537b4260ba151dc3eb6b70eb3284c7b05044769879f018
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/homsterius/rust-craftinginterpreters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] c985423986441aa9bc144b9ddf32f4b429f6b3e5e0b0a6938b42943deca95234
[INFO] running `"docker" "start" "-a" "c985423986441aa9bc144b9ddf32f4b429f6b3e5e0b0a6938b42943deca95234"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lox-cdd0b61f26f201f7
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::ast_printer ... 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/crater/target/debug/deps/lox-ea2de24c5238dbd4
[INFO] [stderr]    Doc-tests lox
[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 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" "c985423986441aa9bc144b9ddf32f4b429f6b3e5e0b0a6938b42943deca95234"`
[INFO] running `"docker" "rm" "-f" "c985423986441aa9bc144b9ddf32f4b429f6b3e5e0b0a6938b42943deca95234"`
[INFO] [stdout] c985423986441aa9bc144b9ddf32f4b429f6b3e5e0b0a6938b42943deca95234