[INFO] cloning repository https://github.com/homsterius/rust-craftinginterpreters [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/homsterius/rust-craftinginterpreters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhomsterius%2Frust-craftinginterpreters", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhomsterius%2Frust-craftinginterpreters'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a5bf598927ffdee06624feefb95adc9035890f3 [INFO] testing homsterius/rust-craftinginterpreters against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhomsterius%2Frust-craftinginterpreters" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/homsterius/rust-craftinginterpreters on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/homsterius/rust-craftinginterpreters [INFO] finished tweaking git repo https://github.com/homsterius/rust-craftinginterpreters [INFO] tweaked toml for git repo https://github.com/homsterius/rust-craftinginterpreters written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/homsterius/rust-craftinginterpreters already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a74a6a2e18aa757750778b21e10880b316113d44c9112698c08fd0217510836a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a74a6a2e18aa757750778b21e10880b316113d44c9112698c08fd0217510836a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a74a6a2e18aa757750778b21e10880b316113d44c9112698c08fd0217510836a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a74a6a2e18aa757750778b21e10880b316113d44c9112698c08fd0217510836a", kill_on_drop: false }` [INFO] [stdout] a74a6a2e18aa757750778b21e10880b316113d44c9112698c08fd0217510836a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] edcd015ace53ca0e50e938568169475465162bc4c6b43274d42632c5d2ce6292 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "edcd015ace53ca0e50e938568169475465162bc4c6b43274d42632c5d2ce6292", kill_on_drop: false }` [INFO] [stderr] Compiling lox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:5:30 [INFO] [stdout] | [INFO] [stdout] 5 | pub type ExprRef<'a, T> = Rc + 'a>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:15:32 [INFO] [stdout] | [INFO] [stdout] 15 | fn accept(&self, visitor: &Visitor<'a, T>) -> T; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:36:32 [INFO] [stdout] | [INFO] [stdout] 36 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:53:32 [INFO] [stdout] | [INFO] [stdout] 53 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:70:32 [INFO] [stdout] | [INFO] [stdout] 70 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:91:32 [INFO] [stdout] | [INFO] [stdout] 91 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:7:32 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn print(&self, expr: &Expr<'a, String>) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:11:56 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn parenthesize(&self, name: &'a str, expr: &[&Expr<'a, String>]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:46:26 [INFO] [stdout] | [INFO] [stdout] 46 | let mut expr: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:50:27 [INFO] [stdout] | [INFO] [stdout] 50 | let right: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:107:26 [INFO] [stdout] | [INFO] [stdout] 107 | let expr: Rc> = self.expression()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `Keywords` should have an upper case name [INFO] [stdout] --> src/lox/scanner.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | static ref Keywords: HashMap<&'static str, TokenType> = { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.10s [INFO] running `Command { std: "docker" "inspect" "edcd015ace53ca0e50e938568169475465162bc4c6b43274d42632c5d2ce6292", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "edcd015ace53ca0e50e938568169475465162bc4c6b43274d42632c5d2ce6292", kill_on_drop: false }` [INFO] [stdout] edcd015ace53ca0e50e938568169475465162bc4c6b43274d42632c5d2ce6292 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2bbc05ab9cc81c3600be74d63cc359245895ddc60145c0df3563d90c1a461fbe [INFO] running `Command { std: "docker" "start" "-a" "2bbc05ab9cc81c3600be74d63cc359245895ddc60145c0df3563d90c1a461fbe", kill_on_drop: false }` [INFO] [stderr] Compiling lox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:5:30 [INFO] [stdout] | [INFO] [stdout] 5 | pub type ExprRef<'a, T> = Rc + 'a>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:15:32 [INFO] [stdout] | [INFO] [stdout] 15 | fn accept(&self, visitor: &Visitor<'a, T>) -> T; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:36:32 [INFO] [stdout] | [INFO] [stdout] 36 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:53:32 [INFO] [stdout] | [INFO] [stdout] 53 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:70:32 [INFO] [stdout] | [INFO] [stdout] 70 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:91:32 [INFO] [stdout] | [INFO] [stdout] 91 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:7:32 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn print(&self, expr: &Expr<'a, String>) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:11:56 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn parenthesize(&self, name: &'a str, expr: &[&Expr<'a, String>]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:46:26 [INFO] [stdout] | [INFO] [stdout] 46 | let mut expr: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:50:27 [INFO] [stdout] | [INFO] [stdout] 50 | let right: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:107:26 [INFO] [stdout] | [INFO] [stdout] 107 | let expr: Rc> = self.expression()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `Keywords` should have an upper case name [INFO] [stdout] --> src/lox/scanner.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | static ref Keywords: HashMap<&'static str, TokenType> = { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:5:30 [INFO] [stdout] | [INFO] [stdout] 5 | pub type ExprRef<'a, T> = Rc + 'a>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:15:32 [INFO] [stdout] | [INFO] [stdout] 15 | fn accept(&self, visitor: &Visitor<'a, T>) -> T; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:36:32 [INFO] [stdout] | [INFO] [stdout] 36 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:53:32 [INFO] [stdout] | [INFO] [stdout] 53 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:70:32 [INFO] [stdout] | [INFO] [stdout] 70 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/expr.rs:91:32 [INFO] [stdout] | [INFO] [stdout] 91 | fn accept(&self, visitor: &Visitor<'a, T>) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Visitor<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:7:32 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn print(&self, expr: &Expr<'a, String>) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/ast_printer.rs:11:56 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn parenthesize(&self, name: &'a str, expr: &[&Expr<'a, String>]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, String>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:46:26 [INFO] [stdout] | [INFO] [stdout] 46 | let mut expr: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:50:27 [INFO] [stdout] | [INFO] [stdout] 50 | let right: Rc> = self.addition()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lox/parser.rs:107:26 [INFO] [stdout] | [INFO] [stdout] 107 | let expr: Rc> = self.expression()?; [INFO] [stdout] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `Keywords` should have an upper case name [INFO] [stdout] --> src/lox/scanner.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | static ref Keywords: HashMap<&'static str, TokenType> = { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.82s [INFO] running `Command { std: "docker" "inspect" "2bbc05ab9cc81c3600be74d63cc359245895ddc60145c0df3563d90c1a461fbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bbc05ab9cc81c3600be74d63cc359245895ddc60145c0df3563d90c1a461fbe", kill_on_drop: false }` [INFO] [stdout] 2bbc05ab9cc81c3600be74d63cc359245895ddc60145c0df3563d90c1a461fbe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7269537dd2b5dd646488cc4e67aaa9b2f30206f5ba7371608bb4dfde7fb343d1 [INFO] running `Command { std: "docker" "start" "-a" "7269537dd2b5dd646488cc4e67aaa9b2f30206f5ba7371608bb4dfde7fb343d1", kill_on_drop: false }` [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 + '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] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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> = self.addition()?; [INFO] [stderr] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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> = self.addition()?; [INFO] [stderr] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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> = self.expression()?; [INFO] [stderr] | ^^^^^^^^^^^ help: use `dyn`: `dyn Expr<'a, T>` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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] warning: `lox` (lib) generated 12 warnings [INFO] [stderr] warning: `lox` (lib test) generated 12 warnings (12 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/lox-52ea701a3a39bdf6) [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/lox-ced1e32afa25cd49) [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; finished in 0.00s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7269537dd2b5dd646488cc4e67aaa9b2f30206f5ba7371608bb4dfde7fb343d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7269537dd2b5dd646488cc4e67aaa9b2f30206f5ba7371608bb4dfde7fb343d1", kill_on_drop: false }` [INFO] [stdout] 7269537dd2b5dd646488cc4e67aaa9b2f30206f5ba7371608bb4dfde7fb343d1