[INFO] cloning repository https://github.com/silmeth/yarli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/silmeth/yarli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deba8b83a42ef4d92fd3174ca91bd936bff9a730
[INFO] checking silmeth/yarli against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli" "/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/silmeth/yarli on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/silmeth/yarli
[INFO] finished tweaking git repo https://github.com/silmeth/yarli
[INFO] tweaked toml for git repo https://github.com/silmeth/yarli written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/silmeth/yarli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16032d5077434d476bf86fa7c08a32e46fb1c57968103f5e41f0c9092f122189
[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" "16032d5077434d476bf86fa7c08a32e46fb1c57968103f5e41f0c9092f122189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16032d5077434d476bf86fa7c08a32e46fb1c57968103f5e41f0c9092f122189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16032d5077434d476bf86fa7c08a32e46fb1c57968103f5e41f0c9092f122189", kill_on_drop: false }`
[INFO] [stdout] 16032d5077434d476bf86fa7c08a32e46fb1c57968103f5e41f0c9092f122189
[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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dee01426320367898d9fd6df433b22725cbe4e1f7962df36997e465d0e65b847
[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" "dee01426320367898d9fd6df433b22725cbe4e1f7962df36997e465d0e65b847", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking yarli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox/ast.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/ast.rs:110:69
[INFO] [stdout]     |
[INFO] [stdout] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/interpreter.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |     type C = Rc<Callable>;
[INFO] [stdout]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox/ast.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/ast.rs:110:69
[INFO] [stdout]     |
[INFO] [stdout] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/interpreter.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |     type C = Rc<Callable>;
[INFO] [stdout]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_ast`
[INFO] [stdout]    --> src/lox/ast.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parenthesize`
[INFO] [stdout]    --> src/lox/ast.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/lox/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     globals: EnvironmentCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_ast`
[INFO] [stdout]    --> src/lox/ast.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parenthesize`
[INFO] [stdout]    --> src/lox/ast.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/lox/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     globals: EnvironmentCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.64s
[INFO] running `Command { std: "docker" "inspect" "dee01426320367898d9fd6df433b22725cbe4e1f7962df36997e465d0e65b847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee01426320367898d9fd6df433b22725cbe4e1f7962df36997e465d0e65b847", kill_on_drop: false }`
[INFO] [stdout] dee01426320367898d9fd6df433b22725cbe4e1f7962df36997e465d0e65b847