[INFO] updating cached repository https://github.com/silmeth/yarli
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] deba8b83a42ef4d92fd3174ca91bd936bff9a730
[INFO] checking silmeth/yarli against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/silmeth/yarli on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] crate git repo https://github.com/silmeth/yarli already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c190ad627644cbbb83f7ce2071d78de7f0f06b832e50f1d024b5de1cacedf54
[INFO] running `"docker" "start" "-a" "0c190ad627644cbbb83f7ce2071d78de7f0f06b832e50f1d024b5de1cacedf54"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking num-integer v0.1.38
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking yarli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox/ast.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |     Function(Rc<Callable>),
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[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/ast.rs:110:69
[INFO] [stderr]     |
[INFO] [stderr] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stderr]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/interpreter.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 278 |     type C = 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/lox/ast.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |     Function(Rc<Callable>),
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[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/ast.rs:110:69
[INFO] [stderr]     |
[INFO] [stderr] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stderr]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/interpreter.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 278 |     type C = Rc<Callable>;
[INFO] [stderr]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_ast`
[INFO] [stderr]    --> src/lox/ast.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parenthesize`
[INFO] [stderr]    --> src/lox/ast.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `globals`
[INFO] [stderr]   --> src/lox/interpreter.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     globals: EnvironmentCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_ast`
[INFO] [stderr]    --> src/lox/ast.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parenthesize`
[INFO] [stderr]    --> src/lox/ast.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `globals`
[INFO] [stderr]   --> src/lox/interpreter.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     globals: EnvironmentCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.07s
[INFO] running `"docker" "inspect" "0c190ad627644cbbb83f7ce2071d78de7f0f06b832e50f1d024b5de1cacedf54"`
[INFO] running `"docker" "rm" "-f" "0c190ad627644cbbb83f7ce2071d78de7f0f06b832e50f1d024b5de1cacedf54"`
[INFO] [stdout] 0c190ad627644cbbb83f7ce2071d78de7f0f06b832e50f1d024b5de1cacedf54