[INFO] cloning repository silmeth/yarli
[INFO] running `"git" "clone" "--bare" "git://github.com/silmeth/yarli.git" "work/cache/sources/gh/silmeth/yarli"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/silmeth/yarli'...
[INFO] running `"git" "clone" "work/cache/sources/gh/silmeth/yarli" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/silmeth/yarli"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/silmeth/yarli'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/silmeth/yarli" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/silmeth/yarli"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/silmeth/yarli'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] deba8b83a42ef4d92fd3174ca91bd936bff9a730
[INFO] sha for GitHub repo silmeth/yarli: deba8b83a42ef4d92fd3174ca91bd936bff9a730
[INFO] validating manifest of silmeth/yarli on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of silmeth/yarli on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing silmeth/yarli
[INFO] finished frobbing silmeth/yarli
[INFO] frobbed toml for silmeth/yarli written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/silmeth/yarli/Cargo.toml
[INFO] started frobbing silmeth/yarli
[INFO] finished frobbing silmeth/yarli
[INFO] frobbed toml for silmeth/yarli written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/silmeth/yarli/Cargo.toml
[INFO] crate silmeth/yarli already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking silmeth/yarli against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/silmeth/yarli:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 27d0cea9c994679698b7dddf5b0e4283ee2fe8f97d0a00fdb0b1ae15f7f33d51
[INFO] running `"docker" "start" "-a" "27d0cea9c994679698b7dddf5b0e4283ee2fe8f97d0a00fdb0b1ae15f7f33d51"`
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking yarli v0.1.0 (/opt/crater/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:145:5
[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:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `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:145:5
[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:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `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 3.98s
[INFO] running `"docker" "inspect" "27d0cea9c994679698b7dddf5b0e4283ee2fe8f97d0a00fdb0b1ae15f7f33d51"`
[INFO] running `"docker" "rm" "-f" "27d0cea9c994679698b7dddf5b0e4283ee2fe8f97d0a00fdb0b1ae15f7f33d51"`
[INFO] [stdout] 27d0cea9c994679698b7dddf5b0e4283ee2fe8f97d0a00fdb0b1ae15f7f33d51