Oct 12 13:44:09.808 INFO checking silmeth/yarli against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 13:44:09.814 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 13:44:10.378 INFO blam! 0c42836141ec48c9feab622d8c5e65c5bc000e3bf81b031c9e16caf2f9b786bf
Oct 12 13:44:10.379 INFO running `"docker" "start" "-a" "0c42836141ec48c9feab622d8c5e65c5bc000e3bf81b031c9e16caf2f9b786bf"`
Oct 12 13:44:11.803 INFO kablam! usermod: no changes
Oct 12 13:44:11.920 INFO kablam!     Checking yarli v0.1.0 (/source)
Oct 12 13:44:13.528 INFO kablam! warning: function is never used: `print_ast`
Oct 12 13:44:13.528 INFO kablam!    --> src/lox/ast.rs:145:5
Oct 12 13:44:13.528 INFO kablam!     |
Oct 12 13:44:13.528 INFO kablam! 145 |     pub fn print_ast(expr: &Expr) -> String {
Oct 12 13:44:13.528 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.528 INFO kablam!     |
Oct 12 13:44:13.528 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 13:44:13.528 INFO kablam! 
Oct 12 13:44:13.528 INFO kablam! warning: function is never used: `parenthesize`
Oct 12 13:44:13.528 INFO kablam!    --> src/lox/ast.rs:168:5
Oct 12 13:44:13.528 INFO kablam!     |
Oct 12 13:44:13.528 INFO kablam! 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
Oct 12 13:44:13.528 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.528 INFO kablam! 
Oct 12 13:44:13.528 INFO kablam! warning: field is never used: `globals`
Oct 12 13:44:13.528 INFO kablam!   --> src/lox/interpreter.rs:17:5
Oct 12 13:44:13.528 INFO kablam!    |
Oct 12 13:44:13.529 INFO kablam! 17 |     globals: EnvironmentCell,
Oct 12 13:44:13.529 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.529 INFO kablam! 
Oct 12 13:44:13.668 INFO kablam! warning: function is never used: `print_ast`
Oct 12 13:44:13.668 INFO kablam!    --> src/lox/ast.rs:145:5
Oct 12 13:44:13.668 INFO kablam!     |
Oct 12 13:44:13.668 INFO kablam! 145 |     pub fn print_ast(expr: &Expr) -> String {
Oct 12 13:44:13.668 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.668 INFO kablam!     |
Oct 12 13:44:13.668 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 13:44:13.668 INFO kablam! 
Oct 12 13:44:13.668 INFO kablam! warning: function is never used: `parenthesize`
Oct 12 13:44:13.668 INFO kablam!    --> src/lox/ast.rs:168:5
Oct 12 13:44:13.668 INFO kablam!     |
Oct 12 13:44:13.668 INFO kablam! 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
Oct 12 13:44:13.668 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.668 INFO kablam! 
Oct 12 13:44:13.668 INFO kablam! warning: field is never used: `globals`
Oct 12 13:44:13.668 INFO kablam!   --> src/lox/interpreter.rs:17:5
Oct 12 13:44:13.668 INFO kablam!    |
Oct 12 13:44:13.668 INFO kablam! 17 |     globals: EnvironmentCell,
Oct 12 13:44:13.668 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:44:13.668 INFO kablam! 
Oct 12 13:44:13.709 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
Oct 12 13:44:13.717 INFO kablam! su: No module specific data is present
Oct 12 13:44:14.542 INFO running `"docker" "rm" "-f" "0c42836141ec48c9feab622d8c5e65c5bc000e3bf81b031c9e16caf2f9b786bf"`
Oct 12 13:44:14.878 INFO blam! 0c42836141ec48c9feab622d8c5e65c5bc000e3bf81b031c9e16caf2f9b786bf