Oct 21 15:45:29.488 INFO checking memoryleak47/constraint-lang against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 15:45:29.489 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 15:45:29.854 INFO blam! 16827267aa659a0cdabc9f1c0efcec3553b2a5aa9aebae1785026beb2424b624
Oct 21 15:45:29.857 INFO running `"docker" "start" "-a" "16827267aa659a0cdabc9f1c0efcec3553b2a5aa9aebae1785026beb2424b624"`
Oct 21 15:45:30.904 INFO kablam! usermod: no changes
Oct 21 15:45:30.968 INFO kablam!     Checking memchr v1.0.2
Oct 21 15:45:31.440 INFO kablam!     Checking nom v3.2.1
Oct 21 15:45:34.257 INFO kablam!     Checking productivity-lang-compiler v0.1.0 (/source)
Oct 21 15:45:37.473 INFO kablam! warning: variant is never constructed: `String`
Oct 21 15:45:37.473 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 21 15:45:37.473 INFO kablam!     |
Oct 21 15:45:37.474 INFO kablam! 154 |     String(String),
Oct 21 15:45:37.474 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 21 15:45:37.474 INFO kablam!     |
Oct 21 15:45:37.474 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 21 15:45:37.475 INFO kablam! 
Oct 21 15:45:37.475 INFO kablam! warning: variant is never constructed: `Null`
Oct 21 15:45:37.475 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 21 15:45:37.475 INFO kablam!     |
Oct 21 15:45:37.476 INFO kablam! 156 |     Null, // the `null` expression
Oct 21 15:45:37.476 INFO kablam!     |     ^^^^
Oct 21 15:45:37.476 INFO kablam! 
Oct 21 15:45:37.477 INFO kablam! warning: variant is never constructed: `Array`
Oct 21 15:45:37.477 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 21 15:45:37.477 INFO kablam!     |
Oct 21 15:45:37.477 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 21 15:45:37.478 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 21 15:45:37.478 INFO kablam! 
Oct 21 15:45:37.478 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 21 15:45:37.478 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 21 15:45:37.479 INFO kablam!     |
Oct 21 15:45:37.479 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 21 15:45:37.479 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 21 15:45:37.480 INFO kablam! 
Oct 21 15:45:37.480 INFO kablam! warning: variant is never constructed: `Object`
Oct 21 15:45:37.480 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 21 15:45:37.480 INFO kablam!     |
Oct 21 15:45:37.481 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 21 15:45:37.481 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 15:45:37.481 INFO kablam! 
Oct 21 15:45:37.482 INFO kablam! warning: method is never used: `dealloc`
Oct 21 15:45:37.482 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 21 15:45:37.482 INFO kablam!    |
Oct 21 15:45:37.482 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 21 15:45:37.483 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 15:45:37.483 INFO kablam! 
Oct 21 15:45:37.657 INFO kablam! warning: variant is never constructed: `String`
Oct 21 15:45:37.657 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 21 15:45:37.657 INFO kablam!     |
Oct 21 15:45:37.658 INFO kablam! 154 |     String(String),
Oct 21 15:45:37.658 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 21 15:45:37.658 INFO kablam!     |
Oct 21 15:45:37.659 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 21 15:45:37.659 INFO kablam! 
Oct 21 15:45:37.659 INFO kablam! warning: variant is never constructed: `Null`
Oct 21 15:45:37.659 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 21 15:45:37.660 INFO kablam!     |
Oct 21 15:45:37.660 INFO kablam! 156 |     Null, // the `null` expression
Oct 21 15:45:37.660 INFO kablam!     |     ^^^^
Oct 21 15:45:37.660 INFO kablam! 
Oct 21 15:45:37.661 INFO kablam! warning: variant is never constructed: `Array`
Oct 21 15:45:37.661 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 21 15:45:37.661 INFO kablam!     |
Oct 21 15:45:37.662 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 21 15:45:37.662 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 21 15:45:37.662 INFO kablam! 
Oct 21 15:45:37.663 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 21 15:45:37.663 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 21 15:45:37.663 INFO kablam!     |
Oct 21 15:45:37.663 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 21 15:45:37.664 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 21 15:45:37.664 INFO kablam! 
Oct 21 15:45:37.664 INFO kablam! warning: variant is never constructed: `Object`
Oct 21 15:45:37.665 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 21 15:45:37.665 INFO kablam!     |
Oct 21 15:45:37.665 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 21 15:45:37.666 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 15:45:37.666 INFO kablam! 
Oct 21 15:45:37.666 INFO kablam! warning: method is never used: `dealloc`
Oct 21 15:45:37.666 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 21 15:45:37.667 INFO kablam!    |
Oct 21 15:45:37.667 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 21 15:45:37.667 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 15:45:37.668 INFO kablam! 
Oct 21 15:45:37.741 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.82s
Oct 21 15:45:37.753 INFO kablam! su: No module specific data is present
Oct 21 15:45:38.462 INFO running `"docker" "rm" "-f" "16827267aa659a0cdabc9f1c0efcec3553b2a5aa9aebae1785026beb2424b624"`
Oct 21 15:45:38.732 INFO blam! 16827267aa659a0cdabc9f1c0efcec3553b2a5aa9aebae1785026beb2424b624