Oct 27 00:41:57.727 INFO checking memoryleak47/constraint-lang against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 00:41:57.735 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-7/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 00:41:58.268 INFO blam! 9a6e74656d23e340858800dc9345beec04215f1fab263b39ec0fb0d9e129ee6f
Oct 27 00:41:58.283 INFO running `"docker" "start" "-a" "9a6e74656d23e340858800dc9345beec04215f1fab263b39ec0fb0d9e129ee6f"`
Oct 27 00:41:59.462 INFO kablam! usermod: no changes
Oct 27 00:41:59.515 INFO kablam!     Checking libc v0.2.39
Oct 27 00:42:01.095 INFO kablam!     Checking memchr v1.0.2
Oct 27 00:42:01.508 INFO kablam!     Checking nom v3.2.1
Oct 27 00:42:04.242 INFO kablam!     Checking productivity-lang-compiler v0.1.0 (/source)
Oct 27 00:42:08.543 INFO kablam! warning: variant is never constructed: `String`
Oct 27 00:42:08.544 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 27 00:42:08.544 INFO kablam!     |
Oct 27 00:42:08.545 INFO kablam! 154 |     String(String),
Oct 27 00:42:08.546 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 27 00:42:08.546 INFO kablam!     |
Oct 27 00:42:08.547 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 27 00:42:08.547 INFO kablam! 
Oct 27 00:42:08.548 INFO kablam! warning: variant is never constructed: `Null`
Oct 27 00:42:08.548 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 27 00:42:08.549 INFO kablam!     |
Oct 27 00:42:08.550 INFO kablam! 156 |     Null, // the `null` expression
Oct 27 00:42:08.550 INFO kablam!     |     ^^^^
Oct 27 00:42:08.551 INFO kablam! 
Oct 27 00:42:08.551 INFO kablam! warning: variant is never constructed: `Array`
Oct 27 00:42:08.552 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 27 00:42:08.552 INFO kablam!     |
Oct 27 00:42:08.553 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 27 00:42:08.553 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 27 00:42:08.553 INFO kablam! 
Oct 27 00:42:08.553 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 27 00:42:08.553 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 27 00:42:08.553 INFO kablam!     |
Oct 27 00:42:08.553 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 27 00:42:08.553 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 27 00:42:08.553 INFO kablam! 
Oct 27 00:42:08.553 INFO kablam! warning: variant is never constructed: `Object`
Oct 27 00:42:08.553 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 27 00:42:08.553 INFO kablam!     |
Oct 27 00:42:08.553 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 27 00:42:08.553 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 00:42:08.553 INFO kablam! 
Oct 27 00:42:08.553 INFO kablam! warning: method is never used: `dealloc`
Oct 27 00:42:08.553 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 27 00:42:08.553 INFO kablam!    |
Oct 27 00:42:08.553 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 27 00:42:08.553 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 00:42:08.553 INFO kablam! 
Oct 27 00:42:08.770 INFO kablam! warning: variant is never constructed: `String`
Oct 27 00:42:08.770 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 27 00:42:08.770 INFO kablam!     |
Oct 27 00:42:08.770 INFO kablam! 154 |     String(String),
Oct 27 00:42:08.770 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 27 00:42:08.770 INFO kablam!     |
Oct 27 00:42:08.770 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 27 00:42:08.770 INFO kablam! 
Oct 27 00:42:08.770 INFO kablam! warning: variant is never constructed: `Null`
Oct 27 00:42:08.770 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 27 00:42:08.770 INFO kablam!     |
Oct 27 00:42:08.770 INFO kablam! 156 |     Null, // the `null` expression
Oct 27 00:42:08.770 INFO kablam!     |     ^^^^
Oct 27 00:42:08.770 INFO kablam! 
Oct 27 00:42:08.770 INFO kablam! warning: variant is never constructed: `Array`
Oct 27 00:42:08.770 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 27 00:42:08.770 INFO kablam!     |
Oct 27 00:42:08.770 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 27 00:42:08.770 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 27 00:42:08.770 INFO kablam! 
Oct 27 00:42:08.770 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 27 00:42:08.770 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 27 00:42:08.770 INFO kablam!     |
Oct 27 00:42:08.770 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 27 00:42:08.770 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 27 00:42:08.770 INFO kablam! 
Oct 27 00:42:08.774 INFO kablam! warning: variant is never constructed: `Object`
Oct 27 00:42:08.774 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 27 00:42:08.774 INFO kablam!     |
Oct 27 00:42:08.774 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 27 00:42:08.774 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 00:42:08.774 INFO kablam! 
Oct 27 00:42:08.774 INFO kablam! warning: method is never used: `dealloc`
Oct 27 00:42:08.774 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 27 00:42:08.774 INFO kablam!    |
Oct 27 00:42:08.774 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 27 00:42:08.774 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 00:42:08.774 INFO kablam! 
Oct 27 00:42:08.862 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.38s
Oct 27 00:42:08.865 INFO kablam! su: No module specific data is present
Oct 27 00:42:10.045 INFO running `"docker" "rm" "-f" "9a6e74656d23e340858800dc9345beec04215f1fab263b39ec0fb0d9e129ee6f"`
Oct 27 00:42:10.399 INFO blam! 9a6e74656d23e340858800dc9345beec04215f1fab263b39ec0fb0d9e129ee6f