Oct 12 17:32:57.155 INFO checking memoryleak47/constraint-lang against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 17:32:57.156 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 17:32:57.636 INFO blam! 347a95d67a52dc91265af3ee7c9563f0decc11533260f27b4775bef89e7b1f84
Oct 12 17:32:57.640 INFO running `"docker" "start" "-a" "347a95d67a52dc91265af3ee7c9563f0decc11533260f27b4775bef89e7b1f84"`
Oct 12 17:32:58.906 INFO kablam! usermod: no changes
Oct 12 17:32:58.980 INFO kablam!     Checking libc v0.2.39
Oct 12 17:33:00.564 INFO kablam!     Checking memchr v1.0.2
Oct 12 17:33:00.944 INFO kablam!     Checking nom v3.2.1
Oct 12 17:33:03.624 INFO kablam!     Checking productivity-lang-compiler v0.1.0 (/source)
Oct 12 17:33:07.516 INFO kablam! warning: variant is never constructed: `String`
Oct 12 17:33:07.516 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam! 154 |     String(String),
Oct 12 17:33:07.516 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.516 INFO kablam! warning: variant is never constructed: `Null`
Oct 12 17:33:07.516 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam! 156 |     Null, // the `null` expression
Oct 12 17:33:07.516 INFO kablam!     |     ^^^^
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.516 INFO kablam! warning: variant is never constructed: `Array`
Oct 12 17:33:07.516 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 12 17:33:07.516 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.516 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 12 17:33:07.516 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 12 17:33:07.516 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.516 INFO kablam! warning: variant is never constructed: `Object`
Oct 12 17:33:07.516 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 12 17:33:07.516 INFO kablam!     |
Oct 12 17:33:07.516 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 12 17:33:07.516 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.516 INFO kablam! warning: method is never used: `dealloc`
Oct 12 17:33:07.516 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 12 17:33:07.516 INFO kablam!    |
Oct 12 17:33:07.516 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 12 17:33:07.516 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:33:07.516 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: variant is never constructed: `String`
Oct 12 17:33:07.697 INFO kablam!    --> src/ast/mod.rs:154:2
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam! 154 |     String(String),
Oct 12 17:33:07.697 INFO kablam!     |     ^^^^^^^^^^^^^^
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: variant is never constructed: `Null`
Oct 12 17:33:07.697 INFO kablam!    --> src/ast/mod.rs:156:2
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam! 156 |     Null, // the `null` expression
Oct 12 17:33:07.697 INFO kablam!     |     ^^^^
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: variant is never constructed: `Array`
Oct 12 17:33:07.697 INFO kablam!    --> src/ast/mod.rs:159:2
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam! 159 |     Array(Vec<Expr>),
Oct 12 17:33:07.697 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: variant is never constructed: `Tuple`
Oct 12 17:33:07.697 INFO kablam!    --> src/ast/mod.rs:160:2
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam! 160 |     Tuple(Vec<Expr>),
Oct 12 17:33:07.697 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: variant is never constructed: `Object`
Oct 12 17:33:07.697 INFO kablam!    --> src/ast/mod.rs:161:2
Oct 12 17:33:07.697 INFO kablam!     |
Oct 12 17:33:07.697 INFO kablam! 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Oct 12 17:33:07.697 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.697 INFO kablam! warning: method is never used: `dealloc`
Oct 12 17:33:07.697 INFO kablam!   --> src/exec/heap.rs:27:2
Oct 12 17:33:07.697 INFO kablam!    |
Oct 12 17:33:07.697 INFO kablam! 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Oct 12 17:33:07.697 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:33:07.697 INFO kablam! 
Oct 12 17:33:07.742 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.81s
Oct 12 17:33:07.745 INFO kablam! su: No module specific data is present
Oct 12 17:33:08.806 INFO running `"docker" "rm" "-f" "347a95d67a52dc91265af3ee7c9563f0decc11533260f27b4775bef89e7b1f84"`
Oct 12 17:33:09.108 INFO blam! 347a95d67a52dc91265af3ee7c9563f0decc11533260f27b4775bef89e7b1f84