Dec 11 13:45:59.455 INFO checking memoryleak47/constraint-lang against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:45:59.455 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 13:45:59.812 INFO [stdout] 83ba8fab56d9176154ef4283610734f281d2c6f16c5a0f7184e0bb586a27a4b2
Dec 11 13:45:59.818 INFO running `"docker" "start" "-a" "83ba8fab56d9176154ef4283610734f281d2c6f16c5a0f7184e0bb586a27a4b2"`
Dec 11 13:46:01.247 INFO [stderr] usermod: no changes
Dec 11 13:46:01.310 INFO [stderr]     Checking libc v0.2.39
Dec 11 13:46:02.592 INFO [stderr]     Checking memchr v1.0.2
Dec 11 13:46:02.964 INFO [stderr]     Checking nom v3.2.1
Dec 11 13:46:05.408 INFO [stderr]     Checking productivity-lang-compiler v0.1.0 (/source)
Dec 11 13:46:08.700 INFO [stderr] warning: variant is never constructed: `String`
Dec 11 13:46:08.700 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 11 13:46:08.700 INFO [stderr]     |
Dec 11 13:46:08.700 INFO [stderr] 154 |     String(String),
Dec 11 13:46:08.700 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 11 13:46:08.700 INFO [stderr]     |
Dec 11 13:46:08.700 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.701 INFO [stderr] warning: variant is never constructed: `Null`
Dec 11 13:46:08.701 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 11 13:46:08.701 INFO [stderr]     |
Dec 11 13:46:08.701 INFO [stderr] 156 |     Null, // the `null` expression
Dec 11 13:46:08.701 INFO [stderr]     |     ^^^^
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.701 INFO [stderr] warning: variant is never constructed: `Array`
Dec 11 13:46:08.701 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 11 13:46:08.701 INFO [stderr]     |
Dec 11 13:46:08.701 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 11 13:46:08.701 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.701 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 11 13:46:08.701 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 11 13:46:08.701 INFO [stderr]     |
Dec 11 13:46:08.701 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 11 13:46:08.701 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.701 INFO [stderr] warning: variant is never constructed: `Object`
Dec 11 13:46:08.701 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 11 13:46:08.701 INFO [stderr]     |
Dec 11 13:46:08.701 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 11 13:46:08.701 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.701 INFO [stderr] warning: method is never used: `dealloc`
Dec 11 13:46:08.701 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 11 13:46:08.701 INFO [stderr]    |
Dec 11 13:46:08.701 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 11 13:46:08.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:46:08.701 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: variant is never constructed: `String`
Dec 11 13:46:08.896 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr] 154 |     String(String),
Dec 11 13:46:08.896 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: variant is never constructed: `Null`
Dec 11 13:46:08.896 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr] 156 |     Null, // the `null` expression
Dec 11 13:46:08.896 INFO [stderr]     |     ^^^^
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: variant is never constructed: `Array`
Dec 11 13:46:08.896 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 11 13:46:08.896 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 11 13:46:08.896 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 11 13:46:08.896 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: variant is never constructed: `Object`
Dec 11 13:46:08.896 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 11 13:46:08.896 INFO [stderr]     |
Dec 11 13:46:08.896 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 11 13:46:08.896 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.896 INFO [stderr] warning: method is never used: `dealloc`
Dec 11 13:46:08.896 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 11 13:46:08.896 INFO [stderr]    |
Dec 11 13:46:08.896 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 11 13:46:08.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:46:08.896 INFO [stderr] 
Dec 11 13:46:08.940 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.67s
Dec 11 13:46:08.952 INFO [stderr] su: No module specific data is present
Dec 11 13:46:09.678 INFO running `"docker" "inspect" "83ba8fab56d9176154ef4283610734f281d2c6f16c5a0f7184e0bb586a27a4b2"`
Dec 11 13:46:09.990 INFO running `"docker" "rm" "-f" "83ba8fab56d9176154ef4283610734f281d2c6f16c5a0f7184e0bb586a27a4b2"`
Dec 11 13:46:10.305 INFO [stdout] 83ba8fab56d9176154ef4283610734f281d2c6f16c5a0f7184e0bb586a27a4b2