Dec 19 12:47:00.173 INFO checking memoryleak47/constraint-lang against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:47:00.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/memoryleak47/constraint-lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:47:00.607 INFO [stdout] 5e26fb122c5c3f7b7edce3681b3290c6466b62ab0222e5a184d5dca382c40fe3
Dec 19 12:47:00.614 INFO running `"docker" "start" "-a" "5e26fb122c5c3f7b7edce3681b3290c6466b62ab0222e5a184d5dca382c40fe3"`
Dec 19 12:47:02.240 INFO [stderr]     Checking libc v0.2.39
Dec 19 12:47:03.574 INFO [stderr]     Checking memchr v1.0.2
Dec 19 12:47:03.849 INFO [stderr]     Checking nom v3.2.1
Dec 19 12:47:06.061 INFO [stderr]     Checking productivity-lang-compiler v0.1.0 (/opt/crater/workdir)
Dec 19 12:47:08.740 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 12:47:08.740 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 19 12:47:08.740 INFO [stderr]     |
Dec 19 12:47:08.740 INFO [stderr] 154 |     String(String),
Dec 19 12:47:08.740 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 12:47:08.741 INFO [stderr]     |
Dec 19 12:47:08.741 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:47:08.741 INFO [stderr] 
Dec 19 12:47:08.741 INFO [stderr] warning: variant is never constructed: `Null`
Dec 19 12:47:08.741 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 19 12:47:08.741 INFO [stderr]     |
Dec 19 12:47:08.741 INFO [stderr] 156 |     Null, // the `null` expression
Dec 19 12:47:08.741 INFO [stderr]     |     ^^^^
Dec 19 12:47:08.741 INFO [stderr] 
Dec 19 12:47:08.741 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 12:47:08.741 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 19 12:47:08.741 INFO [stderr]     |
Dec 19 12:47:08.741 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 19 12:47:08.741 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.741 INFO [stderr] 
Dec 19 12:47:08.741 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 19 12:47:08.741 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 19 12:47:08.741 INFO [stderr]     |
Dec 19 12:47:08.741 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 19 12:47:08.741 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.741 INFO [stderr] 
Dec 19 12:47:08.741 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 12:47:08.741 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 19 12:47:08.741 INFO [stderr]     |
Dec 19 12:47:08.741 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 19 12:47:08.741 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.741 INFO [stderr] 
Dec 19 12:47:08.741 INFO [stderr] warning: method is never used: `dealloc`
Dec 19 12:47:08.741 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 19 12:47:08.741 INFO [stderr]    |
Dec 19 12:47:08.741 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 19 12:47:08.741 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.748 INFO [stderr] 
Dec 19 12:47:09.388 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 12:47:09.388 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 19 12:47:09.388 INFO [stderr]     |
Dec 19 12:47:09.388 INFO [stderr] 154 |     String(String),
Dec 19 12:47:09.388 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 12:47:09.388 INFO [stderr]     |
Dec 19 12:47:09.388 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:47:09.388 INFO [stderr] 
Dec 19 12:47:09.388 INFO [stderr] warning: variant is never constructed: `Null`
Dec 19 12:47:09.388 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 19 12:47:09.388 INFO [stderr]     |
Dec 19 12:47:09.388 INFO [stderr] 156 |     Null, // the `null` expression
Dec 19 12:47:09.388 INFO [stderr]     |     ^^^^
Dec 19 12:47:09.388 INFO [stderr] 
Dec 19 12:47:09.388 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 12:47:09.388 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 19 12:47:09.388 INFO [stderr]     |
Dec 19 12:47:09.389 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 19 12:47:09.389 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:09.389 INFO [stderr] 
Dec 19 12:47:09.389 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 19 12:47:09.389 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 19 12:47:09.389 INFO [stderr]     |
Dec 19 12:47:09.389 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 19 12:47:09.389 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:09.389 INFO [stderr] 
Dec 19 12:47:09.389 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 12:47:09.389 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 19 12:47:09.389 INFO [stderr]     |
Dec 19 12:47:09.389 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 19 12:47:09.389 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:09.389 INFO [stderr] 
Dec 19 12:47:09.389 INFO [stderr] warning: method is never used: `dealloc`
Dec 19 12:47:09.389 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 19 12:47:09.389 INFO [stderr]    |
Dec 19 12:47:09.389 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 19 12:47:09.389 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:09.389 INFO [stderr] 
Dec 19 12:47:09.443 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.26s
Dec 19 12:47:10.330 INFO running `"docker" "inspect" "5e26fb122c5c3f7b7edce3681b3290c6466b62ab0222e5a184d5dca382c40fe3"`
Dec 19 12:47:10.638 INFO running `"docker" "rm" "-f" "5e26fb122c5c3f7b7edce3681b3290c6466b62ab0222e5a184d5dca382c40fe3"`
Dec 19 12:47:10.944 INFO [stdout] 5e26fb122c5c3f7b7edce3681b3290c6466b62ab0222e5a184d5dca382c40fe3