Dec 04 14:14:38.884 INFO checking memoryleak47/constraint-lang against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:14:38.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 14:14:39.361 INFO [stdout] 4c7eaa126a89e6afab6f28d468823da6f152be09d5634d9da86681f68406707f
Dec 04 14:14:39.363 INFO running `"docker" "start" "-a" "4c7eaa126a89e6afab6f28d468823da6f152be09d5634d9da86681f68406707f"`
Dec 04 14:14:40.969 INFO [stderr] usermod: no changes
Dec 04 14:14:41.055 INFO [stderr]     Checking libc v0.2.39
Dec 04 14:14:42.355 INFO [stderr]     Checking memchr v1.0.2
Dec 04 14:14:42.667 INFO [stderr]     Checking nom v3.2.1
Dec 04 14:14:44.959 INFO [stderr]     Checking productivity-lang-compiler v0.1.0 (/source)
Dec 04 14:14:48.983 INFO [stderr] warning: variant is never constructed: `String`
Dec 04 14:14:48.983 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr] 154 |     String(String),
Dec 04 14:14:48.983 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:48.983 INFO [stderr] warning: variant is never constructed: `Null`
Dec 04 14:14:48.983 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr] 156 |     Null, // the `null` expression
Dec 04 14:14:48.983 INFO [stderr]     |     ^^^^
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:48.983 INFO [stderr] warning: variant is never constructed: `Array`
Dec 04 14:14:48.983 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 04 14:14:48.983 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:48.983 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 04 14:14:48.983 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 04 14:14:48.983 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:48.983 INFO [stderr] warning: variant is never constructed: `Object`
Dec 04 14:14:48.983 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 04 14:14:48.983 INFO [stderr]     |
Dec 04 14:14:48.983 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 04 14:14:48.983 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:48.983 INFO [stderr] warning: method is never used: `dealloc`
Dec 04 14:14:48.983 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 04 14:14:48.983 INFO [stderr]    |
Dec 04 14:14:48.983 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 04 14:14:48.983 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:14:48.983 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: variant is never constructed: `String`
Dec 04 14:14:49.017 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr] 154 |     String(String),
Dec 04 14:14:49.017 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 14:14:49.017 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: variant is never constructed: `Null`
Dec 04 14:14:49.017 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr] 156 |     Null, // the `null` expression
Dec 04 14:14:49.017 INFO [stderr]     |     ^^^^
Dec 04 14:14:49.017 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: variant is never constructed: `Array`
Dec 04 14:14:49.017 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 04 14:14:49.017 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 04 14:14:49.017 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 04 14:14:49.017 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 04 14:14:49.017 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 04 14:14:49.017 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: variant is never constructed: `Object`
Dec 04 14:14:49.017 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 04 14:14:49.017 INFO [stderr]     |
Dec 04 14:14:49.017 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 04 14:14:49.017 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:14:49.017 INFO [stderr] 
Dec 04 14:14:49.017 INFO [stderr] warning: method is never used: `dealloc`
Dec 04 14:14:49.017 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 04 14:14:49.017 INFO [stderr]    |
Dec 04 14:14:49.018 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 04 14:14:49.018 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:14:49.018 INFO [stderr] 
Dec 04 14:14:49.085 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.07s
Dec 04 14:14:49.085 INFO [stderr] su: No module specific data is present
Dec 04 14:14:50.220 INFO running `"docker" "inspect" "4c7eaa126a89e6afab6f28d468823da6f152be09d5634d9da86681f68406707f"`
Dec 04 14:14:50.633 INFO running `"docker" "rm" "-f" "4c7eaa126a89e6afab6f28d468823da6f152be09d5634d9da86681f68406707f"`
Dec 04 14:14:50.904 INFO [stdout] 4c7eaa126a89e6afab6f28d468823da6f152be09d5634d9da86681f68406707f