[INFO] updating cached repository memoryleak47/constraint-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/memoryleak47/constraint-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/memoryleak47/constraint-lang" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/memoryleak47/constraint-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/memoryleak47/constraint-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/memoryleak47/constraint-lang" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/memoryleak47/constraint-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/memoryleak47/constraint-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e41273373d8ed4f48e33e768eec95f58b0206b1
[INFO] sha for GitHub repo memoryleak47/constraint-lang: 7e41273373d8ed4f48e33e768eec95f58b0206b1
[INFO] validating manifest of memoryleak47/constraint-lang on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of memoryleak47/constraint-lang on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing memoryleak47/constraint-lang
[INFO] finished frobbing memoryleak47/constraint-lang
[INFO] frobbed toml for memoryleak47/constraint-lang written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/memoryleak47/constraint-lang/Cargo.toml
[INFO] started frobbing memoryleak47/constraint-lang
[INFO] finished frobbing memoryleak47/constraint-lang
[INFO] frobbed toml for memoryleak47/constraint-lang written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/memoryleak47/constraint-lang/Cargo.toml
[INFO] crate memoryleak47/constraint-lang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking memoryleak47/constraint-lang against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-2/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/memoryleak47/constraint-lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ad71e28f4495ac978624a06d06fecee5a3f2afb1a753931fee58e51c38a39f9
[INFO] running `"docker" "start" "-a" "1ad71e28f4495ac978624a06d06fecee5a3f2afb1a753931fee58e51c38a39f9"`
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking productivity-lang-compiler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/ast/mod.rs:154:2
[INFO] [stderr]     |
[INFO] [stderr] 154 |     String(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]    --> src/ast/mod.rs:156:2
[INFO] [stderr]     |
[INFO] [stderr] 156 |     Null, // the `null` expression
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]    --> src/ast/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Array(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]    --> src/ast/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Tuple(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]    --> src/ast/mod.rs:161:2
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/ast/mod.rs:154:2
[INFO] [stderr]     |
[INFO] [stderr] 154 |     String(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]    --> src/ast/mod.rs:156:2
[INFO] [stderr]     |
[INFO] [stderr] 156 |     Null, // the `null` expression
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]    --> src/ast/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Array(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]    --> src/ast/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Tuple(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]    --> src/ast/mod.rs:161:2
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dealloc`
[INFO] [stderr]   --> src/exec/heap.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dealloc`
[INFO] [stderr]   --> src/exec/heap.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `"docker" "inspect" "1ad71e28f4495ac978624a06d06fecee5a3f2afb1a753931fee58e51c38a39f9"`
[INFO] running `"docker" "rm" "-f" "1ad71e28f4495ac978624a06d06fecee5a3f2afb1a753931fee58e51c38a39f9"`
[INFO] [stdout] 1ad71e28f4495ac978624a06d06fecee5a3f2afb1a753931fee58e51c38a39f9