[INFO] updating cached repository xkapastel/unitype [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/xkapastel/unitype [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/xkapastel/unitype" "work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/xkapastel/unitype" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xkapastel/unitype"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xkapastel/unitype'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 02ec4aac95917de7be855eac5ce5964621a9293c [INFO] sha for GitHub repo xkapastel/unitype: 02ec4aac95917de7be855eac5ce5964621a9293c [INFO] validating manifest of xkapastel/unitype on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of xkapastel/unitype on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing xkapastel/unitype [INFO] finished frobbing xkapastel/unitype [INFO] frobbed toml for xkapastel/unitype written to work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype/Cargo.toml [INFO] started frobbing xkapastel/unitype [INFO] finished frobbing xkapastel/unitype [INFO] frobbed toml for xkapastel/unitype written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xkapastel/unitype/Cargo.toml [INFO] crate xkapastel/unitype already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing xkapastel/unitype against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype:/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 8baceda58970d5c22ac66f82d7002470ad403fc515b7fe9922f569ec56971a2e [INFO] running `"docker" "start" "-a" "8baceda58970d5c22ac66f82d7002470ad403fc515b7fe9922f569ec56971a2e"` [INFO] [stderr] Compiling unitype v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:36:22 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn read(&self, key: &str) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:40:27 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn write(&mut self, key: &str, value: Rc) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/dictionary.rs:40:38 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn write(&mut self, key: &str, value: Rc) -> Option> { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:44:28 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn delete(&mut self, key: &str) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `src` [INFO] [stderr] --> src/driver/pure/mod.rs:52:31 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn normalize(&mut self, src: &str, ctx: &Dictionary) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_src` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/driver/pure/mod.rs:52:42 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn normalize(&mut self, src: &str, ctx: &Dictionary) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/driver/pure/heap.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | for i in 0..capacity { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `nodes` [INFO] [stderr] --> src/driver/pure/heap.rs:29:3 [INFO] [stderr] | [INFO] [stderr] 29 | nodes: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `time` [INFO] [stderr] --> src/driver/pure/heap.rs:30:3 [INFO] [stderr] | [INFO] [stderr] 30 | time: u64, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `object` [INFO] [stderr] --> src/driver/pure/heap.rs:34:3 [INFO] [stderr] | [INFO] [stderr] 34 | object: Object, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `timestamp` [INFO] [stderr] --> src/driver/pure/heap.rs:35:3 [INFO] [stderr] | [INFO] [stderr] 35 | timestamp: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `is_marked` [INFO] [stderr] --> src/driver/pure/heap.rs:36:3 [INFO] [stderr] | [INFO] [stderr] 36 | is_marked: bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Id` [INFO] [stderr] --> src/driver/pure/heap.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | Id, [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `App` [INFO] [stderr] --> src/driver/pure/heap.rs:41:3 [INFO] [stderr] | [INFO] [stderr] 41 | App, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Box` [INFO] [stderr] --> src/driver/pure/heap.rs:42:3 [INFO] [stderr] | [INFO] [stderr] 42 | Box, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cat` [INFO] [stderr] --> src/driver/pure/heap.rs:43:3 [INFO] [stderr] | [INFO] [stderr] 43 | Cat, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Copy` [INFO] [stderr] --> src/driver/pure/heap.rs:44:3 [INFO] [stderr] | [INFO] [stderr] 44 | Copy, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Drop` [INFO] [stderr] --> src/driver/pure/heap.rs:45:3 [INFO] [stderr] | [INFO] [stderr] 45 | Drop, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Swap` [INFO] [stderr] --> src/driver/pure/heap.rs:46:3 [INFO] [stderr] | [INFO] [stderr] 46 | Swap, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Abs` [INFO] [stderr] --> src/driver/pure/heap.rs:47:3 [INFO] [stderr] | [INFO] [stderr] 47 | Abs(Gc), [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Seq` [INFO] [stderr] --> src/driver/pure/heap.rs:48:3 [INFO] [stderr] | [INFO] [stderr] 48 | Seq(Gc, Gc), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Var` [INFO] [stderr] --> src/driver/pure/heap.rs:49:3 [INFO] [stderr] | [INFO] [stderr] 49 | Var(Rc), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Tag` [INFO] [stderr] --> src/driver/pure/heap.rs:50:3 [INFO] [stderr] | [INFO] [stderr] 50 | Tag(Rc), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `put` [INFO] [stderr] --> src/driver/pure/heap.rs:65:3 [INFO] [stderr] | [INFO] [stderr] 65 | fn put(&mut self, object: Object) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_ref` [INFO] [stderr] --> src/driver/pure/heap.rs:85:3 [INFO] [stderr] | [INFO] [stderr] 85 | fn get_ref(&self, pointer: Gc) -> Result<&Object> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_id` [INFO] [stderr] --> src/driver/pure/heap.rs:99:3 [INFO] [stderr] | [INFO] [stderr] 99 | pub fn new_id(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_app` [INFO] [stderr] --> src/driver/pure/heap.rs:104:3 [INFO] [stderr] | [INFO] [stderr] 104 | pub fn new_app(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_box` [INFO] [stderr] --> src/driver/pure/heap.rs:109:3 [INFO] [stderr] | [INFO] [stderr] 109 | pub fn new_box(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_cat` [INFO] [stderr] --> src/driver/pure/heap.rs:114:3 [INFO] [stderr] | [INFO] [stderr] 114 | pub fn new_cat(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_copy` [INFO] [stderr] --> src/driver/pure/heap.rs:119:3 [INFO] [stderr] | [INFO] [stderr] 119 | pub fn new_copy(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_drop` [INFO] [stderr] --> src/driver/pure/heap.rs:124:3 [INFO] [stderr] | [INFO] [stderr] 124 | pub fn new_drop(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_swap` [INFO] [stderr] --> src/driver/pure/heap.rs:129:3 [INFO] [stderr] | [INFO] [stderr] 129 | pub fn new_swap(&mut self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_abs` [INFO] [stderr] --> src/driver/pure/heap.rs:134:3 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn new_abs(&mut self, body: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_seq` [INFO] [stderr] --> src/driver/pure/heap.rs:139:3 [INFO] [stderr] | [INFO] [stderr] 139 | pub fn new_seq(&mut self, fst: Gc, snd: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_var` [INFO] [stderr] --> src/driver/pure/heap.rs:144:3 [INFO] [stderr] | [INFO] [stderr] 144 | pub fn new_var(&mut self, value: Rc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_tag` [INFO] [stderr] --> src/driver/pure/heap.rs:149:3 [INFO] [stderr] | [INFO] [stderr] 149 | pub fn new_tag(&mut self, value: Rc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_id` [INFO] [stderr] --> src/driver/pure/heap.rs:154:3 [INFO] [stderr] | [INFO] [stderr] 154 | pub fn is_id(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_app` [INFO] [stderr] --> src/driver/pure/heap.rs:165:3 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn is_app(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_box` [INFO] [stderr] --> src/driver/pure/heap.rs:176:3 [INFO] [stderr] | [INFO] [stderr] 176 | pub fn is_box(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_cat` [INFO] [stderr] --> src/driver/pure/heap.rs:187:3 [INFO] [stderr] | [INFO] [stderr] 187 | pub fn is_cat(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_copy` [INFO] [stderr] --> src/driver/pure/heap.rs:198:3 [INFO] [stderr] | [INFO] [stderr] 198 | pub fn is_copy(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_drop` [INFO] [stderr] --> src/driver/pure/heap.rs:209:3 [INFO] [stderr] | [INFO] [stderr] 209 | pub fn is_drop(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_swap` [INFO] [stderr] --> src/driver/pure/heap.rs:220:3 [INFO] [stderr] | [INFO] [stderr] 220 | pub fn is_swap(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_abs` [INFO] [stderr] --> src/driver/pure/heap.rs:231:3 [INFO] [stderr] | [INFO] [stderr] 231 | pub fn is_abs(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_seq` [INFO] [stderr] --> src/driver/pure/heap.rs:242:3 [INFO] [stderr] | [INFO] [stderr] 242 | pub fn is_seq(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_var` [INFO] [stderr] --> src/driver/pure/heap.rs:253:3 [INFO] [stderr] | [INFO] [stderr] 253 | pub fn is_var(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_tag` [INFO] [stderr] --> src/driver/pure/heap.rs:264:3 [INFO] [stderr] | [INFO] [stderr] 264 | pub fn is_tag(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_var_value` [INFO] [stderr] --> src/driver/pure/heap.rs:275:3 [INFO] [stderr] | [INFO] [stderr] 275 | pub fn get_var_value(&self, pointer: Gc) -> Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_tag_value` [INFO] [stderr] --> src/driver/pure/heap.rs:286:3 [INFO] [stderr] | [INFO] [stderr] 286 | pub fn get_tag_value(&self, pointer: Gc) -> Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_abs_body` [INFO] [stderr] --> src/driver/pure/heap.rs:297:3 [INFO] [stderr] | [INFO] [stderr] 297 | pub fn get_abs_body(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_seq_fst` [INFO] [stderr] --> src/driver/pure/heap.rs:308:3 [INFO] [stderr] | [INFO] [stderr] 308 | pub fn get_seq_fst(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_seq_snd` [INFO] [stderr] --> src/driver/pure/heap.rs:319:3 [INFO] [stderr] | [INFO] [stderr] 319 | pub fn get_seq_snd(&self, pointer: Gc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mark` [INFO] [stderr] --> src/driver/pure/heap.rs:330:3 [INFO] [stderr] | [INFO] [stderr] 330 | pub fn mark(&mut self, root: Gc) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sweep` [INFO] [stderr] --> src/driver/pure/heap.rs:356:3 [INFO] [stderr] | [INFO] [stderr] 356 | pub fn sweep(&mut self) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `read` [INFO] [stderr] --> src/driver/pure/codec.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | pub fn read(src: &str, heap: &mut Heap) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print` [INFO] [stderr] --> src/driver/pure/codec.rs:86:1 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn print(pointer: Gc, heap: &Heap, buffer: &mut String) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `heap` [INFO] [stderr] --> src/driver/pure/mod.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | heap: Heap, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `cache` [INFO] [stderr] --> src/driver/pure/mod.rs:41:3 [INFO] [stderr] | [INFO] [stderr] 41 | cache: HashMap, Gc>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.31s [INFO] running `"docker" "inspect" "8baceda58970d5c22ac66f82d7002470ad403fc515b7fe9922f569ec56971a2e"` [INFO] running `"docker" "rm" "-f" "8baceda58970d5c22ac66f82d7002470ad403fc515b7fe9922f569ec56971a2e"` [INFO] [stdout] 8baceda58970d5c22ac66f82d7002470ad403fc515b7fe9922f569ec56971a2e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 0c1b57ac65879d3234263f69101eb01ed96c75e6eeca02d9e0fd5a8784894299 [INFO] running `"docker" "start" "-a" "0c1b57ac65879d3234263f69101eb01ed96c75e6eeca02d9e0fd5a8784894299"` [INFO] [stderr] Compiling unitype v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:36:22 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn read(&self, key: &str) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:40:27 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn write(&mut self, key: &str, value: Rc) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/dictionary.rs:40:38 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn write(&mut self, key: &str, value: Rc) -> Option> { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/dictionary.rs:44:28 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn delete(&mut self, key: &str) -> Option> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `src` [INFO] [stderr] --> src/driver/pure/mod.rs:52:31 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn normalize(&mut self, src: &str, ctx: &Dictionary) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_src` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/driver/pure/mod.rs:52:42 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn normalize(&mut self, src: &str, ctx: &Dictionary) -> Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/driver/pure/heap.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | for i in 0..capacity { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `is_marked` [INFO] [stderr] --> src/driver/pure/heap.rs:36:3 [INFO] [stderr] | [INFO] [stderr] 36 | is_marked: bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Tag` [INFO] [stderr] --> src/driver/pure/heap.rs:50:3 [INFO] [stderr] | [INFO] [stderr] 50 | Tag(Rc), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new_tag` [INFO] [stderr] --> src/driver/pure/heap.rs:149:3 [INFO] [stderr] | [INFO] [stderr] 149 | pub fn new_tag(&mut self, value: Rc) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mark` [INFO] [stderr] --> src/driver/pure/heap.rs:330:3 [INFO] [stderr] | [INFO] [stderr] 330 | pub fn mark(&mut self, root: Gc) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sweep` [INFO] [stderr] --> src/driver/pure/heap.rs:356:3 [INFO] [stderr] | [INFO] [stderr] 356 | pub fn sweep(&mut self) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `heap` [INFO] [stderr] --> src/driver/pure/mod.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | heap: Heap, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `cache` [INFO] [stderr] --> src/driver/pure/mod.rs:41:3 [INFO] [stderr] | [INFO] [stderr] 41 | cache: HashMap, Gc>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `"docker" "inspect" "0c1b57ac65879d3234263f69101eb01ed96c75e6eeca02d9e0fd5a8784894299"` [INFO] running `"docker" "rm" "-f" "0c1b57ac65879d3234263f69101eb01ed96c75e6eeca02d9e0fd5a8784894299"` [INFO] [stdout] 0c1b57ac65879d3234263f69101eb01ed96c75e6eeca02d9e0fd5a8784894299 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xkapastel/unitype:/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=warn" "-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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] a37af856eb7bb2c4bde267e79c04399fb4fbfaf80bd5132734976d8b566f7b53 [INFO] running `"docker" "start" "-a" "a37af856eb7bb2c4bde267e79c04399fb4fbfaf80bd5132734976d8b566f7b53"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/unitype-874d7e3285c2cafe [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test driver::pure::codec::codec_trivial ... ok [INFO] [stdout] test driver::pure::pure_driver_trivial ... FAILED [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- driver::pure::pure_driver_trivial stdout ---- [INFO] [stdout] thread 'driver::pure::pure_driver_trivial' panicked at 'called `Result::unwrap()` on an `Err` value: Todo', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x560e8bccd69b - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x560e8bccd69b - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x560e8bccd69b - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x560e8bccd69b - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x560e8bccd69b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x560e8bccd30a - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x560e8bccde10 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x560e8bccd992 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x560e8bccd876 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x560e8bce386d - core::panicking::panic_fmt::h2daf88b2616ca2b2 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x560e8bc6f57b - core::result::unwrap_failed::h5029b72765f25ff8 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x560e8bc70c07 - core::result::Result::unwrap::hd6e4e9e710e592f9 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800 [INFO] [stdout] 12: 0x560e8bc72455 - unitype::driver::pure::pure_driver_trivial::{{closure}}::h5f95d407175fa407 [INFO] [stdout] at src/driver/pure/mod.rs:62 [INFO] [stdout] 13: 0x560e8bc7218b - unitype::driver::pure::pure_driver_trivial::h5e8e5aede8aaab73 [INFO] [stdout] at src/driver/pure/mod.rs:65 [INFO] [stdout] 14: 0x560e8bc720ca - unitype::driver::pure::pure_driver_trivial::{{closure}}::hd8c0934261ee1bfc [INFO] [stdout] at src/driver/pure/mod.rs:58 [INFO] [stdout] 15: 0x560e8bc7e31e - core::ops::function::FnOnce::call_once::h0c28ef0f3eddde21 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 16: 0x560e8bc902df - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 17: 0x560e8bcd038a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 18: 0x560e8bcaa8d8 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 19: 0x560e8bcaa8d8 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 20: 0x560e8bcaa8d8 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 21: 0x560e8bc85755 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 22: 0x560e8bc89815 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 23: 0x560e8bc89815 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 24: 0x560e8bc89815 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 25: 0x560e8bcd038a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 26: 0x560e8bc89f12 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 27: 0x560e8bc89f12 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 28: 0x560e8bc89f12 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 29: 0x560e8bc89f12 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 30: 0x560e8bcc343f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 31: 0x560e8bccfae0 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 32: 0x560e8bccfae0 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 33: 0x560e8bccfae0 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 34: 0x7f12afca24a4 - start_thread [INFO] [stdout] 35: 0x7f12af7cdd0f - __clone [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] driver::pure::pure_driver_trivial [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "a37af856eb7bb2c4bde267e79c04399fb4fbfaf80bd5132734976d8b566f7b53"` [INFO] running `"docker" "rm" "-f" "a37af856eb7bb2c4bde267e79c04399fb4fbfaf80bd5132734976d8b566f7b53"` [INFO] [stdout] a37af856eb7bb2c4bde267e79c04399fb4fbfaf80bd5132734976d8b566f7b53