[INFO] updating cached repository sakateka/plt [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/sakateka/plt [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/sakateka/plt" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/sakateka/plt"` [INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/sakateka/plt'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/sakateka/plt" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/sakateka/plt"` [INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/sakateka/plt'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 68d89b1c6e02bddcedbfa36c6e7a04843a46076f [INFO] sha for GitHub repo sakateka/plt: 68d89b1c6e02bddcedbfa36c6e7a04843a46076f [INFO] validating manifest of sakateka/plt 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 sakateka/plt 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 sakateka/plt [INFO] finished frobbing sakateka/plt [INFO] frobbed toml for sakateka/plt written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/sakateka/plt/Cargo.toml [INFO] started frobbing sakateka/plt [INFO] finished frobbing sakateka/plt [INFO] frobbed toml for sakateka/plt written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/sakateka/plt/Cargo.toml [INFO] crate sakateka/plt 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 sakateka/plt against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/sakateka/plt:/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] 918f6cb87067813b477366df1dfa851cf2a2616e811c00b0fd7a600df83dd13d [INFO] running `"docker" "start" "-a" "918f6cb87067813b477366df1dfa851cf2a2616e811c00b0fd7a600df83dd13d"` [INFO] [stderr] Checking itertools v0.7.7 [INFO] [stderr] Checking clap v2.29.1 [INFO] [stderr] Checking serde_yaml v0.7.3 [INFO] [stderr] Compiling serde_derive_internals v0.22.1 [INFO] [stderr] Compiling serde_derive v1.0.35 [INFO] [stderr] Checking plt v5.4.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `sdt` [INFO] [stderr] --> src/cfg.rs:246:41 [INFO] [stderr] | [INFO] [stderr] 246 | pub fn parse_production(line: &str, sdt: bool) -> io::Result> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sdt` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cfg` [INFO] [stderr] --> src/cfg.rs:695:13 [INFO] [stderr] | [INFO] [stderr] 695 | let cfg = cfg.eliminate_left_recursion(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_cfg` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rules` [INFO] [stderr] --> src/sdt.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let rules: SDTRules = match serde_yaml::from_reader(r) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_rules` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:224:13 [INFO] [stderr] | [INFO] [stderr] 224 | let mut dpda_design = DPDADesign::load(dpda_spec).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | let mut dpdt_design = DPDTDesign::load(dpdt_spec).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:227:17 [INFO] [stderr] | [INFO] [stderr] 227 | let mut text = line?; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sdt` [INFO] [stderr] --> src/cfg.rs:246:41 [INFO] [stderr] | [INFO] [stderr] 246 | pub fn parse_production(line: &str, sdt: bool) -> io::Result> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sdt` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:269:17 [INFO] [stderr] | [INFO] [stderr] 269 | let mut prod = Production::new(left.clone(), symbols); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cfg` [INFO] [stderr] --> src/cfg.rs:695:13 [INFO] [stderr] | [INFO] [stderr] 695 | let cfg = cfg.eliminate_left_recursion(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_cfg` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rules` [INFO] [stderr] --> src/sdt.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let rules: SDTRules = match serde_yaml::from_reader(r) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_rules` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:450:17 [INFO] [stderr] | [INFO] [stderr] 450 | let mut set = unit_sets.get_mut(nonterm).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:224:13 [INFO] [stderr] | [INFO] [stderr] 224 | let mut dpda_design = DPDADesign::load(dpda_spec).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | let mut dpdt_design = DPDTDesign::load(dpdt_spec).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:227:17 [INFO] [stderr] | [INFO] [stderr] 227 | let mut text = line?; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:269:17 [INFO] [stderr] | [INFO] [stderr] 269 | let mut prod = Production::new(left.clone(), symbols); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/cfg.rs:450:17 [INFO] [stderr] | [INFO] [stderr] 450 | let mut set = unit_sets.get_mut(nonterm).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_sdt` [INFO] [stderr] --> src/cfg.rs:210:5 [INFO] [stderr] | [INFO] [stderr] 210 | pub fn load_sdt(input_path: &str) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_sdt_from_reader` [INFO] [stderr] --> src/cfg.rs:219:5 [INFO] [stderr] | [INFO] [stderr] 219 | pub fn load_sdt_from_reader(r: R) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `greibach` [INFO] [stderr] --> src/cfg.rs:693:5 [INFO] [stderr] | [INFO] [stderr] 693 | pub fn greibach(&self) -> CFG { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `eliminate_left_recursion` [INFO] [stderr] --> src/cfg.rs:699:5 [INFO] [stderr] | [INFO] [stderr] 699 | pub fn eliminate_left_recursion(&self) -> CFG { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `SDT` [INFO] [stderr] --> src/sdt.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | pub struct SDT { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load` [INFO] [stderr] --> src/sdt.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn load(input_path: &str) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_from_reader` [INFO] [stderr] --> src/sdt.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | / pub fn load_from_reader(r: R) -> io::Result [INFO] [stderr] 31 | | where [INFO] [stderr] 32 | | R: ::std::marker::Sized, [INFO] [stderr] 33 | | { [INFO] [stderr] ... | [INFO] [stderr] 40 | | }) [INFO] [stderr] 41 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_sdt` [INFO] [stderr] --> src/cfg.rs:210:5 [INFO] [stderr] | [INFO] [stderr] 210 | pub fn load_sdt(input_path: &str) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_sdt_from_reader` [INFO] [stderr] --> src/cfg.rs:219:5 [INFO] [stderr] | [INFO] [stderr] 219 | pub fn load_sdt_from_reader(r: R) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `greibach` [INFO] [stderr] --> src/cfg.rs:693:5 [INFO] [stderr] | [INFO] [stderr] 693 | pub fn greibach(&self) -> CFG { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `eliminate_left_recursion` [INFO] [stderr] --> src/cfg.rs:699:5 [INFO] [stderr] | [INFO] [stderr] 699 | pub fn eliminate_left_recursion(&self) -> CFG { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `SDT` [INFO] [stderr] --> src/sdt.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | pub struct SDT { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load` [INFO] [stderr] --> src/sdt.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn load(input_path: &str) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_from_reader` [INFO] [stderr] --> src/sdt.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | / pub fn load_from_reader(r: R) -> io::Result [INFO] [stderr] 31 | | where [INFO] [stderr] 32 | | R: ::std::marker::Sized, [INFO] [stderr] 33 | | { [INFO] [stderr] ... | [INFO] [stderr] 40 | | }) [INFO] [stderr] 41 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.22s [INFO] running `"docker" "inspect" "918f6cb87067813b477366df1dfa851cf2a2616e811c00b0fd7a600df83dd13d"` [INFO] running `"docker" "rm" "-f" "918f6cb87067813b477366df1dfa851cf2a2616e811c00b0fd7a600df83dd13d"` [INFO] [stdout] 918f6cb87067813b477366df1dfa851cf2a2616e811c00b0fd7a600df83dd13d