[INFO] updating cached repository JacekPrzemieniecki/earley_parser [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/JacekPrzemieniecki/earley_parser [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/JacekPrzemieniecki/earley_parser" "work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/JacekPrzemieniecki/earley_parser" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JacekPrzemieniecki/earley_parser"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JacekPrzemieniecki/earley_parser'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 338e5c0bf2007c79f62a2f7a880f1d1448a3060d [INFO] sha for GitHub repo JacekPrzemieniecki/earley_parser: 338e5c0bf2007c79f62a2f7a880f1d1448a3060d [INFO] validating manifest of JacekPrzemieniecki/earley_parser on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of JacekPrzemieniecki/earley_parser on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing JacekPrzemieniecki/earley_parser [INFO] finished frobbing JacekPrzemieniecki/earley_parser [INFO] frobbed toml for JacekPrzemieniecki/earley_parser written to work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser/Cargo.toml [INFO] started frobbing JacekPrzemieniecki/earley_parser [INFO] finished frobbing JacekPrzemieniecki/earley_parser [INFO] frobbed toml for JacekPrzemieniecki/earley_parser written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JacekPrzemieniecki/earley_parser/Cargo.toml [INFO] crate JacekPrzemieniecki/earley_parser already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing JacekPrzemieniecki/earley_parser against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] dc0b0d4122fb2fd0a75e012840c5d88b3f7295968fcf14e3eb9567821cdb3dcc [INFO] running `"docker" "start" "-a" "dc0b0d4122fb2fd0a75e012840c5d88b3f7295968fcf14e3eb9567821cdb3dcc"` [INFO] [stderr] Compiling earley_parser v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `grammar::build_grammar` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use grammar::build_grammar; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:258:17 [INFO] [stderr] | [INFO] [stderr] 258 | let mut current_state_set = &mut next[0]; [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:227:9 [INFO] [stderr] | [INFO] [stderr] 227 | write!(s, "{}", indent); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:229:23 [INFO] [stderr] | [INFO] [stderr] 229 | true => { write!(s, "\\-"); indent.to_string() + " "}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:230:24 [INFO] [stderr] | [INFO] [stderr] 230 | false => { write!(s, "|-"); indent.to_string() + "| "} [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 232 | write!(s, "{}\n", &gram.symbols[self.value].name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:234:13 [INFO] [stderr] | [INFO] [stderr] 234 | write!(s, "{}", node.to_string(&gram, &new_indent, i == self.children.len() -1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `"docker" "inspect" "dc0b0d4122fb2fd0a75e012840c5d88b3f7295968fcf14e3eb9567821cdb3dcc"` [INFO] running `"docker" "rm" "-f" "dc0b0d4122fb2fd0a75e012840c5d88b3f7295968fcf14e3eb9567821cdb3dcc"` [INFO] [stdout] dc0b0d4122fb2fd0a75e012840c5d88b3f7295968fcf14e3eb9567821cdb3dcc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser:/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" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 1e85654aa787fde17db537ec01aaf8762c31ffc0101386ac7f7331c58ce91ffa [INFO] running `"docker" "start" "-a" "1e85654aa787fde17db537ec01aaf8762c31ffc0101386ac7f7331c58ce91ffa"` [INFO] [stderr] Compiling earley_parser v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `grammar::build_grammar` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use grammar::build_grammar; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:258:17 [INFO] [stderr] | [INFO] [stderr] 258 | let mut current_state_set = &mut next[0]; [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:227:9 [INFO] [stderr] | [INFO] [stderr] 227 | write!(s, "{}", indent); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:229:23 [INFO] [stderr] | [INFO] [stderr] 229 | true => { write!(s, "\\-"); indent.to_string() + " "}, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:230:24 [INFO] [stderr] | [INFO] [stderr] 230 | false => { write!(s, "|-"); indent.to_string() + "| "} [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 232 | write!(s, "{}\n", &gram.symbols[self.value].name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/parser.rs:234:13 [INFO] [stderr] | [INFO] [stderr] 234 | write!(s, "{}", node.to_string(&gram, &new_indent, i == self.children.len() -1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `"docker" "inspect" "1e85654aa787fde17db537ec01aaf8762c31ffc0101386ac7f7331c58ce91ffa"` [INFO] running `"docker" "rm" "-f" "1e85654aa787fde17db537ec01aaf8762c31ffc0101386ac7f7331c58ce91ffa"` [INFO] [stdout] 1e85654aa787fde17db537ec01aaf8762c31ffc0101386ac7f7331c58ce91ffa [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/JacekPrzemieniecki/earley_parser:/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" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 45f2c4c9f525685d79ae257f9d03b12c1e47059ba23b2ae7e9fea77c0e6f747b [INFO] running `"docker" "start" "-a" "45f2c4c9f525685d79ae257f9d03b12c1e47059ba23b2ae7e9fea77c0e6f747b"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/earley_parser-0c815c38fef446b8 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "45f2c4c9f525685d79ae257f9d03b12c1e47059ba23b2ae7e9fea77c0e6f747b"` [INFO] running `"docker" "rm" "-f" "45f2c4c9f525685d79ae257f9d03b12c1e47059ba23b2ae7e9fea77c0e6f747b"` [INFO] [stdout] 45f2c4c9f525685d79ae257f9d03b12c1e47059ba23b2ae7e9fea77c0e6f747b