[INFO] crate slr_parser 0.0.18 is already in cache
[INFO] extracting crate slr_parser 0.0.18 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/slr_parser/0.0.18
[INFO] extracting crate slr_parser 0.0.18 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/slr_parser/0.0.18
[INFO] validating manifest of slr_parser-0.0.18 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of slr_parser-0.0.18 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing slr_parser-0.0.18
[INFO] removed 0 missing examples
[INFO] finished frobbing slr_parser-0.0.18
[INFO] frobbed toml for slr_parser-0.0.18 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/slr_parser/0.0.18/Cargo.toml
[INFO] started frobbing slr_parser-0.0.18
[INFO] removed 0 missing examples
[INFO] finished frobbing slr_parser-0.0.18
[INFO] frobbed toml for slr_parser-0.0.18 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/slr_parser/0.0.18/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking slr_parser-0.0.18 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/slr_parser/0.0.18:/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=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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 15d2f92cf3a03702ca114081257c6c35a65fbb6b84488d8a837b136430a42d47
[INFO] running `"docker" "start" "-a" "15d2f92cf3a03702ca114081257c6c35a65fbb6b84488d8a837b136430a42d47"`
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking slr_parser v0.0.18 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/parser.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |               None => return $err
[INFO] [stderr]     |                       ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 370 |               let token = try_eof!(self.lexer.cur_token, match last_span
[INFO] [stderr]     |  _________________________-
[INFO] [stderr] 371 | |             {
[INFO] [stderr] 372 | |                 Some(span) =>
[INFO] [stderr] 373 | |                 {
[INFO] [stderr] ...   |
[INFO] [stderr] 376 | |                 None => return Ok(false),
[INFO] [stderr] 377 | |             });
[INFO] [stderr]     | |______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/parser.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |               None => return $err
[INFO] [stderr]     |                       ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 370 |               let token = try_eof!(self.lexer.cur_token, match last_span
[INFO] [stderr]     |  _________________________-
[INFO] [stderr] 371 | |             {
[INFO] [stderr] 372 | |                 Some(span) =>
[INFO] [stderr] 373 | |                 {
[INFO] [stderr] ...   |
[INFO] [stderr] 376 | |                 None => return Ok(false),
[INFO] [stderr] 377 | |             });
[INFO] [stderr]     | |______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.31s
[INFO] running `"docker" "inspect" "15d2f92cf3a03702ca114081257c6c35a65fbb6b84488d8a837b136430a42d47"`
[INFO] running `"docker" "rm" "-f" "15d2f92cf3a03702ca114081257c6c35a65fbb6b84488d8a837b136430a42d47"`
[INFO] [stdout] 15d2f92cf3a03702ca114081257c6c35a65fbb6b84488d8a837b136430a42d47