[INFO] crate slr_parser 0.0.18 is already in cache
[INFO] extracting crate slr_parser 0.0.18 into work/ex/beta-1.38-1/sources/1.37.0/reg/slr_parser/0.0.18
[INFO] extracting crate slr_parser 0.0.18 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/slr_parser/0.0.18
[INFO] validating manifest of slr_parser-0.0.18 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 slr_parser-0.0.18 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 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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/reg/slr_parser/0.0.18/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 slr_parser-0.0.18 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 21d50d1adadd085bb4d1412cd96c7ce06bf6e87a131b2d55c000b34238a721dc
[INFO] running `"docker" "start" "-a" "21d50d1adadd085bb4d1412cd96c7ce06bf6e87a131b2d55c000b34238a721dc"`
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 11.54s
[INFO] running `"docker" "inspect" "21d50d1adadd085bb4d1412cd96c7ce06bf6e87a131b2d55c000b34238a721dc"`
[INFO] running `"docker" "rm" "-f" "21d50d1adadd085bb4d1412cd96c7ce06bf6e87a131b2d55c000b34238a721dc"`
[INFO] [stdout] 21d50d1adadd085bb4d1412cd96c7ce06bf6e87a131b2d55c000b34238a721dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 90ce6db59d8d44159e12d9f8de22fed862360e8c17958a8c31e22d02bcad7926
[INFO] running `"docker" "start" "-a" "90ce6db59d8d44159e12d9f8de22fed862360e8c17958a8c31e22d02bcad7926"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "90ce6db59d8d44159e12d9f8de22fed862360e8c17958a8c31e22d02bcad7926"`
[INFO] running `"docker" "rm" "-f" "90ce6db59d8d44159e12d9f8de22fed862360e8c17958a8c31e22d02bcad7926"`
[INFO] [stdout] 90ce6db59d8d44159e12d9f8de22fed862360e8c17958a8c31e22d02bcad7926
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 97b3ab50da63862e8277248aef2bc80249ee9300b1cd790f4acf8544005aa8d6
[INFO] running `"docker" "start" "-a" "97b3ab50da63862e8277248aef2bc80249ee9300b1cd790f4acf8544005aa8d6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slr_parser-b5a9931e62738707
[INFO] [stderr]    Doc-tests slr_parser
[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] [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" "97b3ab50da63862e8277248aef2bc80249ee9300b1cd790f4acf8544005aa8d6"`
[INFO] running `"docker" "rm" "-f" "97b3ab50da63862e8277248aef2bc80249ee9300b1cd790f4acf8544005aa8d6"`
[INFO] [stdout] 97b3ab50da63862e8277248aef2bc80249ee9300b1cd790f4acf8544005aa8d6