[INFO] crate sparser 0.1.1 is already in cache
[INFO] extracting crate sparser 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/sparser/0.1.1
[INFO] extracting crate sparser 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sparser/0.1.1
[INFO] validating manifest of sparser-0.1.1 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 sparser-0.1.1 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 sparser-0.1.1
[INFO] finished frobbing sparser-0.1.1
[INFO] frobbed toml for sparser-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sparser/0.1.1/Cargo.toml
[INFO] started frobbing sparser-0.1.1
[INFO] finished frobbing sparser-0.1.1
[INFO] frobbed toml for sparser-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sparser/0.1.1/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 sparser-0.1.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sparser/0.1.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d30e0b6f911a7adfa88438ec12b772498010d49d3b20faf0fefb6724f84d8fa5
[INFO] running `"docker" "start" "-a" "d30e0b6f911a7adfa88438ec12b772498010d49d3b20faf0fefb6724f84d8fa5"`
[INFO] [stderr]    Compiling sparser v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `pest::inputs`
[INFO] [stderr]   --> src/lib.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 | use pest::inputs::{Input,StringInput};
[INFO] [stderr]    |           ^^^^^^ could not find `inputs` in `pest`
[INFO] [stderr] 
[INFO] [stderr] error[E0726]: implicit elided lifetime not allowed here
[INFO] [stderr]    --> src/lib.rs:128:42
[INFO] [stderr]     |
[INFO] [stderr] 128 | impl<R: RuleType,I: Input> PairMixin for Pair<R,I>{
[INFO] [stderr]     |                                          ^^^^^^^^^ help: indicate the anonymous lifetime: `Pair<'_, R,I>`
[INFO] [stderr] 
[INFO] [stderr] error[E0726]: implicit elided lifetime not allowed here
[INFO] [stderr]    --> src/lib.rs:142:49
[INFO] [stderr]     |
[INFO] [stderr] 142 | impl<R: RuleType, I: Input> PairsMixin<R,I> for Pairs<R,I>{
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: indicate the anonymous lifetime: `Pairs<'_, R,I>`
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]    --> src/lib.rs:139:35
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn first_pair(self) -> Option<Pair<R,I>>;
[INFO] [stderr]     |                                   ^^^^^^^^^ help: consider giving it a 'static lifetime: `Pair<R,I> + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]    --> src/lib.rs:143:39
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn first_pair(mut self) -> Option<Pair<R,I>>{
[INFO] [stderr]     |                                       ^^^^^^^^^ help: consider giving it a 'static lifetime: `Pair<R,I> + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]    --> src/lib.rs:128:49
[INFO] [stderr]     |
[INFO] [stderr] 128 | impl<R: RuleType,I: Input> PairMixin for Pair<R,I>{
[INFO] [stderr]     |                                                 ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0106, E0107, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0106`.
[INFO] [stderr] error: Could not compile `sparser`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d30e0b6f911a7adfa88438ec12b772498010d49d3b20faf0fefb6724f84d8fa5"`
[INFO] running `"docker" "rm" "-f" "d30e0b6f911a7adfa88438ec12b772498010d49d3b20faf0fefb6724f84d8fa5"`
[INFO] [stdout] d30e0b6f911a7adfa88438ec12b772498010d49d3b20faf0fefb6724f84d8fa5