[INFO] updating cached repository jfschaefer/rust-senna
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jfschaefer/rust-senna
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jfschaefer/rust-senna" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jfschaefer/rust-senna"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jfschaefer/rust-senna'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jfschaefer/rust-senna" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jfschaefer/rust-senna"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jfschaefer/rust-senna'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ff14b50b3cfae48cfa278b477c63245285ef0f6c
[INFO] sha for GitHub repo jfschaefer/rust-senna: ff14b50b3cfae48cfa278b477c63245285ef0f6c
[INFO] validating manifest of jfschaefer/rust-senna 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 jfschaefer/rust-senna 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 jfschaefer/rust-senna
[INFO] finished frobbing jfschaefer/rust-senna
[INFO] frobbed toml for jfschaefer/rust-senna written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jfschaefer/rust-senna/Cargo.toml
[INFO] started frobbing jfschaefer/rust-senna
[INFO] finished frobbing jfschaefer/rust-senna
[INFO] frobbed toml for jfschaefer/rust-senna written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jfschaefer/rust-senna/Cargo.toml
[INFO] crate jfschaefer/rust-senna already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jfschaefer/rust-senna/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 jfschaefer/rust-senna against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jfschaefer/rust-senna:/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] f3217016b5c9ad257915c41c6c33fc37e8a67ec2342833597bf6bfc5824cf776
[INFO] running `"docker" "start" "-a" "f3217016b5c9ad257915c41c6c33fc37e8a67ec2342833597bf6bfc5824cf776"`
[INFO] [stderr]    Compiling rust-senna v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sentence`
[INFO] [stderr]   --> tests/lib.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let sentence = senna.parse("Let mathformula be a finitely generated group of subexponential growth (e.g., mathformula); let mathformula be a finite set of generators for mathformula (e.g., the von Neumann or Moore neighborhood) and let mathformula be the set of reduced words on mathformula having at most length mathformula; let mathformula, and let mathformula be the quotient of mathformula with respect to the equivalence relation mathformula endowed with the topology induced by the distance mathformula Let mathformula be a cellular automaton over mathformula having set of states mathformula.  1.  mathformula induces in a natural way a Lipschitz continuous mathformula.  2.  mathformula is surjective if and only if mathformula is surjective.  3.  mathformula is injective if and only if it is invertible.", SennaParseOptions { pos: true, psg: true, });
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_sentence`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `"docker" "inspect" "f3217016b5c9ad257915c41c6c33fc37e8a67ec2342833597bf6bfc5824cf776"`
[INFO] running `"docker" "rm" "-f" "f3217016b5c9ad257915c41c6c33fc37e8a67ec2342833597bf6bfc5824cf776"`
[INFO] [stdout] f3217016b5c9ad257915c41c6c33fc37e8a67ec2342833597bf6bfc5824cf776