[INFO] updating cached repository https://github.com/jfschaefer/rust-senna
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ff14b50b3cfae48cfa278b477c63245285ef0f6c
[INFO] checking jfschaefer/rust-senna against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfschaefer%2Frust-senna" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jfschaefer/rust-senna on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jfschaefer/rust-senna
[INFO] finished tweaking git repo https://github.com/jfschaefer/rust-senna
[INFO] tweaked toml for git repo https://github.com/jfschaefer/rust-senna written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jfschaefer/rust-senna already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-6/source/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[INFO] the lockfile is outdated, regenerating it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/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 011a285844d707f404f63c3eb6a52d182a75508e071303f7fd9c377e2e209051
[INFO] running `"docker" "start" "-a" "011a285844d707f404f63c3eb6a52d182a75508e071303f7fd9c377e2e209051"`
[INFO] [stderr]    Compiling rust-senna v0.0.1 (/opt/rustwide/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 6.24s
[INFO] running `"docker" "inspect" "011a285844d707f404f63c3eb6a52d182a75508e071303f7fd9c377e2e209051"`
[INFO] running `"docker" "rm" "-f" "011a285844d707f404f63c3eb6a52d182a75508e071303f7fd9c377e2e209051"`
[INFO] [stdout] 011a285844d707f404f63c3eb6a52d182a75508e071303f7fd9c377e2e209051