[INFO] updating cached repository https://github.com/daemontus/bn-scc-experiments
[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] [stderr] From https://github.com/daemontus/bn-scc-experiments
[INFO] [stderr]    84446ab..602f848  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 602f848f1f573b6cdde5567c0baf23b471946aec
[INFO] checking daemontus/bn-scc-experiments against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaemontus%2Fbn-scc-experiments" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daemontus/bn-scc-experiments on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/daemontus/bn-scc-experiments
[INFO] finished tweaking git repo https://github.com/daemontus/bn-scc-experiments
[INFO] tweaked toml for git repo https://github.com/daemontus/bn-scc-experiments written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/daemontus/bn-scc-experiments already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2b6931343e20181e1045d343833d81955a4945743178a35f73c2c7045ef88fdb
[INFO] running `"docker" "start" "-a" "2b6931343e20181e1045d343833d81955a4945743178a35f73c2c7045ef88fdb"`
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking biodivine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `num_vars`
[INFO] [stderr]    --> src/bdd/mod.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn num_vars(&self) -> u32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `"docker" "inspect" "2b6931343e20181e1045d343833d81955a4945743178a35f73c2c7045ef88fdb"`
[INFO] running `"docker" "rm" "-f" "2b6931343e20181e1045d343833d81955a4945743178a35f73c2c7045ef88fdb"`
[INFO] [stdout] 2b6931343e20181e1045d343833d81955a4945743178a35f73c2c7045ef88fdb