[INFO] cloning repository https://github.com/rosacris/rust-doublepivot-quicksort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rosacris/rust-doublepivot-quicksort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosacris%2Frust-doublepivot-quicksort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosacris%2Frust-doublepivot-quicksort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 266b3cf6f7ae3b4e4c572fd95787d110ec3c6cf9
[INFO] testing rosacris/rust-doublepivot-quicksort against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosacris%2Frust-doublepivot-quicksort" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rosacris/rust-doublepivot-quicksort on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rosacris/rust-doublepivot-quicksort
[INFO] finished tweaking git repo https://github.com/rosacris/rust-doublepivot-quicksort
[INFO] tweaked toml for git repo https://github.com/rosacris/rust-doublepivot-quicksort written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rosacris/rust-doublepivot-quicksort already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a15387ea291ff9d33e71bb9844b79b30c56ec7db087b7d5636670e87ce1bbe84
[INFO] running `Command { std: "docker" "start" "-a" "a15387ea291ff9d33e71bb9844b79b30c56ec7db087b7d5636670e87ce1bbe84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a15387ea291ff9d33e71bb9844b79b30c56ec7db087b7d5636670e87ce1bbe84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15387ea291ff9d33e71bb9844b79b30c56ec7db087b7d5636670e87ce1bbe84", kill_on_drop: false }`
[INFO] [stdout] a15387ea291ff9d33e71bb9844b79b30c56ec7db087b7d5636670e87ce1bbe84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ef2eac54e5121475c2c27202ee138833a09eac6311ddae281dc545f7dcaecb5
[INFO] running `Command { std: "docker" "start" "-a" "1ef2eac54e5121475c2c27202ee138833a09eac6311ddae281dc545f7dcaecb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling doublepivot-quicksort v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "1ef2eac54e5121475c2c27202ee138833a09eac6311ddae281dc545f7dcaecb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef2eac54e5121475c2c27202ee138833a09eac6311ddae281dc545f7dcaecb5", kill_on_drop: false }`
[INFO] [stdout] 1ef2eac54e5121475c2c27202ee138833a09eac6311ddae281dc545f7dcaecb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d8591cd049ded20ae4021a56d05f6408db9744420e64101353a8fee65e36640
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3d8591cd049ded20ae4021a56d05f6408db9744420e64101353a8fee65e36640", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling doublepivot-quicksort v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `vq` in this scope
[INFO] [stdout]    --> src/lib.rs:138:6
[INFO] [stdout]     |
[INFO] [stdout] 138 |         vq.sort();
[INFO] [stdout]     |         ^^ help: a local variable with a similar name exists: `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `doublepivot-quicksort`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3d8591cd049ded20ae4021a56d05f6408db9744420e64101353a8fee65e36640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d8591cd049ded20ae4021a56d05f6408db9744420e64101353a8fee65e36640", kill_on_drop: false }`
[INFO] [stdout] 3d8591cd049ded20ae4021a56d05f6408db9744420e64101353a8fee65e36640