[INFO] updating cached repository https://github.com/alexlai97/sorting_algorithm_demos [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3bdfa390213822847cbb774117f87727f431825e [INFO] checking alexlai97/sorting_algorithm_demos against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexlai97%2Fsorting_algorithm_demos" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alexlai97/sorting_algorithm_demos on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/alexlai97/sorting_algorithm_demos [INFO] finished tweaking git repo https://github.com/alexlai97/sorting_algorithm_demos [INFO] tweaked toml for git repo https://github.com/alexlai97/sorting_algorithm_demos written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/alexlai97/sorting_algorithm_demos already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 22cf01fdc244fcb740a224152d8ca0c88fad4fee5073bbeeef28485f0d55da34 [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" "22cf01fdc244fcb740a224152d8ca0c88fad4fee5073bbeeef28485f0d55da34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22cf01fdc244fcb740a224152d8ca0c88fad4fee5073bbeeef28485f0d55da34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22cf01fdc244fcb740a224152d8ca0c88fad4fee5073bbeeef28485f0d55da34", kill_on_drop: false }` [INFO] [stdout] 22cf01fdc244fcb740a224152d8ca0c88fad4fee5073bbeeef28485f0d55da34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--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] f81dced741b2ea3eb3c7eb3774b883e0636ddc112f095a5148d67f940ca247ad [INFO] running `Command { std: "docker" "start" "-a" "f81dced741b2ea3eb3c7eb3774b883e0636ddc112f095a5148d67f940ca247ad", kill_on_drop: false }` [INFO] [stderr] Checking sorting_algs_demos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self::Node::*` [INFO] [stdout] --> src/binarytreesort.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use self::Node::*; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::Node::*` [INFO] [stdout] --> src/binarytreesort.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use self::Node::*; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/binarytreesort.rs:3:23 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn binarytreesort(mut array: Vec) -> Vec { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Node` [INFO] [stdout] --> src/binarytreesort.rs:23:6 [INFO] [stdout] | [INFO] [stdout] 23 | enum Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/binarytreesort.rs:3:23 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn binarytreesort(mut array: Vec) -> Vec { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Node` [INFO] [stdout] --> src/binarytreesort.rs:23:6 [INFO] [stdout] | [INFO] [stdout] 23 | enum Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `Command { std: "docker" "inspect" "f81dced741b2ea3eb3c7eb3774b883e0636ddc112f095a5148d67f940ca247ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f81dced741b2ea3eb3c7eb3774b883e0636ddc112f095a5148d67f940ca247ad", kill_on_drop: false }` [INFO] [stdout] f81dced741b2ea3eb3c7eb3774b883e0636ddc112f095a5148d67f940ca247ad