[INFO] fetching crate ordslice 0.3.0...
[INFO] checking ordslice-0.3.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate ordslice 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ordslice 0.3.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ordslice 0.3.0
[INFO] finished tweaking crates.io crate ordslice 0.3.0
[INFO] tweaked toml for crates.io crate ordslice 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6df6083296c820abfd90659899714ae951eed2be4a147458846fd18e85d64666
[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" "6df6083296c820abfd90659899714ae951eed2be4a147458846fd18e85d64666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6df6083296c820abfd90659899714ae951eed2be4a147458846fd18e85d64666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df6083296c820abfd90659899714ae951eed2be4a147458846fd18e85d64666", kill_on_drop: false }`
[INFO] [stdout] 6df6083296c820abfd90659899714ae951eed2be4a147458846fd18e85d64666
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61c761aa65c49d1985297a0354a0526955a5473c3f399b44e4856e4cc52a89fa
[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" "61c761aa65c49d1985297a0354a0526955a5473c3f399b44e4856e4cc52a89fa", kill_on_drop: false }`
[INFO] [stderr]     Checking ordslice v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         (base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize)
[INFO] [stdout]     |         ^                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 325 -         (base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize)
[INFO] [stdout] 325 +         base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         (base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize)
[INFO] [stdout]     |         ^                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 325 -         (base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize)
[INFO] [stdout] 325 +         base.0 + (cmp.0 == Less) as usize..base.1 + (cmp.1 != Greater) as usize
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "61c761aa65c49d1985297a0354a0526955a5473c3f399b44e4856e4cc52a89fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c761aa65c49d1985297a0354a0526955a5473c3f399b44e4856e4cc52a89fa", kill_on_drop: false }`
[INFO] [stdout] 61c761aa65c49d1985297a0354a0526955a5473c3f399b44e4856e4cc52a89fa