[INFO] fetching crate bit-set 0.5.2...
[INFO] checking bit-set-0.5.2 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate bit-set 0.5.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bit-set 0.5.2 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bit-set 0.5.2
[INFO] finished tweaking crates.io crate bit-set 0.5.2
[INFO] tweaked toml for crates.io crate bit-set 0.5.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 512d9353789112f118e0345fee6043d72aade3b78b6bfc01fe9e22c09a1e1cc0
[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" "512d9353789112f118e0345fee6043d72aade3b78b6bfc01fe9e22c09a1e1cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "512d9353789112f118e0345fee6043d72aade3b78b6bfc01fe9e22c09a1e1cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512d9353789112f118e0345fee6043d72aade3b78b6bfc01fe9e22c09a1e1cc0", kill_on_drop: false }`
[INFO] [stdout] 512d9353789112f118e0345fee6043d72aade3b78b6bfc01fe9e22c09a1e1cc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c88f9579e43f41c0672030f5b1e418b4064ae5e54c410dde93449250cac91dee
[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" "c88f9579e43f41c0672030f5b1e418b4064ae5e54c410dde93449250cac91dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking bit-set v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:996:44
[INFO] [stdout]     |
[INFO] [stdout] 996 |                 assert_eq!(bitset.contains((l-1)), b);
[INFO] [stdout]     |                                            ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "c88f9579e43f41c0672030f5b1e418b4064ae5e54c410dde93449250cac91dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c88f9579e43f41c0672030f5b1e418b4064ae5e54c410dde93449250cac91dee", kill_on_drop: false }`
[INFO] [stdout] c88f9579e43f41c0672030f5b1e418b4064ae5e54c410dde93449250cac91dee