[INFO] cloning repository https://github.com/mikaylathompson/rust-bloom-filter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikaylathompson/rust-bloom-filter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaylathompson%2Frust-bloom-filter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaylathompson%2Frust-bloom-filter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8de00eff4227a3988ec52e51e3a031716523da7
[INFO] checking mikaylathompson/rust-bloom-filter against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaylathompson%2Frust-bloom-filter" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikaylathompson/rust-bloom-filter on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikaylathompson/rust-bloom-filter
[INFO] finished tweaking git repo https://github.com/mikaylathompson/rust-bloom-filter
[INFO] tweaked toml for git repo https://github.com/mikaylathompson/rust-bloom-filter written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mikaylathompson/rust-bloom-filter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c5f9e55bb9d62426baa7587cb3fe77054ebb008b907ed3410437d7c26e14d6a9
[INFO] running `Command { std: "docker" "start" "-a" "c5f9e55bb9d62426baa7587cb3fe77054ebb008b907ed3410437d7c26e14d6a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5f9e55bb9d62426baa7587cb3fe77054ebb008b907ed3410437d7c26e14d6a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f9e55bb9d62426baa7587cb3fe77054ebb008b907ed3410437d7c26e14d6a9", kill_on_drop: false }`
[INFO] [stdout] c5f9e55bb9d62426baa7587cb3fe77054ebb008b907ed3410437d7c26e14d6a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] ed4d4e23c49d02df2d04f5e03dd95cdbcabe44a48acd6aca97a51de8dc22bf72
[INFO] running `Command { std: "docker" "start" "-a" "ed4d4e23c49d02df2d04f5e03dd95cdbcabe44a48acd6aca97a51de8dc22bf72", kill_on_drop: false }`
[INFO] [stderr]     Checking bloom-filter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let x = BloomFilter::new();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `twowords`
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let twowords = oneword.add("world".to_string());
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_twowords`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "ed4d4e23c49d02df2d04f5e03dd95cdbcabe44a48acd6aca97a51de8dc22bf72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4d4e23c49d02df2d04f5e03dd95cdbcabe44a48acd6aca97a51de8dc22bf72", kill_on_drop: false }`
[INFO] [stdout] ed4d4e23c49d02df2d04f5e03dd95cdbcabe44a48acd6aca97a51de8dc22bf72