[INFO] cloning repository https://github.com/paberr/rust-mnemonic-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paberr/rust-mnemonic-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaberr%2Frust-mnemonic-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaberr%2Frust-mnemonic-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a92778b0791e889c2bb952d13771d68502ee0381
[INFO] checking paberr/rust-mnemonic-benchmark against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaberr%2Frust-mnemonic-benchmark" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paberr/rust-mnemonic-benchmark on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paberr/rust-mnemonic-benchmark
[INFO] finished tweaking git repo https://github.com/paberr/rust-mnemonic-benchmark
[INFO] tweaked toml for git repo https://github.com/paberr/rust-mnemonic-benchmark written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/paberr/rust-mnemonic-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94c229504c5a609c5fa7086a410d0a32dd9dfa32a313e4479db348df2540237d
[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" "94c229504c5a609c5fa7086a410d0a32dd9dfa32a313e4479db348df2540237d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94c229504c5a609c5fa7086a410d0a32dd9dfa32a313e4479db348df2540237d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c229504c5a609c5fa7086a410d0a32dd9dfa32a313e4479db348df2540237d", kill_on_drop: false }`
[INFO] [stdout] 94c229504c5a609c5fa7086a410d0a32dd9dfa32a313e4479db348df2540237d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d19e1440d7db571a39344edf6e3400020f676e5a2640d0e759097c6470783d4
[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" "3d19e1440d7db571a39344edf6e3400020f676e5a2640d0e759097c6470783d4", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking rust-mnemonic-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `ones`
[INFO] [stdout]   --> src/main.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn ones() -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 2.49s
[INFO] running `Command { std: "docker" "inspect" "3d19e1440d7db571a39344edf6e3400020f676e5a2640d0e759097c6470783d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d19e1440d7db571a39344edf6e3400020f676e5a2640d0e759097c6470783d4", kill_on_drop: false }`
[INFO] [stdout] 3d19e1440d7db571a39344edf6e3400020f676e5a2640d0e759097c6470783d4