[INFO] cloning repository https://github.com/Nilsen84/io_uring_mc_scanner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nilsen84/io_uring_mc_scanner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsen84%2Fio_uring_mc_scanner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsen84%2Fio_uring_mc_scanner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9857cc2cc1bf366c718f0b93f4563faf1a398816
[INFO] checking Nilsen84/io_uring_mc_scanner/9857cc2cc1bf366c718f0b93f4563faf1a398816 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsen84%2Fio_uring_mc_scanner" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nilsen84/io_uring_mc_scanner on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nilsen84/io_uring_mc_scanner
[INFO] finished tweaking git repo https://github.com/Nilsen84/io_uring_mc_scanner
[INFO] tweaked toml for git repo https://github.com/Nilsen84/io_uring_mc_scanner written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Nilsen84/io_uring_mc_scanner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded io-uring v0.6.2
[INFO] [stderr]   Downloaded craftping v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 988379def1b1e7ae9a73856699e8a079e48a458ad277db963c8bc9b3a8648469
[INFO] running `Command { std: "docker" "start" "-a" "988379def1b1e7ae9a73856699e8a079e48a458ad277db963c8bc9b3a8648469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "988379def1b1e7ae9a73856699e8a079e48a458ad277db963c8bc9b3a8648469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988379def1b1e7ae9a73856699e8a079e48a458ad277db963c8bc9b3a8648469", kill_on_drop: false }`
[INFO] [stdout] 988379def1b1e7ae9a73856699e8a079e48a458ad277db963c8bc9b3a8648469
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30c5ed330d730dcab20704b44815ee6e04c99a909a75363d64cafc78eb78522a
[INFO] running `Command { std: "docker" "start" "-a" "30c5ed330d730dcab20704b44815ee6e04c99a909a75363d64cafc78eb78522a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling io-uring v0.6.2
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking craftping v0.4.1
[INFO] [stderr]     Checking io_uring_mc_scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `is_empty` and `size` are never used
[INFO] [stdout]   --> src/entry_alloc.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T> EntryAllocator<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_empty` and `size` are never used
[INFO] [stdout]   --> src/entry_alloc.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T> EntryAllocator<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn size(&self) -> usize {
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.15s
[INFO] running `Command { std: "docker" "inspect" "30c5ed330d730dcab20704b44815ee6e04c99a909a75363d64cafc78eb78522a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c5ed330d730dcab20704b44815ee6e04c99a909a75363d64cafc78eb78522a", kill_on_drop: false }`
[INFO] [stdout] 30c5ed330d730dcab20704b44815ee6e04c99a909a75363d64cafc78eb78522a