[INFO] cloning repository https://github.com/pfesenmeier/rust_bits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pfesenmeier/rust_bits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfesenmeier%2Frust_bits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfesenmeier%2Frust_bits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17cf2c4a139fd6e1661235195e5877c60d4cb32c
[INFO] checking pfesenmeier/rust_bits against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfesenmeier%2Frust_bits" "/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/pfesenmeier/rust_bits on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pfesenmeier/rust_bits
[INFO] finished tweaking git repo https://github.com/pfesenmeier/rust_bits
[INFO] tweaked toml for git repo https://github.com/pfesenmeier/rust_bits written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/pfesenmeier/rust_bits already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aecd0c828b57a78745fb368e366cdfb192c33c7df1be9329811fe5768fd38d5
[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" "7aecd0c828b57a78745fb368e366cdfb192c33c7df1be9329811fe5768fd38d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aecd0c828b57a78745fb368e366cdfb192c33c7df1be9329811fe5768fd38d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aecd0c828b57a78745fb368e366cdfb192c33c7df1be9329811fe5768fd38d5", kill_on_drop: false }`
[INFO] [stdout] 7aecd0c828b57a78745fb368e366cdfb192c33c7df1be9329811fe5768fd38d5
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce20e4b3ce108d2dad7d6a1cefc14c61fc6a3c7b2d8c727f06981d51df6de016
[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" "ce20e4b3ce108d2dad7d6a1cefc14c61fc6a3c7b2d8c727f06981d51df6de016", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_bits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `swap`
[INFO] [stdout]  --> src/swap.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn swap(x: i32, y: i32) -> (i32, i32) {
[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 0.48s
[INFO] running `Command { std: "docker" "inspect" "ce20e4b3ce108d2dad7d6a1cefc14c61fc6a3c7b2d8c727f06981d51df6de016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce20e4b3ce108d2dad7d6a1cefc14c61fc6a3c7b2d8c727f06981d51df6de016", kill_on_drop: false }`
[INFO] [stdout] ce20e4b3ce108d2dad7d6a1cefc14c61fc6a3c7b2d8c727f06981d51df6de016