[INFO] fetching crate libR-sys 0.2.1...
[INFO] checking libR-sys-0.2.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate libR-sys 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libR-sys 0.2.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libR-sys 0.2.1
[INFO] finished tweaking crates.io crate libR-sys 0.2.1
[INFO] tweaked toml for crates.io crate libR-sys 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 590d38b1f2348df84c981424ff1d8ad21799a7937a1038f2517bfd5db8a7f0be
[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" "590d38b1f2348df84c981424ff1d8ad21799a7937a1038f2517bfd5db8a7f0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "590d38b1f2348df84c981424ff1d8ad21799a7937a1038f2517bfd5db8a7f0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590d38b1f2348df84c981424ff1d8ad21799a7937a1038f2517bfd5db8a7f0be", kill_on_drop: false }`
[INFO] [stdout] 590d38b1f2348df84c981424ff1d8ad21799a7937a1038f2517bfd5db8a7f0be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72986ff4ce5647739cbbc84b0f7f00dd831029745601d6122f62feae6ce01d73
[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" "72986ff4ce5647739cbbc84b0f7f00dd831029745601d6122f62feae6ce01d73", kill_on_drop: false }`
[INFO] [stderr]    Compiling libR-sys v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> build.rs:351:17
[INFO] [stdout]     |
[INFO] [stdout] 351 | /                 format!(
[INFO] [stdout] 352 | |                     "Cannot find libR-sys bindings file for R {}.{}.{}{} on {} in {}. Consider compiling with --features use-bindgen.",
[INFO] [stdout] 353 | |                     version_info.major, version_info.minor, version_info.patch, version_info.devel, target_os, bindings_path.display()
[INFO] [stdout] 354 | |                 )
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 
[INFO] [stdout] 352 |                     "Cannot find libR-sys bindings file for R {}.{}.{}{} on {} in {}. Consider compiling with --features use-bindgen.",
[INFO] [stdout] 353 |                     version_info.major, version_info.minor, version_info.patch, version_info.devel, target_os, bindings_path.display()
[INFO] [stdout] 354 |                 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "72986ff4ce5647739cbbc84b0f7f00dd831029745601d6122f62feae6ce01d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72986ff4ce5647739cbbc84b0f7f00dd831029745601d6122f62feae6ce01d73", kill_on_drop: false }`
[INFO] [stdout] 72986ff4ce5647739cbbc84b0f7f00dd831029745601d6122f62feae6ce01d73