[INFO] fetching crate libR-sys 0.7.1...
[INFO] testing libR-sys-0.7.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate libR-sys 0.7.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate libR-sys 0.7.1
[INFO] finished tweaking crates.io crate libR-sys 0.7.1
[INFO] tweaked toml for crates.io crate libR-sys 0.7.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libR-sys 0.7.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80700908c2882b8eeb0b83063f14d355fb9bab29b299b72f444be2ea967e7830
[INFO] running `Command { std: "docker" "start" "-a" "80700908c2882b8eeb0b83063f14d355fb9bab29b299b72f444be2ea967e7830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80700908c2882b8eeb0b83063f14d355fb9bab29b299b72f444be2ea967e7830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80700908c2882b8eeb0b83063f14d355fb9bab29b299b72f444be2ea967e7830", kill_on_drop: false }`
[INFO] [stdout] 80700908c2882b8eeb0b83063f14d355fb9bab29b299b72f444be2ea967e7830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6e46883f94f0692509e5bd411e7b7c29a001eaf67068f1d55a2bcc2833d9d4c
[INFO] running `Command { std: "docker" "start" "-a" "f6e46883f94f0692509e5bd411e7b7c29a001eaf67068f1d55a2bcc2833d9d4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libR-sys v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     InvalidEnvVar(&'static str),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 72 -     InvalidEnvVar(&'static str),
[INFO] [stdout] 72 +     InvalidEnvVar(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     RInvocationError(io::Error),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 73 -     RInvocationError(io::Error),
[INFO] [stdout] 73 +     RInvocationError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     InvalidROutput(&'static str),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 74 -     InvalidROutput(&'static str),
[INFO] [stdout] 74 +     InvalidROutput(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:534:18
[INFO] [stdout]     |
[INFO] [stdout] 534 |         unsafe { ::std::mem::transmute(self._bitfield_1.get(16usize, 16u8) as u32) }
[INFO] [stdout]     |                  ---------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: replace this with: `u32::cast_signed`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:539:28
[INFO] [stdout]     |
[INFO] [stdout] 539 |             let val: u32 = ::std::mem::transmute(val);
[INFO] [stdout]     |                            ---------------------^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:554:47
[INFO] [stdout]     |
[INFO] [stdout] 554 |             let RstartVersion: u32 = unsafe { ::std::mem::transmute(RstartVersion) };
[INFO] [stdout]     |                                               ---------------------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "f6e46883f94f0692509e5bd411e7b7c29a001eaf67068f1d55a2bcc2833d9d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e46883f94f0692509e5bd411e7b7c29a001eaf67068f1d55a2bcc2833d9d4c", kill_on_drop: false }`
[INFO] [stdout] f6e46883f94f0692509e5bd411e7b7c29a001eaf67068f1d55a2bcc2833d9d4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f57398cf5af40453f902de8e2fbd2029d6ac1088d59ed072cb801bb71eabc572
[INFO] running `Command { std: "docker" "start" "-a" "f57398cf5af40453f902de8e2fbd2029d6ac1088d59ed072cb801bb71eabc572", kill_on_drop: false }`
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     InvalidEnvVar(&'static str),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 72 -     InvalidEnvVar(&'static str),
[INFO] [stdout] 72 +     InvalidEnvVar(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     RInvocationError(io::Error),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 73 -     RInvocationError(io::Error),
[INFO] [stdout] 73 +     RInvocationError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> build.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     InvalidROutput(&'static str),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 74 -     InvalidROutput(&'static str),
[INFO] [stdout] 74 +     InvalidROutput(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libR-sys v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:534:18
[INFO] [stdout]     |
[INFO] [stdout] 534 |         unsafe { ::std::mem::transmute(self._bitfield_1.get(16usize, 16u8) as u32) }
[INFO] [stdout]     |                  ---------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: replace this with: `u32::cast_signed`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:539:28
[INFO] [stdout]     |
[INFO] [stdout] 539 |             let val: u32 = ::std::mem::transmute(val);
[INFO] [stdout]     |                            ---------------------^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:554:47
[INFO] [stdout]     |
[INFO] [stdout] 554 |             let RstartVersion: u32 = unsafe { ::std::mem::transmute(RstartVersion) };
[INFO] [stdout]     |                                               ---------------------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "f57398cf5af40453f902de8e2fbd2029d6ac1088d59ed072cb801bb71eabc572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57398cf5af40453f902de8e2fbd2029d6ac1088d59ed072cb801bb71eabc572", kill_on_drop: false }`
[INFO] [stdout] f57398cf5af40453f902de8e2fbd2029d6ac1088d59ed072cb801bb71eabc572
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7f2d3b1d19542bcbdf7b50213206bc4fd9a2357a339e97bbe2a7e3d8adb7ead
[INFO] running `Command { std: "docker" "start" "-a" "e7f2d3b1d19542bcbdf7b50213206bc4fd9a2357a339e97bbe2a7e3d8adb7ead", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> build.rs:72:19
[INFO] [stderr]    |
[INFO] [stderr] 72 |     InvalidEnvVar(&'static str),
[INFO] [stderr]    |     ------------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 72 -     InvalidEnvVar(&'static str),
[INFO] [stderr] 72 +     InvalidEnvVar(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> build.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |     RInvocationError(io::Error),
[INFO] [stderr]    |     ---------------- ^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 73 -     RInvocationError(io::Error),
[INFO] [stderr] 73 +     RInvocationError(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> build.rs:74:20
[INFO] [stderr]    |
[INFO] [stderr] 74 |     InvalidROutput(&'static str),
[INFO] [stderr]    |     -------------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `EnvVarError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 74 -     InvalidROutput(&'static str),
[INFO] [stderr] 74 +     InvalidROutput(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `libR-sys` (build script) generated 3 warnings
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:534:18
[INFO] [stderr]     |
[INFO] [stderr] 534 |         unsafe { ::std::mem::transmute(self._bitfield_1.get(16usize, 16u8) as u32) }
[INFO] [stderr]     |                  ---------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: replace this with: `u32::cast_signed`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:539:28
[INFO] [stderr]     |
[INFO] [stderr] 539 |             let val: u32 = ::std::mem::transmute(val);
[INFO] [stderr]     |                            ---------------------^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: replace this with: `i32::cast_unsigned`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/libR-sys-fe831d7b6f6eb50c/out/bindings.rs:554:47
[INFO] [stderr]     |
[INFO] [stderr] 554 |             let RstartVersion: u32 = unsafe { ::std::mem::transmute(RstartVersion) };
[INFO] [stderr]     |                                               ---------------------^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                               |
[INFO] [stderr]     |                                               help: replace this with: `i32::cast_unsigned`
[INFO] [stderr] 
[INFO] [stderr] warning: `libR-sys` (lib test) generated 3 warnings (run `cargo fix --lib -p libR-sys --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libR_sys-2251df1dd919c9f8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] [1] 1
[INFO] [stdout] Object of class "factor"
[INFO] [stdout] factor()
[INFO] [stdout] Levels: 
[INFO] [stdout] test tests::test_eval ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e7f2d3b1d19542bcbdf7b50213206bc4fd9a2357a339e97bbe2a7e3d8adb7ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f2d3b1d19542bcbdf7b50213206bc4fd9a2357a339e97bbe2a7e3d8adb7ead", kill_on_drop: false }`
[INFO] [stdout] e7f2d3b1d19542bcbdf7b50213206bc4fd9a2357a339e97bbe2a7e3d8adb7ead
