[INFO] cloning repository https://github.com/awygle/waggle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awygle/waggle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawygle%2Fwaggle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawygle%2Fwaggle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8a9f2693e0330f34df3f56929ee63c7a8a8525b7 [INFO] testing awygle/waggle against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawygle%2Fwaggle" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/awygle/waggle on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/awygle/waggle [INFO] finished tweaking git repo https://github.com/awygle/waggle [INFO] tweaked toml for git repo https://github.com/awygle/waggle written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/awygle/waggle already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 704625a85b715707aea01cb79adb0c658b9ae80c6b3f48cc7cad57e32e2f1f18 [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" "704625a85b715707aea01cb79adb0c658b9ae80c6b3f48cc7cad57e32e2f1f18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "704625a85b715707aea01cb79adb0c658b9ae80c6b3f48cc7cad57e32e2f1f18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "704625a85b715707aea01cb79adb0c658b9ae80c6b3f48cc7cad57e32e2f1f18", kill_on_drop: false }` [INFO] [stdout] 704625a85b715707aea01cb79adb0c658b9ae80c6b3f48cc7cad57e32e2f1f18 [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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9235263643ef435ee9d5e7bc8e3a24ddc533559eca93332ea4e9fb0b88782a0a [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" "9235263643ef435ee9d5e7bc8e3a24ddc533559eca93332ea4e9fb0b88782a0a", kill_on_drop: false }` [INFO] [stderr] Compiling instant v0.1.6 [INFO] [stderr] Compiling gles30 v0.3.1 [INFO] [stderr] Compiling takeable-option v0.5.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling parking_lot_core v0.7.2 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling raw-window-handle v0.3.3 [INFO] [stderr] Compiling shared_library v0.1.9 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Compiling stb_truetype v0.3.1 [INFO] [stderr] Compiling wayland-sys v0.23.6 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling parking_lot v0.10.2 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling glutin_glx_sys v0.1.6 [INFO] [stderr] Compiling glutin_egl_sys v0.1.4 [INFO] [stderr] Compiling wayland-client v0.23.6 [INFO] [stderr] Compiling wayland-protocols v0.23.6 [INFO] [stderr] Compiling ordered-float v1.1.0 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling line_drawing v0.7.0 [INFO] [stderr] Compiling rusttype v0.8.3 [INFO] [stderr] Compiling wayland-commons v0.23.6 [INFO] [stderr] Compiling calloop v0.4.4 [INFO] [stderr] Compiling rusttype v0.7.9 [INFO] [stderr] Compiling andrew v0.2.1 [INFO] [stderr] Compiling smithay-client-toolkit v0.6.6 [INFO] [stderr] Compiling winit v0.22.2 [INFO] [stderr] Compiling glutin v0.24.1 [INFO] [stderr] Compiling waggle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `degree` [INFO] [stdout] --> src/main.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | degree += 1.0f32; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = help: did you mean to capture by reference instead? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `TRI_COLS` [INFO] [stdout] --> src/main.rs:82:1 [INFO] [stdout] | [INFO] [stdout] 82 | const TRI_COLS: [gles30::GLfloat; 12] = [0.0f32, 1.0f32, 0.0f32, 0.0f32, 0.0f32, 1.0f32, 0.0f32, 0.0f32, 1.0f32, 1.0f32, 0.0f32, 0.0f32]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:143:112 [INFO] [stdout] | [INFO] [stdout] 143 | let pos_handle: gles30::GLuint = gl.GetAttribLocation(program, CString::new("VertexPosition").unwrap().as_ptr()) as gles30::GLuint; [INFO] [stdout] | --------------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:147:87 [INFO] [stdout] | [INFO] [stdout] 147 | let dims = gl.GetUniformLocation(program, CString::new("Dimensions").unwrap().as_ptr()); [INFO] [stdout] | ----------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:162:96 [INFO] [stdout] | [INFO] [stdout] 162 | let block_handle = gl.GetUniformBlockIndex(program, CString::new("bitstring").unwrap().as_ptr()); [INFO] [stdout] | ---------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 58.61s [INFO] running `Command { std: "docker" "inspect" "9235263643ef435ee9d5e7bc8e3a24ddc533559eca93332ea4e9fb0b88782a0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9235263643ef435ee9d5e7bc8e3a24ddc533559eca93332ea4e9fb0b88782a0a", kill_on_drop: false }` [INFO] [stdout] 9235263643ef435ee9d5e7bc8e3a24ddc533559eca93332ea4e9fb0b88782a0a [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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e93e9889a7a0431b42fe573d56b3c634551e9c31be4d572edc102964d7bbba9d [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" "e93e9889a7a0431b42fe573d56b3c634551e9c31be4d572edc102964d7bbba9d", kill_on_drop: false }` [INFO] [stderr] Compiling waggle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `degree` [INFO] [stdout] --> src/main.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | degree += 1.0f32; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = help: did you mean to capture by reference instead? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `TRI_COLS` [INFO] [stdout] --> src/main.rs:82:1 [INFO] [stdout] | [INFO] [stdout] 82 | const TRI_COLS: [gles30::GLfloat; 12] = [0.0f32, 1.0f32, 0.0f32, 0.0f32, 0.0f32, 1.0f32, 0.0f32, 0.0f32, 1.0f32, 1.0f32, 0.0f32, 0.0f32]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:143:112 [INFO] [stdout] | [INFO] [stdout] 143 | let pos_handle: gles30::GLuint = gl.GetAttribLocation(program, CString::new("VertexPosition").unwrap().as_ptr()) as gles30::GLuint; [INFO] [stdout] | --------------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:147:87 [INFO] [stdout] | [INFO] [stdout] 147 | let dims = gl.GetUniformLocation(program, CString::new("Dimensions").unwrap().as_ptr()); [INFO] [stdout] | ----------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:162:96 [INFO] [stdout] | [INFO] [stdout] 162 | let block_handle = gl.GetUniformBlockIndex(program, CString::new("bitstring").unwrap().as_ptr()); [INFO] [stdout] | ---------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stdout] | | [INFO] [stdout] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stdout] | [INFO] [stdout] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stdout] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `Command { std: "docker" "inspect" "e93e9889a7a0431b42fe573d56b3c634551e9c31be4d572edc102964d7bbba9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e93e9889a7a0431b42fe573d56b3c634551e9c31be4d572edc102964d7bbba9d", kill_on_drop: false }` [INFO] [stdout] e93e9889a7a0431b42fe573d56b3c634551e9c31be4d572edc102964d7bbba9d [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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e6e8ef02f604c8b628d25f956d196c3352fb6f830c32a8d738cb9393f075b674 [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" "e6e8ef02f604c8b628d25f956d196c3352fb6f830c32a8d738cb9393f075b674", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `degree` [INFO] [stderr] --> src/main.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | degree += 1.0f32; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = help: did you mean to capture by reference instead? [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `TRI_COLS` [INFO] [stderr] --> src/main.rs:82:1 [INFO] [stderr] | [INFO] [stderr] 82 | const TRI_COLS: [gles30::GLfloat; 12] = [0.0f32, 1.0f32, 0.0f32, 0.0f32, 0.0f32, 1.0f32, 0.0f32, 0.0f32, 1.0f32, 1.0f32, 0.0f32, 0.0f32]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/main.rs:143:112 [INFO] [stderr] | [INFO] [stderr] 143 | let pos_handle: gles30::GLuint = gl.GetAttribLocation(program, CString::new("VertexPosition").unwrap().as_ptr()) as gles30::GLuint; [INFO] [stderr] | --------------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stderr] | | [INFO] [stderr] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stderr] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stderr] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/main.rs:147:87 [INFO] [stderr] | [INFO] [stderr] 147 | let dims = gl.GetUniformLocation(program, CString::new("Dimensions").unwrap().as_ptr()); [INFO] [stderr] | ----------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stderr] | | [INFO] [stderr] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stderr] | [INFO] [stderr] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stderr] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/main.rs:162:96 [INFO] [stderr] | [INFO] [stderr] 162 | let block_handle = gl.GetUniformBlockIndex(program, CString::new("bitstring").unwrap().as_ptr()); [INFO] [stderr] | ---------------------------------- ^^^^^^ this pointer will be invalid [INFO] [stderr] | | [INFO] [stderr] | this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime [INFO] [stderr] | [INFO] [stderr] = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned [INFO] [stderr] = help: for more information, see https://doc.rust-lang.org/reference/destructors.html [INFO] [stderr] [INFO] [stderr] warning: `waggle` (bin "waggle" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/waggle-f23abe8fb1f1b3a4) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e6e8ef02f604c8b628d25f956d196c3352fb6f830c32a8d738cb9393f075b674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6e8ef02f604c8b628d25f956d196c3352fb6f830c32a8d738cb9393f075b674", kill_on_drop: false }` [INFO] [stdout] e6e8ef02f604c8b628d25f956d196c3352fb6f830c32a8d738cb9393f075b674