[INFO] cloning repository https://github.com/gamozolabs/simple_slope_viewer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gamozolabs/simple_slope_viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamozolabs%2Fsimple_slope_viewer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamozolabs%2Fsimple_slope_viewer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7f5f61f2c069d76905c6f9d3c0a4c17d60e7d997 [INFO] testing gamozolabs/simple_slope_viewer against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamozolabs%2Fsimple_slope_viewer" "/workspace/builds/worker-96/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gamozolabs/simple_slope_viewer on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gamozolabs/simple_slope_viewer [INFO] finished tweaking git repo https://github.com/gamozolabs/simple_slope_viewer [INFO] tweaked toml for git repo https://github.com/gamozolabs/simple_slope_viewer written to /workspace/builds/worker-96/source/Cargo.toml [INFO] crate git repo https://github.com/gamozolabs/simple_slope_viewer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--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-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 96c1c6d2fc50ebe6bec59973291a5f02a3a17f23d461c35701545a7060209610 [INFO] running `Command { std: "docker" "start" "-a" "96c1c6d2fc50ebe6bec59973291a5f02a3a17f23d461c35701545a7060209610", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96c1c6d2fc50ebe6bec59973291a5f02a3a17f23d461c35701545a7060209610", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96c1c6d2fc50ebe6bec59973291a5f02a3a17f23d461c35701545a7060209610", kill_on_drop: false }` [INFO] [stdout] 96c1c6d2fc50ebe6bec59973291a5f02a3a17f23d461c35701545a7060209610 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc49edf1d5ab4d139668bacf749a023b2bcb1e47cdf416e4fa1ccc28daed0fdb [INFO] running `Command { std: "docker" "start" "-a" "dc49edf1d5ab4d139668bacf749a023b2bcb1e47cdf416e4fa1ccc28daed0fdb", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling version-compare v0.0.10 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling sdl2 v0.34.3 [INFO] [stderr] Compiling cgmath v0.17.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling parse_ealogpos v0.1.0 (/opt/rustwide/workdir/parse_ealogpos) [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling sdl2-sys v0.34.3 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling gl v0.14.0 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling simple_slope_viewer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:312:9 [INFO] [stdout] | [INFO] [stdout] 312 | let mut idx = Cell::new(1); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:484:69 [INFO] [stdout] | [INFO] [stdout] 484 | ... CString::new("out_color").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: `#[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:487:56 [INFO] [stdout] | [INFO] [stdout] 486 | / ... CString::new("position") [INFO] [stdout] 487 | | ... .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:519:69 [INFO] [stdout] | [INFO] [stdout] 519 | ... CString::new("out_color").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:522:56 [INFO] [stdout] | [INFO] [stdout] 521 | / ... CString::new("position") [INFO] [stdout] 522 | | ... .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 27.21s [INFO] running `Command { std: "docker" "inspect" "dc49edf1d5ab4d139668bacf749a023b2bcb1e47cdf416e4fa1ccc28daed0fdb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc49edf1d5ab4d139668bacf749a023b2bcb1e47cdf416e4fa1ccc28daed0fdb", kill_on_drop: false }` [INFO] [stdout] dc49edf1d5ab4d139668bacf749a023b2bcb1e47cdf416e4fa1ccc28daed0fdb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a8abc8d6165c8ba8cb5c78e57b39b8f10655a363e25c7cff9b18cecfbbda3a6 [INFO] running `Command { std: "docker" "start" "-a" "7a8abc8d6165c8ba8cb5c78e57b39b8f10655a363e25c7cff9b18cecfbbda3a6", kill_on_drop: false }` [INFO] [stderr] Compiling simple_slope_viewer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:312:9 [INFO] [stdout] | [INFO] [stdout] 312 | let mut idx = Cell::new(1); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/main.rs:484:69 [INFO] [stdout] | [INFO] [stdout] 484 | ... CString::new("out_color").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: `#[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:487:56 [INFO] [stdout] | [INFO] [stdout] 486 | / ... CString::new("position") [INFO] [stdout] 487 | | ... .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:519:69 [INFO] [stdout] | [INFO] [stdout] 519 | ... CString::new("out_color").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:522:56 [INFO] [stdout] | [INFO] [stdout] 521 | / ... CString::new("position") [INFO] [stdout] 522 | | ... .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 1.44s [INFO] running `Command { std: "docker" "inspect" "7a8abc8d6165c8ba8cb5c78e57b39b8f10655a363e25c7cff9b18cecfbbda3a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a8abc8d6165c8ba8cb5c78e57b39b8f10655a363e25c7cff9b18cecfbbda3a6", kill_on_drop: false }` [INFO] [stdout] 7a8abc8d6165c8ba8cb5c78e57b39b8f10655a363e25c7cff9b18cecfbbda3a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4c48cb35b4b4f7bd43123eebaffb7532909a8668145e0caab6f82be63db7486b [INFO] running `Command { std: "docker" "start" "-a" "4c48cb35b4b4f7bd43123eebaffb7532909a8668145e0caab6f82be63db7486b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:312:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 312 | let mut idx = Cell::new(1); [INFO] [stdout] [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/main.rs:484:69 [INFO] [stderr] | [INFO] [stderr] 484 | ... CString::new("out_color").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: `#[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:487:56 [INFO] [stderr] | [INFO] [stderr] 486 | / ... CString::new("position") [INFO] [stderr] 487 | | ... .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:519:69 [INFO] [stderr] | [INFO] [stderr] 519 | ... CString::new("out_color").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:522:56 [INFO] [stderr] | [INFO] [stderr] 521 | / ... CString::new("position") [INFO] [stderr] 522 | | ... .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: `simple_slope_viewer` (bin "simple_slope_viewer" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 20.85s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/simple_slope_viewer-424099a4d1a7df7b) [INFO] running `Command { std: "docker" "inspect" "4c48cb35b4b4f7bd43123eebaffb7532909a8668145e0caab6f82be63db7486b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c48cb35b4b4f7bd43123eebaffb7532909a8668145e0caab6f82be63db7486b", kill_on_drop: false }` [INFO] [stdout] 4c48cb35b4b4f7bd43123eebaffb7532909a8668145e0caab6f82be63db7486b