[INFO] fetching crate namespaces-rs 0.1.1... [INFO] testing namespaces-rs-0.1.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] extracting crate namespaces-rs 0.1.1 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate namespaces-rs 0.1.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate namespaces-rs 0.1.1 [INFO] finished tweaking crates.io crate namespaces-rs 0.1.1 [INFO] tweaked toml for crates.io crate namespaces-rs 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0e38132055015686168010b43146fff5e0307a614976cd518e62510ba7b1a9fd [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" "0e38132055015686168010b43146fff5e0307a614976cd518e62510ba7b1a9fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0e38132055015686168010b43146fff5e0307a614976cd518e62510ba7b1a9fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e38132055015686168010b43146fff5e0307a614976cd518e62510ba7b1a9fd", kill_on_drop: false }` [INFO] [stdout] 0e38132055015686168010b43146fff5e0307a614976cd518e62510ba7b1a9fd [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b8d53433e606cc81bd449a146616a43942a057fb96fed5ed3779f7b3198d777 [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" "2b8d53433e606cc81bd449a146616a43942a057fb96fed5ed3779f7b3198d777", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling anyhow v1.0.34 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling crossbeam-channel v0.4.4 [INFO] [stderr] Compiling net2 v0.2.36 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling uuid v0.8.1 [INFO] [stderr] Compiling bincode v1.3.1 [INFO] [stderr] Compiling ipc-channel v0.14.1 [INFO] [stderr] Compiling namespaces-rs v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:15:41 [INFO] [stdout] | [INFO] [stdout] 15 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/basic.rs:38:65 [INFO] [stdout] | [INFO] [stdout] 38 | std::ffi::CString::new(i.as_str()).unwrap().as_ptr() as *const libc::c_char, [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: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | tx.send(f()); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | tx.send(res); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 36.00s [INFO] running `Command { std: "docker" "inspect" "2b8d53433e606cc81bd449a146616a43942a057fb96fed5ed3779f7b3198d777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b8d53433e606cc81bd449a146616a43942a057fb96fed5ed3779f7b3198d777", kill_on_drop: false }` [INFO] [stdout] 2b8d53433e606cc81bd449a146616a43942a057fb96fed5ed3779f7b3198d777 [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ce078bb84a7ea6ccdde0459557dd00d95d0f706655c441e427581316dc661b6 [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" "1ce078bb84a7ea6ccdde0459557dd00d95d0f706655c441e427581316dc661b6", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:15:41 [INFO] [stdout] | [INFO] [stdout] 15 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/basic.rs:38:65 [INFO] [stdout] | [INFO] [stdout] 38 | std::ffi::CString::new(i.as_str()).unwrap().as_ptr() as *const libc::c_char, [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: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | tx.send(f()); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | tx.send(res); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling namespaces-rs v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:15:41 [INFO] [stdout] | [INFO] [stdout] 15 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/advanced.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stdout] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: getting the inner pointer of a temporary `CString` [INFO] [stdout] --> src/basic.rs:38:65 [INFO] [stdout] | [INFO] [stdout] 38 | std::ffi::CString::new(i.as_str()).unwrap().as_ptr() as *const libc::c_char, [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: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | tx.send(f()); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/advanced.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | tx.send(res); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.02s [INFO] running `Command { std: "docker" "inspect" "1ce078bb84a7ea6ccdde0459557dd00d95d0f706655c441e427581316dc661b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ce078bb84a7ea6ccdde0459557dd00d95d0f706655c441e427581316dc661b6", kill_on_drop: false }` [INFO] [stdout] 1ce078bb84a7ea6ccdde0459557dd00d95d0f706655c441e427581316dc661b6 [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b00059a6b77535f4fbc2a3994b6bceb48a844bc4fb280aa83f0bba73c71ec93c [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" "b00059a6b77535f4fbc2a3994b6bceb48a844bc4fb280aa83f0bba73c71ec93c", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `child` [INFO] [stderr] --> src/advanced.rs:15:41 [INFO] [stderr] | [INFO] [stderr] 15 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stderr] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `child` [INFO] [stderr] --> src/advanced.rs:43:41 [INFO] [stderr] | [INFO] [stderr] 43 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stderr] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/basic.rs:38:65 [INFO] [stderr] | [INFO] [stderr] 38 | std::ffi::CString::new(i.as_str()).unwrap().as_ptr() as *const libc::c_char, [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/advanced.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | tx.send(f()); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/advanced.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | tx.send(res); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `child` [INFO] [stderr] --> src/advanced.rs:15:41 [INFO] [stderr] | [INFO] [stderr] 15 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stderr] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `child` [INFO] [stderr] --> src/advanced.rs:43:41 [INFO] [stderr] | [INFO] [stderr] 43 | Ok(unistd::ForkResult::Parent { child, .. }) => { [INFO] [stderr] | ^^^^^ help: try ignoring the field: `child: _` [INFO] [stderr] [INFO] [stderr] warning: getting the inner pointer of a temporary `CString` [INFO] [stderr] --> src/basic.rs:38:65 [INFO] [stderr] | [INFO] [stderr] 38 | std::ffi::CString::new(i.as_str()).unwrap().as_ptr() as *const libc::c_char, [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/advanced.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | tx.send(f()); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/advanced.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | tx.send(res); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/namespaces-7015ef9f16105d4e [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test basic::tests::get_specific_namespaces_test ... ok [INFO] [stdout] test basic::tests::get_namespaces_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests namespaces [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b00059a6b77535f4fbc2a3994b6bceb48a844bc4fb280aa83f0bba73c71ec93c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b00059a6b77535f4fbc2a3994b6bceb48a844bc4fb280aa83f0bba73c71ec93c", kill_on_drop: false }` [INFO] [stdout] b00059a6b77535f4fbc2a3994b6bceb48a844bc4fb280aa83f0bba73c71ec93c