[INFO] fetching crate namespaces-rs 0.1.1... [INFO] testing namespaces-rs-0.1.1 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take4 [INFO] extracting crate namespaces-rs 0.1.1 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate namespaces-rs 0.1.1 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8aa6dac93bfa419477fcfbae2b497bb097635c00e49a3fad3dcc8820e52f1abc [INFO] running `Command { std: "docker" "start" "-a" "8aa6dac93bfa419477fcfbae2b497bb097635c00e49a3fad3dcc8820e52f1abc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8aa6dac93bfa419477fcfbae2b497bb097635c00e49a3fad3dcc8820e52f1abc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aa6dac93bfa419477fcfbae2b497bb097635c00e49a3fad3dcc8820e52f1abc", kill_on_drop: false }` [INFO] [stdout] 8aa6dac93bfa419477fcfbae2b497bb097635c00e49a3fad3dcc8820e52f1abc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 282d7edf30f4b32db6495c7cc63b5e3ab4ea4357d4d61863247adb9cefc0614b [INFO] running `Command { std: "docker" "start" "-a" "282d7edf30f4b32db6495c7cc63b5e3ab4ea4357d4d61863247adb9cefc0614b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.138 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling serde v1.0.150 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling remove_dir_all v0.5.3 [INFO] [stderr] Compiling fastrand v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.89 [INFO] [stderr] Compiling anyhow v1.0.66 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling regex-syntax v0.6.28 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling itoa v1.0.4 [INFO] [stderr] Compiling ryu v1.0.11 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling crossbeam-channel v0.4.4 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.38 [INFO] [stderr] Compiling getrandom v0.2.8 [INFO] [stderr] Compiling tempfile v3.3.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling uuid v0.8.2 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling regex v1.7.0 [INFO] [stderr] Compiling bincode v1.3.3 [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: field `genre` is never read [INFO] [stdout] --> src/basic.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Namespace { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 16 | genre: NsType, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Namespace` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: 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: 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] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.01s [INFO] running `Command { std: "docker" "inspect" "282d7edf30f4b32db6495c7cc63b5e3ab4ea4357d4d61863247adb9cefc0614b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "282d7edf30f4b32db6495c7cc63b5e3ab4ea4357d4d61863247adb9cefc0614b", kill_on_drop: false }` [INFO] [stdout] 282d7edf30f4b32db6495c7cc63b5e3ab4ea4357d4d61863247adb9cefc0614b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 43f90bfda93c359024978dd01e0cd99a6317d4c6f19a083a2e26b34fbe19c987 [INFO] running `Command { std: "docker" "start" "-a" "43f90bfda93c359024978dd01e0cd99a6317d4c6f19a083a2e26b34fbe19c987", kill_on_drop: false }` [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: field `genre` is never read [INFO] [stdout] --> src/basic.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Namespace { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 16 | genre: NsType, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Namespace` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: 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: 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] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 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: field `genre` is never read [INFO] [stdout] --> src/basic.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Namespace { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 16 | genre: NsType, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Namespace` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `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: 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: 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] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.94s [INFO] running `Command { std: "docker" "inspect" "43f90bfda93c359024978dd01e0cd99a6317d4c6f19a083a2e26b34fbe19c987", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43f90bfda93c359024978dd01e0cd99a6317d4c6f19a083a2e26b34fbe19c987", kill_on_drop: false }` [INFO] [stdout] 43f90bfda93c359024978dd01e0cd99a6317d4c6f19a083a2e26b34fbe19c987 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 38532d8017d59b0168f130eb979857d9a10b84401ab7dabfda22491e79f13e0b [INFO] running `Command { std: "docker" "start" "-a" "38532d8017d59b0168f130eb979857d9a10b84401ab7dabfda22491e79f13e0b", 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: field `genre` is never read [INFO] [stderr] --> src/basic.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 15 | pub struct Namespace { [INFO] [stderr] | --------- field in this struct [INFO] [stderr] 16 | genre: NsType, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Namespace` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `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: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `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: 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: 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] = note: `#[warn(temporary_cstring_as_ptr)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `namespaces-rs` (lib) generated 6 warnings [INFO] [stderr] warning: `namespaces-rs` (lib test) generated 6 warnings (6 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/namespaces-c9bccf27e4521a44) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "38532d8017d59b0168f130eb979857d9a10b84401ab7dabfda22491e79f13e0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38532d8017d59b0168f130eb979857d9a10b84401ab7dabfda22491e79f13e0b", kill_on_drop: false }` [INFO] [stdout] 38532d8017d59b0168f130eb979857d9a10b84401ab7dabfda22491e79f13e0b