[INFO] fetching crate wasmer-engine-native 1.0.2...
[INFO] testing wasmer-engine-native-1.0.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate wasmer-engine-native 1.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wasmer-engine-native 1.0.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-native 1.0.2
[INFO] finished tweaking crates.io crate wasmer-engine-native 1.0.2
[INFO] tweaked toml for crates.io crate wasmer-engine-native 1.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51f37c62364fa6233ce354ac5cc6984a13fb45d7b01b40a8cab71eb4bb7b1424
[INFO] running `Command { std: "docker" "start" "-a" "51f37c62364fa6233ce354ac5cc6984a13fb45d7b01b40a8cab71eb4bb7b1424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51f37c62364fa6233ce354ac5cc6984a13fb45d7b01b40a8cab71eb4bb7b1424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f37c62364fa6233ce354ac5cc6984a13fb45d7b01b40a8cab71eb4bb7b1424", kill_on_drop: false }`
[INFO] [stdout] 51f37c62364fa6233ce354ac5cc6984a13fb45d7b01b40a8cab71eb4bb7b1424
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72db0374b21d5fc60ffc7a0fa10b90739583ab997b3fb84825ef8a144786f73d
[INFO] running `Command { std: "docker" "start" "-a" "72db0374b21d5fc60ffc7a0fa10b90739583ab997b3fb84825ef8a144786f73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]    Compiling wasmparser v0.65.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling wasmer-vm v1.0.2
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling object v0.25.2
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling enumset_derive v0.5.4
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling enumset v1.0.6
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling wasmer-types v1.0.2
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling wasmer-compiler v1.0.2
[INFO] [stderr]    Compiling wasmer-engine v1.0.2
[INFO] [stderr]    Compiling wasmer-object v1.0.2
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]  --> src/builder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     target: Option<Target>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `features`
[INFO] [stdout]  --> src/builder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     features: Option<Features>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang10`
[INFO] [stdout]    --> src/engine.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     Clang10,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang`
[INFO] [stdout]    --> src/engine.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     Clang,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gcc`
[INFO] [stdout]    --> src/engine.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     Gcc,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefixer`
[INFO] [stdout]    --> src/engine.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:228:5
[INFO] [stdout]     |
[INFO] [stdout] 228 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:281:19
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub(crate) fn is_cross_compiling(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `linker`
[INFO] [stdout]    --> src/engine.rs:285:19
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.81s
[INFO] running `Command { std: "docker" "inspect" "72db0374b21d5fc60ffc7a0fa10b90739583ab997b3fb84825ef8a144786f73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72db0374b21d5fc60ffc7a0fa10b90739583ab997b3fb84825ef8a144786f73d", kill_on_drop: false }`
[INFO] [stdout] 72db0374b21d5fc60ffc7a0fa10b90739583ab997b3fb84825ef8a144786f73d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8910e1206eeae34923ab5b8467593ec9ab9f924a54c65f5418f50348d1209257
[INFO] running `Command { std: "docker" "start" "-a" "8910e1206eeae34923ab5b8467593ec9ab9f924a54c65f5418f50348d1209257", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]  --> src/builder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     target: Option<Target>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `features`
[INFO] [stdout]  --> src/builder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     features: Option<Features>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang10`
[INFO] [stdout]    --> src/engine.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     Clang10,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang`
[INFO] [stdout]    --> src/engine.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     Clang,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gcc`
[INFO] [stdout]    --> src/engine.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     Gcc,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefixer`
[INFO] [stdout]    --> src/engine.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:228:5
[INFO] [stdout]     |
[INFO] [stdout] 228 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:281:19
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub(crate) fn is_cross_compiling(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `linker`
[INFO] [stdout]    --> src/engine.rs:285:19
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]  --> src/builder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     target: Option<Target>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `features`
[INFO] [stdout]  --> src/builder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     features: Option<Features>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang10`
[INFO] [stdout]    --> src/engine.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     Clang10,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang`
[INFO] [stdout]    --> src/engine.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     Clang,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gcc`
[INFO] [stdout]    --> src/engine.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 |     Gcc,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefixer`
[INFO] [stdout]    --> src/engine.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:228:5
[INFO] [stdout]     |
[INFO] [stdout] 228 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:281:19
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub(crate) fn is_cross_compiling(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `linker`
[INFO] [stdout]    --> src/engine.rs:285:19
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "8910e1206eeae34923ab5b8467593ec9ab9f924a54c65f5418f50348d1209257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8910e1206eeae34923ab5b8467593ec9ab9f924a54c65f5418f50348d1209257", kill_on_drop: false }`
[INFO] [stdout] 8910e1206eeae34923ab5b8467593ec9ab9f924a54c65f5418f50348d1209257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb18d52d11ee574c676867e933519cc0c5c4841984b6ee1dc78cdf7adb397bcb
[INFO] running `Command { std: "docker" "start" "-a" "eb18d52d11ee574c676867e933519cc0c5c4841984b6ee1dc78cdf7adb397bcb", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `target`
[INFO] [stderr]  --> src/builder.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     target: Option<Target>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `features`
[INFO] [stderr]  --> src/builder.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     features: Option<Features>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Clang10`
[INFO] [stderr]    --> src/engine.rs:196:5
[INFO] [stderr]     |
[INFO] [stderr] 196 |     Clang10,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Clang`
[INFO] [stderr]    --> src/engine.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     Clang,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gcc`
[INFO] [stderr]    --> src/engine.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     Gcc,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prefixer`
[INFO] [stderr]    --> src/engine.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 |     is_cross_compiling: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `linker`
[INFO] [stderr]    --> src/engine.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 |     linker: Linker,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:281:19
[INFO] [stderr]     |
[INFO] [stderr] 281 |     pub(crate) fn is_cross_compiling(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `linker`
[INFO] [stderr]    --> src/engine.rs:285:19
[INFO] [stderr]     |
[INFO] [stderr] 285 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stderr]     |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `target`
[INFO] [stderr]  --> src/builder.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     target: Option<Target>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `features`
[INFO] [stderr]  --> src/builder.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     features: Option<Features>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Clang10`
[INFO] [stderr]    --> src/engine.rs:196:5
[INFO] [stderr]     |
[INFO] [stderr] 196 |     Clang10,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Clang`
[INFO] [stderr]    --> src/engine.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     Clang,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gcc`
[INFO] [stderr]    --> src/engine.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     Gcc,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prefixer`
[INFO] [stderr]    --> src/engine.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 |     is_cross_compiling: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `linker`
[INFO] [stderr]    --> src/engine.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 |     linker: Linker,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:281:19
[INFO] [stderr]     |
[INFO] [stderr] 281 |     pub(crate) fn is_cross_compiling(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `linker`
[INFO] [stderr]    --> src/engine.rs:285:19
[INFO] [stderr]     |
[INFO] [stderr] 285 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stderr]     |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wasmer_engine_native-c3d3e527d93786ff)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test builder::tests::build_headless_engine ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wasmer-engine-native
[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" "eb18d52d11ee574c676867e933519cc0c5c4841984b6ee1dc78cdf7adb397bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb18d52d11ee574c676867e933519cc0c5c4841984b6ee1dc78cdf7adb397bcb", kill_on_drop: false }`
[INFO] [stdout] eb18d52d11ee574c676867e933519cc0c5c4841984b6ee1dc78cdf7adb397bcb