[INFO] fetching crate wasmer-engine-native 1.0.0-alpha4...
[INFO] testing wasmer-engine-native-1.0.0-alpha4 against 1.47.0 for beta-1.48-1
[INFO] extracting crate wasmer-engine-native 1.0.0-alpha4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate wasmer-engine-native 1.0.0-alpha4 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-native 1.0.0-alpha4
[INFO] finished tweaking crates.io crate wasmer-engine-native 1.0.0-alpha4
[INFO] tweaked toml for crates.io crate wasmer-engine-native 1.0.0-alpha4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 110aaa57b7a2381fc01faa141131d85bb0dbdecbc1ff61f78e897cf689467de5
[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" "110aaa57b7a2381fc01faa141131d85bb0dbdecbc1ff61f78e897cf689467de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110aaa57b7a2381fc01faa141131d85bb0dbdecbc1ff61f78e897cf689467de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110aaa57b7a2381fc01faa141131d85bb0dbdecbc1ff61f78e897cf689467de5", kill_on_drop: false }`
[INFO] [stdout] 110aaa57b7a2381fc01faa141131d85bb0dbdecbc1ff61f78e897cf689467de5
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63f9a8930afd8f8c9f2ee15c696f9ff2badd20e712fddf1fb9a84adb04e84e1c
[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" "63f9a8930afd8f8c9f2ee15c696f9ff2badd20e712fddf1fb9a84adb04e84e1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha4
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling wasmer-compiler v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-object v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.0-alpha4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Triple`
[INFO] [stdout]   --> src/engine.rs:10:45
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasmer_compiler::{CompileError, Target, Triple};
[INFO] [stdout]    |                                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 237 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:299:19
[INFO] [stdout]     |
[INFO] [stdout] 299 |     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:303:19
[INFO] [stdout]     |
[INFO] [stdout] 303 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.82s
[INFO] running `Command { std: "docker" "inspect" "63f9a8930afd8f8c9f2ee15c696f9ff2badd20e712fddf1fb9a84adb04e84e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f9a8930afd8f8c9f2ee15c696f9ff2badd20e712fddf1fb9a84adb04e84e1c", kill_on_drop: false }`
[INFO] [stdout] 63f9a8930afd8f8c9f2ee15c696f9ff2badd20e712fddf1fb9a84adb04e84e1c
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79d6008dfa5b5722bd0762f2719d46286f0b5e31cedaa13a4548f57a6bcd020c
[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" "79d6008dfa5b5722bd0762f2719d46286f0b5e31cedaa13a4548f57a6bcd020c", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.0-alpha4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Triple`
[INFO] [stdout]   --> src/engine.rs:10:45
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasmer_compiler::{CompileError, Target, Triple};
[INFO] [stdout]    |                                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 237 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:299:19
[INFO] [stdout]     |
[INFO] [stdout] 299 |     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:303:19
[INFO] [stdout]     |
[INFO] [stdout] 303 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Triple`
[INFO] [stdout]   --> src/engine.rs:10:45
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasmer_compiler::{CompileError, Target, Triple};
[INFO] [stdout]    |                                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |     is_cross_compiling: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `linker`
[INFO] [stdout]    --> src/engine.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 237 |     linker: Linker,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:299:19
[INFO] [stdout]     |
[INFO] [stdout] 299 |     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:303:19
[INFO] [stdout]     |
[INFO] [stdout] 303 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "79d6008dfa5b5722bd0762f2719d46286f0b5e31cedaa13a4548f57a6bcd020c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d6008dfa5b5722bd0762f2719d46286f0b5e31cedaa13a4548f57a6bcd020c", kill_on_drop: false }`
[INFO] [stdout] 79d6008dfa5b5722bd0762f2719d46286f0b5e31cedaa13a4548f57a6bcd020c
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac0e8296e1073affd427a43d29f4af7ed10f4d2ca59bd02536337c0d913d8031
[INFO] running `Command { std: "docker" "start" "-a" "ac0e8296e1073affd427a43d29f4af7ed10f4d2ca59bd02536337c0d913d8031", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Triple`
[INFO] [stderr]   --> src/engine.rs:10:45
[INFO] [stderr]    |
[INFO] [stderr] 10 | use wasmer_compiler::{CompileError, Target, Triple};
[INFO] [stderr]    |                                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:235:5
[INFO] [stderr]     |
[INFO] [stderr] 235 |     is_cross_compiling: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `linker`
[INFO] [stderr]    --> src/engine.rs:237:5
[INFO] [stderr]     |
[INFO] [stderr] 237 |     linker: Linker,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:299:19
[INFO] [stderr]     |
[INFO] [stderr] 299 |     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:303:19
[INFO] [stderr]     |
[INFO] [stderr] 303 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stderr]     |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Triple`
[INFO] [stderr]   --> src/engine.rs:10:45
[INFO] [stderr]    |
[INFO] [stderr] 10 | use wasmer_compiler::{CompileError, Target, Triple};
[INFO] [stderr]    |                                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:235:5
[INFO] [stderr]     |
[INFO] [stderr] 235 |     is_cross_compiling: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `linker`
[INFO] [stderr]    --> src/engine.rs:237:5
[INFO] [stderr]     |
[INFO] [stderr] 237 |     linker: Linker,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_cross_compiling`
[INFO] [stderr]    --> src/engine.rs:299:19
[INFO] [stderr]     |
[INFO] [stderr] 299 |     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:303:19
[INFO] [stderr]     |
[INFO] [stderr] 303 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stderr]     |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wasmer_engine_native-fcc153266251dfb8
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wasmer-engine-native
[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
[INFO] [stdout] 
[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" "ac0e8296e1073affd427a43d29f4af7ed10f4d2ca59bd02536337c0d913d8031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0e8296e1073affd427a43d29f4af7ed10f4d2ca59bd02536337c0d913d8031", kill_on_drop: false }`
[INFO] [stdout] ac0e8296e1073affd427a43d29f4af7ed10f4d2ca59bd02536337c0d913d8031
