[INFO] fetching crate wasmer-engine-native 1.0.0-alpha5...
[INFO] testing wasmer-engine-native-1.0.0-alpha5 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate wasmer-engine-native 1.0.0-alpha5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate wasmer-engine-native 1.0.0-alpha5 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-native 1.0.0-alpha5
[INFO] finished tweaking crates.io crate wasmer-engine-native 1.0.0-alpha5
[INFO] tweaked toml for crates.io crate wasmer-engine-native 1.0.0-alpha5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", 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] af8cebfd12235d3c3bb863288919a65ed1542ea1e48871fde6f827a60a67275f
[INFO] running `Command { std: "docker" "start" "-a" "af8cebfd12235d3c3bb863288919a65ed1542ea1e48871fde6f827a60a67275f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af8cebfd12235d3c3bb863288919a65ed1542ea1e48871fde6f827a60a67275f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8cebfd12235d3c3bb863288919a65ed1542ea1e48871fde6f827a60a67275f", kill_on_drop: false }`
[INFO] [stdout] af8cebfd12235d3c3bb863288919a65ed1542ea1e48871fde6f827a60a67275f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8caa9dcca538e7113a770f282d7f3c740ad80d913428bd9c40c96427592d0c2
[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" "f8caa9dcca538e7113a770f282d7f3c740ad80d913428bd9c40c96427592d0c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha5
[INFO] [stderr]    Compiling libloading v0.6.5
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[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 addr2line v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling cranelift-entity v0.67.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling wasmer-types v1.0.0-alpha5
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling wasmer-compiler v1.0.0-alpha5
[INFO] [stderr]    Compiling wasmer-object v1.0.0-alpha5
[INFO] [stderr]    Compiling wasmer-engine v1.0.0-alpha5
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.0-alpha5 (/opt/rustwide/workdir)
[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]     = note: `#[warn(dead_code)]` on by default
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 00s
[INFO] running `Command { std: "docker" "inspect" "f8caa9dcca538e7113a770f282d7f3c740ad80d913428bd9c40c96427592d0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8caa9dcca538e7113a770f282d7f3c740ad80d913428bd9c40c96427592d0c2", kill_on_drop: false }`
[INFO] [stdout] f8caa9dcca538e7113a770f282d7f3c740ad80d913428bd9c40c96427592d0c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95c97c0add5352416ed8c3d7b245e2639f8109ea353897266b32feaa13c65adf
[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" "95c97c0add5352416ed8c3d7b245e2639f8109ea353897266b32feaa13c65adf", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.0-alpha5 (/opt/rustwide/workdir)
[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]     = note: `#[warn(dead_code)]` on by default
[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: 4 warnings emitted
[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]     = note: `#[warn(dead_code)]` on by default
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "95c97c0add5352416ed8c3d7b245e2639f8109ea353897266b32feaa13c65adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c97c0add5352416ed8c3d7b245e2639f8109ea353897266b32feaa13c65adf", kill_on_drop: false }`
[INFO] [stdout] 95c97c0add5352416ed8c3d7b245e2639f8109ea353897266b32feaa13c65adf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] 97cc2f81ce652f807475f0d2f9420ae4927c82ede129e6d57732afbf82c8ed9f
[INFO] running `Command { std: "docker" "start" "-a" "97cc2f81ce652f807475f0d2f9420ae4927c82ede129e6d57732afbf82c8ed9f", kill_on_drop: false }`
[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]     = note: `#[warn(dead_code)]` on by default
[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: 4 warnings emitted
[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]     = note: `#[warn(dead_code)]` on by default
[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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wasmer_engine_native-b6483e1cea12f280
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests wasmer-engine-native
[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" "97cc2f81ce652f807475f0d2f9420ae4927c82ede129e6d57732afbf82c8ed9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97cc2f81ce652f807475f0d2f9420ae4927c82ede129e6d57732afbf82c8ed9f", kill_on_drop: false }`
[INFO] [stdout] 97cc2f81ce652f807475f0d2f9420ae4927c82ede129e6d57732afbf82c8ed9f