[INFO] fetching crate wasmer-engine-dylib 2.0.0...
[INFO] checking wasmer-engine-dylib-2.0.0 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate wasmer-engine-dylib 2.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wasmer-engine-dylib 2.0.0 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-dylib 2.0.0
[INFO] finished tweaking crates.io crate wasmer-engine-dylib 2.0.0
[INFO] tweaked toml for crates.io crate wasmer-engine-dylib 2.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b4f01a746023ca2c35d1764359e1669fa61546f31fa049bbf490582b4c07b38
[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" "5b4f01a746023ca2c35d1764359e1669fa61546f31fa049bbf490582b4c07b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b4f01a746023ca2c35d1764359e1669fa61546f31fa049bbf490582b4c07b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4f01a746023ca2c35d1764359e1669fa61546f31fa049bbf490582b4c07b38", kill_on_drop: false }`
[INFO] [stdout] 5b4f01a746023ca2c35d1764359e1669fa61546f31fa049bbf490582b4c07b38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50fc37abe57c805758c379b55605138751ef4aba077c034b58560b484aa8cec6
[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" "50fc37abe57c805758c379b55605138751ef4aba077c034b58560b484aa8cec6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling rkyv v0.6.7
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]     Checking wasmparser v0.78.2
[INFO] [stderr]    Compiling wasmer-vm v2.0.0
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling loupe-derive v0.1.3
[INFO] [stderr]    Compiling rkyv_derive v0.6.7
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking loupe v0.1.3
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]     Checking wasmer-types v2.0.0
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling enumset_derive v0.5.5
[INFO] [stderr]     Checking enumset v1.0.7
[INFO] [stderr]     Checking wasmer-compiler v2.0.0
[INFO] [stderr]     Checking wasmer-engine v2.0.0
[INFO] [stderr]     Checking wasmer-object v2.0.0
[INFO] [stderr]     Checking wasmer-engine-dylib v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ArchivedModuleMetadata`
[INFO] [stdout]  --> src/artifact.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::serialize::{ArchivedModuleMetadata, ModuleMetadata};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ArchivedModuleMetadata`
[INFO] [stdout]  --> src/artifact.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::serialize::{ArchivedModuleMetadata, ModuleMetadata};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang11`
[INFO] [stdout]    --> src/engine.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     Clang11,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang10`
[INFO] [stdout]    --> src/engine.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 |     Clang10,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang`
[INFO] [stdout]    --> src/engine.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Clang,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gcc`
[INFO] [stdout]    --> src/engine.rs:193:5
[INFO] [stdout]     |
[INFO] [stdout] 193 |     Gcc,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `executable`
[INFO] [stdout]    --> src/engine.rs:220:19
[INFO] [stdout]     |
[INFO] [stdout] 220 |     pub(crate) fn executable(self) -> &'static str {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:319:19
[INFO] [stdout]     |
[INFO] [stdout] 319 |     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:323:19
[INFO] [stdout]     |
[INFO] [stdout] 323 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang11`
[INFO] [stdout]    --> src/engine.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     Clang11,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang10`
[INFO] [stdout]    --> src/engine.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 |     Clang10,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Clang`
[INFO] [stdout]    --> src/engine.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Clang,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gcc`
[INFO] [stdout]    --> src/engine.rs:193:5
[INFO] [stdout]     |
[INFO] [stdout] 193 |     Gcc,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `executable`
[INFO] [stdout]    --> src/engine.rs:220:19
[INFO] [stdout]     |
[INFO] [stdout] 220 |     pub(crate) fn executable(self) -> &'static str {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_cross_compiling`
[INFO] [stdout]    --> src/engine.rs:319:19
[INFO] [stdout]     |
[INFO] [stdout] 319 |     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:323:19
[INFO] [stdout]     |
[INFO] [stdout] 323 |     pub(crate) fn linker(&self) -> Linker {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.52s
[INFO] running `Command { std: "docker" "inspect" "50fc37abe57c805758c379b55605138751ef4aba077c034b58560b484aa8cec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50fc37abe57c805758c379b55605138751ef4aba077c034b58560b484aa8cec6", kill_on_drop: false }`
[INFO] [stdout] 50fc37abe57c805758c379b55605138751ef4aba077c034b58560b484aa8cec6