[INFO] fetching crate wasmer-engine-object-file 1.0.0-alpha4...
[INFO] checking wasmer-engine-object-file-1.0.0-alpha4 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate wasmer-engine-object-file 1.0.0-alpha4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate wasmer-engine-object-file 1.0.0-alpha4 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-object-file 1.0.0-alpha4
[INFO] finished tweaking crates.io crate wasmer-engine-object-file 1.0.0-alpha4
[INFO] tweaked toml for crates.io crate wasmer-engine-object-file 1.0.0-alpha4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d882518c750ae1034bdcbdd82c956858d74ae0ef564c314b7d49a65af9fc4f0f
[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" "d882518c750ae1034bdcbdd82c956858d74ae0ef564c314b7d49a65af9fc4f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d882518c750ae1034bdcbdd82c956858d74ae0ef564c314b7d49a65af9fc4f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d882518c750ae1034bdcbdd82c956858d74ae0ef564c314b7d49a65af9fc4f0f", kill_on_drop: false }`
[INFO] [stdout] d882518c750ae1034bdcbdd82c956858d74ae0ef564c314b7d49a65af9fc4f0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce5618973f27c0870ea2f7218fa1cf0777c16d382839324e0fda5dbdb437c5f1
[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" "ce5618973f27c0870ea2f7218fa1cf0777c16d382839324e0fda5dbdb437c5f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking libloading v0.6.5
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking enumset v1.0.1
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking cranelift-entity v0.65.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking wasmer-types v1.0.0-alpha4
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]     Checking wasmer-vm v1.0.0-alpha4
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha4
[INFO] [stderr]     Checking wasmer-object v1.0.0-alpha4
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha4
[INFO] [stderr]     Checking wasmer-engine-object-file v1.0.0-alpha4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `to_compile_error`
[INFO] [stdout]   --> src/artifact.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn to_compile_error(err: impl Error) -> CompileError {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WASMER_METADATA_SYMBOL`
[INFO] [stdout]   --> src/artifact.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | const WASMER_METADATA_SYMBOL: &[u8] = b"WASMER_METADATA";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_compile_error`
[INFO] [stdout]   --> src/artifact.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn to_compile_error(err: impl Error) -> CompileError {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WASMER_METADATA_SYMBOL`
[INFO] [stdout]   --> src/artifact.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | const WASMER_METADATA_SYMBOL: &[u8] = b"WASMER_METADATA";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "ce5618973f27c0870ea2f7218fa1cf0777c16d382839324e0fda5dbdb437c5f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5618973f27c0870ea2f7218fa1cf0777c16d382839324e0fda5dbdb437c5f1", kill_on_drop: false }`
[INFO] [stdout] ce5618973f27c0870ea2f7218fa1cf0777c16d382839324e0fda5dbdb437c5f1