[INFO] fetching crate wasmer-engine-object-file 1.0.0-alpha5...
[INFO] checking wasmer-engine-object-file-1.0.0-alpha5 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate wasmer-engine-object-file 1.0.0-alpha5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wasmer-engine-object-file 1.0.0-alpha5 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-object-file 1.0.0-alpha5
[INFO] finished tweaking crates.io crate wasmer-engine-object-file 1.0.0-alpha5
[INFO] tweaked toml for crates.io crate wasmer-engine-object-file 1.0.0-alpha5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloading v0.6.5
[INFO] [stderr]   Downloaded pin-project-lite v0.1.11
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded tracing v0.1.21
[INFO] [stderr]   Downloaded tracing-core v0.1.17
[INFO] [stderr]   Downloaded wasmer-engine v1.0.0-alpha5
[INFO] [stderr]   Downloaded wasmer-object v1.0.0-alpha5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b37f30ea2f747bb202c3076b013d2ddabadf210495151d7bee68e33be5a5aed6
[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" "b37f30ea2f747bb202c3076b013d2ddabadf210495151d7bee68e33be5a5aed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b37f30ea2f747bb202c3076b013d2ddabadf210495151d7bee68e33be5a5aed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37f30ea2f747bb202c3076b013d2ddabadf210495151d7bee68e33be5a5aed6", kill_on_drop: false }`
[INFO] [stdout] b37f30ea2f747bb202c3076b013d2ddabadf210495151d7bee68e33be5a5aed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb190b2581d785e1af75c21cc92a82814450999c5ced15140dfa2dc3e003ca4f
[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" "eb190b2581d785e1af75c21cc92a82814450999c5ced15140dfa2dc3e003ca4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha5
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking cranelift-entity v0.67.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking wasmer-types v1.0.0-alpha5
[INFO] [stderr]     Checking enumset v1.0.1
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-object v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha5
[INFO] [stderr]     Checking wasmer-engine-object-file v1.0.0-alpha5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `to_compile_error`
[INFO] [stdout]   --> src/artifact.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | 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:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | 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:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | 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:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | 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 22.12s
[INFO] running `Command { std: "docker" "inspect" "eb190b2581d785e1af75c21cc92a82814450999c5ced15140dfa2dc3e003ca4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb190b2581d785e1af75c21cc92a82814450999c5ced15140dfa2dc3e003ca4f", kill_on_drop: false }`
[INFO] [stdout] eb190b2581d785e1af75c21cc92a82814450999c5ced15140dfa2dc3e003ca4f