[INFO] fetching crate wasmer-engine 2.0.0...
[INFO] testing wasmer-engine-2.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wasmer-engine 2.0.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate wasmer-engine 2.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine 2.0.0
[INFO] finished tweaking crates.io crate wasmer-engine 2.0.0
[INFO] tweaked toml for crates.io crate wasmer-engine 2.0.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eadbc8a9c1f3a88ac1e5ba8222b38f6149074416abf3ce25f832cf7666415bb8
[INFO] running `Command { std: "docker" "start" "-a" "eadbc8a9c1f3a88ac1e5ba8222b38f6149074416abf3ce25f832cf7666415bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eadbc8a9c1f3a88ac1e5ba8222b38f6149074416abf3ce25f832cf7666415bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eadbc8a9c1f3a88ac1e5ba8222b38f6149074416abf3ce25f832cf7666415bb8", kill_on_drop: false }`
[INFO] [stdout] eadbc8a9c1f3a88ac1e5ba8222b38f6149074416abf3ce25f832cf7666415bb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc537bdfee1c9e4e4fa1e7ab38d3397970d351af1730f684102dbd1c23972002
[INFO] running `Command { std: "docker" "start" "-a" "bc537bdfee1c9e4e4fa1e7ab38d3397970d351af1730f684102dbd1c23972002", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling rkyv v0.6.7
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling memmap2 v0.2.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling loupe-derive v0.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling rkyv_derive v0.6.7
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling wasmer-vm v2.0.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling enumset_derive v0.5.5
[INFO] [stderr]    Compiling enumset v1.0.7
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling loupe v0.1.3
[INFO] [stderr]    Compiling wasmer-types v2.0.0
[INFO] [stderr]    Compiling wasmer-compiler v2.0.0
[INFO] [stderr]    Compiling wasmer-engine v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.55s
[INFO] running `Command { std: "docker" "inspect" "bc537bdfee1c9e4e4fa1e7ab38d3397970d351af1730f684102dbd1c23972002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc537bdfee1c9e4e4fa1e7ab38d3397970d351af1730f684102dbd1c23972002", kill_on_drop: false }`
[INFO] [stdout] bc537bdfee1c9e4e4fa1e7ab38d3397970d351af1730f684102dbd1c23972002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f8e539be1fd639621a8313ec051d9b9adeec3b98cc1f82e43ff6fa19d971992
[INFO] running `Command { std: "docker" "start" "-a" "5f8e539be1fd639621a8313ec051d9b9adeec3b98cc1f82e43ff6fa19d971992", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wasmer-engine v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "5f8e539be1fd639621a8313ec051d9b9adeec3b98cc1f82e43ff6fa19d971992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8e539be1fd639621a8313ec051d9b9adeec3b98cc1f82e43ff6fa19d971992", kill_on_drop: false }`
[INFO] [stdout] 5f8e539be1fd639621a8313ec051d9b9adeec3b98cc1f82e43ff6fa19d971992
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77510f72ef06fe33fb0932ec1d341222098a9b785384693d2d56ce26fdb1c24a
[INFO] running `Command { std: "docker" "start" "-a" "77510f72ef06fe33fb0932ec1d341222098a9b785384693d2d56ce26fdb1c24a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wasmer_engine-c401f79660cd9618)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wasmer-engine
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/resolver.rs - resolver::Resolver::resolve (line 30) ... ignored
[INFO] [stdout] test src/trap/frame_info.rs - trap::frame_info (line 7) ... ignored
[INFO] [stdout] test src/resolver.rs - resolver::ChainableNamedResolver (line 303) ... ok
[INFO] [stdout] test src/resolver.rs - resolver::ChainableNamedResolver::chain_back (line 339) ... ok
[INFO] [stdout] test src/resolver.rs - resolver::ChainableNamedResolver::chain_front (line 318) ... ok
[INFO] [stdout] test src/trap/error.rs - trap::error::RuntimeError::new (line 52) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 1.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77510f72ef06fe33fb0932ec1d341222098a9b785384693d2d56ce26fdb1c24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77510f72ef06fe33fb0932ec1d341222098a9b785384693d2d56ce26fdb1c24a", kill_on_drop: false }`
[INFO] [stdout] 77510f72ef06fe33fb0932ec1d341222098a9b785384693d2d56ce26fdb1c24a