[INFO] fetching crate wasmer-engine-dummy 1.0.0-alpha01.0...
[INFO] checking wasmer-engine-dummy-1.0.0-alpha01.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate wasmer-engine-dummy 1.0.0-alpha01.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate wasmer-engine-dummy 1.0.0-alpha01.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-dummy 1.0.0-alpha01.0
[INFO] finished tweaking crates.io crate wasmer-engine-dummy 1.0.0-alpha01.0
[INFO] tweaked toml for crates.io crate wasmer-engine-dummy 1.0.0-alpha01.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea29e968310f4053ed1156bbbe64799ec57721333a05121a870f4a684592fb17
[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" "ea29e968310f4053ed1156bbbe64799ec57721333a05121a870f4a684592fb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea29e968310f4053ed1156bbbe64799ec57721333a05121a870f4a684592fb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea29e968310f4053ed1156bbbe64799ec57721333a05121a870f4a684592fb17", kill_on_drop: false }`
[INFO] [stdout] ea29e968310f4053ed1156bbbe64799ec57721333a05121a870f4a684592fb17
[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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f42b532d7e181800b64bbbf4dc86570960f4328f534048207e66e2a1bb893b78
[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" "f42b532d7e181800b64bbbf4dc86570960f4328f534048207e66e2a1bb893b78", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha3
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking enumset v1.0.1
[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-alpha3
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha3
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha3
[INFO] [stderr]     Checking wasmer-engine-dummy v1.0.0-alpha01.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "f42b532d7e181800b64bbbf4dc86570960f4328f534048207e66e2a1bb893b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42b532d7e181800b64bbbf4dc86570960f4328f534048207e66e2a1bb893b78", kill_on_drop: false }`
[INFO] [stdout] f42b532d7e181800b64bbbf4dc86570960f4328f534048207e66e2a1bb893b78