[INFO] fetching crate from_variants_impl 0.5.0...
[INFO] checking from_variants_impl-0.5.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate from_variants_impl 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate from_variants_impl 0.5.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate from_variants_impl 0.5.0
[INFO] finished tweaking crates.io crate from_variants_impl 0.5.0
[INFO] tweaked toml for crates.io crate from_variants_impl 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fcbe8ad4ba3111c1e2f2666cad02f47bb5eed7d2ef29d7a6421f7c047a1de79
[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" "0fcbe8ad4ba3111c1e2f2666cad02f47bb5eed7d2ef29d7a6421f7c047a1de79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fcbe8ad4ba3111c1e2f2666cad02f47bb5eed7d2ef29d7a6421f7c047a1de79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fcbe8ad4ba3111c1e2f2666cad02f47bb5eed7d2ef29d7a6421f7c047a1de79", kill_on_drop: false }`
[INFO] [stdout] 0fcbe8ad4ba3111c1e2f2666cad02f47bb5eed7d2ef29d7a6421f7c047a1de79
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b3642c57e2f038d42f9b3baf65e9793c5dad29a1c9f1cab0b51a0bb76de16212
[INFO] running `Command { std: "docker" "start" "-a" "b3642c57e2f038d42f9b3baf65e9793c5dad29a1c9f1cab0b51a0bb76de16212", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking from_variants_impl v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.01s
[INFO] running `Command { std: "docker" "inspect" "b3642c57e2f038d42f9b3baf65e9793c5dad29a1c9f1cab0b51a0bb76de16212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3642c57e2f038d42f9b3baf65e9793c5dad29a1c9f1cab0b51a0bb76de16212", kill_on_drop: false }`
[INFO] [stdout] b3642c57e2f038d42f9b3baf65e9793c5dad29a1c9f1cab0b51a0bb76de16212