[INFO] fetching crate varcon 1.0.1...
[INFO] testing varcon-1.0.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate varcon 1.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate varcon 1.0.1
[INFO] finished tweaking crates.io crate varcon 1.0.1
[INFO] tweaked toml for crates.io crate varcon 1.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate varcon 1.0.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded codegenrs v3.0.2
[INFO] [stderr]   Downloaded varcon-core v5.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e08ffe71874afd2dd4d9fbb185479dfc115fad2ef2d3f6caa5c2d8d08eb9f872
[INFO] running `Command { std: "docker" "start" "-a" "e08ffe71874afd2dd4d9fbb185479dfc115fad2ef2d3f6caa5c2d8d08eb9f872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e08ffe71874afd2dd4d9fbb185479dfc115fad2ef2d3f6caa5c2d8d08eb9f872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e08ffe71874afd2dd4d9fbb185479dfc115fad2ef2d3f6caa5c2d8d08eb9f872", kill_on_drop: false }`
[INFO] [stdout] e08ffe71874afd2dd4d9fbb185479dfc115fad2ef2d3f6caa5c2d8d08eb9f872
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90f5df3a894a4a9103b8fca625970eb0cf377dc9e67f2da557c26e8dcbba3df0
[INFO] running `Command { std: "docker" "start" "-a" "90f5df3a894a4a9103b8fca625970eb0cf377dc9e67f2da557c26e8dcbba3df0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling enumflags2_derive v0.7.12
[INFO] [stderr]    Compiling enumflags2 v0.7.12
[INFO] [stderr]    Compiling varcon-core v5.0.4
[INFO] [stderr]    Compiling varcon v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `varcon` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/caccb4d0368bd918ef6668af8e13834d07040417/bin/rustc --crate-name varcon --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --warn=rust_2018_idioms '--warn=clippy::zero_sized_map_values' '--warn=clippy::wildcard_imports' '--warn=clippy::verbose_file_reads' --warn=unused_qualifications --warn=unused_macro_rules --warn=unused_lifetimes --warn=unsafe_op_in_unsafe_fn --warn=unreachable_pub '--warn=clippy::uninlined_format_args' '--warn=clippy::trait_duplication_in_bounds' '--warn=clippy::todo' '--warn=clippy::string_to_string' '--warn=clippy::string_lit_as_bytes' '--warn=clippy::string_add_assign' '--warn=clippy::string_add' '--warn=clippy::str_to_string' '--warn=clippy::semicolon_if_nothing_returned' '--warn=clippy::self_named_module_files' '--warn=clippy::same_functions_in_if_condition' '--allow=clippy::result_large_err' '--warn=clippy::rest_pat_in_fully_bound_structs' '--warn=clippy::ref_option_ref' '--warn=clippy::redundant_feature_names' '--warn=clippy::rc_mutex' '--warn=clippy::ptr_as_ptr' '--warn=clippy::path_buf_push_overwrite' '--warn=clippy::negative_feature_names' '--warn=clippy::needless_for_each' '--warn=clippy::mutex_integer' '--warn=clippy::mem_forget' '--warn=clippy::macro_use_imports' '--warn=clippy::lossy_float_literal' '--warn=clippy::linkedlist' '--allow=clippy::let_and_return' '--warn=clippy::large_types_passed_by_value' '--warn=clippy::large_stack_arrays' '--warn=clippy::large_digit_groups' '--warn=clippy::invalid_upcast_comparisons' '--warn=clippy::infinite_loop' '--warn=clippy::inefficient_to_string' '--warn=clippy::inconsistent_struct_constructor' '--warn=clippy::imprecise_flops' '--warn=clippy::implicit_clone' '--allow=clippy::if_same_then_else' '--warn=clippy::from_iter_instead_of_collect' '--warn=clippy::fn_params_excessive_bools' '--warn=clippy::float_cmp_const' '--warn=clippy::flat_map_option' '--warn=clippy::filter_map_next' '--warn=clippy::fallible_impl_from' '--warn=clippy::explicit_into_iter_loop' '--warn=clippy::explicit_deref_methods' '--warn=clippy::expl_impl_clone_on_copy' '--warn=clippy::enum_glob_use' '--warn=clippy::empty_enum' '--warn=clippy::doc_markdown' '--warn=clippy::debug_assert_with_mut_call' '--warn=clippy::dbg_macro' '--warn=clippy::create_dir' '--allow=clippy::collapsible_else_if' '--warn=clippy::checked_conversions' '--allow=clippy::branches_sharing_code' '--allow=clippy::bool_assert_comparison' --cfg 'feature="all"' --cfg 'feature="default"' --cfg 'feature="flags"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("all", "default", "flags"))' -C metadata=e1cdcfdc046065d9 -C extra-filename=-a2a728a19d687413 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern varcon_core=/opt/rustwide/target/debug/deps/libvarcon_core-9eef5d8476d903a4.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "90f5df3a894a4a9103b8fca625970eb0cf377dc9e67f2da557c26e8dcbba3df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f5df3a894a4a9103b8fca625970eb0cf377dc9e67f2da557c26e8dcbba3df0", kill_on_drop: false }`
[INFO] [stdout] 90f5df3a894a4a9103b8fca625970eb0cf377dc9e67f2da557c26e8dcbba3df0