[INFO] fetching crate snafu 0.7.0-beta.0...
[INFO] testing snafu-0.7.0-beta.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate snafu 0.7.0-beta.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate snafu 0.7.0-beta.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 snafu 0.7.0-beta.0
[INFO] finished tweaking crates.io crate snafu 0.7.0-beta.0
[INFO] tweaked toml for crates.io crate snafu 0.7.0-beta.0 written to /workspace/builds/worker-75/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 7906efe1fa299f628b5059b0d6aa6a4b90e0dd480ccaff151e0f482776ae8f27
[INFO] running `Command { std: "docker" "start" "-a" "7906efe1fa299f628b5059b0d6aa6a4b90e0dd480ccaff151e0f482776ae8f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7906efe1fa299f628b5059b0d6aa6a4b90e0dd480ccaff151e0f482776ae8f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7906efe1fa299f628b5059b0d6aa6a4b90e0dd480ccaff151e0f482776ae8f27", kill_on_drop: false }`
[INFO] [stdout] 7906efe1fa299f628b5059b0d6aa6a4b90e0dd480ccaff151e0f482776ae8f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 4fa0069e5fe0d4283ab13b81d992ab2e09a6e79dfc55fe9323a702181e97fa98
[INFO] running `Command { std: "docker" "start" "-a" "4fa0069e5fe0d4283ab13b81d992ab2e09a6e79dfc55fe9323a702181e97fa98", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling snafu-derive v0.7.0-beta.0
[INFO] [stderr]    Compiling snafu v0.7.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.47s
[INFO] running `Command { std: "docker" "inspect" "4fa0069e5fe0d4283ab13b81d992ab2e09a6e79dfc55fe9323a702181e97fa98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa0069e5fe0d4283ab13b81d992ab2e09a6e79dfc55fe9323a702181e97fa98", kill_on_drop: false }`
[INFO] [stdout] 4fa0069e5fe0d4283ab13b81d992ab2e09a6e79dfc55fe9323a702181e97fa98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 364e75ad60233074a89248081713a538b61763b302d7c54418cee7bfe67db179
[INFO] running `Command { std: "docker" "start" "-a" "364e75ad60233074a89248081713a538b61763b302d7c54418cee7bfe67db179", kill_on_drop: false }`
[INFO] [stderr]    Compiling snafu v0.7.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "364e75ad60233074a89248081713a538b61763b302d7c54418cee7bfe67db179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364e75ad60233074a89248081713a538b61763b302d7c54418cee7bfe67db179", kill_on_drop: false }`
[INFO] [stdout] 364e75ad60233074a89248081713a538b61763b302d7c54418cee7bfe67db179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 6f5926269687cb5d016cc8ee13642db6047f35929441f07745e8fa4fcbaf12cb
[INFO] running `Command { std: "docker" "start" "-a" "6f5926269687cb5d016cc8ee13642db6047f35929441f07745e8fa4fcbaf12cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snafu-d2b873105d36d70a)
[INFO] [stderr]      Running tests/backtrace.rs (/opt/rustwide/target/debug/deps/backtrace-c1c7d427fe27d19a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[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 3 tests
[INFO] [stdout] test display_can_access_backtrace ... ok
[INFO] [stdout] test errors_with_sources_and_other_info_can_have_backtraces ... ok
[INFO] [stdout] test errors_with_sources_can_have_backtraces ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/backtrace-optional.rs (/opt/rustwide/target/debug/deps/backtrace_optional-b36d04f0974009bc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/backtrace-optional-enabled.rs (/opt/rustwide/target/debug/deps/backtrace_optional_enabled-cf80fdb0ee0201b9)
[INFO] [stdout] test bare_backtrace_is_always_present ... ok
[INFO] [stdout] test optional_backtrace_is_not_present_without_environment_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test optional_backtrace_is_present_with_environment_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/backtrace_attributes.rs (/opt/rustwide/target/debug/deps/backtrace_attributes-b2d4a9aa851ec808)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-41e48a773bd70434)
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/boxed_error_trait_object.rs (/opt/rustwide/target/debug/deps/boxed_error_trait_object-cfae80204d7556cd)
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/build-leaf-error.rs (/opt/rustwide/target/debug/deps/build_leaf_error-d2932edbcec85696)
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/context_selector_name.rs (/opt/rustwide/target/debug/deps/context_selector_name-5195c1b9abd95240)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/default_error_display.rs (/opt/rustwide/target/debug/deps/default_error_display-1ada8c6bf90da380)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/doc_comment.rs (/opt/rustwide/target/debug/deps/doc_comment-881b6a032df5f154)
[INFO] [stdout] test default_error_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] test display_is_stronger_than_doc_comment ... ok
[INFO] [stdout] test uses_doc_comment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ensure.rs (/opt/rustwide/target/debug/deps/ensure-23955e378f983261)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test accepts_trailing_commas ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/generics.rs (/opt/rustwide/target/debug/deps/generics-f63731e0e8133104)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/generics_with_default.rs (/opt/rustwide/target/debug/deps/generics_with_default-0f98ab1a2fcc3655)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test bounds::inline::implements_error ... ok
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] test bounds::where_clause::implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/mapping_result_without_try_operator.rs (/opt/rustwide/target/debug/deps/mapping_result_without_try_operator-02e528169def1311)
[INFO] [stdout] test default_with_lifetime::implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test can_be_used_without_question_mark ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/multiple_attributes.rs (/opt/rustwide/target/debug/deps/multiple_attributes-cac269b564cba019)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test is_visible ... ok
[INFO] [stdout] test has_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/name-conflicts.rs (/opt/rustwide/target/debug/deps/name_conflicts-cb5a879993cd9124)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/no_context.rs (/opt/rustwide/target/debug/deps/no_context-84477cff4df33cac)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[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 3 tests
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] test with_bounds::implements_error ... ok
[INFO] [stderr]      Running tests/opaque.rs (/opt/rustwide/target/debug/deps/opaque-068af6e76248f5db)
[INFO] [stdout] test with_backtraces::implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running tests/options.rs (/opt/rustwide/target/debug/deps/options-f36955d90d779128)
[INFO] [stdout] test ensure_boxed ... ok
[INFO] [stdout] test ensure_opaque ... ok
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running tests/premade_error.rs (/opt/rustwide/target/debug/deps/premade_error-8083e671b6c32e8c)
[INFO] [stdout] test can_wrap_cause_with_a_formatted_string_via_trait ... ok
[INFO] [stdout] test does_not_need_a_cause ... ok
[INFO] [stdout] test implements_error ... ok
[INFO] [stderr]      Running tests/raw_idents.rs (/opt/rustwide/target/debug/deps/raw_idents-84e78f742078ce7c)
[INFO] [stdout] test can_be_recursive ... ok
[INFO] [stdout] test can_wrap_cause_with_a_formatted_string_via_macro ... ok
[INFO] [stdout] test has_a_backtrace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] test creates_context_selectors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/recursive_error.rs (/opt/rustwide/target/debug/deps/recursive_error-20cd7eae3f4e3f15)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/send_between_threads.rs (/opt/rustwide/target/debug/deps/send_between_threads-e2bb5236bd5c23c6)
[INFO] [stdout] running 1 test
[INFO] [stdout] test implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/single_use_lifetimes_lint.rs (/opt/rustwide/target/debug/deps/single_use_lifetimes_lint-85121c9a7a8a251c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test implements_thread_safe_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_compiles ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/source_attributes.rs (/opt/rustwide/target/debug/deps/source_attributes-43e93dc750406cb4)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test enabling::implements_error ... ok
[INFO] [stdout] test transformation::api_implements_error ... ok
[INFO] [stdout] test transformation::implements_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stringly_typed.rs (/opt/rustwide/target/debug/deps/stringly_typed-2d49b7362065216c)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test message_and_source::can_access_the_cause ... ok
[INFO] [stdout] test message_and_source::can_be_recursive ... ok
[INFO] [stdout] test message_and_source::does_not_need_a_cause ... ok
[INFO] [stdout] test message_and_source::implements_error ... ok
[INFO] [stdout] test message_only::can_use_a_formatted_string ... ok
[INFO] [stdout] test message_only::implements_error ... ok
[INFO] [stdout] test message_source_and_backtrace::can_use_a_formatted_string ... ok
[INFO] [stdout] test message_and_source::can_use_a_formatted_string_via_macro ... ok
[INFO] [stdout] test message_source_and_backtrace::implements_error ... ok
[INFO] [stdout] test struck::message_source_and_backtrace::implements_error ... ok
[INFO] [stdout] test message_source_and_backtrace::has_a_backtrace ... ok
[INFO] [stdout] test struck::message_source_and_backtrace::can_use_a_formatted_string ... ok
[INFO] [stdout] test message_and_source::can_use_a_formatted_string_via_trait ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/structs.rs (/opt/rustwide/target/debug/deps/structs-d59a5611e03c5c11)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test backtrace::can_include_a_backtrace_in_leaf ... ok
[INFO] [stdout] test backtrace::can_include_a_backtrace_with_source ... ok
[INFO] [stdout] test backtrace_attributes::no_argument_treated_as_backtrace ... ok
[INFO] [stdout] test display::defaults_to_name_of_struct ... ok
[INFO] [stdout] test backtrace_attributes::explicit_false_not_treated_as_backtrace ... ok
[INFO] [stdout] test display::doc_comment_used_as_display ... ok
[INFO] [stdout] test backtrace_attributes::explicit_true_treated_as_backtrace ... ok
[INFO] [stdout] test generics::bounds::inline::are_preserved ... ok
[INFO] [stdout] test from_option::can_be_used_as_context_on_an_option ... ok
[INFO] [stdout] test generics::bounds::where_clause::are_preserved ... ok
[INFO] [stdout] test generics::lifetimes::are_allowed ... ok
[INFO] [stdout] test generics::types::are_allowed ... ok
[INFO] [stdout] test no_context::does_not_need_context_method ... ok
[INFO] [stdout] test no_context::with_source_transformation::does_not_need_context_method ... ok
[INFO] [stdout] test backtrace::can_include_a_backtrace_with_no_context ... ok
[INFO] [stdout] test source_attributes::enabling::no_argument_treated_as_source ... ok
[INFO] [stdout] test single_use_lifetimes::an_error_with_generic_lifetimes_does_not_trigger_the_lint ... ok
[INFO] [stdout] test generics::types::with_defaults::allows_non_default_types ... ok
[INFO] [stdout] test source_attributes::enabling::false_argument_not_treated_as_source ... ok
[INFO] [stdout] test context_selector_name::trimming_implements_error ... ok
[INFO] [stdout] test display::attribute_is_stronger_than_doc_comment ... ok
[INFO] [stdout] test source_attributes::enabling::from_argument_treated_as_source ... ok
[INFO] [stdout] test context_selector_name::alpha_implements_error ... ok
[INFO] [stdout] test source_attributes::transformation::transformation_via_closure ... ok
[INFO] [stdout] test source_attributes::transformation::transformation_via_function ... ok
[INFO] [stdout] test with_source::implements_error ... ok
[INFO] [stdout] test without_source::implements_error ... ok
[INFO] [stdout] test visibility::can_set_visibility ... ok
[INFO] [stdout] test source_attributes::enabling::true_argument_treated_as_source ... ok
[INFO] [stdout] test source_attributes::transformation::transformation_to_trait_object ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/visibility.rs (/opt/rustwide/target/debug/deps/visibility-a6b4db7f7159be79)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests snafu
[INFO] [stdout] running 3 tests
[INFO] [stdout] test can_set_default_visibility ... ok
[INFO] [stdout] test outer::can_set_default_visibility ... ok
[INFO] [stdout] test outer::can_set_visibility ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 319) ... ignored
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 352) ... ignored
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 361) ... ignored
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 381) ... ignored
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 403) ... ignored
[INFO] [stdout] test src/lib.rs - guide::the_macro (line 429) ... ignored
[INFO] [stdout] test src/lib.rs - guide::troubleshooting::missing_field_source (line 271) ... ignored
[INFO] [stdout] test src/lib.rs - guide::troubleshooting::missing_field_source (line 288) ... ignored
[INFO] [stdout] test src/lib.rs - guide::troubleshooting::missing_field_source (line 336) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 341) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 353) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 376) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 389) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 409) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 434) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 442) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 484) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 498) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 511) ... ignored
[INFO] [stdout] test src/lib.rs - guide::upgrading (line 526) ... ignored
[INFO] [stdout] test src/lib.rs - OptionExt::context (line 648) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - Whatever (line 1093) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name snafu --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern doc_comment=/opt/rustwide/target/debug/deps/libdoc_comment-04fe685c62158979.rlib --extern snafu=/opt/rustwide/target/debug/deps/libsnafu-3440a10204629bbb.rlib --extern snafu_derive=/opt/rustwide/target/debug/deps/libsnafu_derive-2c264c8ded0d580e.so -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="guide"' --cfg 'feature="std"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "6f5926269687cb5d016cc8ee13642db6047f35929441f07745e8fa4fcbaf12cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5926269687cb5d016cc8ee13642db6047f35929441f07745e8fa4fcbaf12cb", kill_on_drop: false }`
[INFO] [stdout] 6f5926269687cb5d016cc8ee13642db6047f35929441f07745e8fa4fcbaf12cb