[INFO] fetching crate snafu 0.4.3... [INFO] extracting crate snafu 0.4.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/snafu/0.4.3 [INFO] extracting crate snafu 0.4.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snafu/0.4.3 [INFO] validating manifest of snafu-0.4.3 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of snafu-0.4.3 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing snafu-0.4.3 [INFO] finished frobbing snafu-0.4.3 [INFO] frobbed toml for snafu-0.4.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/snafu/0.4.3/Cargo.toml [INFO] started frobbing snafu-0.4.3 [INFO] finished frobbing snafu-0.4.3 [INFO] frobbed toml for snafu-0.4.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snafu/0.4.3/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pin-project v0.3.4 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing snafu-0.4.3 against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snafu/0.4.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] 800a56905bbb1a93fd74890cfbbf6d8307df950cc6cd83d9df1c3d652d3cf044 [INFO] running `"docker" "start" "-a" "800a56905bbb1a93fd74890cfbbf6d8307df950cc6cd83d9df1c3d652d3cf044"` [INFO] [stderr] Compiling snafu v0.4.3 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.79s [INFO] running `"docker" "inspect" "800a56905bbb1a93fd74890cfbbf6d8307df950cc6cd83d9df1c3d652d3cf044"` [INFO] running `"docker" "rm" "-f" "800a56905bbb1a93fd74890cfbbf6d8307df950cc6cd83d9df1c3d652d3cf044"` [INFO] [stdout] 800a56905bbb1a93fd74890cfbbf6d8307df950cc6cd83d9df1c3d652d3cf044 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snafu/0.4.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] cafd551268e12ad889cb3703aa851cdb7530c4e19ed3032c7bf542861b81d65e [INFO] running `"docker" "start" "-a" "cafd551268e12ad889cb3703aa851cdb7530c4e19ed3032c7bf542861b81d65e"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling snafu v0.4.3 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.85s [INFO] running `"docker" "inspect" "cafd551268e12ad889cb3703aa851cdb7530c4e19ed3032c7bf542861b81d65e"` [INFO] running `"docker" "rm" "-f" "cafd551268e12ad889cb3703aa851cdb7530c4e19ed3032c7bf542861b81d65e"` [INFO] [stdout] cafd551268e12ad889cb3703aa851cdb7530c4e19ed3032c7bf542861b81d65e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snafu/0.4.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] b125469d332e41b919775bd1b944621309def4d21f913e3b91765be0dd2affb8 [INFO] running `"docker" "start" "-a" "b125469d332e41b919775bd1b944621309def4d21f913e3b91765be0dd2affb8"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/crater/target/debug/deps/snafu-589c68603230c256 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/backtrace-b02cbdd085cb212c [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test errors_with_sources_can_have_backtraces ... ok [INFO] [stdout] test errors_with_sources_and_other_info_can_have_backtraces ... ok [INFO] [stdout] test display_can_access_backtrace ... ok [INFO] [stdout] test has_a_backtrace ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/backtrace_attributes-c8efef9c8c72eb22 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/backtrace_delegation-95c02d35edd44db8 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test backtrace_comes_from_inside_the_house ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/basic-9167020c96f786ae [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/boxed_error_trait_object-f8d6cbd30a2b1f26 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/default_error_display-db07ce5c2babbeda [INFO] [stdout] [INFO] [stdout] running 1 test [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/doc_comment-a74f568a8c082726 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test display_is_stronger_than_doc_comment ... ok [INFO] [stdout] test uses_doc_comment ... 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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/generics-1835e8642bb31b77 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test implements_error ... ok [INFO] [stdout] test bounds::where_clause::implements_error ... ok [INFO] [stdout] test bounds::inline::implements_error ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/generics_with_default-0e3249bc815dfd2f [INFO] [stdout] [INFO] [stdout] running 1 test [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/mapping_result_without_try_operator-894a852dc8563ba9 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/name_conflicts-426fb1e423caaec3 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/opaque-5fb4697e0894b80f [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/options-e546ae402f9eaac6 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/recursive_error-dd5c4878a64564ec [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/send_between_threads-d23be792ae2b727f [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/source_attributes-993bebed3ea0e23c [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/visibility-bcc1a443efe40a73 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test can_set_default_visibility ... ok [INFO] [stdout] test outer::can_set_visibility ... ok [INFO] [stdout] test outer::can_set_default_visibility ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests snafu [INFO] [stdout] [INFO] [stdout] running 37 tests [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 125) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 173) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 77) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 153) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 28) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 123) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 100) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::attributes (line 97) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 15) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 114) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 166) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 138) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 46) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 66) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 75) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 93) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 107) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 25) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 15) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 23) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::generics (line 38) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 65) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 79) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::upgrading (line 92) ... ignored [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::comparison::failure (line 59) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::generics (line 8) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::generics (line 66) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::the_macro (line 13) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - guide::opaque (line 15) ... ok [INFO] [stdout] test src/lib.rs - ErrorCompat (line 434) ... ok [INFO] [stdout] test <::doc_comment::doc_comment macros> - readme_tests (line 13) ... ok [INFO] [stdout] test src/lib.rs - (line 21) ... ok [INFO] [stdout] test src/lib.rs - OptionExt::with_context (line 351) ... ok [INFO] [stdout] test src/lib.rs - ensure (line 153) ... ok [INFO] [stdout] test src/lib.rs - OptionExt::context (line 317) ... ok [INFO] [stdout] test src/lib.rs - ResultExt::context (line 183) ... ok [INFO] [stdout] test src/lib.rs - ResultExt::with_context (line 222) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 25 passed; 0 failed; 12 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "b125469d332e41b919775bd1b944621309def4d21f913e3b91765be0dd2affb8"` [INFO] running `"docker" "rm" "-f" "b125469d332e41b919775bd1b944621309def4d21f913e3b91765be0dd2affb8"` [INFO] [stdout] b125469d332e41b919775bd1b944621309def4d21f913e3b91765be0dd2affb8