[INFO] fetching crate problem 5.0.0...
[INFO] extracting crate problem 5.0.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/problem/5.0.0
[INFO] extracting crate problem 5.0.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/problem/5.0.0
[INFO] validating manifest of problem-5.0.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of problem-5.0.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing problem-5.0.0
[INFO] finished frobbing problem-5.0.0
[INFO] frobbed toml for problem-5.0.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/problem/5.0.0/Cargo.toml
[INFO] started frobbing problem-5.0.0
[INFO] finished frobbing problem-5.0.0
[INFO] frobbed toml for problem-5.0.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/problem/5.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing problem-5.0.0 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/problem/5.0.0:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 139d14c18b69d65ba5cf276c20d95f692b3f98ef6f803c80307627889955df25
[INFO] running `"docker" "start" "-a" "139d14c18b69d65ba5cf276c20d95f692b3f98ef6f803c80307627889955df25"`
[INFO] [stderr]    Compiling problem v5.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:457:32
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn write_error_message(error: &Error, w: &mut impl Write) -> fmt::Result {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:462:42
[INFO] [stderr]     |
[INFO] [stderr] 462 |         if let Some(cause) = error_cause.cause() {
[INFO] [stderr]     |                                          ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `"docker" "inspect" "139d14c18b69d65ba5cf276c20d95f692b3f98ef6f803c80307627889955df25"`
[INFO] running `"docker" "rm" "-f" "139d14c18b69d65ba5cf276c20d95f692b3f98ef6f803c80307627889955df25"`
[INFO] [stdout] 139d14c18b69d65ba5cf276c20d95f692b3f98ef6f803c80307627889955df25
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/problem/5.0.0:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] c97b040df19641b5b430c93666a5e9386875876f04c894e28f24d11e88d0469e
[INFO] running `"docker" "start" "-a" "c97b040df19641b5b430c93666a5e9386875876f04c894e28f24d11e88d0469e"`
[INFO] [stderr]    Compiling problem v5.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:457:32
[INFO] [stderr]     |
[INFO] [stderr] 457 | fn write_error_message(error: &Error, w: &mut impl Write) -> fmt::Result {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:462:42
[INFO] [stderr]     |
[INFO] [stderr] 462 |         if let Some(cause) = error_cause.cause() {
[INFO] [stderr]     |                                          ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `"docker" "inspect" "c97b040df19641b5b430c93666a5e9386875876f04c894e28f24d11e88d0469e"`
[INFO] running `"docker" "rm" "-f" "c97b040df19641b5b430c93666a5e9386875876f04c894e28f24d11e88d0469e"`
[INFO] [stdout] c97b040df19641b5b430c93666a5e9386875876f04c894e28f24d11e88d0469e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/problem/5.0.0:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] be5c2b5fc4adce84a66d96425cb4c70a1c26376c5640cab67ca0ea2470ec1d6c
[INFO] running `"docker" "start" "-a" "be5c2b5fc4adce84a66d96425cb4c70a1c26376c5640cab67ca0ea2470ec1d6c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/problem-d668c3922e58b42c
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test tests::test_convertion ... ok
[INFO] [stdout] test tests::test_in_context_of ... ok
[INFO] [stdout] test tests::test_integration_cause_chain ... ok
[INFO] [stdout] test tests::test_integration ... ok
[INFO] [stderr] problem::logged: Continuing with error: Baz error; caused by: Bar error; caused by: Foo error
[INFO] [stdout] test tests::test_integration_message ... ok
[INFO] [stdout] test tests::test_problem_backtrace ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_problem_log_error ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_problem_log_iter_error ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_problem_log_warn ... ok
[INFO] [stderr] problem::logged: Continuing with error: Baz error; caused by: Bar error; caused by: Foo error
[INFO] [stdout] test tests::test_option_errors ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_problem_log_iter_warn ... ok
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stderr] problem::logged: Continuing with error: Foo error
[INFO] [stdout] test tests::test_option ... ok
[INFO] [stdout] test tests::test_result ... ok
[INFO] [stdout] test tests::test_panic_format_stderr ... ok
[INFO] [stdout] test tests::test_result_cause_chain ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_expect ... ok
[INFO] [stdout] test tests::test_result_option_errors_unknown ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_unwrap ... ok
[INFO] [stdout] test tests::test_panic_format_stderr_problem ... ok
[INFO] [stdout] test tests::test_result_ok_or_problem ... ok
[INFO] [stdout] test tests::test_result_iter_or_failed_to ... ok
[INFO] [stdout] test tests::test_result_cause_chain_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/skeptic-24c4462e325c5993
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] Fatal error: thread 'main' panicked at src/lib.rs:657:35 with: Failed to create a string due to: invalid utf-8 sequence of 1 bytes from index 2
[INFO] [stdout] test readme_sect_example_line_27 ... ok
[INFO] [stdout] test readme_sect_example_line_42 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests problem
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/lib.rs -  (line 133) ... ok
[INFO] [stdout] test src/lib.rs -  (line 161) ... ok
[INFO] [stdout] test src/lib.rs -  (line 151) ... ok
[INFO] [stdout] test src/lib.rs -  (line 108) ... ok
[INFO] [stdout] test src/lib.rs -  (line 204) ... ok
[INFO] [stdout] test src/lib.rs -  (line 121) ... ok
[INFO] [stdout] test src/lib.rs -  (line 175) ... ok
[INFO] [stdout] test src/lib.rs -  (line 189) ... ok
[INFO] [stdout] test src/lib.rs -  (line 238) ... ok
[INFO] [stdout] test src/lib.rs -  (line 251) ... ok
[INFO] [stdout] test src/lib.rs -  (line 266) ... ok
[INFO] [stdout] test src/lib.rs -  (line 394) ... ok
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] test src/lib.rs -  (line 38) ... ok
[INFO] [stdout] test src/lib.rs -  (line 52) ... ok
[INFO] [stdout] test src/lib.rs -  (line 65) ... ok
[INFO] [stdout] test src/lib.rs -  (line 96) ... ok
[INFO] [stdout] test src/lib.rs -  (line 285) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "be5c2b5fc4adce84a66d96425cb4c70a1c26376c5640cab67ca0ea2470ec1d6c"`
[INFO] running `"docker" "rm" "-f" "be5c2b5fc4adce84a66d96425cb4c70a1c26376c5640cab67ca0ea2470ec1d6c"`
[INFO] [stdout] be5c2b5fc4adce84a66d96425cb4c70a1c26376c5640cab67ca0ea2470ec1d6c