[INFO] fetching crate first-err 0.2.2...
[INFO] testing first-err-0.2.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate first-err 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate first-err 0.2.2
[INFO] finished tweaking crates.io crate first-err 0.2.2
[INFO] tweaked toml for crates.io crate first-err 0.2.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate first-err 0.2.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 72 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dca2aebf498f966d8049d299d183e9375dfd44cb71cbbc72fdbca9c4d8ddfc1
[INFO] running `Command { std: "docker" "start" "-a" "9dca2aebf498f966d8049d299d183e9375dfd44cb71cbbc72fdbca9c4d8ddfc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dca2aebf498f966d8049d299d183e9375dfd44cb71cbbc72fdbca9c4d8ddfc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dca2aebf498f966d8049d299d183e9375dfd44cb71cbbc72fdbca9c4d8ddfc1", kill_on_drop: false }`
[INFO] [stdout] 9dca2aebf498f966d8049d299d183e9375dfd44cb71cbbc72fdbca9c4d8ddfc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752288183b9abd0eabee8c6a1fe9f63f7724bf6b43efd7ad2e18f722eaf957f1
[INFO] running `Command { std: "docker" "start" "-a" "752288183b9abd0eabee8c6a1fe9f63f7724bf6b43efd7ad2e18f722eaf957f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling first-err v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "752288183b9abd0eabee8c6a1fe9f63f7724bf6b43efd7ad2e18f722eaf957f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752288183b9abd0eabee8c6a1fe9f63f7724bf6b43efd7ad2e18f722eaf957f1", kill_on_drop: false }`
[INFO] [stdout] 752288183b9abd0eabee8c6a1fe9f63f7724bf6b43efd7ad2e18f722eaf957f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b02806c2de29367e1e7c354712370ae938c8bd5be88a9016f36e54b5975162d
[INFO] running `Command { std: "docker" "start" "-a" "1b02806c2de29367e1e7c354712370ae938c8bd5be88a9016f36e54b5975162d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling first-err v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "1b02806c2de29367e1e7c354712370ae938c8bd5be88a9016f36e54b5975162d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b02806c2de29367e1e7c354712370ae938c8bd5be88a9016f36e54b5975162d", kill_on_drop: false }`
[INFO] [stdout] 1b02806c2de29367e1e7c354712370ae938c8bd5be88a9016f36e54b5975162d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc6cb317a0a0c1c69314cd093e51c2e45ad41129879a57b344cb3c0c827a497d
[INFO] running `Command { std: "docker" "start" "-a" "fc6cb317a0a0c1c69314cd093e51c2e45ad41129879a57b344cb3c0c827a497d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/first_err-2a2f93606049051c)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test tests::test_first_err::_methods_can_call_through_trait_object ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_never_call_next_on_orig_iter_after_first_err_found ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_not_need_to_consume_iter_manually ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_1_layer_data_and_with_err ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_use_lazy_evaluation ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_2_layer_data_and_outmost_err_in_layer_1 ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_1_layer_data_and_without_err ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_3_layer_data_and_outmost_err_in_layer_2 ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_non_fused_iterator ... ok
[INFO] [stdout] test tests::test_first_err::_or_else_with_2_layer_data_and_outmost_err_in_layer_2 ... ok
[INFO] [stdout] test tests::test_first_err::_or_try_with_err_and_closure_produce_err ... ok
[INFO] [stdout] test tests::test_first_err::_or_try_with_err_and_closure_produce_ok ... ok
[INFO] [stdout] test tests::test_first_err::_or_try_without_err_and_closure_produce_err ... ok
[INFO] [stdout] test tests::test_first_err::_or_try_without_err_and_closure_produce_ok ... ok
[INFO] [stdout] test tests::test_first_err::_or_with_err ... ok
[INFO] [stdout] test tests::test_first_err::_or_without_err ... ok
[INFO] [stdout] test tests::test_first_none::_methods_can_call_through_trait_object ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_not_need_to_consume_iter_manually ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_never_call_next_on_orig_iter_after_first_none_found ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_1_layer_data_and_with_none ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_use_lazy_evaluation ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_non_fused_iterator ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_1_layer_data_and_without_none ... ok
[INFO] [stdout] test tests::test_first_none::_or_try_with_none_and_closure_produce_none ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_2_layer_data_and_outmost_none_in_layer_1 ... ok
[INFO] [stdout] test tests::test_first_none::_or_try_with_none_and_closure_produce_some ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_3_layer_data_and_outmost_none_in_layer_2 ... ok
[INFO] [stdout] test tests::test_first_none::_or_else_with_2_layer_data_and_outmost_none_in_layer_2 ... ok
[INFO] [stdout] test tests::test_first_none::_or_without_none ... ok
[INFO] [stdout] test tests::test_first_none::_or_try_without_none_and_closure_produce_some ... ok
[INFO] [stdout] test tests::test_first_none::_or_with_none ... ok
[INFO] [stdout] test tests::test_first_none::_or_try_without_none_and_closure_produce_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests first_err
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/lib.rs - FirstErr (line 244) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_err_or (line 368) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_none_or_try (line 473) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr (line 227) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_err_or_try (line 334) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_none_or (line 506) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - (line 133) ... ok
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_none_or_else (line 403) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_err_or_try (line 302) ... ok
[INFO] [stdout] test src/lib.rs - (line 103) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_none_or_try (line 441) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr (line 196) ... ok
[INFO] [stdout] test src/lib.rs - FirstErr::first_err_or_else (line 264) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc6cb317a0a0c1c69314cd093e51c2e45ad41129879a57b344cb3c0c827a497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6cb317a0a0c1c69314cd093e51c2e45ad41129879a57b344cb3c0c827a497d", kill_on_drop: false }`
[INFO] [stdout] fc6cb317a0a0c1c69314cd093e51c2e45ad41129879a57b344cb3c0c827a497d