[INFO] fetching crate regen 0.1.0...
[INFO] testing regen-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate regen 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate regen 0.1.0
[INFO] finished tweaking crates.io crate regen 0.1.0
[INFO] tweaked toml for crates.io crate regen 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate regen 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate regen 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.6.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae0b1deb42e4568e9a84f0eb8ddf69c6857b2dff1237e524101c9cd03173f75c
[INFO] running `Command { std: "docker" "start" "-a" "ae0b1deb42e4568e9a84f0eb8ddf69c6857b2dff1237e524101c9cd03173f75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae0b1deb42e4568e9a84f0eb8ddf69c6857b2dff1237e524101c9cd03173f75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0b1deb42e4568e9a84f0eb8ddf69c6857b2dff1237e524101c9cd03173f75c", kill_on_drop: false }`
[INFO] [stdout] ae0b1deb42e4568e9a84f0eb8ddf69c6857b2dff1237e524101c9cd03173f75c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6ddcc36b0c4e0209bf4fc56013e00328aed163edb5df63e7ec92706d7ad6ac3
[INFO] running `Command { std: "docker" "start" "-a" "a6ddcc36b0c4e0209bf4fc56013e00328aed163edb5df63e7ec92706d7ad6ac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling regen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "a6ddcc36b0c4e0209bf4fc56013e00328aed163edb5df63e7ec92706d7ad6ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ddcc36b0c4e0209bf4fc56013e00328aed163edb5df63e7ec92706d7ad6ac3", kill_on_drop: false }`
[INFO] [stdout] a6ddcc36b0c4e0209bf4fc56013e00328aed163edb5df63e7ec92706d7ad6ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44ac457b45dc9b2ee3ff085fbc7920855a4e4d44cbb51566be5993355076bb91
[INFO] running `Command { std: "docker" "start" "-a" "44ac457b45dc9b2ee3ff085fbc7920855a4e4d44cbb51566be5993355076bb91", kill_on_drop: false }`
[INFO] [stderr]    Compiling regen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "44ac457b45dc9b2ee3ff085fbc7920855a4e4d44cbb51566be5993355076bb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ac457b45dc9b2ee3ff085fbc7920855a4e4d44cbb51566be5993355076bb91", kill_on_drop: false }`
[INFO] [stdout] 44ac457b45dc9b2ee3ff085fbc7920855a4e4d44cbb51566be5993355076bb91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db855e38aa5f6e096ca89570bede1c164b16b8334356380f25a7489ba72376f9
[INFO] running `Command { std: "docker" "start" "-a" "db855e38aa5f6e096ca89570bede1c164b16b8334356380f25a7489ba72376f9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/regen-e9dc771c33b077e7)
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stdout] test appending_iterators::tests::alternation_byte_class ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_reports_alt_element_counts ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_concatenation ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_reports_alt_min_elements ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_resets ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::byte_class_resets ... ok
[INFO] [stdout] test appending_iterators::tests::byte_literal_returns_min_elements_in_bytes ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_reports_element_count_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_reports_min_elements_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_resets ... ok
[INFO] [stdout] test appending_iterators::tests::char_literal_returns_min_elements_in_chars ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::byte_class_reports_element_count_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_alternation ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_byte_class ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_reports_total_element_count ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_reports_total_min_elements ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::empty_alternation_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::empty_byte_class_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::empty_repeat_returns_empty_string ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_resets ... ok
[INFO] [stdout] test appending_iterators::tests::empty_concatenation_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::literal_returns_one_value ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_alternation ... ok
[INFO] [stdout] test appending_iterators::tests::literal_resets ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_reports_element_count ... ok
[INFO] [stdout] test appending_iterators::tests::byte_class_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::byte_literal_returns_element_count_in_bytes ... ok
[INFO] [stdout] test appending_iterators::tests::char_literal_returns_element_count_in_chars ... ok
[INFO] [stdout] test appending_iterators::tests::empty_char_class_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_with_zero_reports_zero_min_elements ... ok
[INFO] [stdout] test tests::alternation ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_alternation_respects_max_element_hint ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_reports_min_elements ... ok
[INFO] [stdout] test tests::concat ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_byte_class ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_respects_max_element_hint ... ok
[INFO] [stdout] test tests::byte_dot_all ... ok
[INFO] [stdout] test tests::empty_returns_nothing ... ok
[INFO] [stdout] test tests::class ... ok
[INFO] [stdout] test tests::literal ... ok
[INFO] [stdout] test tests::max_length ... ok
[INFO] [stdout] test tests::max_length_with_alternation_branches_of_unequal_length ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_uses_all_values ... ok
[INFO] [stdout] test tests::repetition_range_exactly ... ok
[INFO] [stdout] test tests::repetition_zero_or_one ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_resets ... ok
[INFO] [stdout] test tests::max_length_with_fixed_parts ... ok
[INFO] [stdout] test tests::repetition_range ... ok
[INFO] [stdout] test tests::unfinished_alternation_branch_is_ignored ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/regen-66570f7b588c89f6)
[INFO] [stderr]    Doc-tests regen
[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 7 tests
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - Generator::new (line 175) ... ok
[INFO] [stdout] test src/lib.rs - Generator::append_next (line 218) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - Generator::new_with_options (line 188) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db855e38aa5f6e096ca89570bede1c164b16b8334356380f25a7489ba72376f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db855e38aa5f6e096ca89570bede1c164b16b8334356380f25a7489ba72376f9", kill_on_drop: false }`
[INFO] [stdout] db855e38aa5f6e096ca89570bede1c164b16b8334356380f25a7489ba72376f9