[INFO] crate regen 0.1.0 is already in cache
[INFO] testing regen-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate regen 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate regen 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] crate crates.io crate regen 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b52ad291343bdf0cfecb6e5e99dbb7b01c28b719c48dbc32fe2a10e1c6ac3f93
[INFO] running `Command { std: "docker" "start" "-a" "b52ad291343bdf0cfecb6e5e99dbb7b01c28b719c48dbc32fe2a10e1c6ac3f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b52ad291343bdf0cfecb6e5e99dbb7b01c28b719c48dbc32fe2a10e1c6ac3f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52ad291343bdf0cfecb6e5e99dbb7b01c28b719c48dbc32fe2a10e1c6ac3f93", kill_on_drop: false }`
[INFO] [stdout] b52ad291343bdf0cfecb6e5e99dbb7b01c28b719c48dbc32fe2a10e1c6ac3f93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 800dcdbde2984b7ba7956ac403846079353911fce0c2f5a3a3f60ca1d30f375a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "800dcdbde2984b7ba7956ac403846079353911fce0c2f5a3a3f60ca1d30f375a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling regen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "800dcdbde2984b7ba7956ac403846079353911fce0c2f5a3a3f60ca1d30f375a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "800dcdbde2984b7ba7956ac403846079353911fce0c2f5a3a3f60ca1d30f375a", kill_on_drop: false }`
[INFO] [stdout] 800dcdbde2984b7ba7956ac403846079353911fce0c2f5a3a3f60ca1d30f375a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c9529036ba6262ba0e2388029b3d3d211e3cebcd0ffb47db3af6a3935960174
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c9529036ba6262ba0e2388029b3d3d211e3cebcd0ffb47db3af6a3935960174", kill_on_drop: false }`
[INFO] [stderr]    Compiling regen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "7c9529036ba6262ba0e2388029b3d3d211e3cebcd0ffb47db3af6a3935960174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c9529036ba6262ba0e2388029b3d3d211e3cebcd0ffb47db3af6a3935960174", kill_on_drop: false }`
[INFO] [stdout] 7c9529036ba6262ba0e2388029b3d3d211e3cebcd0ffb47db3af6a3935960174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79dba0cf5c709408944ee085da7f12c109233a69aaa29e160b505089e9dc2600
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79dba0cf5c709408944ee085da7f12c109233a69aaa29e160b505089e9dc2600", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/regen-7eb755959f4ac0d7
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stdout] test appending_iterators::tests::alternation_reports_alt_element_counts ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_resets ... 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_class_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::char_literal_returns_element_count_in_chars ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_reports_min_elements_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::char_literal_returns_min_elements_in_chars ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_byte_class ... ok
[INFO] [stdout] test appending_iterators::tests::byte_class_reports_element_count_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_byte_class ... ok
[INFO] [stdout] test appending_iterators::tests::byte_class_resets ... ok
[INFO] [stdout] test appending_iterators::tests::empty_alternation_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_reports_element_count_of_one ... ok
[INFO] [stdout] test appending_iterators::tests::byte_literal_returns_min_elements_in_bytes ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_alternation ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_concatenation ... ok
[INFO] [stdout] test appending_iterators::tests::empty_byte_class_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::empty_char_class_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::empty_repeat_returns_empty_string ... ok
[INFO] [stdout] test appending_iterators::tests::empty_concatenation_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::literal_resets ... ok
[INFO] [stdout] test appending_iterators::tests::literal_returns_one_value ... ok
[INFO] [stdout] test appending_iterators::tests::char_class_resets ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_reports_total_element_count ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_reports_alt_min_elements ... ok
[INFO] [stdout] test appending_iterators::tests::alternation_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_reports_total_min_elements ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_alternation ... ok
[INFO] [stdout] test tests::alternation ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_respects_max_element_hint ... ok
[INFO] [stdout] test tests::concat ... ok
[INFO] [stdout] test tests::empty_returns_nothing ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_resets ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_reports_element_count ... ok
[INFO] [stdout] test appending_iterators::tests::concatenation_resets ... ok
[INFO] [stdout] test tests::repetition_range ... ok
[INFO] [stdout] test tests::max_length_with_fixed_parts ... ok
[INFO] [stdout] test tests::byte_dot_all ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_uses_all_values ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_with_zero_reports_zero_min_elements ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_reports_min_elements ... ok
[INFO] [stdout] test tests::max_length_with_alternation_branches_of_unequal_length ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_alternation_respects_max_element_hint ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_char_class ... ok
[INFO] [stdout] test appending_iterators::tests::repeat_byte_class ... ok
[INFO] [stdout] test tests::repetition_zero_or_one ... ok
[INFO] [stdout] test tests::repetition_range_exactly ... ok
[INFO] [stdout] test tests::literal ... ok
[INFO] [stdout] test tests::unfinished_alternation_branch_is_ignored ... ok
[INFO] [stdout] test tests::max_length ... ok
[INFO] [stdout] test tests::class ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/regen-34b979eb9da65702
[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]    Doc-tests regen
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Generator::new_with_options (line 188) ... 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 - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - Generator::new (line 175) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79dba0cf5c709408944ee085da7f12c109233a69aaa29e160b505089e9dc2600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dba0cf5c709408944ee085da7f12c109233a69aaa29e160b505089e9dc2600", kill_on_drop: false }`
[INFO] [stdout] 79dba0cf5c709408944ee085da7f12c109233a69aaa29e160b505089e9dc2600