[INFO] fetching crate deregex 0.1.0...
[INFO] testing deregex-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate deregex 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate deregex 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate deregex 0.1.0
[INFO] finished tweaking crates.io crate deregex 0.1.0
[INFO] tweaked toml for crates.io crate deregex 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate deregex 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebeff843cc9b1a8aabdb5917ad7fdf1c2d553a87b8a8922eaddaf44620dd7ae9
[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" "ebeff843cc9b1a8aabdb5917ad7fdf1c2d553a87b8a8922eaddaf44620dd7ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebeff843cc9b1a8aabdb5917ad7fdf1c2d553a87b8a8922eaddaf44620dd7ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebeff843cc9b1a8aabdb5917ad7fdf1c2d553a87b8a8922eaddaf44620dd7ae9", kill_on_drop: false }`
[INFO] [stdout] ebeff843cc9b1a8aabdb5917ad7fdf1c2d553a87b8a8922eaddaf44620dd7ae9
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d5ae3ff757edb54a7665338b1b4c4addef8f073c7abfcac28771dd15d223821
[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" "9d5ae3ff757edb54a7665338b1b4c4addef8f073c7abfcac28771dd15d223821", kill_on_drop: false }`
[INFO] [stderr]    Compiling deregex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "9d5ae3ff757edb54a7665338b1b4c4addef8f073c7abfcac28771dd15d223821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5ae3ff757edb54a7665338b1b4c4addef8f073c7abfcac28771dd15d223821", kill_on_drop: false }`
[INFO] [stdout] 9d5ae3ff757edb54a7665338b1b4c4addef8f073c7abfcac28771dd15d223821
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5eb6558308a06af1f0bc0169a8c9e8ca0f781859e3e587ff3c7ff0f4943a08
[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" "9e5eb6558308a06af1f0bc0169a8c9e8ca0f781859e3e587ff3c7ff0f4943a08", kill_on_drop: false }`
[INFO] [stderr]    Compiling deregex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "9e5eb6558308a06af1f0bc0169a8c9e8ca0f781859e3e587ff3c7ff0f4943a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5eb6558308a06af1f0bc0169a8c9e8ca0f781859e3e587ff3c7ff0f4943a08", kill_on_drop: false }`
[INFO] [stdout] 9e5eb6558308a06af1f0bc0169a8c9e8ca0f781859e3e587ff3c7ff0f4943a08
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62e18e8800f7d73e5ebdbb0e669fa1477031c5d6cca1cdf28d4090601c6dc782
[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" "62e18e8800f7d73e5ebdbb0e669fa1477031c5d6cca1cdf28d4090601c6dc782", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/deregex-f972001cc6c15dee
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_invalid_use_of_question_mark ... ok
[INFO] [stdout] test tests::teset_string_with_consecutive_question_symbols ... ok
[INFO] [stdout] test tests::test_string_with_one_bar ... ok
[INFO] [stdout] test tests::test_string_with_multiple_question_symbols ... ok
[INFO] [stdout] test tests::test_string_with_multiple_bar ... ok
[INFO] [stdout] test tests::test_string_with_one_question_symbol ... ok
[INFO] [stdout] test tests::test_string_with_no_regex_symbols ... ok
[INFO] [stdout] test tests::test_with_question_marks_and_bars ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "62e18e8800f7d73e5ebdbb0e669fa1477031c5d6cca1cdf28d4090601c6dc782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62e18e8800f7d73e5ebdbb0e669fa1477031c5d6cca1cdf28d4090601c6dc782", kill_on_drop: false }`
[INFO] [stdout] 62e18e8800f7d73e5ebdbb0e669fa1477031c5d6cca1cdf28d4090601c6dc782