[INFO] fetching crate deregex 0.1.0...
[INFO] testing deregex-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate deregex 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate deregex 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-8/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa50500a6f0f73dfa5019174c9aec67cc681de138cbf8c0005f5f18f72bd0386
[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" "fa50500a6f0f73dfa5019174c9aec67cc681de138cbf8c0005f5f18f72bd0386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa50500a6f0f73dfa5019174c9aec67cc681de138cbf8c0005f5f18f72bd0386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa50500a6f0f73dfa5019174c9aec67cc681de138cbf8c0005f5f18f72bd0386", kill_on_drop: false }`
[INFO] [stdout] fa50500a6f0f73dfa5019174c9aec67cc681de138cbf8c0005f5f18f72bd0386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 089ffcebbbf7186cd068c2b02267652a5c7e7f64d8a08630ac83311fd6f2b8b3
[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" "089ffcebbbf7186cd068c2b02267652a5c7e7f64d8a08630ac83311fd6f2b8b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling deregex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "089ffcebbbf7186cd068c2b02267652a5c7e7f64d8a08630ac83311fd6f2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089ffcebbbf7186cd068c2b02267652a5c7e7f64d8a08630ac83311fd6f2b8b3", kill_on_drop: false }`
[INFO] [stdout] 089ffcebbbf7186cd068c2b02267652a5c7e7f64d8a08630ac83311fd6f2b8b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7677f840477ea0184bd3cc3fe0e9c08e6cfb849acbd92ae4004f17ef2aeff076
[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" "7677f840477ea0184bd3cc3fe0e9c08e6cfb849acbd92ae4004f17ef2aeff076", kill_on_drop: false }`
[INFO] [stderr]    Compiling deregex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "7677f840477ea0184bd3cc3fe0e9c08e6cfb849acbd92ae4004f17ef2aeff076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7677f840477ea0184bd3cc3fe0e9c08e6cfb849acbd92ae4004f17ef2aeff076", kill_on_drop: false }`
[INFO] [stdout] 7677f840477ea0184bd3cc3fe0e9c08e6cfb849acbd92ae4004f17ef2aeff076
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 541b7bd64d2b7f72e128e9ab2578b798c10d8a95a378784d1257ec556eeae2f4
[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" "541b7bd64d2b7f72e128e9ab2578b798c10d8a95a378784d1257ec556eeae2f4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/deregex-e3a0c3c2118d93d9
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::teset_string_with_consecutive_question_symbols ... ok
[INFO] [stdout] test tests::test_invalid_use_of_question_mark ... ok
[INFO] [stdout] test tests::test_string_with_multiple_bar ... ok
[INFO] [stdout] test tests::test_string_with_multiple_question_symbols ... ok
[INFO] [stdout] test tests::test_string_with_no_regex_symbols ... ok
[INFO] [stdout] test tests::test_string_with_one_bar ... ok
[INFO] [stdout] test tests::test_string_with_one_question_symbol ... 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; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "541b7bd64d2b7f72e128e9ab2578b798c10d8a95a378784d1257ec556eeae2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541b7bd64d2b7f72e128e9ab2578b798c10d8a95a378784d1257ec556eeae2f4", kill_on_drop: false }`
[INFO] [stdout] 541b7bd64d2b7f72e128e9ab2578b798c10d8a95a378784d1257ec556eeae2f4