[INFO] fetching crate abackus 0.2.2...
[INFO] testing abackus-0.2.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate abackus 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate abackus 0.2.2 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 abackus 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate abackus 0.2.2
[INFO] tweaked toml for crates.io crate abackus 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate abackus 0.2.2 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 33fa34f7aa24ce59c65d26141eca4f23ecb3571ada2d0f2dd1b6cc85a7311054
[INFO] running `Command { std: "docker" "start" "-a" "33fa34f7aa24ce59c65d26141eca4f23ecb3571ada2d0f2dd1b6cc85a7311054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33fa34f7aa24ce59c65d26141eca4f23ecb3571ada2d0f2dd1b6cc85a7311054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fa34f7aa24ce59c65d26141eca4f23ecb3571ada2d0f2dd1b6cc85a7311054", kill_on_drop: false }`
[INFO] [stdout] 33fa34f7aa24ce59c65d26141eca4f23ecb3571ada2d0f2dd1b6cc85a7311054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf5a0d5428ef9eeee4aba8206eeaaeabb0a74cd8e852b2726df7620ec8a6ad8
[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" "ecf5a0d5428ef9eeee4aba8206eeaaeabb0a74cd8e852b2726df7620ec8a6ad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling earlgrey v0.3.0
[INFO] [stderr]    Compiling lexers v0.1.2
[INFO] [stderr]    Compiling abackus v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "ecf5a0d5428ef9eeee4aba8206eeaaeabb0a74cd8e852b2726df7620ec8a6ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf5a0d5428ef9eeee4aba8206eeaaeabb0a74cd8e852b2726df7620ec8a6ad8", kill_on_drop: false }`
[INFO] [stdout] ecf5a0d5428ef9eeee4aba8206eeaaeabb0a74cd8e852b2726df7620ec8a6ad8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cb5eac480478e3741de8e8e0a9ce8f681064e4b849d12a9174f309bb332500b
[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" "4cb5eac480478e3741de8e8e0a9ce8f681064e4b849d12a9174f309bb332500b", kill_on_drop: false }`
[INFO] [stderr]    Compiling abackus v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "4cb5eac480478e3741de8e8e0a9ce8f681064e4b849d12a9174f309bb332500b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb5eac480478e3741de8e8e0a9ce8f681064e4b849d12a9174f309bb332500b", kill_on_drop: false }`
[INFO] [stdout] 4cb5eac480478e3741de8e8e0a9ce8f681064e4b849d12a9174f309bb332500b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 0710da590ac70e39dcfe1c02d726031a31054e0de7054c1ea27e6715839d02b2
[INFO] running `Command { std: "docker" "start" "-a" "0710da590ac70e39dcfe1c02d726031a31054e0de7054c1ea27e6715839d02b2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/abackus-3793bee648993fce
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test ebnf_test::build_ebnf_grammar ... ok
[INFO] [stdout] test ebnf_test::grouping ... ok
[INFO] [stdout] test ebnf_test::minimal_parser ... ok
[INFO] [stderr]    Doc-tests abackus
[INFO] [stdout] test ebnf_test::plug_terminal ... ok
[INFO] [stdout] test ebnf_test::grouping_tagged ... ok
[INFO] [stdout] test ebnf_test::repetition_tagged ... ok
[INFO] [stdout] test ebnf_test::repetition ... ok
[INFO] [stdout] test ebnf_test::arith_parser ... ok
[INFO] [stdout] test ebnf_test::option ... ok
[INFO] [stdout] test ebnf_test::option_tagged ... ok
[INFO] [stdout] test ebnf_test::mixed ... ok
[INFO] [stdout] test ebnf_test::mixed_tagged ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "0710da590ac70e39dcfe1c02d726031a31054e0de7054c1ea27e6715839d02b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0710da590ac70e39dcfe1c02d726031a31054e0de7054c1ea27e6715839d02b2", kill_on_drop: false }`
[INFO] [stdout] 0710da590ac70e39dcfe1c02d726031a31054e0de7054c1ea27e6715839d02b2