[INFO] fetching crate velcro_core 0.5.1...
[INFO] testing velcro_core-0.5.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate velcro_core 0.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate velcro_core 0.5.1 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 velcro_core 0.5.1
[INFO] finished tweaking crates.io crate velcro_core 0.5.1
[INFO] tweaked toml for crates.io crate velcro_core 0.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fe17df287ee1ba455a4ae09ee8b62f9591dd3f02279580f6f1fef719f08a138
[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" "8fe17df287ee1ba455a4ae09ee8b62f9591dd3f02279580f6f1fef719f08a138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fe17df287ee1ba455a4ae09ee8b62f9591dd3f02279580f6f1fef719f08a138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe17df287ee1ba455a4ae09ee8b62f9591dd3f02279580f6f1fef719f08a138", kill_on_drop: false }`
[INFO] [stdout] 8fe17df287ee1ba455a4ae09ee8b62f9591dd3f02279580f6f1fef719f08a138
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da2fd339100668eeec294d1d646cdd1e153d3e91edf0bc976ca15e562a0e3462
[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" "da2fd339100668eeec294d1d646cdd1e153d3e91edf0bc976ca15e562a0e3462", kill_on_drop: false }`
[INFO] [stderr]    Compiling velcro_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "da2fd339100668eeec294d1d646cdd1e153d3e91edf0bc976ca15e562a0e3462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2fd339100668eeec294d1d646cdd1e153d3e91edf0bc976ca15e562a0e3462", kill_on_drop: false }`
[INFO] [stdout] da2fd339100668eeec294d1d646cdd1e153d3e91edf0bc976ca15e562a0e3462
[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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73c2f0298b46479b972a4e9e4912f10ad49d10e5e3a7e401207cb91460ab21e3
[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" "73c2f0298b46479b972a4e9e4912f10ad49d10e5e3a7e401207cb91460ab21e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling velcro_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "73c2f0298b46479b972a4e9e4912f10ad49d10e5e3a7e401207cb91460ab21e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c2f0298b46479b972a4e9e4912f10ad49d10e5e3a7e401207cb91460ab21e3", kill_on_drop: false }`
[INFO] [stdout] 73c2f0298b46479b972a4e9e4912f10ad49d10e5e3a7e401207cb91460ab21e3
[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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc98b89fb6d642d5480f044dcf6fe405c333833ce1bab3a10e16c34a60d3faf5
[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" "bc98b89fb6d642d5480f044dcf6fe405c333833ce1bab3a10e16c34a60d3faf5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/velcro_core-580644400b18c48c
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test seq::tests::empty_input_is_simple ... ok
[INFO] [stdout] test seq::tests::parse_empty_input_as_empty_sequence ... ok
[INFO] [stdout] test value::tests::expression_without_spread_is_simple ... ok
[INFO] [stdout] test seq::tests::spread_input_is_not_simple ... ok
[INFO] [stdout] test value::tests::expression_with_spread_is_not_simple ... ok
[INFO] [stdout] test value::tests::spread_with_no_expression_is_error ... ok
[INFO] [stdout] test value::tests::parse_literal_as_one ... ok
[INFO] [stdout] test value::tests::parse_complex_expression_as_one ... ok
[INFO] [stdout] test seq::tests::parse_single_spread_expression_as_one_value_of_many ... ok
[INFO] [stdout] test value::tests::spread_complex_expression_as_many ... ok
[INFO] [stdout] test seq::tests::parse_single_expression_as_one_value_of_one ... ok
[INFO] [stdout] test seq::tests::non_spread_input_is_simple ... ok
[INFO] [stdout] test value::tests::parse_spread_simple_expression_as_many ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests velcro_core
[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] running `Command { std: "docker" "inspect" "bc98b89fb6d642d5480f044dcf6fe405c333833ce1bab3a10e16c34a60d3faf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc98b89fb6d642d5480f044dcf6fe405c333833ce1bab3a10e16c34a60d3faf5", kill_on_drop: false }`
[INFO] [stdout] bc98b89fb6d642d5480f044dcf6fe405c333833ce1bab3a10e16c34a60d3faf5