[INFO] cloning repository https://github.com/mvolkmann/rust-parallel-options
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mvolkmann/rust-parallel-options" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvolkmann%2Frust-parallel-options", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvolkmann%2Frust-parallel-options'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cecda08153819f429aa99bab9e87dc3a0abebd1
[INFO] testing mvolkmann/rust-parallel-options against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvolkmann%2Frust-parallel-options" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mvolkmann/rust-parallel-options on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mvolkmann/rust-parallel-options
[INFO] finished tweaking git repo https://github.com/mvolkmann/rust-parallel-options
[INFO] tweaked toml for git repo https://github.com/mvolkmann/rust-parallel-options written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mvolkmann/rust-parallel-options already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e137ecff075ee8e13f66e7d11961db196e8d6020f1eb282e5e4fe81aac18436
[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" "1e137ecff075ee8e13f66e7d11961db196e8d6020f1eb282e5e4fe81aac18436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e137ecff075ee8e13f66e7d11961db196e8d6020f1eb282e5e4fe81aac18436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e137ecff075ee8e13f66e7d11961db196e8d6020f1eb282e5e4fe81aac18436", kill_on_drop: false }`
[INFO] [stdout] 1e137ecff075ee8e13f66e7d11961db196e8d6020f1eb282e5e4fe81aac18436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] f2cc171d3ea5f0d23489342ba17e84fd7daa0d6b9109ab1b34f4f08f6277c15d
[INFO] running `Command { std: "docker" "start" "-a" "f2cc171d3ea5f0d23489342ba17e84fd7daa0d6b9109ab1b34f4f08f6277c15d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.12
[INFO] [stderr]    Compiling async-lock v2.3.0
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling futures-channel v0.3.12
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling rust-parallel-options v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.35s
[INFO] running `Command { std: "docker" "inspect" "f2cc171d3ea5f0d23489342ba17e84fd7daa0d6b9109ab1b34f4f08f6277c15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2cc171d3ea5f0d23489342ba17e84fd7daa0d6b9109ab1b34f4f08f6277c15d", kill_on_drop: false }`
[INFO] [stdout] f2cc171d3ea5f0d23489342ba17e84fd7daa0d6b9109ab1b34f4f08f6277c15d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f55281165764c8804e6d38615b2f1c98e28b88c46cc84650428e3bc2055eb38b
[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" "f55281165764c8804e6d38615b2f1c98e28b88c46cc84650428e3bc2055eb38b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-parallel-options v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "f55281165764c8804e6d38615b2f1c98e28b88c46cc84650428e3bc2055eb38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55281165764c8804e6d38615b2f1c98e28b88c46cc84650428e3bc2055eb38b", kill_on_drop: false }`
[INFO] [stdout] f55281165764c8804e6d38615b2f1c98e28b88c46cc84650428e3bc2055eb38b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32019fb4ad6725b4fdefe93178d13faccaac704925b63777a0279f761ca23fe6
[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" "32019fb4ad6725b4fdefe93178d13faccaac704925b63777a0279f761ca23fe6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_parallel_options-3554f7760a410ff3)
[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" "32019fb4ad6725b4fdefe93178d13faccaac704925b63777a0279f761ca23fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32019fb4ad6725b4fdefe93178d13faccaac704925b63777a0279f761ca23fe6", kill_on_drop: false }`
[INFO] [stdout] 32019fb4ad6725b4fdefe93178d13faccaac704925b63777a0279f761ca23fe6