[INFO] fetching crate tokio-scope 0.0.0...
[INFO] testing tokio-scope-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tokio-scope 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tokio-scope 0.0.0 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 crates.io crate tokio-scope 0.0.0
[INFO] finished tweaking crates.io crate tokio-scope 0.0.0
[INFO] tweaked toml for crates.io crate tokio-scope 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 71bd4b4710d1b993534bedde1d1fdfa338f06c4f80e4109a97a5fb86425c2c64
[INFO] running `Command { std: "docker" "start" "-a" "71bd4b4710d1b993534bedde1d1fdfa338f06c4f80e4109a97a5fb86425c2c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71bd4b4710d1b993534bedde1d1fdfa338f06c4f80e4109a97a5fb86425c2c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71bd4b4710d1b993534bedde1d1fdfa338f06c4f80e4109a97a5fb86425c2c64", kill_on_drop: false }`
[INFO] [stdout] 71bd4b4710d1b993534bedde1d1fdfa338f06c4f80e4109a97a5fb86425c2c64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 95600c73191fa4dcd70b121c8a1db2fe9ec2d4c28e7275c18da037f1a6ca631b
[INFO] running `Command { std: "docker" "start" "-a" "95600c73191fa4dcd70b121c8a1db2fe9ec2d4c28e7275c18da037f1a6ca631b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-scope v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "95600c73191fa4dcd70b121c8a1db2fe9ec2d4c28e7275c18da037f1a6ca631b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95600c73191fa4dcd70b121c8a1db2fe9ec2d4c28e7275c18da037f1a6ca631b", kill_on_drop: false }`
[INFO] [stdout] 95600c73191fa4dcd70b121c8a1db2fe9ec2d4c28e7275c18da037f1a6ca631b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8da2897667d3f8ec92223212a2e1fe76a49d346803be31361f7aa9a675aa413e
[INFO] running `Command { std: "docker" "start" "-a" "8da2897667d3f8ec92223212a2e1fe76a49d346803be31361f7aa9a675aa413e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-scope v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "8da2897667d3f8ec92223212a2e1fe76a49d346803be31361f7aa9a675aa413e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da2897667d3f8ec92223212a2e1fe76a49d346803be31361f7aa9a675aa413e", kill_on_drop: false }`
[INFO] [stdout] 8da2897667d3f8ec92223212a2e1fe76a49d346803be31361f7aa9a675aa413e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8325a5d4efcf2989142381a5c91f17a0aa451d4f9fd15dd0bac98112d68a08e5
[INFO] running `Command { std: "docker" "start" "-a" "8325a5d4efcf2989142381a5c91f17a0aa451d4f9fd15dd0bac98112d68a08e5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_scope-75221e3a571e50de)
[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] [stderr]    Doc-tests tokio-scope
[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" "8325a5d4efcf2989142381a5c91f17a0aa451d4f9fd15dd0bac98112d68a08e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8325a5d4efcf2989142381a5c91f17a0aa451d4f9fd15dd0bac98112d68a08e5", kill_on_drop: false }`
[INFO] [stdout] 8325a5d4efcf2989142381a5c91f17a0aa451d4f9fd15dd0bac98112d68a08e5