[INFO] fetching crate cargo-xtask 0.1.0...
[INFO] testing cargo-xtask-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate cargo-xtask 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-xtask 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-xtask 0.1.0
[INFO] finished tweaking crates.io crate cargo-xtask 0.1.0
[INFO] tweaked toml for crates.io crate cargo-xtask 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-xtask 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 860abd788c0ae6e4549ea385d8d56a8fbd05423b45a0e4453f22dabc89cb193d
[INFO] running `Command { std: "docker" "start" "-a" "860abd788c0ae6e4549ea385d8d56a8fbd05423b45a0e4453f22dabc89cb193d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "860abd788c0ae6e4549ea385d8d56a8fbd05423b45a0e4453f22dabc89cb193d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860abd788c0ae6e4549ea385d8d56a8fbd05423b45a0e4453f22dabc89cb193d", kill_on_drop: false }`
[INFO] [stdout] 860abd788c0ae6e4549ea385d8d56a8fbd05423b45a0e4453f22dabc89cb193d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] d1a7c4b146ccd3c5de4be1f106130158cf7032fbfa6b8bbb43796c4f8a950cb3
[INFO] running `Command { std: "docker" "start" "-a" "d1a7c4b146ccd3c5de4be1f106130158cf7032fbfa6b8bbb43796c4f8a950cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-xtask v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "d1a7c4b146ccd3c5de4be1f106130158cf7032fbfa6b8bbb43796c4f8a950cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a7c4b146ccd3c5de4be1f106130158cf7032fbfa6b8bbb43796c4f8a950cb3", kill_on_drop: false }`
[INFO] [stdout] d1a7c4b146ccd3c5de4be1f106130158cf7032fbfa6b8bbb43796c4f8a950cb3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21ec729d586efed7b31023c22366f529a6bcaeb2d24db40bc67aeebc40cf571b
[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" "21ec729d586efed7b31023c22366f529a6bcaeb2d24db40bc67aeebc40cf571b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-xtask v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "21ec729d586efed7b31023c22366f529a6bcaeb2d24db40bc67aeebc40cf571b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ec729d586efed7b31023c22366f529a6bcaeb2d24db40bc67aeebc40cf571b", kill_on_drop: false }`
[INFO] [stdout] 21ec729d586efed7b31023c22366f529a6bcaeb2d24db40bc67aeebc40cf571b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dae30c4ef90257ee1b41cb95a00b8c8fbfcc38d5e0b094651a7d7cac805783ed
[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" "dae30c4ef90257ee1b41cb95a00b8c8fbfcc38d5e0b094651a7d7cac805783ed", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_xtask-675dd124562b888a)
[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" "dae30c4ef90257ee1b41cb95a00b8c8fbfcc38d5e0b094651a7d7cac805783ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae30c4ef90257ee1b41cb95a00b8c8fbfcc38d5e0b094651a7d7cac805783ed", kill_on_drop: false }`
[INFO] [stdout] dae30c4ef90257ee1b41cb95a00b8c8fbfcc38d5e0b094651a7d7cac805783ed