[INFO] fetching crate test-io-dev 0.1.0...
[INFO] testing test-io-dev-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate test-io-dev 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate test-io-dev 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-io-dev 0.1.0
[INFO] finished tweaking crates.io crate test-io-dev 0.1.0
[INFO] tweaked toml for crates.io crate test-io-dev 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 5ab9c0f9bdcf9532b16e8fc7eb2980bd39c32161c039871dd6eba0983828f5eb
[INFO] running `Command { std: "docker" "start" "-a" "5ab9c0f9bdcf9532b16e8fc7eb2980bd39c32161c039871dd6eba0983828f5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ab9c0f9bdcf9532b16e8fc7eb2980bd39c32161c039871dd6eba0983828f5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab9c0f9bdcf9532b16e8fc7eb2980bd39c32161c039871dd6eba0983828f5eb", kill_on_drop: false }`
[INFO] [stdout] 5ab9c0f9bdcf9532b16e8fc7eb2980bd39c32161c039871dd6eba0983828f5eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 232b4b10a39ae2c027ae20957501b422fe144afdece51aa4afaf20df4b1dc698
[INFO] running `Command { std: "docker" "start" "-a" "232b4b10a39ae2c027ae20957501b422fe144afdece51aa4afaf20df4b1dc698", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-io-dev v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "232b4b10a39ae2c027ae20957501b422fe144afdece51aa4afaf20df4b1dc698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232b4b10a39ae2c027ae20957501b422fe144afdece51aa4afaf20df4b1dc698", kill_on_drop: false }`
[INFO] [stdout] 232b4b10a39ae2c027ae20957501b422fe144afdece51aa4afaf20df4b1dc698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 375604e48e440216d3e43ded5ea7afabf789404de0f87634d98cd65e7290c406
[INFO] running `Command { std: "docker" "start" "-a" "375604e48e440216d3e43ded5ea7afabf789404de0f87634d98cd65e7290c406", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-io-dev v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/test_io_dev-3e5122e6a93105e7)
[INFO] running `Command { std: "docker" "inspect" "375604e48e440216d3e43ded5ea7afabf789404de0f87634d98cd65e7290c406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375604e48e440216d3e43ded5ea7afabf789404de0f87634d98cd65e7290c406", kill_on_drop: false }`
[INFO] [stdout] 375604e48e440216d3e43ded5ea7afabf789404de0f87634d98cd65e7290c406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 6cb79721a62eb8d99559d76523345ade2344cd7b7a909160708a8985f4d85fdf
[INFO] running `Command { std: "docker" "start" "-a" "6cb79721a62eb8d99559d76523345ade2344cd7b7a909160708a8985f4d85fdf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/test_io_dev-3e5122e6a93105e7)
[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" "6cb79721a62eb8d99559d76523345ade2344cd7b7a909160708a8985f4d85fdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb79721a62eb8d99559d76523345ade2344cd7b7a909160708a8985f4d85fdf", kill_on_drop: false }`
[INFO] [stdout] 6cb79721a62eb8d99559d76523345ade2344cd7b7a909160708a8985f4d85fdf