[INFO] fetching crate empty 0.0.4...
[INFO] testing empty-0.0.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate empty 0.0.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate empty 0.0.4 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 empty 0.0.4
[INFO] finished tweaking crates.io crate empty 0.0.4
[INFO] tweaked toml for crates.io crate empty 0.0.4 written to /workspace/builds/worker-0/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-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: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] a364b8e1ef2572ee2b90c0f1e6b90200fd3c65b349bb68235c6729605fb1f31b
[INFO] running `Command { std: "docker" "start" "-a" "a364b8e1ef2572ee2b90c0f1e6b90200fd3c65b349bb68235c6729605fb1f31b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a364b8e1ef2572ee2b90c0f1e6b90200fd3c65b349bb68235c6729605fb1f31b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a364b8e1ef2572ee2b90c0f1e6b90200fd3c65b349bb68235c6729605fb1f31b", kill_on_drop: false }`
[INFO] [stdout] a364b8e1ef2572ee2b90c0f1e6b90200fd3c65b349bb68235c6729605fb1f31b
[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: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] 5307c6a69f9e6662eb7666ad386f4f0d8a7cb676b4ad5e81705d9402e7371620
[INFO] running `Command { std: "docker" "start" "-a" "5307c6a69f9e6662eb7666ad386f4f0d8a7cb676b4ad5e81705d9402e7371620", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "5307c6a69f9e6662eb7666ad386f4f0d8a7cb676b4ad5e81705d9402e7371620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5307c6a69f9e6662eb7666ad386f4f0d8a7cb676b4ad5e81705d9402e7371620", kill_on_drop: false }`
[INFO] [stdout] 5307c6a69f9e6662eb7666ad386f4f0d8a7cb676b4ad5e81705d9402e7371620
[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: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] c1096b646a12fdb352b758fed339b76cccbc95d773ab5a10f4047be492f665df
[INFO] running `Command { std: "docker" "start" "-a" "c1096b646a12fdb352b758fed339b76cccbc95d773ab5a10f4047be492f665df", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/empty-1f8b78e1bb8fa616)
[INFO] running `Command { std: "docker" "inspect" "c1096b646a12fdb352b758fed339b76cccbc95d773ab5a10f4047be492f665df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1096b646a12fdb352b758fed339b76cccbc95d773ab5a10f4047be492f665df", kill_on_drop: false }`
[INFO] [stdout] c1096b646a12fdb352b758fed339b76cccbc95d773ab5a10f4047be492f665df
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5be9c3b3ad35735f2b24bb8c0767f37ef5b214e17b4a85a02c0faf8bffb78617
[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" "5be9c3b3ad35735f2b24bb8c0767f37ef5b214e17b4a85a02c0faf8bffb78617", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/empty-1f8b78e1bb8fa616)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] test test::it_works_iterator ... ok
[INFO] [stdout] test test::it_works_2 ... ok
[INFO] [stdout] test test::len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests empty
[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" "5be9c3b3ad35735f2b24bb8c0767f37ef5b214e17b4a85a02c0faf8bffb78617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be9c3b3ad35735f2b24bb8c0767f37ef5b214e17b4a85a02c0faf8bffb78617", kill_on_drop: false }`
[INFO] [stdout] 5be9c3b3ad35735f2b24bb8c0767f37ef5b214e17b4a85a02c0faf8bffb78617