[INFO] fetching crate r-cache 0.3.0...
[INFO] testing r-cache-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate r-cache 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate r-cache 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r-cache 0.3.0
[INFO] finished tweaking crates.io crate r-cache 0.3.0
[INFO] tweaked toml for crates.io crate r-cache 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 254e82e9d8d13633471f097fe557f16ec0f67448d41bf12f1ba30b4ede784fde
[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" "254e82e9d8d13633471f097fe557f16ec0f67448d41bf12f1ba30b4ede784fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "254e82e9d8d13633471f097fe557f16ec0f67448d41bf12f1ba30b4ede784fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254e82e9d8d13633471f097fe557f16ec0f67448d41bf12f1ba30b4ede784fde", kill_on_drop: false }`
[INFO] [stdout] 254e82e9d8d13633471f097fe557f16ec0f67448d41bf12f1ba30b4ede784fde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98418e7e30fd4bc604c1825a7c4921573b388a74059a5d4c2af9670aadffb4a2
[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" "98418e7e30fd4bc604c1825a7c4921573b388a74059a5d4c2af9670aadffb4a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling r-cache v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.75s
[INFO] running `Command { std: "docker" "inspect" "98418e7e30fd4bc604c1825a7c4921573b388a74059a5d4c2af9670aadffb4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98418e7e30fd4bc604c1825a7c4921573b388a74059a5d4c2af9670aadffb4a2", kill_on_drop: false }`
[INFO] [stdout] 98418e7e30fd4bc604c1825a7c4921573b388a74059a5d4c2af9670aadffb4a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ef3017940706e9bab373904a65afc624616953fc4d396ae85f36d39f8daab6b
[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" "1ef3017940706e9bab373904a65afc624616953fc4d396ae85f36d39f8daab6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling r-cache v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "1ef3017940706e9bab373904a65afc624616953fc4d396ae85f36d39f8daab6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef3017940706e9bab373904a65afc624616953fc4d396ae85f36d39f8daab6b", kill_on_drop: false }`
[INFO] [stdout] 1ef3017940706e9bab373904a65afc624616953fc4d396ae85f36d39f8daab6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6bc31dd2c0e69850168baa43b749f0ed5f85897ab8535929567dc3aa358e5bc
[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" "e6bc31dd2c0e69850168baa43b749f0ed5f85897ab8535929567dc3aa358e5bc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/r_cache-340e465c7fe9af3f
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test item::tests::expired_when_duration_is_zero ... ok
[INFO] [stdout] test cache::tests::set_and_get_value_without_duration ... ok
[INFO] [stdout] test cache::tests::replace_existing_value ... ok
[INFO] [stdout] test item::tests::not_expired_when_duration_is_none ... ok
[INFO] [stdout] test cache::tests::set_and_get_value_with_duration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests r-cache
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e6bc31dd2c0e69850168baa43b749f0ed5f85897ab8535929567dc3aa358e5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6bc31dd2c0e69850168baa43b749f0ed5f85897ab8535929567dc3aa358e5bc", kill_on_drop: false }`
[INFO] [stdout] e6bc31dd2c0e69850168baa43b749f0ed5f85897ab8535929567dc3aa358e5bc