[INFO] fetching crate cassette 0.0.0...
[INFO] testing cassette-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cassette 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cassette 0.0.0 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 cassette 0.0.0
[INFO] finished tweaking crates.io crate cassette 0.0.0
[INFO] tweaked toml for crates.io crate cassette 0.0.0 written to /workspace/builds/worker-1/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 124505ab8b6c1313b9acb91db916d49eba9cd97e569c0f3f28dd4afd47635845
[INFO] running `Command { std: "docker" "start" "-a" "124505ab8b6c1313b9acb91db916d49eba9cd97e569c0f3f28dd4afd47635845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124505ab8b6c1313b9acb91db916d49eba9cd97e569c0f3f28dd4afd47635845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124505ab8b6c1313b9acb91db916d49eba9cd97e569c0f3f28dd4afd47635845", kill_on_drop: false }`
[INFO] [stdout] 124505ab8b6c1313b9acb91db916d49eba9cd97e569c0f3f28dd4afd47635845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2785fdeb65c1e420ef358d1acf10dfb933c03d6862eac348789dfa7915dd6f41
[INFO] running `Command { std: "docker" "start" "-a" "2785fdeb65c1e420ef358d1acf10dfb933c03d6862eac348789dfa7915dd6f41", kill_on_drop: false }`
[INFO] [stderr]    Compiling cassette v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "2785fdeb65c1e420ef358d1acf10dfb933c03d6862eac348789dfa7915dd6f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2785fdeb65c1e420ef358d1acf10dfb933c03d6862eac348789dfa7915dd6f41", kill_on_drop: false }`
[INFO] [stdout] 2785fdeb65c1e420ef358d1acf10dfb933c03d6862eac348789dfa7915dd6f41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 957a9d83688e8b28e9c87c8924b149576d72e2dc0bbb6a06e8cb132fa66dab3f
[INFO] running `Command { std: "docker" "start" "-a" "957a9d83688e8b28e9c87c8924b149576d72e2dc0bbb6a06e8cb132fa66dab3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cassette v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "957a9d83688e8b28e9c87c8924b149576d72e2dc0bbb6a06e8cb132fa66dab3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "957a9d83688e8b28e9c87c8924b149576d72e2dc0bbb6a06e8cb132fa66dab3f", kill_on_drop: false }`
[INFO] [stdout] 957a9d83688e8b28e9c87c8924b149576d72e2dc0bbb6a06e8cb132fa66dab3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] e6fac71867a9967651da5032844aad4070c995cdadc165991365c04d23fb2754
[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" "e6fac71867a9967651da5032844aad4070c995cdadc165991365c04d23fb2754", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cassette-bea84453fb0039a8
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests cassette
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "e6fac71867a9967651da5032844aad4070c995cdadc165991365c04d23fb2754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6fac71867a9967651da5032844aad4070c995cdadc165991365c04d23fb2754", kill_on_drop: false }`
[INFO] [stdout] e6fac71867a9967651da5032844aad4070c995cdadc165991365c04d23fb2754