[INFO] fetching crate hello_extern 0.1.1...
[INFO] testing hello_extern-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hello_extern 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hello_extern 0.1.1 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 hello_extern 0.1.1
[INFO] finished tweaking crates.io crate hello_extern 0.1.1
[INFO] tweaked toml for crates.io crate hello_extern 0.1.1 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 543913a51c8b72e95135d9ec26e2b137e8f9ae9ecc180c6479bfd6986e444093
[INFO] running `Command { std: "docker" "start" "-a" "543913a51c8b72e95135d9ec26e2b137e8f9ae9ecc180c6479bfd6986e444093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "543913a51c8b72e95135d9ec26e2b137e8f9ae9ecc180c6479bfd6986e444093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "543913a51c8b72e95135d9ec26e2b137e8f9ae9ecc180c6479bfd6986e444093", kill_on_drop: false }`
[INFO] [stdout] 543913a51c8b72e95135d9ec26e2b137e8f9ae9ecc180c6479bfd6986e444093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdb1cbe5b66513c1ccc847edcf110f3a0993c774dbbf8c543cc07e9fe961cef4
[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" "bdb1cbe5b66513c1ccc847edcf110f3a0993c774dbbf8c543cc07e9fe961cef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_extern v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "bdb1cbe5b66513c1ccc847edcf110f3a0993c774dbbf8c543cc07e9fe961cef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb1cbe5b66513c1ccc847edcf110f3a0993c774dbbf8c543cc07e9fe961cef4", kill_on_drop: false }`
[INFO] [stdout] bdb1cbe5b66513c1ccc847edcf110f3a0993c774dbbf8c543cc07e9fe961cef4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] be6dae0be2970d7635c54d2453fe309952619f903a1bb1ecf00dde6684fc57a8
[INFO] running `Command { std: "docker" "start" "-a" "be6dae0be2970d7635c54d2453fe309952619f903a1bb1ecf00dde6684fc57a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_extern v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "be6dae0be2970d7635c54d2453fe309952619f903a1bb1ecf00dde6684fc57a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6dae0be2970d7635c54d2453fe309952619f903a1bb1ecf00dde6684fc57a8", kill_on_drop: false }`
[INFO] [stdout] be6dae0be2970d7635c54d2453fe309952619f903a1bb1ecf00dde6684fc57a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 0b0c01ff460cf0ed2b59af1c8553f7c3a978c1eccd3d5292b73cc4a3538c8f33
[INFO] running `Command { std: "docker" "start" "-a" "0b0c01ff460cf0ed2b59af1c8553f7c3a978c1eccd3d5292b73cc4a3538c8f33", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_extern-464d5b3ed0b2a01e
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/u_hello-3c4cbef69d266144
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works_at_uint ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello_extern
[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" "0b0c01ff460cf0ed2b59af1c8553f7c3a978c1eccd3d5292b73cc4a3538c8f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0c01ff460cf0ed2b59af1c8553f7c3a978c1eccd3d5292b73cc4a3538c8f33", kill_on_drop: false }`
[INFO] [stdout] 0b0c01ff460cf0ed2b59af1c8553f7c3a978c1eccd3d5292b73cc4a3538c8f33