[INFO] fetching crate string_concat 0.0.1...
[INFO] testing string_concat-0.0.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate string_concat 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate string_concat 0.0.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string_concat 0.0.1
[INFO] finished tweaking crates.io crate string_concat 0.0.1
[INFO] tweaked toml for crates.io crate string_concat 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc8da1220f5ea72040db4911d55305b4698f60c1562e15e6678d0cea20e33eb1
[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" "dc8da1220f5ea72040db4911d55305b4698f60c1562e15e6678d0cea20e33eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc8da1220f5ea72040db4911d55305b4698f60c1562e15e6678d0cea20e33eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc8da1220f5ea72040db4911d55305b4698f60c1562e15e6678d0cea20e33eb1", kill_on_drop: false }`
[INFO] [stdout] dc8da1220f5ea72040db4911d55305b4698f60c1562e15e6678d0cea20e33eb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50e120a8edd8df6c3365d9abb402c28a2930105233d01067a19dc2d8836e86a9
[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" "50e120a8edd8df6c3365d9abb402c28a2930105233d01067a19dc2d8836e86a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_concat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "50e120a8edd8df6c3365d9abb402c28a2930105233d01067a19dc2d8836e86a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e120a8edd8df6c3365d9abb402c28a2930105233d01067a19dc2d8836e86a9", kill_on_drop: false }`
[INFO] [stdout] 50e120a8edd8df6c3365d9abb402c28a2930105233d01067a19dc2d8836e86a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 0fa15a77a0fd36beff087c7f381efe4326da5292ad7faf17b53e95fe9dceafa5
[INFO] running `Command { std: "docker" "start" "-a" "0fa15a77a0fd36beff087c7f381efe4326da5292ad7faf17b53e95fe9dceafa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_concat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "0fa15a77a0fd36beff087c7f381efe4326da5292ad7faf17b53e95fe9dceafa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa15a77a0fd36beff087c7f381efe4326da5292ad7faf17b53e95fe9dceafa5", kill_on_drop: false }`
[INFO] [stdout] 0fa15a77a0fd36beff087c7f381efe4326da5292ad7faf17b53e95fe9dceafa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e7c8e6bac8985c47802be8cd1735acc73adb5526487aa3639ca37fb1c40f8b5
[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" "7e7c8e6bac8985c47802be8cd1735acc73adb5526487aa3639ca37fb1c40f8b5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/string_concat-7d50d62e4a22d36d
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests string_concat
[INFO] [stdout] test tests::it_works_with_str ... ok
[INFO] [stdout] test tests::it_works_more_complicated ... ok
[INFO] [stdout] test tests::it_works_with_stringss ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "7e7c8e6bac8985c47802be8cd1735acc73adb5526487aa3639ca37fb1c40f8b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7c8e6bac8985c47802be8cd1735acc73adb5526487aa3639ca37fb1c40f8b5", kill_on_drop: false }`
[INFO] [stdout] 7e7c8e6bac8985c47802be8cd1735acc73adb5526487aa3639ca37fb1c40f8b5
