[INFO] fetching crate fastforward 0.5.1...
[INFO] testing fastforward-0.5.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fastforward 0.5.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fastforward 0.5.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fastforward 0.5.1
[INFO] finished tweaking crates.io crate fastforward 0.5.1
[INFO] tweaked toml for crates.io crate fastforward 0.5.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f57c714d1683ff5f30e4ee7d77da1e63ee178e409dd011ca20d3dbc5f262677e
[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" "f57c714d1683ff5f30e4ee7d77da1e63ee178e409dd011ca20d3dbc5f262677e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f57c714d1683ff5f30e4ee7d77da1e63ee178e409dd011ca20d3dbc5f262677e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57c714d1683ff5f30e4ee7d77da1e63ee178e409dd011ca20d3dbc5f262677e", kill_on_drop: false }`
[INFO] [stdout] f57c714d1683ff5f30e4ee7d77da1e63ee178e409dd011ca20d3dbc5f262677e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 7bbb23f60f76a001d36c619df3e5916f0d8402623ad546e8ebc6ebbad1235490
[INFO] running `Command { std: "docker" "start" "-a" "7bbb23f60f76a001d36c619df3e5916f0d8402623ad546e8ebc6ebbad1235490", kill_on_drop: false }`
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling flask v2.0.3
[INFO] [stderr]    Compiling fastforward v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `Command { std: "docker" "inspect" "7bbb23f60f76a001d36c619df3e5916f0d8402623ad546e8ebc6ebbad1235490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bbb23f60f76a001d36c619df3e5916f0d8402623ad546e8ebc6ebbad1235490", kill_on_drop: false }`
[INFO] [stdout] 7bbb23f60f76a001d36c619df3e5916f0d8402623ad546e8ebc6ebbad1235490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 9d72d9edc67179a28e935dac9b6ec90728a008b2e6c981c814d1f855bae75c86
[INFO] running `Command { std: "docker" "start" "-a" "9d72d9edc67179a28e935dac9b6ec90728a008b2e6c981c814d1f855bae75c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastforward v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Response`
[INFO] [stdout]   --> src/proxy/filters.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Response
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "9d72d9edc67179a28e935dac9b6ec90728a008b2e6c981c814d1f855bae75c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d72d9edc67179a28e935dac9b6ec90728a008b2e6c981c814d1f855bae75c86", kill_on_drop: false }`
[INFO] [stdout] 9d72d9edc67179a28e935dac9b6ec90728a008b2e6c981c814d1f855bae75c86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 085d989ebf8ffbc97dbeea0d0793659a504abfa633a8b593b2d307c9c4a2f5cb
[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" "085d989ebf8ffbc97dbeea0d0793659a504abfa633a8b593b2d307c9c4a2f5cb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Response`
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/proxy/filters.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         Response
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fastforward` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fastforward-93fe0e7b4340addc)
[INFO] [stderr]    Doc-tests fastforward
[INFO] [stdout] test proxy::filters::test_filter_frontend_request_headers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "085d989ebf8ffbc97dbeea0d0793659a504abfa633a8b593b2d307c9c4a2f5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085d989ebf8ffbc97dbeea0d0793659a504abfa633a8b593b2d307c9c4a2f5cb", kill_on_drop: false }`
[INFO] [stdout] 085d989ebf8ffbc97dbeea0d0793659a504abfa633a8b593b2d307c9c4a2f5cb