[INFO] fetching crate yuyu_core 0.2.0...
[INFO] testing yuyu_core-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate yuyu_core 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate yuyu_core 0.2.0 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 yuyu_core 0.2.0
[INFO] finished tweaking crates.io crate yuyu_core 0.2.0
[INFO] tweaked toml for crates.io crate yuyu_core 0.2.0 written to /workspace/builds/worker-3/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 7b00aefd54c9e306d616c72d26888859736c3a7c3ae18f495bebf7b15972fb1b
[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" "7b00aefd54c9e306d616c72d26888859736c3a7c3ae18f495bebf7b15972fb1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b00aefd54c9e306d616c72d26888859736c3a7c3ae18f495bebf7b15972fb1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b00aefd54c9e306d616c72d26888859736c3a7c3ae18f495bebf7b15972fb1b", kill_on_drop: false }`
[INFO] [stdout] 7b00aefd54c9e306d616c72d26888859736c3a7c3ae18f495bebf7b15972fb1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] c4130a74cf15f3beb5f706a2ba52492e589eb9d9044d1bcf67ed0ffb5c806f50
[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" "c4130a74cf15f3beb5f706a2ba52492e589eb9d9044d1bcf67ed0ffb5c806f50", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling serde_ignored v0.1.2
[INFO] [stderr]    Compiling publicsuffix v1.5.6
[INFO] [stderr]    Compiling cookie_store v0.12.0
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling trust-dns-proto v0.20.3
[INFO] [stderr]    Compiling async-compression v0.3.8
[INFO] [stderr]    Compiling h2 v0.3.4
[INFO] [stderr]    Compiling nipper v0.1.9
[INFO] [stderr]    Compiling trust-dns-resolver v0.20.3
[INFO] [stderr]    Compiling hyper v0.14.12
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.4
[INFO] [stderr]    Compiling yuyu_core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "c4130a74cf15f3beb5f706a2ba52492e589eb9d9044d1bcf67ed0ffb5c806f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4130a74cf15f3beb5f706a2ba52492e589eb9d9044d1bcf67ed0ffb5c806f50", kill_on_drop: false }`
[INFO] [stdout] c4130a74cf15f3beb5f706a2ba52492e589eb9d9044d1bcf67ed0ffb5c806f50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] afb61911ac7d9b9ccc4766f261c950c2d803e889974de218343a43447414ba5e
[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" "afb61911ac7d9b9ccc4766f261c950c2d803e889974de218343a43447414ba5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling yuyu_core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "afb61911ac7d9b9ccc4766f261c950c2d803e889974de218343a43447414ba5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb61911ac7d9b9ccc4766f261c950c2d803e889974de218343a43447414ba5e", kill_on_drop: false }`
[INFO] [stdout] afb61911ac7d9b9ccc4766f261c950c2d803e889974de218343a43447414ba5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 91ac0472565c2e08f75e7efec335a768fc96c21ccc712f4b33fa1361de6baf9a
[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" "91ac0472565c2e08f75e7efec335a768fc96c21ccc712f4b33fa1361de6baf9a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yuyu_core-46b345752bc6625b)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests yuyu_core
[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] [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" "91ac0472565c2e08f75e7efec335a768fc96c21ccc712f4b33fa1361de6baf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ac0472565c2e08f75e7efec335a768fc96c21ccc712f4b33fa1361de6baf9a", kill_on_drop: false }`
[INFO] [stdout] 91ac0472565c2e08f75e7efec335a768fc96c21ccc712f4b33fa1361de6baf9a