[INFO] fetching crate serde-value 0.7.0...
[INFO] testing serde-value-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate serde-value 0.7.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate serde-value 0.7.0 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 serde-value 0.7.0
[INFO] finished tweaking crates.io crate serde-value 0.7.0
[INFO] tweaked toml for crates.io crate serde-value 0.7.0 written to /workspace/builds/worker-112/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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] fef4d3fe0567fa9c49d5f4b0efe0a071a950c70a500858b176043a143f91775f
[INFO] running `Command { std: "docker" "start" "-a" "fef4d3fe0567fa9c49d5f4b0efe0a071a950c70a500858b176043a143f91775f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fef4d3fe0567fa9c49d5f4b0efe0a071a950c70a500858b176043a143f91775f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef4d3fe0567fa9c49d5f4b0efe0a071a950c70a500858b176043a143f91775f", kill_on_drop: false }`
[INFO] [stdout] fef4d3fe0567fa9c49d5f4b0efe0a071a950c70a500858b176043a143f91775f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] 3b4335b40cce8b73fca8c52878e512c3c8b7e35fbfb5c7db04c113af8ce17c95
[INFO] running `Command { std: "docker" "start" "-a" "3b4335b40cce8b73fca8c52878e512c3c8b7e35fbfb5c7db04c113af8ce17c95", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ordered-float v2.8.0
[INFO] [stderr]    Compiling serde-value v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `Command { std: "docker" "inspect" "3b4335b40cce8b73fca8c52878e512c3c8b7e35fbfb5c7db04c113af8ce17c95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4335b40cce8b73fca8c52878e512c3c8b7e35fbfb5c7db04c113af8ce17c95", kill_on_drop: false }`
[INFO] [stdout] 3b4335b40cce8b73fca8c52878e512c3c8b7e35fbfb5c7db04c113af8ce17c95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] 1c2b944e8631dc3188f5eeada4deeeaa3400bce952c714ef523a9de1559042e3
[INFO] running `Command { std: "docker" "start" "-a" "1c2b944e8631dc3188f5eeada4deeeaa3400bce952c714ef523a9de1559042e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde-value v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `Command { std: "docker" "inspect" "1c2b944e8631dc3188f5eeada4deeeaa3400bce952c714ef523a9de1559042e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2b944e8631dc3188f5eeada4deeeaa3400bce952c714ef523a9de1559042e3", kill_on_drop: false }`
[INFO] [stdout] 1c2b944e8631dc3188f5eeada4deeeaa3400bce952c714ef523a9de1559042e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] 529a5deda4de2db15a984427885e6486f1cbd840a5a9df57836994ddfa22cb4d
[INFO] running `Command { std: "docker" "start" "-a" "529a5deda4de2db15a984427885e6486f1cbd840a5a9df57836994ddfa22cb4d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_value-0e3222bbaada4954)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test de_smoke_test ... ok
[INFO] [stdout] test deserialize_into_enum ... ok
[INFO] [stdout] test deserialize_inside_deserialize_impl ... ok
[INFO] [stdout] test deserialize_newtype ... ok
[INFO] [stdout] test deserialize_newtype2 ... ok
[INFO] [stdout] test serialize_from_enum ... ok
[INFO] [stdout] test ser_smoke_test ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde-value
[INFO] [stdout] test result: ok. 7 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" "529a5deda4de2db15a984427885e6486f1cbd840a5a9df57836994ddfa22cb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "529a5deda4de2db15a984427885e6486f1cbd840a5a9df57836994ddfa22cb4d", kill_on_drop: false }`
[INFO] [stdout] 529a5deda4de2db15a984427885e6486f1cbd840a5a9df57836994ddfa22cb4d