[INFO] fetching crate serde_traitobject 0.2.7...
[INFO] checking serde_traitobject-0.2.7 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate serde_traitobject 0.2.7 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde_traitobject 0.2.7 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_traitobject 0.2.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_traitobject 0.2.7
[INFO] tweaked toml for crates.io crate serde_traitobject 0.2.7 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "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" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f7d88bf074952837ce237c203afd46fdc0aa7d0c4e4a3be44b3b2dca78552ef
[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" "2f7d88bf074952837ce237c203afd46fdc0aa7d0c4e4a3be44b3b2dca78552ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f7d88bf074952837ce237c203afd46fdc0aa7d0c4e4a3be44b3b2dca78552ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7d88bf074952837ce237c203afd46fdc0aa7d0c4e4a3be44b3b2dca78552ef", kill_on_drop: false }`
[INFO] [stdout] 2f7d88bf074952837ce237c203afd46fdc0aa7d0c4e4a3be44b3b2dca78552ef
[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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dae08f3ad35b5b512fbb226afb2ceac72763184faea1e4b29e0924b76bc79f82
[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" "dae08f3ad35b5b512fbb226afb2ceac72763184faea1e4b29e0924b76bc79f82", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.67
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]     Checking metatype v0.2.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.17
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_closure_derive v0.3.2
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling serde_closure v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking palaver v0.2.8
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking serde_traitobject v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.17
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.17
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.91s
[INFO] running `Command { std: "docker" "inspect" "dae08f3ad35b5b512fbb226afb2ceac72763184faea1e4b29e0924b76bc79f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae08f3ad35b5b512fbb226afb2ceac72763184faea1e4b29e0924b76bc79f82", kill_on_drop: false }`
[INFO] [stdout] dae08f3ad35b5b512fbb226afb2ceac72763184faea1e4b29e0924b76bc79f82