[INFO] fetching crate serde-json-core-fmt 0.1.1...
[INFO] checking serde-json-core-fmt-0.1.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate serde-json-core-fmt 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde-json-core-fmt 0.1.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking crates.io crate serde-json-core-fmt 0.1.1
[INFO] finished tweaking crates.io crate serde-json-core-fmt 0.1.1
[INFO] tweaked toml for crates.io crate serde-json-core-fmt 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb740601db9a82bcff2608cec37dacf741c9c9d4d4b6a5ed27b82fdfa5461fb7
[INFO] running `Command { std: "docker" "start" "-a" "bb740601db9a82bcff2608cec37dacf741c9c9d4d4b6a5ed27b82fdfa5461fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb740601db9a82bcff2608cec37dacf741c9c9d4d4b6a5ed27b82fdfa5461fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb740601db9a82bcff2608cec37dacf741c9c9d4d4b6a5ed27b82fdfa5461fb7", kill_on_drop: false }`
[INFO] [stdout] bb740601db9a82bcff2608cec37dacf741c9c9d4d4b6a5ed27b82fdfa5461fb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 980a2dc29038eb729f5ff60ed21b0b5b266acd2d37a97fbbbfbe540c81edc335
[INFO] running `Command { std: "docker" "start" "-a" "980a2dc29038eb729f5ff60ed21b0b5b266acd2d37a97fbbbfbe540c81edc335", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking serde-json-core-fmt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
[INFO] running `Command { std: "docker" "inspect" "980a2dc29038eb729f5ff60ed21b0b5b266acd2d37a97fbbbfbe540c81edc335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980a2dc29038eb729f5ff60ed21b0b5b266acd2d37a97fbbbfbe540c81edc335", kill_on_drop: false }`
[INFO] [stdout] 980a2dc29038eb729f5ff60ed21b0b5b266acd2d37a97fbbbfbe540c81edc335